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3 years ago

Please help ♥ 10 points and brainliest to first and best answer ;)

Mathematics

2 answers:

hram777 [196]3 years ago

7 0

Answer:

the answer is i think is 60.7

Andreyy893 years ago

3 0

Answer:

X = 8

Step-by-step explanation:

Find he scale factor - in this case it's 9/72+9 = 1/9

Then apply that to the other side - 56*1/9=4

This means 3x-20=4

3x=24

x is 8

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Determine whether each expression can be used to find the length of side AB. Match Yes or No for each

tankabanditka [31]

Answer:

$(a)\ AB = \frac{7}{\sin (B)}$ $\to Yes$

$(b)\ AB = \frac{24}{\cos (B)}$ $\to Yes$

$(c)\ AB = \frac{24}{\cos (A)}$ $\to No$

$(d)\ AB = \frac{7}{\cos (A)}$ $\to Yes$

Step-by-step explanation:

Given

$BC =24$

$AC = 7$

Required

Select Yes or No for the given options

$(a)\ AB = \frac{7}{\sin (B)}$ $\to Yes$

Considering the sine of angle B, we have:

$\sin(B) = \frac{Opposite}{Hypotenuse}$

$\sin(B) = \frac{7}{AB}$

Make AB, the subject

$AB = \frac{7}{\sin(B)}$

$(b)\ AB = \frac{24}{\cos (B)}$ $\to Yes$

Considering the cosine of angle B, we have:

$\cos(B) = \frac{Adjacent}{Hypotenuse}$

$\cos(B) = \frac{24}{AB}$

Make AB the subject

$AB = \frac{24}{\cos(B)}$

$(c)\ AB = \frac{24}{\cos (A)}$ $\to No$

Considering the cosine of angle B, we have:

$\cos(A) = \frac{Adjacent}{Hypotenuse}$

$\cos(A) = \frac{7}{AB}$

Make AB the subject

$AB = \frac{7}{\cos(A)}$

$(d)\ AB = \frac{7}{\cos (A)}$ $\to Yes$

<em>This has been shown in (c) above</em>

3 0

3 years ago

What is always true about a like that slants downward from left to right

Norma-Jean [14]

Answer:

the slope of the line is negative

Step-by-step explanation:

3 0

3 years ago

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A line that forms and 90° angle with the original line is:

Nikolay [14]

Answer:

a right angle

Step-by-step explanation:

4 0

3 years ago

Please help me with this question. Please!

erica [24]

150=i^2
150^.5=12.2474
11^2=121
12^2=144
13^2=169
between 12 and 13, D

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3 years ago

Andy's Rental Car charged an initial fee if $20 plus an additional $30 per day to rent a car. Buddy's Rental Car charges an init

steposvetlana [31]

Andy's rental car 20+30n
Buddy's rental car 36+28n
20+30n=36+28n
2n=16
n=8
cost for 8 days is 20+30*8=260
Cost will be the same for both companies for 8 days. Cost is $260

4 0

3 years ago

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