2 years ago

Please help me with this math question

Mathematics

1 answer:

Salsk061 [2.6K]2 years ago

3 0

Answer:

Step-by-step explanation:

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Is perpendicular to . How many 90° angles are formed by the intersection?

xxTIMURxx [149]

4, there are 4 equal angles

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3 years ago

X+2y=8 2x-y=1 mathe question

Ira Lisetskai [31]

Answer:

x = 2 and y = 3

Step-by-step explanation:

We have

x+2y = 8 -----equation (i)

2x-y = 1 -----equation (ii)

Now,

x+2y = 8

or, x = 8-2y ------equation (iii)

Again,

2x-y = 1

or, 2x = 1+y

or, 2x-1 = y

Putting the value of 'x' from equation (iii)

or, 2(8-2y)-1 = y

or, 16-4y-1 = y

or, 16-1 = y+4y

or, 15 = 5y

or, y = 15/5

or, y = 3

Putting the value of 'y' in equation (iii)

x = 8-2y

or, x = 8-(2×3)

or, x = 8-6

or, x = 2

Therefore, x = 2 and y = 3.

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2 years ago

If U=pi(r+h),find r when U=16 1/2 and h=2 solve this question by take the value of pi 22/7

I am Lyosha [343]

$U=\pi (r+h) \\\\ 16 \frac{1}{2}= \frac{22}{7}\cdot (r+2) \\\\ \frac{33}{2} : \frac{22}{7}=r+2 \\\\ \frac{\not 33}{2}\cdot \frac{7}{\not 22}=r+2 \\\\ \frac{3}{2} \cdot \frac{7}{2}=r+2 \\\\ \frac{21}{4}=r^{(4}+2^{(4} \\\\ 21=4r+8 \\\\ 4r=21-8 \\\\ 4r=13 \\\\ \boxed{r=\frac{13}{4}}$

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3 years ago

Alyssa accepted a new job at a company with a contract guaranteeing annual raises. Alyssa will get a raise of $4000 every year a

Ksivusya [100]

Answer:

S = 4000n + 4500

Step-by-step explained

S = 4500

N = 0

Slope = 4000

Answer - S=4000n + 45000

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3 years ago

How do you simplify: 5(8 + 7) ? a. 75 b. 65 c. 47 d. 15

tia_tia [17]

Answer:

C. 47

Step-by-step explanation:

5(8 + 7)

Expand the brackets. Brackets mean to multiply.

5(8 + 7)

5 * 8 + 7

= 40 + 7

= 47

8 0

3 years ago

Read 2 more answers