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3 years ago

-3-3 (2x+7)-4(6x+7)-10

Mathematics

1 answer:

AleksandrR [38]3 years ago

4 0

Answer:

=−30x−62

Step-by-step explanation:

Distribute:

=−3+(−3)(2x)+(−3)(7)+(−4)(6x)+(−4)(7)+−10

=−3+−6x+−21+−24x+−28+−10

Combine Like Terms:

=−3+−6x+−21+−24x+−28+−10

=(−6x+−24x)+(−3+−21+−28+−10)

=−30x+−62

Answer:

=−30x−62 i think :)

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Step-by-step explanation:

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3 years ago

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Triangle DEF (not shown) is similar to ABC shown, with angle B congruent to angle E and angle C congruent to angle F. The length

Bezzdna [24]

Answer:

Area of ΔDEF is $45\ cm^2$ .

Step-by-step explanation:

Given;

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Length of DE = $6\ cm$

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Solution,

Since, ΔABC and ΔDEF is similar and ∠B ≅ ∠E.

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3 years ago

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The equation of a circle whose center is at (1,2) and radius is 5 is (x + 1)² + (y + 2)² = 5 (x - 1)² + (y - 2)² = 25 (x - 1)² -

Oksana_A [137]

$\bf \textit{equation of a circle}\\\\ 
(x- h)^2+(y- k)^2= r^2
\qquad 
center~~(\stackrel{1}{ h},\stackrel{2}{ k})\qquad \qquad 
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I need help with this

wariber [46]

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3 years ago

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GarryVolchara [31]

In questions in which two fractions are being divided, take the reciprocal of the second fraction, and multiply them.

1/72 ÷ 1/3
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4 years ago