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zmey [24]
3 years ago
13

Need help quick! What is the sum of the following:

tle="15x (times) 20x" alt="15x (times) 20x" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Fantom [35]3 years ago
6 0

Answer:

300x

Step-by-step explanation:

alll you have to do is multipy 15 and 20 and you will get 300

after that just add the x to the end

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Two angles are complementary. The measure of ∠ABC is x° and the measure of ∠DBC is (3x + 10)°. What is the value of x?
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How can you construct perpendicular lines and prove theorems about perpendicular lines
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Answer:

See descriptions below.

Step-by-step explanation:

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3 years ago
Multiply the polynomials.<br> (4x- + 4x + 6)(7x + 5)
SashulF [63]

\implies {\blue {\boxed {\boxed {\purple {\sf {   \: 28 {x}^{3}  + 48 {x}^{2}  + 62x + 30}}}}}}

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}

(4 {x}^{2}  +  4x + 6)(7x + 5)

= \: 7x(4 {x}^{2}  + 4x + 6) + 5(4 {x}^{2}  + 4x + 6)

=  \: 28 {x}^{3}  + 28 {x}^{2}  + 42x + 20 {x}^{2}  + 20x + 30

Combining like terms, we have

=  \: 28 {x}^{3}  + (28 {x}^{2}  + 20 {x}^{2} ) + (42x + 20x) + 30

=  \: 28 {x}^{3}  + 48 {x}^{2}  + 62x + 30

\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}

3 0
3 years ago
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