All categories

3 years ago

Grade 9 mathematics please help asap. Thank you so much!!!

Mathematics

1 answer:

elena55 [62]3 years ago

8 0

If the side of square P is x and the side of square Q is y, we have x+y=26. In addition, 3*the perimeter of P+8*4y=3*4x+32y=12x+32y=492.

We have
x+y=26
12x+32y=492

Multiplying the first equation by -12 and adding it to the second, we get
20y=180 and dividing by 20 we get y=9. Plugging it into the first equation, we get 26-9=17=x. Since the area of square P is x^2 and Q is y^2,
x^2+y^2=19^2+7^2=410=the sum of the squares

You might be interested in

<img src="https://tex.z-dn.net/?f=8%28%20%7B4%7D%5E%7B2%7D%29%20%2B%20%20%7B2%7D%5E%7B4%7D%20" id="TexFormula1" title="8( {4}^{2

cluponka [151]

The given expression $8(4)^2+2^4$ is equal to 144 or $12^2$

Solution:

Given expression is:

$8(4)^2+2^4$

We have to evaluate the above given expression

We know that,

$(4)^2 = 4 \times 4 = 16$

$2^4 = 2 \times 2 \times 2 \times 2=16$

Substituting these in above given expression, we get

$8(4)^2+2^4=8 \times 16+16\\\\8(4)^2+2^4= 128+16\\\\8(4)^2+2^4=144$

Also we know that,

$12 \times 12 = 144$

Therefore,

$8(4)^2+2^4=144 = 12 \times 12 = 12^2$

Thus the given expression $8(4)^2+2^4$ is equal to 144 or $12^2$

7 0

4 years ago

How can you check if the point (-3, -7) is a solution to the following system of equations: y = 4x 5 and y = x - 4 *

Ket [755]

I think it’s sometimes

3 0

3 years ago

Read 2 more answers

PLSSS HELPPP I BEG , it’s geometry

vodomira [7]

Answer:

x = 30°, y = 90°

Step-by-step explanation:

$(y + x) + (y - x) = 180 \\ 2y = 180 \\ y = 90 \\$

$2x + y + x = 180 \\ 3x + 90 = 180 \\ 3x = 90 \\ x = 30$

5 0

4 years ago

The sum of the angle measures of any trapezoid is greater than the sum of the angle measures of any parallelogram.

Musya8 [376]

Answer:

False. Trapezoids and parallelograms are both types of quadrilaterals. 4 sided figures. The sum of a quadrilateral's angles is always equal to 360. The sum of a trapezoid's angles, as well as the sum of a parallelogram's angles, will always be equal. I hope this answers your question.

Step-by-step explanation:

6 0

3 years ago

27. What is the value of x? own 52 48 X A 20 B 26 C 32 D 34 E 38

Artyom0805 [142]

Answer is A

lmk if im wrong

8 0

3 years ago