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nikitadnepr [17]
3 years ago
11

What is the answer to (7*x+9)*x+90

Mathematics
1 answer:
Kaylis [27]3 years ago
5 0

Answer:

<h2>7x² + 9x + 90</h2>

Step-by-step explanation:

(7x + 9)x + 90               <em>use the distributive property </em><em>a(b + c) = ab + ac</em>

= (7x)(x) + (9)(x) + 90

=7x² + 9x + 90

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Answer:

ones place=3

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Step-by-step explanation:

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3 years ago
What number must be added to the expression below to complete the<br> square?<br> x² - 18x
kiruha [24]

Answer:

\boxed {\boxed {\sf 81}}

Step-by-step explanation:

The standard form of a quadratic is:

ax^2+bx+c

To complete the square, the a (leading coefficient) must be 1 and there can only be terms with variables on one side.

The expression given:

x^2-18x

follows these rules. Next, we divide the b (linear coefficient) by 2, then square it. Basically:

(\frac{b}{2})^2

The b in the expression is -18.

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3 years ago
-1.32+x=1 <br> -1 -1<br><br> Not sure about this??
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x=2.32

Step-by-step explanation:

-1.32+x=1

add 1.32 to both sides

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2 years ago
Please help me <br> Explain Step by step <br> Worth 15 points
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Write the exponential equation for this scenario. Georgiana invests $3000.00 in a CD. The CD earns 10% annual interest. How much
Dmitry_Shevchenko [17]

Answer:

The exponential equation is;

F = 30,000(1.01)^30

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Step-by-step explanation:

Here, we are to write an exponential equation

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with respect to the question;

F = ?

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2 years ago
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