Answer:
x = 10.
Step-by-step explanation:
The longest side , the hypotenuse = x + 3 because the lengths of the sides are positive.
So, by Pythagoras:
(x + 3)^2 = (x - 5)^2 + (x + 2)^2
x^2 + 6x + 9 = x^2 - 10x + 25 + x^2 + 4x + 4
0 = 2x^2 - x^2 - 10x + 4x - 6x + 29 - 9
x^2 - 12x + 20 = 0
(x - 10)(x - 2) = 0
x = 2, 10.
x cannot be 2 because that would make one side = 2- 5 = -3 so the answer is x = 10.
if you buy 20 apples for 10.00 how much is 1 apple?
answer dis then you got big brain! :)
Answer:
2 dollars each duh
Step-by-step explanation:
Can someone help who is good at pre algebra or algebra one? Tysm MAKE SURE ITS CORRECT (: I wanna get my math grade up
Answer:
Sorry not sure but try y-6= -1 (x - 3)
Step-by-step explanation:
Write an equation for the line that is perpendicular to the line y= -9 that passes through the point (-3,4).
I attached the answers down below. Much appreciated to the person who helps.
Answer:
Step-by-step explanation:
x= -3
If Alfonso does a job in 30 hours more than Zoe, and they can do the job together in 8 hours, how long would it take Zoe to do the job alone?
Answer:
Step-by-step explanation:
Let the time it will take Alfonso be x
Let the time it will take Zoe be y
If Alfonso does a job in 30 hours more than Zoe, then;
x = 30+y...... 1
Also if they can do the job together in 8 hours, then;
x+y = 8.... 2
Substitute 1 into 2;
x+y=8
30+y+y = 8
40+2y = 8
2y = -32
y = -16
Hence X = 30-16
X = 14
y = 30+14 = 44
hence it will take Alfonso about 44hours to do the work alone
What are the variable term in this expression 6x² +3ry + 3z
Answer:
x y and z?
Step-by-step explanation:
7,018 mm = 7.018 A. km B. m C. dm D. cm
Answer: B
Step-by-step explanation:
I need help answering this question!
Answer:
2x+7=-3+2x multiply what’s in the bracket by the negative sign
Collect like terms
2x-2x=-3-7, so
0=-10
Step-by-step explanation:
I hope this is the answer, if it helped please give me brainliest
the length of two sides of a triangle are 8cm and 15cm. between which two numbers will the third side of the triangle lie
Answer:
7 and 22
Step-by-step explanation:
The Sum of any Two Sides of a Triangle is Greater than the Third Side.
The third side = x
x < 8 + 15
x < 23
8 < x + 15
Can be any number in between 1 and 22.
15 < x + 8
Should be a number in between 7 and 22.
Amanda's poster is 0.85 meter long. Orlando's poster is 0.55 meter less than 1 meter long. Which expression shows the difference in the lengths of the posters?
A. 0.85−0.55
B. (0.85−0.55)+1
C.0.85−(1−0.55)
D. 0.85−(1+0.55)
Answer:
i think it is b
Step-by-step explanation:
!!!HELP ME WITH THIS QUESTION PLEASE!!!
Answer:
1, -5, -14
Step-by-step explanation:
Domain is the x-axis, and range is the y axis.
So plug in the x values (domain values) to the equation.
Answer:
ok really tough
Step-by-step explanation:
ok if you subtract u will get your answer
-3 (x + 10)
HELP
PLEASE
Answer:
−3X−30
Step-by-step explanation:
REALLY URGENT
There are two types of fish in a lake. These are carp and pike.
In a netted area of the lake 120 carp and 16 pike were caught
In the whole lake it is estimated there are 34 000 fish
Zalika estimated that there are 4000 pike in the lake altogether.
How does Zalika work out this estimate.
Answer: Ratios
Step-by-step explanation:
Zalika can work out this estimate by using the ratio of carp to pike that she first caught. This is how to use the ratios:
1) 120 carp : 16 pike --> from given information
2) 136 fish : 16 pike --> add the numbers together to get total fish compared to pike
3) Multiply by 250 --> 34000 divided by 136 is 250
4) 34000 fish : 4000 pike --> 16x250=4000
Evaluate this
(help)
Answer:
D. [tex]\frac{1}{27}[/tex]
Step-by-step explanation:
[tex]3^{-3}[/tex] = [tex]\frac{1}{27}[/tex]. First you need to remove the negative exponent, to do this move the term into the denominator. [tex]\frac{3^{-3} }{1}[/tex] becomes [tex]\frac{1}{3^{3} }[/tex], then solve for [tex]3^{3}[/tex], which equals 27. So your answer is [tex]\frac{1}{27}[/tex].
SOMEONE PLZ HELP ME I HAVE TO TURN THIS IS BY 3:00 TODAY!!!!!
Karen earns $5 by delivering newspapers each week. She saves $3 and she spends the rest. How many weeks will it take her to save enough money to buy a $35 gift card? (Use the table to help you solve the problem; you will need to copy it onto a piece of paper...)
explain your answer down below.
Answer:
Step-by-step explanation:
There is not a table to look at.
But, if she saves $3 a week. 35/3= 11.6. It'll take her 11.6 or 12 weeks to save up $35.
Answer:
12 weeks
Step-by-step explanation:
She earns $5 each week, but she only saves $3. This would mean that she saves $3 a week and with a end goal of $35, it would take 11.6 weeks, which would round up to 12.
Hope this helps :)
how do you do multiplication in 7th grade mathimatics
Answer:
Learn your timetables daily.
Step-by-step explanation:
You can find songs online to help you memorize and understand them in the simplest form.
Answer:
you should practice your timetables and do some math practice so you could understand other math like division.
Step-by-step explanation:
Eighteen 2.5 gallon buckets are needed to fill a cistern with water. Find the constant of variation. Please help! Thank you!
Given:
Eighteen 2.5 gallon buckets are needed to fill a cistern with water.
To find:
The constant of variation.
Solution:
If y is directly proportional to x, then
[tex]y\propto x[/tex]
[tex]y=kx[/tex]
Where, k is constant of variation.
In the given problem, water in cistern (w) is directly proportional to number of buckets (n).
[tex]w\propto n[/tex]
[tex]w=2.5n[/tex] (Capacity of each bucket is 2.5 gallons)
Therefore, the constant of variation is 2.5.
Answer:
45
Step-by-step
I just did 18 * 2.5!
It a simple answer!
The quantites are inversely so that means you multiply the numbers. Like 18 * 2.5. That's how I got 45
PRE/POST ASSESSMENT
Hector was making a solution. He put the components of the solution into a
beaker. Hector wanted to increase the amount of his solution and at the same
time keep the composition of the solution the same. The new solution will have
84 kilograms of water.
What will be the mass of the sugar in the new solution, in kilograms?
Hector's Solution
Component
Mass
Sugar
9.6 kg
Salt
7.0 kg
A 24.6
Water
12.0 kg
B
39.6
с
49.0
D
67.2
E
98.0
Answer:
oh wow thats alot
Step-by-step explanation:
Can a number be both rational and irrational? Why or why not?
Answer:
Step-by-step explanation:
If it is irrational, it can never be rational unless it is acted upon by something else like a power.
Pi, no matter what is done to it, can never be rational. Once a number is declared as irrational, that is what it remains.
Write the slope-intercept form of an equation of the line that passes through the given point and is parallel to the graph of the equation.
(-3,5), y=-5x+3
Is it
a. y=10x-5
b. y=-5x-10
c. y=-5x+10
d. y=1/5x-5
Please explain, I did not learn how to do this. Thanks!
Answer:
B
Step-by-step explanation:
Kinda complex to explain without a graph but its the answer
What’s the absolute value equation for |x+4|=12
Answer:
8 and -16...............
| x + 4 | = 12 <=> x + 4 = 12 hoặc -x - 4 = 12 <=> x = 8 hoặc x = -16
write the linear equation from the given information in slope intercept form (-1,3); slope=-3
Answer:
y = -3xStep-by-step explanation:
The standard expression of equation of a line in slope-intercept form is expressed as;
y = mx+c
m is the slope
c is the intercept
Given
slope m = -3
Point (x, y) = (-1, 3)
x = -1 and y = 3
Get the intercept
To get the intercept c, we will substitute the given values into the equation above to have;
y = mx+c
3 = -3(-1)+c
3 = 3 + c
c = 3-3
c = 0
Substitute m = -3 and c = 0 into the equation above;
y = mx+c
y = -3x+0
y = -3x
Hence the required linear equation is y = -3x
Which of the following sets of numbers could NOT represent three sides of a triangle
Answer:
4, 10, 15
Step-by-step explanation:
Because 4 plus 10 is less than 15
Write an equation of the line that is parallel to x=-11 that passes through the point (-9, 0).
12.) Find the x-intercept and y intercept of the following equation.
9x + 6y = -36
Answer:
Thevalue of x-intercept is 0
and y intercept is-6.
Step-by-step explanation:
here,9x+6y=-36
9x = -36 - 6y
x=(-36 -6y)/9
x=(-12-2y)/9.........(i)
putting value of x in question
9[(-12-2y)/9]+6y=-36
-12-2y+6y= -36
-12+4y= -36
4y=-24
y=-6
puting value of x in equation (i)
x=(-12-2y)/9
x=(-12-2×-6)/9
x=0
I have done your task. But i think it will help you. if it helps please my answer as brainliest answer.
please do .... for my hard work.
HELP!! Combining like terms with rational coefficients
− 2/1 (−3y+10)
Answer:
6y−20
Step-by-step explanation:
please help will mark brainliest if correct
Answer:
Step-by-step explanation:
∠A or ∠SAM
Can someone help me with the questions in the picture?
Answer:
1. x= -4
2. x= 18
3. x= -15
4. x = 6
Step-by-step explanation:
Use relationship of angles to create equations and solve for x
You need to pay attention to see if the sides will be equal to each other or equal to 180
first picture on top left is x = -4
second picture on top right is x = 19/2
third picture on bottom left is x = -5
fourth picture on bottom right is x = 166/41
Complementary and supplementary angles (no visual)
Za and Zb are complementary angles. Za measures 55°.
What is the measure of Zb?
Stuck? Watch a video or use a hint.
Report a problem
Pi
Tea
7 of 7
Answer:
b=35°
Step-by-step explanation:
complementary angles add up to 90°
a+b=90°
55°+b=90°
-55 -55
b=35°
hopefully this helps :)
The perimeter of a rectangle window is 226 cm. If the length of the window is 62 cm, what is its width?
Answer:
51 cm
Step-by-step explanation:
perimeter = 2 * length + 2 * width
226 = 2 * 62 + 2 * width
226 = 124 + 2 * width
226 - 124 = 2 * width
102 = 2 * width
102/2 = width
51 = width
Pls I need help with this geometry problem. It's due today.
Step-by-step explanation:
Yz / RT = SZ / ST
2X +2 / 3X -7 = 35 / 40= 7 / 8
8( 2x+2) = 7( 3x-7 )
16 x +16 = 21x 49
5x = 65
x =13
YZ = 2×13 +2 = 28