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3 years ago

12

A) name an acute angle

1 answer:

Softa [21]3 years ago

8 0

An acute angle is less than 90°, so for example you can choose angles A-F-B, C-F-D or E-F-D.

An obtuse angle is more than 90, so we can choose angle A-F-C for example: is it the sum of A-F-B (acute) and B-F-C (right), so the result is surely more than 90.

A right angle is an angle of 90°, which is B-F-C, because it is labeled as such

A straight angle is an angle of 180°, and AFE seems to be so, because A-F and F-E are two rays starting from the same point (F), and going opposite directions.

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Point slope line equation of the line through (8,-8) and (9,8)

Gnom [1K]

Answer:

y+8=16(x-8)

Step-by-step explanation:

y-y1=m(x-x1) is the formula

Just substitute from the first pair then you should get the answer.

5 0

3 years ago

vazorg [7]

Answer:

See Explanation

Step-by-step explanation:

The question has unclear information.

So, I'll answer from scratch

Given

ABC = Right angled triangle

DB bisects ABC

Required

Prove that CBD = 45

From the question, we have that:

ABC is right angled at B

So, when DB bisects ABC, it means that DB divides ABC into two equal angles.

i.e.

$CBD = ABD$

and

$CBD + ABD = 90$

Substitute CBD for ABD in $CBD + ABD = 90$

$CBD + CBD = 90$

$2CBD = 90$

Divide both sides by 2

$\frac{2CBD}{2} = \frac{90}{2}$

$CBD = \frac{90}{2}$

$CBD = 45$

Hence, it is proved that $CBD = 45$

<em>Follow the above explanation and use it to answer your question properly</em>

6 0

3 years ago

Leroy took a trip to Alaska. His airfare was $243 and he spent $72 each day while

Aleks04 [339]

Answer:

Total cost of the trip = 243 + 72x

Step-by-step explanation:

Cost of airfare = $243

Amount spent per day = $72

Which expression can he use to help him find the cost of the trip?

Let

x = number of days spent in Alaska

Total cost of the trip = Cost of airfare + (Amount spent per day * number of days spent in Alaska)

= 243 + (72 * x)

= 243 + 72x

Total cost of the trip = 243 + 72x

If he spent 4 days on the trip

Total cost of the trip = 243 + 72x

= 243 + 72(4)

= 243 + 288

= $531

4 0

2 years ago

What is the expression here.. I found the answer but i dont know the expression!! SOMEONE PLEASE HELP!!

iogann1982 [59]

Idk if this helped you

5 0

3 years ago

2x-y=7<br> 3x+y=8 what is the answer to this problem

kakasveta [241]

Answer:

x is equal to 3 and y is equal to mines1

Step-by-step explanation:

add both together and you will get

$5x = 15$

and then it is easy to solve

3 0

3 years ago