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3 years ago

I need help finding A

Mathematics

1 answer:

ivann1987 [24]3 years ago

3 0

Answer:

a=23

Step-by-step explanation:

angle a, b,c and are congruent

3a-9+3a-9+3a-9=180

combine like terms

9a-27=180

add 27 on both sides

9a=209

divide by 9 on both sides

a=23

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100,000,000 is what percent of 100,000,000

goldfiish [28.3K]

Answer:

100% if that's not an answer choice it is 1 because it is whole

Step-by-step explanation:

100,000,000 ÷ 100,000,000 = 1 or 100%

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3 years ago

Find the indicated probability.

Ksju [112]

Answer:

$P(B) = 0.55$

Step-by-step explanation:

Given

$P(A\ or\ B) = 0.8$

$P(A) = 0.4$

$P(A\ and\ B) = 0.15$

Required

Find P(B)

In probability, we have:

$P(A\ or\ B) = P(A) + P(B) - P(A\ sd B)$

Substitute values

$0.8 = 0.4 + P(B) - 0.15$

Collect Like Terms

$P(B) = 0.8 - 0.4 + 0.15$

$P(B) = 0.55$

8 0

3 years ago

How much will you pay in all for the $78 lunch bill with a 15% tip ?

Sergeeva-Olga [200]

→ You will pay $ 89.7.

The tip value is based on the bill value. Hence, to find the total payment you have to multiply 78 by 1.15 (this includes the tip, 1.15).

$\Large \text {$Total = 78 \times 1.15 = 89.7 $}$

Or you can first find how many 15% is from $78:

$\Large \text {$0.15 \times 78 = 11.7$}$

And then add this to $78:

$\Large \text {$78 +11.7 = 89.7$}$

→ See more on:

brainly.com/question/12901165

8 0

3 years ago

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What is the square root of 34685

mr Goodwill [35]

Answer:

The result can be shown in multiple forms.

Exact Form:

√ 34685

Decimal Form (which is the square root):

186.239

Step-by-step explanation:

I hope this helps! Have a nice day!

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3 years ago

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If A=(0,0) and B=(6,3), what is the length of AB ?

motikmotik

D(AB) = √(6-0)^2 +(3-0)^2
d(AB) = √36+9
d(AB) = √45
d(AB) = 3√5
or
d(AB) = 6.71

hope it helps

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3 years ago

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