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3 years ago

(practice with radius) Find the area. 3.5m

Mathematics

1 answer:

aksik [14]3 years ago

8 0

Answer:

49/4pi

Step-by-step explanation:

Area of circle: pi(r)^2. You plug in r aka radius, which is 3.5mm. pi(3.5)^2 is 49/4pi, so around 48.4845 mm^2.

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2 years ago

Given f(x)=2x-3, find f(17).

Nadusha1986 [10]

substitute x=17 into the function

f(17) = 2*17-3

f(17) = 34-3

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4 years ago

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A pet border keeps a ratio of 1 dog for every 7 animals. If the border has room for 91 animals, how many of them can be dogs? (S

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13? Maybe I’m not sure

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3 years ago

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) What is the sum? 8+(-3) + (-8) =

uysha [10]

Answer:

-3

Step-by-step explanation:

simplifying, you get 8-3-8, then you get 0-3, then you get -3.

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3 years ago

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Sienna has 5 3/4 pounds of grapes. She eats 1/8 pound and gives 2 1/2 pounds to her brother. How many pounds of grapes does Sien

miskamm [114]

The pounds of grapes left with seinna is 3.125 or $\frac{25}{8}$ pounds

<h3>Solution:</h3>

Given that Sienna has $5\frac{3}{4}$ pounds of grapes

She eats $\frac{1}{8}$ pound and gives $2\frac{1}{2}$ pounds to her brother

To find: pounds of grapes left with seinna

We can find the pounds of grapes left with seinna by subtracting the pounds of grapes she ate and pounds of grapes she gave to brother from the total pounds of grapes she had

Pounds of grapes left with seinna = total pounds of grapes - pounds of grapes she ate - pounds of grapes she gave to brother

$\text {total pounds of grapes }=5 \frac{3}{4}=\frac{4 \times 5+3}{4}=\frac{23}{4}$

$\text {pounds of grapes she ate }=\frac{1}{8}$

$\text {pounds of grapes she gave to brother }=2 \frac{1}{2}=\frac{2 \times 2+1}{2}=\frac{5}{2}$

Substituting the values we get,

$\text {Pounds of grapes left with seinna }=\frac{23}{4}-\frac{1}{8}-\frac{5}{2}$

$\text { Pounds of grapes left with seinna }=5.75-0.125-2.5=3.125$

Thus the pounds of grapes left with seinna is 3.125 or $\frac{25}{8}$ pounds

5 0

3 years ago