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Misha Larkins [42]
3 years ago
15

I need help finding the surface area of the pyramid

Mathematics
1 answer:
gayaneshka [121]3 years ago
5 0
It would be 60 mm ( i think )
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Write in slope-intercept form an equation of the line that passes through the points (−1,12) and (1,2).
zzz [600]

Answer:

y=-5x+7

Step-by-step explanation:

step 1

Find the slope

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

the points (−1,12) and (1,2)

substitute

m=\frac{2-12}{1+1}

m=\frac{-10}{2}

m=-5

step 2

we know that

The equation of the line in slope intercept form is equl to

y=mx+b

where

m is the slope

b is the y-intercept

we have

m=-5

point\ (1,2)

substitute in the linear equation and solve for b

2=-5(1)+b

b=2+5=7

therefore

y=-5x+7

4 0
3 years ago
Three times the sum of the numbers x and 5 is 21.
MrRissso [65]
3 (x+5)=21 is the answer
7 0
3 years ago
christian has $425.82 in his checking account . How much does he have in his account after he makes a deposit if 120.75 and with
Oksanka [162]
A deposit adds to the amount of a checking account.
So a deposit of $120.75 is + 120.75.
A withdraw subtracts from the amount of a checking account.
So a withdraw of $185.90 is - 185.90.

If the original amount is $425.82, you would simply add the amount of the deposit then subtract the amount of the withdraw.

425.82 + 120.75 - 185.90 = 360.67

So the amount in Christian's checking account after <span>a deposit if $120.75 and withdrawal of $185.90 is $360.67.

Answer:
$360.67

Hope this helps! :)
</span>
5 0
3 years ago
Factor the expression below x^2-64
Georgia [21]

Answer:

(x + 8) (x-8)

Step-by-step explanation:

x^2-64

Solve

a^2 - b^2 = (a+b) (a-b)

Where a = x , b = 8

(x + 8) (x-8)

6 0
3 years ago
Ruth Brown wants to borrow $2,600 for 90 days to pay her real estate tax. State Savings
zloy xaker [14]

Answer:

I NEED EM POINTs

Step-by-step explanation:

all are 798

5 0
3 years ago
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