Answer:
1→10
Step-by-step explanation:
12
27
45
105/4
49/2
2/15
2/9
22/45
7/12
1/3
Help I have a C in math. I don't understand this Alegbra. If you get it right then I will give you Brainlist!
What is length of Ef?
A.10
B.15
C.20
D.v200
E.v300
F.v500
Answer:
Answer E is correct
Step-by-step explanation:
Let the Length of EF be x
Use PYTHAGORAS theorem to find the length of EF
EF² + DF² = DE²
[tex] {x}^{2} + {10}^{2} = {20}^{2} \\ {x}^{2} + 100 = 400 \\ {x}^{2} = 400 - 100 \\ {x}^{2} = 300 \\ x = \sqrt{300} [/tex]
So,
[tex]EF = \sqrt{300} [/tex]
Hope this helps you.
Let me know if you have any other questions :-)
The perimeter of a poster is 16 feet. The area is 15 square feet. What are the dimensions of the poster?
If a = -3, find the value of (the 2 on b and c is squared) a) 2a b) a2 c) 3a2
Answer:
4, -4, 36
Step-by-step explanation:
a) a*2 = -2*-2 = 4
b) a^2 = -2^2 = -4
c) a*3^2= 3*-2^2 = -36
Zahin has 4/6
kg of rice. She divides it into 5 equal portions to cook for dinner. How much rice, in kilograms, does she use to cook one portion for dinner?
fraction word problem
Answer:
2/15 or 0.13
Step-by-step explanation:
first you multiply 2/3 and 1/5 which gets you 2/15
Find the value of x. 2x – 15 – 7x + 24 = -36
Answer:
9
Step-by-step explanation:
hlo!! dear!! glad to help u!
2x – 15 – 7x + 24 = -36
2x -7x -15 +24= -36
-5 x + 9= -36
-5 x = -36-9
-5 x =-45
x = -45/-5
x = 8
thank u!!!
lily cleaned the coin fountain at the mall and found 20 coins consisting of nickels and quarters. Her collection totaled $2.60 . How many quarters did she find
Answer:
10
Step-by-step explanation:
eight quarters in $2.00, 2 quarters in .50 cents = 10 quarters.
the square root of a negative number is known as an _______ number
Positive number is a square root
Find the probability distribution for the following function: P(x) = (x/2)+1 for x = 4, 6, and 8
the difference of two number is 6 if the greater one is 17 find the smallest number
Answer:
11
Step-by-step explanation:
17-6=11
big brain
Answer:
11
Step-by-step explanation:
17-11=6 the smallest number is 11
After two consecutive years of 5% rates of return, what rate of return in the third year will produce a cumulative gain of 16%?
Using decimal multipliers, it is found that a rate of return of 5.2% in the third year will produce a cumulative gain of 16%.
The decimal multiplier for a increase of a% is given by:
[tex]M = \frac{100 + a}{100}[/tex]
In this problem, two increases of 5%, thus:
[tex]M = \frac{100 + 5}{100} = 1.05[/tex]
Another of x, that we want to find, and the result is a increase of 16%, thus:
[tex]M = \frac{100 + 16}{100} = 1.16[/tex]
The three increases(5%, 5% and x%) result in a increase of 16%, thus:
[tex]1.05(1.05)(x) = 1.16[/tex]
[tex]x = \frac{1.16}{(1.05)^2}[/tex]
[tex]x = 1.052[/tex]
1.052 - 1 = 0.052
A rate of return of 5.2% in the third year will produce a cumulative gain of 16%.
A similar problem is given at https://brainly.com/question/21806362
9. Which lines are parallel if mZ4=mZ5? Justify your answer.
Answer:
r || s
Step-by-step explanation:
m∠4 = m∠5 Given.
These angles are called alternate interior angles and because you are given that they are = then there are two parallel lines. The converse of the theorem stated. If alternate interior angles are cut by a transverse and two lines and the alternate interior angles are equal, then you have a pair of parallel lines.
Consider these four number lines of solutions.
4 number lines going from negative 5 to positive 5. Graph A: a point is at negative 4. Everything to the left of the point is shaded. Graph B: a point is at negative 4. Everything to the right of the point is shaded. Graph C: Points are at negative 4 and positive 4. Everything to the left of negative 4 and to the right of positive 4 is shaded. Graph D: points are at negative 4 and positive 4. Everything between the points is shaded.
Which graph represents the solution to the inequality |k|StartAbsoluteValue k EndAbsoluteValue greater-than-or-equal-to 4?
graph A
graph B
graph C
graph D
Answer:
its graph c
Step-by-step explanation:
Please answer asap
Please
Please
Step-by-step explanation:
Standard form:
y = ax² + bx + cVertex form:
y = (x - h)² + kIdentity used:
(a ± b)² = a² ± 2ab + b²6 - 7)
Standard to vertex form conversion by completing the square
y = x² - 3x + 16
= x² - 2*1*3/2 + (3/2)² - (3/2)² + 16
= (x - 3/2)² - 9/4 + 16 =
= (x - 1.5)² + 13.75
8 - 9)
Same as above
y = x² - 2x + 3
= x² - 2*1*x + 1² - 1² + 3
= (x - 1)² + 2
10 - 12)
Vertex to standard for conversion by opening parenthesis and simplification
y = (x - 11)² + 15
= x² - 22x + 121 + 15
= x² - 22x + 136
13-15)
Same as above
y = (x - 4)² + 11
= x² - 8x + 16 + 11
= x² = 8x + 27
need help plz help for math class
-8/27
Step-by-step explanation:
Just multiply this fraction by itself 3 times and you will get the answer then simplify.
the flag of a country contains an isosceles triangle. (Recall that an isosceles triangle contains two angles with the same measure.) If the of the third angle of the triangle is 40° more than three times the measure of either of the other two angles, find the measure of each the triangle. (Recall that the sum of the measures of the angles of a triangle is 180°.)
The two equal angles are each 36°.
The third angle is 108°.
a bit hard. thank you if u can do it for me? <3
The triangle shown is a right triangle shown by the little square inside of it.
Area of a triangle is 1/2 x height x base
Rotating the shown triangle so the square is at a bottom corner the height is 6 and the base is 6
Area = 1/2 x 6 x 6 = 18 square cm
A computer programming team has 17 members. (For each answer, enter an exact number.) (a) How many ways can a group of nine be chosen to work on a project? 24310 Correct: Your answer is correct. (b) Suppose nine team members are women and eight are men. (i) How many groups of nine can be chosen that contain five women and four men? 1 Incorrect: Your answer is incorrect. (ii) How many groups of nine can be chosen that contain at least one man? 9 Incorrect: Your answer is incorrect. (iii) How many groups of nine can be chosen that contain at most three women? (c) Suppose two team members refuse to work together on projects. How many groups of nine can be chosen to work on a project? (d) Suppose two team members insist on either working together or not at all on projects. How many groups of nine can be chosen to work on a project?
The number of groups that can be chosen from the team of 17 depends on
the given conditions of the selection.
The correct responses are;
(a) The number of ways of choosing groups of 9 from the 17 members are 24,310 ways.(b) (i) The number of groups of 9 containing 5 women and 4 men are 8,820 groups.(ii) The number of groups of 9 that contain at least one man is 24,309 groups.(iii) The number of groups of 9 that contain at most 3 women are 2,649 groups.(c) If two team members refuse to work together on projects, the number of groups of 9 that can be chosen are 17,875 groups.(d) If two team members must work together or not at all the number of groups of 9 that can be chosen are 1,430 groups.Reasons:
The combination of n objects taking r at a time is given as follows
[tex]_nC_r = \dbinom{n}{r}[/tex]
(a) The number of ways of choosing groups of 9 from the 17 members is given as follows;
Number of ways of choosing groups of 9 = [tex]\dbinom{17}{9}[/tex] = 24,310 ways.
(b) (i) Number of women = 9
Number of men = 8
Number of groups of 9 containing 5 women and 4 men = [tex]\dbinom{9}{5} \times \dbinom{8}{4}[/tex]
[tex]\dbinom{9}{5} \times \dbinom{8}{4} = 126 \times 70 = 8,820[/tex]
Number of groups of 9 containing 5 women and 4 men = 8,820 groups.
(ii) The number of groups that contain at least one man is [tex]\dbinom{17}{9} - \dbinom{9}{9}[/tex]
[tex]\dbinom{17}{9} - \dbinom{9}{9} = 24,310 - 1 = 24,309[/tex]
The number of groups that contain at least one man are 24,309 groups.
(iii) The number of groups of 9 that contain at most 3 women if given as follows;
[tex]\dbinom{8}{8} \times \dbinom{9}{1} + \dbinom{8}{7} \times \dbinom{9}{2} + \dbinom{8}{6} \times \dbinom{9}{3} = 2,649[/tex]
The number of groups of 9 that contain at most 3 women are 2,649 groups.
(c) Given that two team members refuse to work together on projects, the number of groups of 9 that can be chosen are [tex]\dbinom{15}{9} + 2 \times \dbinom{15}{8}[/tex]
[tex]\dbinom{15}{9} + 2 \times \dbinom{15}{8} = 5,005 + 2 \times 6,435 = 17,875[/tex]
(d) Two team members must work together or not at all is [tex]\dbinom{15}{7} - \dbinom{15}{9}[/tex]
[tex]\dbinom{15}{7} - \dbinom{15}{9} = 6,435 - 5,005 = 1,430[/tex]
The number of groups of 9 that can be chosen two team members must work together or not at all are 1,430 groups.
Learn more here:
https://brainly.com/question/2790592
https://brainly.com/question/6949387
The manager of the school bookstore ordered 180 boxes of pencils. Based on the average daily use, she knows that the pencils will last about 30 days. Which linear equation represents the situation?
How many boxes of pencils should the manager expect to have after 20 days?
A. y = - 6x + 180; 120 boxes
B. y = - 6x + 180; 60 boxes
C. y = 6x + 180; 120 boxes
D. y = 6x - 180; 60 boxes
Will give 26 points!!
By visual inspection alone, which one of the following pairs of variables has a stronger relationship between them?
1. Community violence exposure and Bullying by peers have a strong relationship at -0.24.
2. Community violence exposure and Bullying by peers have a strong relationship at 0.20.
3. Community violence exposure and SAT-9 Mathematics have a stronger relationship at -0.24.
4. Community violence exposure and SAT-9 Mathematics have a stronger relationship at 0.20.
I keep getting D wrong
What is the sum of 6.7
Answer:
the number must be greater than 6.7 Therefore the sum is negative
6.7-7=-0.3
Answer:
the number must be greater than 6.7 Thus, the sum will be negative
for example the number could be 7
Step-by-step explanation:
6.7-7=-0.3
PLEASE HELP WITH THIS ONE QUESTION
A 60 cm by 80 cm photo is to be surrounded with a matting of equal width. The photo and matting is to be covered by a 1 m^2 sheet of expensive glass. Find the width of the matting.
Find the percent of change from
10 yards to 15 yards
1. 5%
2. 33%
3. 15%
4. 50%
Answer:
option 4
Step-by-step explanation:
Percent change is calculated as
[tex]\frac{change}{original}[/tex] × 100%
change = 15 - 10 = 5 , then
percent change = [tex]\frac{5}{10}[/tex] × 100% = 5 × 10% = 50%
Hurry please What is the equation of this line
A. Y=1/4x-6
B. Y=6x-4
C. Y=6x-1/4
D. Y=4x-6
What is the equation of this line?
Answer:
D. Y = 4x-6
Find the slope between these two points:
(6, -12), (15, -3)
Answer:
The slope is 1
Step-by-step explanation:
Answer:
1+6/9
Step-by-step explanation:
-3-12,
6 -15
=-15/-9=1 and6/9
Which if the following is NOT a function and WHY? Provide reasoning
Answer: A
Step-by-step explanation:
A is not a function because in order to be a function. It has to pass the vertical line test. based on the graph, it doesn't pass the test. You can search up the graph on desmos.
Which pairs of quadrilaterals can be shown to be congruent using
rigid motions?
Select Congruent or Not
Congruent for each
pair of quadrilaterals.
Not
Congruent
Congruent
quadrilateral 1 and
quadrilateral 2
quadrilateral 1 and
quadrilateral 3
quadrilateral 1 and
quadrilateral 4
quadrilateral 2 and
quadrilateral 3
quadrilateral 2 and
Rigid transformation do not alter the sides and angle measurements of a shape.
The true statements are:
quadrilateral 1 and quadrilateral 2 - Not congruent quadrilateral 1 and quadrilateral 3 - Not congruent quadrilateral 1 and quadrilateral 4 - Not congruent quadrilateral 2 and quadrilateral 3 - CongruentFrom the graph, we have the following highlights
Quadrilaterals 2, 3 and 4 are congruentQuadrilateral 1 does not have equal measure with any of the other quadrilaterals.Hence, the first three statements are not congruent, while the last statement is congruent.
Read more about congruent shapes at:
https://brainly.com/question/24430586
Ming's team cleans 3 animals per hour after an oil
spill. Nina's team cleans 6 animals per hour. How
much longer does it take Ming's team to clean
12 animals?
Answer: 2 hours
Step-by-step explanation:
[tex]Mingn's \ team \\\\ 3\ animals -1 h \\\\ 12 \ animals -? h \\\\ ?=\dfrac{12}{3} =\boxed{4 \ hours}[/tex] [tex]Nina's \ team \\\\ 6\ animals -1 h \\\\ 12 \ animals -? h \\\\ ?=\dfrac{12}{6} =\boxed{2 \ hours}[/tex]
[tex]\rm Difference: \\\\4-2=\bf 2 h[/tex]
Answer:
2 hours longerStep-by-step explanation:
Time Ming's team needs:
12/3 = 4 hoursTime Nina's team needs:
12/6 = 2 hoursThe difference:
4 - 2 = 2 hoursWhen converted to a household measurement, 9 kilograms is approximately equal to a
Answer:
D) 19.8 lbs
Explanation:
1kg in household measurement is equal to 35.274 ounces. 35.274*9=317.466 ounces.
1kg is also equal to 2.205 lbs. 9*2.205=19.8416
9 kg is also equal to 9000 grams, but grams are not a part of the household measurement system
a) 9000 grams. b) 9000 ounces. c) 19.8 ounces. d) 19.8 pounds.
This leaves us with 19.8 lbs