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2 years ago

8

What is the missing reason in the proof? Given: ∠ABC is a right angle, ∠DBC is a straight angle Prove: ∠ABC ≅ ∠ABD definition of

angle bisector segment addition property definition of congruent angles transitive property

1 answer:

Margarita [4]2 years ago

8 0

Answer:

the answer is definition of angle bisector

Step-by-step explanation:

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Given f(x) = x^2-3 and g(x)=x+2/x. Find (g°f)(4)

goblinko [34]

Answer:

15/13

Step-by-step explanation:

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3 years ago

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You are trapped in a dark cave with three indistinguishable exists on the walls. One of the exits takes you 3 hours to travel an

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Answer:

6 HOURS

Step-by-step explanation:

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3 years ago

uppose germination periods, in days, for grass seed are normally distributed and have a known population standard deviation of 2

natka813 [3]

Answer: 0.701

Step-by-step explanation:

Formula : $EBM =z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$ , where $\alpha=$ significance level , $\sigma =$ Population standard deviation, n= sample size.

As per given, n= 22

$\sigma = 2$

Critical z- value for 90% confidence level : $z_{\alpha/2}=1.645$

Then,

$EBM =(1.645)\dfrac{2}{\sqrt{22}}\\\\=(1.645)\dfrac{2}{4.690416}\\\\\approx0.701$

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2 years ago

X+(3x+2)+(1)/(2)x=29

Vladimir79 [104]

Answer:

$\boxed{x=6}$

Step-by-step explanation:

$x+3x+2+0.5x=29$

$\sf Combine \ like \ terms.$

$4.5x+2=29$

$\sf Subtract \ 2 \ from \ both \ sides.$

$4.5x+2-2=29-2$

$4.5x=27$

$\sf Divide \ both \ sides \ by \ 4.5.$

$\displaystyle \frac{4.5x}{4.5} =\frac{27}{4.5}$

$x=6$

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3 years ago

A person breaths 20 times per minute how many times do they breath in 25 minutes

Sever21 [200]

Answer:

500 times

Step-by-step explanation:

They breathe 20 times per minute for 25 minutes

20(times per minute) x 25(minutes) = 500

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2 years ago