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3 years ago

What is the gradient of the graph shown? Give your answer in its simplest form.

Mathematics

1 answer:

skad [1K]3 years ago

5 0

Step-by-step explanation:

I'm here currently answering!

-3 :)

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The perimeter of a semicircle is 46.26 meters. What is the semicircle's diameter?

barxatty [35]

Answer:

diameter = 18 m

Step-by-step explanation:

46.26 = 1/2π(diameter) + diameter

46.26 = 1.57d + d = 2.57d

d = 46.26/2.57 = 18 m

8 0

3 years ago

50 points question!!!

Annette [7]

Answer:

The graph of f(x) has exactly two x-intercepts not true.

A straight line cannot intersect the x axis twice, so a graph should never have two x-intercepts.

Hope this helps!

8 0

3 years ago

Read 2 more answers

PLEASEEEEEE HELP ME WITH THIS PLEASE

Maksim231197 [3]

Question 1

$r(q(-2))=r(3)=11$

Question 2

$q(r(-2))=q(6)=-13$

8 0

2 years ago

A researcher wishes to estimate the proportion of X-ray machines that malfunction. A random 275 sample of machines is taken, and

Dominik [7]

Answer:

Following are the solution to the given question:

Step-by-step explanation:

$95\%$ Confidence Interval for both the percentage of all x-ray machines

p = the machinery's share is not working:

$= \frac{228}{275}\\\\ = 0.829$

$\text{Margin of Error} = Z_{(\frac{\alpha}{2})} \times \sqrt{( p \times (1-p)}{n})$

$= 1.96 \times \sqrt{(0.829 \times \frac{0.171}{275})} \\\\= 1.96 \times 0.023 \\\\= 0.045$

Lower $95\%$ Confidence interval = p - error margin $= 0.829 - 0.045 = 0.784$

Upper $95\%$ Confidence Interval = p + error margin $= 0.829 + 0.045 = 0.874$

So, $95\%$ Confidence Interval $= ( 0.78 , 0.87 )$

4 0

2 years ago

Mr. Johnston spends 2/3 of every year in Florida how many months does he spend in Florida each year

musickatia [10]

Answer:

8 months

Step-by-step explanation:

12/3 = 4, 1/3 is 4 so 1/3 + 1/3 = 2/3 or 8

6 0

2 years ago