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3 years ago

Can someone help me with this ill give brainliest to the first answer

Mathematics

1 answer:

Scrat [10]3 years ago

3 0

Answer:

The correct answer is A.

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Find the area of a square with diagonals of length 9root2<br>

igomit [66]

Answer:

$A=162$

Step-by-step explanation:

The are of a square is $A=a^{2}$ so 9 root 2 is $9\sqrt{2}$ since the formula says that a need to be squared so we need to square 9 root 2 $(9\sqrt{2})^{2}$ which would be $162$ or another way would be to turn 9 root 2 into a decimal $9\sqrt{2} = 12.727292206...$ then you would square that number just like we did in the first example $(12.7272206)^{2}$ which would give you $161.98$ then all you have to do is round to the nearest tent then you would get $162$ as an answer

i would agree that this step requires to much work so just stick with the first way to do it.

thank you for waiting for this answers i hope it helps a lot i went into details to make sure that you understand if you still don't get it just post another question ill be more than happy to help you out.

5 0

4 years ago

Slope 8 ; through (4,3)

Reptile [31]

Answer:

y=8x-29

Step-by-step explanation:

Since we know the slope (m) is 8, we can plug it in the slope-intercept formula y=mx+b, making y=8x+b.

Now we need to find the y-intercept (b). To do that, you would need to plug in the points given to you, which were (4,3).

x=4, y=3... so 3=8(4)+b

Now you can solve for the variable b to find the y-intercept.

3=8(4)+b, multiply...

3=32+b, subtract 32 on both sides...

-29=b

Therefore, the y-intercept, or b, is -29.

The equation would be y=8x-29

7 0

3 years ago

Hannah is mixing paints to create a green color. Her mixture for green requires 2 parts blue, 1 part purple, and 4 parts yellow.

alexdok [17]

Answer: A

Step-by-step explanation:

Divide each part in 2.

2/2 parts blue, 1/2 part purple, and 4/2 parts yellow

Which equals l:

1 part blue, 0.5 part purple, and 2 parts yellow

4 0

3 years ago

What is the midpoint of the line segment with endpoints (3.2, 2.5) and

Ilya [14]

The correct answer is D. (2.4, -1)

5 0

3 years ago

Solve this system of equations using the substitution method.

marissa [1.9K]

Step-by-step explanation:

-4x - 20 = -2x

2x = -20

x = -10

y = -2x

y = -2(-10)

y = 20

4 0

3 years ago

Can someone help me with this ill give brainliest to the first answer​

Can someone help me with this ill give brainliest to the first answer