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expeople1 [14]
3 years ago
5

(6) Find a and b as well as the ratio c:d in the figure below.

Mathematics
1 answer:
polet [3.4K]3 years ago
6 0

Answer:

i have a Similar question I’m stuck on, just remember z rule, vertically opposite etc.

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Will mark brainliest <br> Number 1 and 3
Keith_Richards [23]

Answer: Q1=20 Q2=39

Step-by-step explanation:

For question one all you have to do is multiply 20x35x8 giving you 5600. For question two just multiply 39x7x8 giving you 2184. Beat of luck.

8 0
3 years ago
The formula for the area of a circle is A = πr^2. Which equation shows the formula in terms of r?
Julli [10]
A=\pi r^2\\\\\pi r^2=A\ \ \  |\text{divide both sides by}\ \pi\\\\r^2=\dfrac{A}{\pi}\ \ \ \ |\text{square root both sides}\\\\r=\sqrt{\dfrac{A}{\pi}}
6 0
4 years ago
The article "High Cumulative Risk of Lung Cancer Death among Smokers and Nonsmokers" (P. Brennan, et al. American Journal of Epi
Dmitry [639]

Answer:

a)False: In a sample of 100 men who are heavy smokers, exactly 24 of them will contract lung cancer.

b)True: In a sample of 100 men who are heavy smokers, the number who will contract lung cancer is likely to be close to 24.

c)True: As more and more heavy-smoking men are sampled, the proportion who contract lung cancer will approach 0.24. Circle one: TRUE FALSE

7 0
3 years ago
What is the slope of the line shown in the graph?<br> A 3/2<br> B 2/3<br> C -3/4<br> D - 2/3
goldenfox [79]

Answer:

D. -2/3

Step-by-step explanation:

Since it is going down, it is negative

Think of this: Rise/Run

In this case, rise is when you are going up or down the graph

Run is when you are going to the right of the graph

Let's use 2 points (0,3) and (3,1)

Since you are going three points to the right we are going to put 3 in for run

You are going 2 places down, so we are going put -2 in for rise

This gives us -2/3

Another way to do this is (1-3)/(3-0) = -2/3

6 0
3 years ago
Sophie and Simon are peeling a pile of potatoes for lunch in the cafeteria. Sophie can peel all the potatoes by herself in 45 mi
natima [27]

Answer:

18 Minutes

Step-by-step explanation:

Simon and sophie each do a fraction of the job per minute like this:

-Simon does \frac{1}{30} per minute (if we multiply this by 30 we have the completed job)

-Sophie does \frac{1}{45} of the job per minute (again if we multiply this by 45 we have the completed job)

We will add this two to know how much of the job they do together in a minute:

\frac{1}{30}+\frac{1}{45}=\frac{1}{18}

They will do \frac{1}{18} of the job per minute.

So the total time will be when they do \frac{18}{18}=1, we can put this in one equation like this:

\frac{1}{18}x=1

where x is the total times we need to do\frac{1}{18} of the job to complete it. We solve for x:

x=18minutes

5 0
3 years ago
Read 2 more answers
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