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aleksklad [387]
3 years ago
14

latex-formula">
Mathematics
1 answer:
Mariulka [41]3 years ago
3 0

It is already simplified I'm pretty sure:

8m^2 + 30m + 7

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Mrs. Mashell is opening a college savings account for her daughter Janese. She deposited $4,000 into the account at a simple int
Elden [556K]

Answer:

6

Step-by-step explanation:

5 0
3 years ago
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PLEASE ANSWER ASAP!!! SHOW ALL THE STEPS.
fenix001 [56]

Answer:

For the first question x = 4\\ y = -1 and

For the second question x = 0.5\\ y = -1

Step-by-step explanation:

Given:

1.

x - 3y = 7

3x + 3y = 9

2.

8x+ 3y = 1

4x + 2y = 0

Elimination method :

In the elimination method we need to make the coefficient of x or the coefficient of y same in both the equation so by adding or subtracting we can eliminate the x term or the y term.

Then substitute that values which you will get on eliminating in any equation you will get the corresponding value.

For the first question, the y coefficient is same hence by adding both the equation we can eliminate 3y term. so on solving we get

(x - 3y) + (3x + 3y) = 7 + 9\\4x = 16\\x = \frac{16}{4}\\x = 4

Now substitute X equal to 4 in equation x -3y = 7 we get

4 - 3y = 7\\-3y = 7 - 4\\-3y = 3\\y = \frac{3}{-3}\\ y = -1\\

This way we have x is equal to 4 and y is equal to -1  for question number 1.

For the second question, we will make X coefficient same in the second equation that is multiplying by 2 to the equation 4x + 2y = 0 then we get

8x + 4y = 0\\

Now the coefficient of x term become same now we will subtract the two equations that is 8x + 3y = 1 and 8x + 4y =0 we get

(8x + 3y) - (8x + 4y) = 1 - 0\\3y - 4y = 1\\ -y = 1\\y = -1

Now substitute y equal to -1 in equation 8x +3y = 1 we get

8x + 3\times -1 = 1\\8x - 3 = 1\\8x = 1 + 3\\8x = 4\\x = \frac{4}{8}\\ x = 0.5\\

This way we have x is equal to 0.5 and y is equal to -1  for question number 2.

3 0
3 years ago
Jada has 4 meters of ribbon. How many pieces of ribbon 1 meter long can she cut from it?
Vesnalui [34]
She can cut 4 pieces from the ribbon.
3 0
3 years ago
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Solve for m -20+14m=10m+16
Kay [80]
-20+14m=10m+16
-10m. -10m
-20+4m=16
+20. +20
4m=36
/4. /4
m=9
6 0
4 years ago
a building in san francisco is shaped like a square pyramid it has a slant height og 856.1 feet and each side of its base is 145
Reptile [31]
We know that

for <span>a Square Pyramid
</span>[lateral area]=4*[a*s/2]--------> 2aS
where
a  is the length side of the square base
S is the <span>slant height
</span>a=145 ft
S=856.1 ft
[lateral area]=2*145*856.1---------> 248269 ft²

the answer is 248269 ft²
3 0
3 years ago
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