3 years ago

SUBTRACT: (6x3 - 7x2) - (- 7x4 + 7x3 + 8x2)

Mathematics

1 answer:

RSB [31]3 years ago

5 0

Answer:

-5

Step-by-step explanation:

“x” would be multiplication, right?

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Find the surface area of this rectangular prism. Be sure to include the correct unit in your answer.

Sav [38]

Answer:

126in

Step-by-step explanation:

6*5=30

5*3=15

6*3=18

30+15+18 = 63

63*2=126

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3 years ago

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armand deposited $389.42 in a savings account that earns 3.2% simple interest. what is armand’s account balance after 7 years?

butalik [34]

Okay so since we have $389.42 to start with, we will multiply that by 3.2% which gives us roughly $12.46. Knowing that he will get an additional $12.46 per year, we multiply 12.46 by 7, giving us $87.22. Now, we just add 87.22 to 389.42, which is 476.64. Therefore, Armand has $476.64 as his account after 7 years.

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How to solve this equation for the variable b a^2+b^2=c^2 ?

Nata [24]

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Lastly, square root both sides of the equation, and <u>your answer will be $b=\sqrt{(c+a)(c-a)}$ </u>

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3 years ago

Which expression gives the x-coordinate of the solution of the system?

aalyn [17]

To find the the expression that gives the value of $x$ we are going to proceed as follows:
$5x+3y=-18$ equation (1)
$2x-4y=-28$ equation (1)

Step 1. solve for $y$ in equation (2)
$2x-4y=-28$
$-4y=-28-2x$
$y= \frac{-28-2x}{-4}$
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Step 3. Replace equation (3) in equation (1) and solve for $x$
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$5x+3(7+ \frac{1}{2} x)=-18$
$5x+21+ \frac{3}{2} x=-18$
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$x= \frac{-39(2)}{(13)}$
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We can conclude that the expression that gives the value of $x$ is: $x=-6$

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3 years ago

I don't understand this question. The format with which we are supposed to answer is

GaryK [48]

The answer is Assume

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3 years ago