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3 years ago

Find the product. Simplify your answer. (m–4)(2m+2)

Mathematics

2 answers:

neonofarm [45]3 years ago

8 0

Answer:

2m²-6m-8

Step-by-step explanation:

(m-4)(2m+2)

= (m+-4)(2m+2)

= (m)(2m)+(m)(2)+(-4)(2m)+(-4)(2)

= 2m²+2m-8m-8

= 2m²-6m-8

Helga [31]3 years ago

3 0

2m^2-6m-8 is the correct answer (^2 is the exponent)

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A man standing on a lighthouse at a height of 124 feet sights two boats directly in front of him. One is at an angle of depressi

Ksivusya [100]

Answer:

$125\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

In the right triangle ABC find the length side BC

we know that

$tan(62\°)=\frac{124}{BC}$

$BC=\frac{124}{tan(62\°)}$

step 2

In the right triangle ABD find the length side BD

we know that

$tan(33\°)=\frac{124}{BD}$

$BD=\frac{124}{tan(33\°)}$

step 3

we know that

The distance between the two boats is the length side CD

$CD=BD-BC$

substitute the values

$CD=\frac{124}{tan(33\°)}-\frac{124}{tan(62\°)}=125\ ft$

5 0

3 years ago

What is equivalent to -2i(6-7i)

borishaifa [10]

Answer:

-14 - 12i

Step-by-step explanation:

Apply complex arithmetic rule: (ai)(b + ci) = -ac + abi

a = 2, b = 6, c = -7

-( -2(-7) + 2*6i )

-( 14 + 12i)

-14 - 12i

5 0

3 years ago

What’s the formula to find the shaded area?

trapecia [35]

shaded area = area of outer figure - area of inner figure........

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3 years ago

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Judy bought her tent on sale .The same price was $70 off the original price . Judy also used a coupon for an extra $15 off if Ju

Lena [83]

Answer:210

Step-by-step explanation:

175+70+15=210

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3 years ago

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sergey [27]

100 = 15.50p + 7
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3 years ago