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alina1380 [7]
3 years ago
11

1.1. Which statement explains why the two systems of equations below have the

Mathematics
1 answer:
marin [14]3 years ago
7 0

Answer:

B. The first equation in B is the sum of the equations in A, while the other is obtained

by multiplying the first equation in A by 2.

Step-by-step explanation:

If we add the first two equations that shown in A so

6x + 8y + 2x - 5y = -10 + 12

8x + 3y = 2

Now the first equation in A would be multiplied by 2

So

2(6x + 8y = -10)

12x + 16u = -20

Therefore the correct option is B.

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Check your answer for 3(p+2)=18
tiny-mole [99]

3(p + 2) = 18

3p + 6 = 18

3p = 12

p = 4

Check:

3(p + 2) = 18

3(4 + 2) = 18

3(6) = 18

18 = 18

This proves that p = 4.

⭐ Answered by Hyperrspace (Ace) ⭐

⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐

⭐ If you have questions, leave a comment, I'm happy to help! ⭐

7 0
3 years ago
Read 2 more answers
What is 37 percent of 59052
patriot [66]

Answer:21,849.24

Step-by-step explanation:

7 0
3 years ago
Can someone tell me the surface area and volume for these? I need the steps and formula as well. Please help me.
nordsb [41]

1st pic

Triangle prism

a triangular end with a base of 27 mm and a height of 23 mm.

the length of each side is 56 mm and the width of each side is 27 mm

SA=bh+(s1+s2+s3)H

SA=(27)(23)+(27+27+27)(56)

SA= 621 + 4536

SA=5157 mm^2

 

V = ½ blh

V = ½ (27)(23)(56)

<span>V = 17388 mm^3</span>


2nd pic
Cone
SA = πr(r + √(h^2 + r^2) (r = 4, h = 7)
SA = 4π (4 + √(7^2 + 4^2))
SA = 4π (4 + √(49 + 16))
SA = 4π (4 + √65 )
SA = 16π + 4√65 

V = 1/3 πr^2h (r = 4, h = 7)
V = 1/3 π (4^2)(7)
V = 112/3 π
V = 37 1/3 π 

3rd pic
sphere:

SA = 4 <span>π r^2 as you know r = 14/2 = 7
SA = 4</span>π(7^2) = 4π(49) = 196<span>π m^2

V = 4/3</span><span>πr^3
V = 4/3</span><span>π(7^3)
V = 4/3</span><span>π(343)
V = 1372/3 </span><span>π
V =  457 1/3 </span><span>π m^3
</span><span>

</span>
5 0
3 years ago
In ΔXYZ, x = 71 cm, y = 91 cm and z=71 cm. Find the area of ΔXYZ to the nearest square centimeter.
anyanavicka [17]

since its an isoscelies trangle, they probably wanted you to do base times height

make a 71-91/2-x x triangle

where x is the height of the triangle to the base 91 and 71 is the hypothenuse

and then do bh/2

or

use heron's formula

s= 71+91/2

area= \sqrt{(71+91/2)(71+91/2-71)(71+91/2-71)(71+91/2-91)}

have fun solving that

5 0
3 years ago
How to solve number 5
boyakko [2]

Answer:

\frac{2}{3} the probability it will occur is in favor.

Step-by-step explanation:

If we are trying to  find the odds in <em>favor </em>of it occurring it is really simple, it already gives us the answer.

The odds of it occurring are \frac{2}{3}

The odds of it <em>not </em>occurring are \frac{1}{3}.


The favor is in of it occurring at \frac{2}{3}

8 0
3 years ago
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