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3 years ago

2 QUESTIONS 20 POINTS AND BRAINIEST IF YOU GET THEM CORRECT! THANK YOU! <3

Mathematics

2 answers:

kenny6666 [7]3 years ago

8 0

For Question 4, you first need to find how many patients went to buy contacts and how many patients went to buy glasses.

According to the graph, the number of people who bough contacts was 11 (between 10 and 12), and the number of people who bought glasses was 4.

Subtract these numbers: 11 - 4 = 7 patients, or choice (B).

For Question 2, look at the data. The lowest is 228 and the highest is 385. You would want a range that fits this best, and the range 200 to 400 would be best without cramming and without too much empty space.

The answer is (D).

kari74 [83]3 years ago

7 0

The answer to the first question is 7

Second one is 200-400

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PLEASE HELP ME ASAP!!!!

antoniya [11.8K]

Answer:

Step-by-step explanation:

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3 years ago

Solve for x: −4|x + 5| = −16

Lana71 [14]

Answer:

Step-by-step explanation:

x 1= -9, x 2 = -1. so the third one

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3 years ago

If the gradient of a hill is 5%, what is the corresponding slope of the hill?

erastovalidia [21]

5% = 5/100 = 1/20

1/20

5 0

3 years ago

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Find the missing measure for a right circular cone given the following information. Find V if r = 2 and L.A. = 12. (16/3)√2 16√2

aksik [14]

Volume of cone is given by formula

$V = \frac{\pi r^{2}h}{3}$ -------------------------------------------(1)

We are already given r =2, so we need to find h and then we can find volume

So missing meausre is height here ------------------------------------------------------------------------------

To find h we will use lateral area = $12\pi$ given

Formula for lateral area of cone is $\pi r\sqrt{r^{2}+ h^{2}}$

so we have $12 = \pi r\sqrt{r^{2}+ h^{2}}$

Now plug r as 2 in this equation

$12 \pi = \pi (2)\sqrt{2^{2}+ h^{2}}$

Now solve for h as shown and get h by itself

$\frac{12\pi}{2\pi} = \frac{2\pi\sqrt{4+h^{2}}}{2 \pi}$

$6 = \sqrt{4+h^{2}}$

$6^{2} = \sqrt{4+h^{2}} ^{2}$

$36} = 4+h^{2}$ $36 - 4 = 4+h^{2} -4$

$32 = h^{2}$ $\sqrt{32} = \sqrt{h^{2}}$

$\sqrt{16 \times 2} = h$ $\sqrt{16} \times \sqrt{2} = h$

$4\sqrt{2} = h$ ----------------------------------------------------(2)

Now plug 2 in r place and $4\sqrt{2}$ in h place in volume formula given in (1)

$V = \frac{\pi r^{2}h}{3}$

$V = \frac{\pi (2)^{2}4\sqrt{2}}{3} [/tex][tex] V = \frac{\pi (4)4\sqrt{2}}{3}$

$V = \frac{16 \pi \sqrt{2}}{3}$

so choice (1) is right answer

$(1) \frac{16 \sqrt{2}\pi}{3}$

correct answer --------------------------------------------------------------------------------------------------

$(2) 16 \sqrt{2} \pi$

incorrect answer as correct volume answer we got as $\frac{16 \sqrt{2}\pi}{3}$ --------------------------------------------------------------------------------------------------

$(3) 4 \sqrt{38} \pi$

incorrect answer as correct volume answer we got as $\frac{16 \sqrt{2}\pi}{3}$ --------------------------------------------------------------------------------------------------------

6 0

3 years ago

Read 2 more answers

The table shows conversions of common units of capacity.

notsponge [240]

9514 1404 393

Answer:

285 centiliters

Step-by-step explanation:

Using the given conversion factor:

1 quart = 0.95 L = 95 cL

3 quarts = 3 × 95 cL = 285 cL

There are approximately 285 centiliters in 3 quarts.

Centi- is a prefix meaning 1/100th. So, 0.95 L (95 hundredths) is 95 cL.

4 0

2 years ago

Read 2 more answers