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4 years ago

13

What is -3y+12=-48? Ueuehehhsh

2 answers:

Marina CMI [18]4 years ago

7 0

Answer:

-12

Step-by-step explanation:-3y+12=48

48-12= 36

36/ (-3) = -12

Natasha_Volkova [10]4 years ago

7 0

The answer is y = 20

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Find 3 numbers in G.P whose sum is 28 and whose product is 512

nataly862011 [7]

Answer:

4, 8, 16.

Step-by-step explanation:

Let the three numbers in GP be $r, ra, ra^2$ , where $a \ne 0$ . We are given that $r + ra + ra^2 = 28$ and $r \cdot ra \cdot ra^2 = r^3a^3 = 512$ , the latter of which gives $ra = \sqrt[3]{512} = 8$ . So substituting this into the former equation gives $\frac{8}{a} + 8 + 8a = 28$ or

$8 + 8a + 8a^2 = 28a\\2a^2 + 2a + 2 = 7a\\2a^2 - 5a + 2 = 0\\(2a-1)(a-2) = 0\\a = \frac{1}{2} \vee a = 2$

And this gives our answer directly.

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3 years ago

Identify the coefficient and exponent of these very large and very small numbers represented in scientific notation. Identify ho

Vinvika [58]

Answer:

$5,890,000=5.89\times 10^6$

Step-by-step explanation:

The given number is 5,890,000.

We need to express in scientific notation.

A number can be written in scientific notation as follows :

$N=a\times 10^b$

Where

a is a real number and b is an integer

$5,890,000=5.89\times 10^6$

Hence, a = 5.89 and b = 6.

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3 years ago

Mark borrowed $5,500 at 11.5% interest for 5 years what is his monthly payment

Firlakuza [10]

Marks monthly payment would be $1,226.50 monthly. If mark is borrowing $5,500 plus a 11.5% interest he be paying $1,226.50

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3 years ago

Read 2 more answers

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krok68 [10]

Answer:

h=3.14

Step-by-step explanation:

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2 years ago

Solve for m. 9m = 25 + 4m. I think the answer is m = 5, but I not sure.

Dafna1 [17]

You have to combine the like terms
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m =5

You are correct!

7 0

3 years ago