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4 years ago

Someone please help with this question I need an answer no longer than 5 minutes NO LINKS

Mathematics

1 answer:

devlian [24]4 years ago

3 0

Answer:

radius: 8.4 Area: 221.5

Step-by-step explanation:

16.8 divided by 2 = 8.4

The Formula for finding the area of circle= R₂ (radius squared: radius times itself) Multiplied by pi. pi = 3.14

8.4₂ multiplied by 3.14

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All 3 of these plz ??

LenaWriter [7]

Number 3 / last one is -49 hoped I helped you

6 0

3 years ago

When verifying that a function represented in another table is the inverse of the given cost function, which ordered pair can be

babunello [35]

Answer:

Option B is correct.

Step-by-step explanation:

To find the inverse of the function, the ordered pairs are inverted. i.e. x becomes y and y becomes x.

So, We are given in the table:

(20,52) ,(25,67.5), (30,84)

The inverse would be:

(52,20), (67.5,25),(84,30)

So, Option B is correct.

5 0

3 years ago

Read 2 more answers

Sharon is drawing up a plan for building a reduced Eiffel Tower on her backyard patio. She has room to make a base of 5 feet. He

BaLLatris [955]

Answer:

it is A

Step-by-step explanation

4 0

3 years ago

Read 2 more answers

Before we can make the mashed potatoes, we need to boil some water. The water starts out at room temperature, 70° F, and increas

Karolina [17]

Answer:

Part a) $y=50t+70$

Part b) $t=2.84\ min$

Step-by-step explanation:

Part a) Create a linear equation

Let

t ----> the time in minutes

y ---> the temperature in °F

we know that

The linear equation in slope intercept form is equal to

$y=mt+b$

where

m is the slope or unit rate of the linear equation

b is the y-intercept or initial value of the linear equation

In this problem we have

The slope m is equal to

$m=50\° F\ per\ minute$

The y-intercept is

$b=70\° F$

substitute

$y=50t+70$

Part b) How many minutes until the water boils at 212° F?

For y=212° F

substitute in the linear equation and solve for t

$212=50t+70$

$50t=212-70$

$50t=142$

$t=2.84\ min$

6 0

3 years ago

True of false a - b = a - (-b)

zmey [24]

Answer:

False

Step-by-step explanation:

a - (-b) would make it a + b

negative and negative equals positive

positive and positive equals positive

negative and positive equals negative

positive and negative equals negative

4 0

3 years ago