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Related Questions
An art teacher has 28 students in her first-period class and 24 students in her second-period class. If almost 30% of the students in these classes are boys, about how many boys are in her first two classes?
please helppppppppppppppppppppppppppppppp
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Answer:
.30 × 52 = 15.6 = 16 boys in the two classes
HELPP PLEASEEEE!! LOOK AT THE IMAGE
Answers
Answer:
Step-by-step explanation:
Factors(7 and 10) are numbers that multiply to make a number(70) How many of those numbers are a factor of 7. Only 7 can go into 70 evenly
Which is only 1 out of 4 of the numbers
So your fraction is
p(factor of 70) 1/4.
The last two questions on a quiz were a
true or false question and a multiple choice
question with 4 answer choices. Each ques-
tion had only one right answer. What is the
probability of guessing ______
(a) both questions correctly
(b) both questions incorrectly
(c) both correctly from the remaining
options, knowing that a and b on the
multiple choice were incorrect
Write the probability as a reduced fraction, decimal rounded to the hundreds place, and a whole percent
Answers
Answer:
(a) The probability of guessing both questions correctly is (1/2) * (1/4) = 1/8, or 0.125, or 12.5%.
(b) The probability of guessing both questions incorrectly is (1/2) * (3/4) = 3/8, or 0.375, or 37.5%.
(c) The probability of guessing both questions correctly from the remaining options is (1/3) * (1/3) = 1/9, or approximately 0.111, or 11.1%.
Hope this helps!
Answer:
(a) The probability of guessing both questions correctly is (1/2) * (1/4) = 1/8, or 0.125, or 12.5%.
(b) The probability of guessing both questions incorrectly is (1/2) * (3/4) = 3/8, or 0.375, or 37.5%.
(c) The probability of guessing both questions correctly from the remaining options is (1/3) * (1/3) = 1/9, or approximately 0.111, or 11.1%.
Hope this helps!
HELP ME PLEASE I DON'T UNDERSTAND !!!!!!!!!!!!!!!!!!!!!!
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so the answer should be 3,4,7
Please help! :( Was sick for a week now dying.
The tree diagram below shows all of the possible outcomes for flipping three coins.
A tree diagram has outcomes (H, H, H), (H, H, T), (H, T, H), (H, T, T), (T, H, H), (T, H, T), (T, T, H), (T, T, T).
What is the probability of one of the coins landing on tails and two of them landing on heads?
1/4
3/8
1/2 This is not correct I know because I got it wrong onn edge.
3/4
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Reason: Amount of them landing on one tails and two heads / Whole amount of the tree diagram , My explanation sucks sorry
There’s 8 possibilities and 3 of them have two H and one T (HHT, THH, and HTH)
Help please if u can explain why that would also help but u don’t have to
Answers
Answer:
D. It's like multiplying a fraction by -1: it multiplies only the numerator
It’s B because multiplying any number by one equals the other number so therefore, 6 x -1 (meaning the negative sign before the parentheses) equals -6 and -7 x -1 equals 7 because a negative plus a negative equals a positive.
Integer rules are key here!!
Hope this helped.
please help i would really appreciate it
Answers
Answer:
The length of the missing side is 21 cm.
Step-by-step explanation:
[tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
[tex]a^{2}[/tex] + [tex]28^{2}[/tex] = [tex]35^{2}[/tex]
[tex]a^{2}[/tex] + 784 = 1225
[tex]a^{2}[/tex] + 784 - 784 = 1225 - 784
[tex]a^{2}[/tex] = 441
[tex]\sqrt{a^{2} }[/tex] = [tex]\sqrt{441}[/tex]
a = 21
Helping in the name of Jesus.
ANSWER QUICK PLS
look at the trapezium below, work out the size of angle
angle tuv
angle vwt
give your answer in degrees
Answers
Answer:
Step-by-step explanation:
The value of angle ADC is 157.4°
How do you find angle In a trapezium?
The sum of angles in a trapezoid-like other quadrilateral is 360°. So in a trapezoid ABCD, ∠A+∠B+∠C+∠D = 360°. Two angles on the same side are supplementary, that is the sum of the angles of two adjacent sides is equal to 180°. The length of the mid-segment is equal to 1/2 the sum of the bases.
Therefore angle A + angle D = 180
using trigonometry,
cos A = 12/13
A = cos^-1(0.923)
A = 22.63°
therefore angle D = 180-22.63
= 157.4° ( 1 dp)
learn more about angle in a trapezium from
brainly.com/question/30179943
Answer:
see below
Step-by-step explanation:
TUV = 180-107 = 73
VWT = 180-58 = 22
PLEASE HELP QUICK!!!
In which step does the first mistake appear
(23.8 / 2 + 12) + 14.5 / 2
step 1 (23.8 / 14) + 14.5 /
2 step 2 1.7 + 14.5 / 2
step 3 1.7 + 7.25
step 4 8.95
Answers
Answer:
The mistake appears in step 1 where 23.8 is divided by 14 instead of 2.
The correct first step should be: (23.8 / 2) + 12 + (14.5 / 2)
Hope this helps!
Answer:
A
Step-by-step explanation:
The error arises in the equation "(23.8 / 2 + 12)", where the division is incomplete. A slick fix is to rephrase it as "(23.8 / 2) + 12" to ensure accurate calculation, with the division taking precedence over addition, resulting in a cooler computation!
pls help quick 50 points
32x+5x
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Answer: 37x
Step-by-step explanation:
because both terms have an x after them, they are "like terms", so you can add the coefficients (numbers in front of x)
32+5=37
so your answer is 37x because you keep the term
ex. 5x+6y are different terms so you can't add them, 5 is in terms of x and 6 is in terms of y.
It's like say i have 5 times a certain numbers of apples
and 6 times a certain number of oranges
and they want to know how many apples you have
you can't say 30 times that number of apples. It just is 5 times that number of apples. you can't combine
Determine the line of reflection.
Reflection across x = 4
Reflection across y = 4
Reflection across the x-axis
Reflection across the y-axis
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Answer:
The correct answer:
Reflexion across x = 4
Answer:
The correct answer:
Reflexion across x = 4
Evelyn deposited $23,750 in a savings account that earns 5.3% simple interest. Evelyn has not made any deposits or withdrawals since she opened the account. Approximately how many years have passed since Evelyn opened the account if her latest balance is $28,785?
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FIRST ANSWER=BRAINLIEST ANSWER :)))))
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First you need to draw in a diagonal across the "floor" of the room connecting 2 vertices. You should draw the diagonal so that it's going in the same direction as the spider's thread; the diagonal is drawn in the wrong way if it intersects across the spider's thread.
Then you need to mark in the measures. The figures that are parallel to each other are congruent, so they have equal measures. For example, the rectangle that is parallel to the 6 by 8 one has the same measures as that one. Also, all of the walls of the room are rectangles. That means that the opposite sides of each rectangle have equal measures.
Because the diagonal divides the rectangle into 2 right triangles, you can then use the Pythagorean theorem to find the length of the diagonal that you drew in. (12 squared + 8 squared = length of the diagonal squared, and solving gives you the length of the diagonal as the square root of 208)
Finally, you can see that there is another right triangle formed with the diagonal that includes the spider's thread. With the length of the diagonal and the length of 6 ft, you can use the Pythagorean theorem to find the length of the spider's thread. (6 squared + the square root of 208 squared = length of the thread squared) The length of the spider's thread is the square root of 244, which is 15.6 ft rounded to the tenth's place.
How do you these math question???
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x=4
Step-by-step explanation:
if x equals 4 the whole equation satisfys
How do you rewrite fractional exponents?
A as a square root
B as a negative
C reciproacate
Answers
Answer:
A as a square root
Step-by-Step:
Fractional exponents are roots and nothing else.
A car dealership has various combinations of vehicles in their car lot, all of which have an equally likely chance of being selected.
Use the list of options below to determine the probability of each vehicle being selected. The problem is based on independent events.
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Answer:
Step-by-step explanation:
The probabilities of each of the following combination in question is 1/8, 1/6, 1/8, and 1/12 respectively.
The car dealership offers combinations of car parameters. The possible values of each car parameter are :
Vehicle = [Sedan, Suv, Truck]
Exterior color = [Red, Blue, Silver, Black]
Interior Material = [Leather, Cloth]
1. The probability of selecting a Silver Vehicle with a Cloth Interior is 1/8.
P(Silver, Cloth) = P(Exterior = Silver, Interior=Cloth)
= P(Exterior = Silver) * P(Interior=Cloth)
= (1/Total exterior options) * (1/Total interior options)
2. The probability of selecting an SUV or Truck with a Red or Black color and Cloth Interior is 1/6.
P(SUV|Truck, Red|Black, Cloth)
= P(Vehicle=Suv|Truck, Exterior = Red|Black, Interior=Cloth)
= P(Vehicle=Suv|Truck) * P(Exterior = Red|Black) * P(Interior=Cloth)
= (2/Total vehicle options) * (2/Total exterior options) * (1/Total interior options)
3. The probability of selecting a Sedan of a non-Red color and Cloth Interior is 1/8.
P(Sedan, !Red, Cloth)
= P(Vehicle=Sedan, Exterior != Red, Interior=Cloth)
= P(Vehicle=Sedan) * (1- P(Exterior = Red)) * P(Interior=Cloth)
4. The probability of selecting a Truck of a Blue or Black color and Leather Interior is 1/12.
P(Truck, Blue|Black, Leather)
= P(Vehicle=Truck, ExteriorBlue|Black, Interior=Leather)
= P(Vehicle=Truck) * P(Exterior = Blue|Black)) * P(Interior=Leather)
What is the value of the expression 4x − y when x = 3 and y = 1? (5 points) 1 6 11 12
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Answer:
Option 11 is correct.
Step-by-step explanation:
The values of the expression 4x − y when x = 3 and y = 1 will be 11.
Answer:11
Step-by-step explanation: 4*3-1=12-1=11
Jamal performed an experiment flipping a coin. He did 10 trials and then his arm got tired. He recorded his results in the table. Based on the experimental probability, Jamal predicted that the number of times the coin lands heads up will always be greater than the number of times it lands tails up. What is the error in his prediction?
A 3-column table with 2 rows. Column 1 is labeled Coin with entries heads, tails. Column 2 is labeled Observed frequency with entries 8, 2. Column 3 is labeled Experimental probability with entries 0.80, 0.20.
He should have performed fewer trials before comparing them to the theoretical probability.
He did not need to perform the experiment to compare theoretical and experimental probabilities.
He should have subtracted the theoretical probability from the experimental probability.
He did not perform enough trials to compare the theoretical and experimental probabilities.
100 points
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Answer: He did not perform enough trials to compare the theoretical and experimental probabilities.
Step-by-step explanation:
He only gave two entries for the experimental probability.He would need atleast four or three.
Hope this helped you!
Answer: He did not perform enough trials to compare the theoretical and experimental probabilities.
Step-by-step explanation:
He only gave two entries for the experimental probability.He would need atleast four or three.
Hope this helped you!
HELP!!! LOOK AT IMAGE
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Answer: 100%
Step-by-step explanation:
Please help me out. Ik its late but whoevers up rn please help me out this is needed by 12pm tomorrow. Thank You!!
Answers
Answer:
B 30°
Step-by-step explanation:
come now.
the sum of all angles around one point on one side of a line is 180°.
why ?
because any line with a point can be seen as a diameter of a circle with that point as center.
and every side of the line represents then a half-circle.
and a half-circle stands for 360/2 = 180°.
so,
180 = (2x + 70) + (x - 10) = 2x + 70 + x - 10 = 3x + 60
120 = 3x
x = 40
2x + 70 = 2×40 + 70 = 80 + 70 = 150°
x - 10 = 40 - 10 = 30°
180 = Q + (2x + 70) = Q + 150
30° = Q
ASAP I WILL GIVE BRAINLIEST
A composite figure is shown.
Which of the following represents the total area of the figure?
10.663 in2
24.413 in2
28.448 in2
34.335 in2
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5.1975 is the area of the small triangle
4.725 is the area of the larger triangle
Add them together,
24.4125 or simplified, 24.413
Answer my recent unanswered pre-algebra questions for brainliest!
Answers
Answer:
Only if you award me brainliest
Ok I will answer your recent unanswered pre-algebra questions.
But one thing…. Marking my answer as the BRAINLIEST. Is a must!
Jackie plans to plans to paint the finger nails of 8 friends. She finishes painting 4 of her friends nails. If each friend has ten nails to paint, how many nailes does Jackie still need to paint? Write and solve an equation to show how many more nails Jackie needs to paint.
Answers
Answer:40
Step-by-step explanation:
each friend has 10 nails and there is a total of 8, 8 x 10 80 - 40 = 40 in other words Jackie has to paint 40 finger nails
If Jackie has already painted 4 friends' nails, she has painted 4 x 10 = 40 nails.
To find out how many more nails Jackie needs to paint, we can subtract the number of nails she has already painted from the total number of nails she needs to paint:
80 - 40 = 40
So Jackie still needs to paint 40 nails.
does anyone know how to find the length and the width with only the volume(250) and a height(8)?
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Answer: lxWxh= v
Step-by-step explanation:
To find the length of a rectangular prism, there should be two missing sides. Since we don't have length or width, you find what times 8 times another number equals 250.
PLS PLS HELPPP!!! LOOK AT IMAGEEE
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Answer:
50%
Step-by-step explanation:
Three out of the six choices are odd. (1,2,3,4,5,6)
[tex]\frac{3}{6}[/tex] = .5 Multiply .5 buy 100% to get the percentage.
To multiply by 100% move the decimal two places to the right
50%
Helping in the name of Jesus.
Answer: 50%
Step-by-step explanation:
There are 3 odd numbers on a 6 sided dice (1,3 and5)
so you have a 3 out of 6 chance of rolling odd
P(odd)=3/6
convert to decimal first
P(odd)=.5 then move decimal over 2 times to the right to convert to %
P(odd)=50%
the list represents a student's grades on tests in their math class. 59, 65, 70, 80, 98, 71, 45, 79, 77, 85 find the mean and interpret its meaning as it relates to the student's overall work in the course.
A. The mean is 72.9 and shows that the student has an average grade and understanding of the subject but struggles at times.
B. The mean is 74 and shows that the student has a poor grade and struggles understanding the subject.
C. The mean is 80.6 and shows that the student has an average grade and understanding of the subject.
D. The mean is 98 and shows that the student has a high average and fully understands the subject.
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Answer:
Step-by-step explanation:
the average score, calculated by dividing the sum of scores by the number of examinees. Median: the middle raw score of the distribution; 50 percent of the obtained raw scores are higher and 50 percent are lower than the median.
A restaurant sells steaks for $23 per steak. How much money does the restaurant make if they sell 420 steaks.
Answers
$23x 420 Steaks is $9660
Answer:
$9,660
Step-by-step explanation:
$23 x $420 = $9,660
ayo 30 pts
What is the distance between the two points shown below?
6 units
0 units
4 units
8 units
Answers
Answer:
The distance between these two points is 4 units.
Answer:
4 units
Step-by-step explanation:
There are only 4 units of distance since in the y-axis, the first point is found on 0 and the second point is found on 4.
If Jason ran 1.8 miles and Josh ran
3,200 yards, who ran the farthest?
(1 mile = 5,280 feet)
Answers
Answer: Josh ran the farthest.
Step-by-step explanation:
1 mile = 5,280 feet
1.8 miles = 1.8 x 5,280 feet = 9,504 feet
1 yard = 3 feet
9,504 feet = 9,504 / 3 yards = 3,168 yards
So Jason ran 3,168 yards.
Since 3,200 yards is greater than 3,168 yards, Josh ran the farthest.
Answer:
Josh ran further
Step-by-step explanation:
I converted Josh's yards to miles.
[tex]\frac{3200yards}{1 }[/tex] · [tex]\frac{3 feet}{1 yard}[/tex] · [tex]\frac{1 mile}{5280feet}[/tex] cancel out the words that you see on the top and on the bottom
[tex]\frac{3200}{1}[/tex] · [tex]\frac{3}{1}[/tex] [tex]\frac{1mile}{5280}[/tex] Now simplify by multiplying
[tex]\frac{9600 miles}{5280}[/tex] = 1.8181... This is a repeating number
1.8181... is larger than 1.8
Helping in the name of Jesus.
8th grade math i mark as brainliest
Answers
Answer:
0.083 or 8.3%
Step-by-step explanation:
Since there are initially four cards, each card has a 25% (or 1/4) chance of being chosen. So the 8 card would have a 1/4 chance of being chosen.
Since the first card was chosen and not put back into the deck, the percent chance of each chosen card changes from 25% to about 33.3% (or 1/3) chance of being chosen. So the 8 card would now have a 1/3 chance of being chosen.
Since the question is asking what the percentage of choosing an 8 twice without replacing it is, you would multiply each of the percent chances that 8 card has to be chosen. In this case, multiply 1/4 and 1/3
This will result in about 0.083. To change to a percentage, multiply by 100 and the answer will end up at 8.3%.
Answer: 0%
Step-by-step explanation:
If you pick a 8 the first time, and you don't put it back, then there is no chance to get a 8 the second time. However, fi you pick a number other than 8 the first time, and pick 8 the second time, you didn't get 8 both times. Hope this helps!