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4 years ago

Please answer correctly !!!!!!! Will mark brainliest !!!!!!!!!!!!

Mathematics

1 answer:

Solnce55 [7]4 years ago

4 0

Answer:

f⁻¹(-2)=3

f⁻¹(1)=0

Step-by-step explanation:

inverse function flips x any coordinate into y and x

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A cylinder has a base radius of 8 cm and a height of 7 m. What is its volume in cubic centimeters to the nearest 10th Place

gayaneshka [121]

Answer:

1407.4

Step-by-step explanation:

volume = π · r^2 · h

you plug in the values and get => 1,407.434

Rounded to the nearest tenth = 1407.4

Hope this Helps!

Please mark as brainiest if correct (o_o)

7 0

3 years ago

Brian and Steve want to compare the prices of their favorite cereals to determine which is less expensive. Figure out the price

Andrews [41]

Me being a junior in high school and not knowing middle school math

8 0

3 years ago

Read 2 more answers

If f(7)=22, then f^-1(f(7))=? Please help!!

alexira [117]

Answer:

Step-by-step explanation:

In general, the point of an inverse function is to show you the value that gives a particular function value. That is, ...

$f^{-1}(22)=7\\\\f^{-1}(f(x))=x\\\\f^{-1}(f(7))=7$

7 0

3 years ago

HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!!!!!!

ziro4ka [17]

Answer:

80 tons
$20,000

Step-by-step explanation:

21. 1st scenario

B = fy + wz
100,000 = 15,000*4 + 500w
500w = 100,000 - 60,000
500w = 40,000
w = 40,000/500
w = 80

80 tons of wheat

22. 2nd scenario

B = fy + wz
50,000 = 2y + 200*50
50,000 = 2y + 10,000
2y = 50,000 - 10,000
2y = 40,000
y = 20,000

Fighter plane's price is $20,000

8 0

4 years ago

PLEASE HELP!!!

never [62]

Answer:

Lee has more pizza

Lee has 2.24 in^2 more than John

Step-by-step explanation:

step 1

Find the area of each slice of pizza

$A=\frac{1}{8}\pi r^{2}$

we have

$r=16/2=8\ in$ ----> the radius is half the diameter

substitute

$A=\frac{1}{8}\pi 8^{2}$

$A=8\pi\ in^{2}$

step 2

Find the area of John's part (area of shaded triangle)

The measure of the central angle of each slice of pizza is equal to

$360\°/8=45\°$

the height of triangle is equal to the base

Let

x ---->the base of the shaded triangle

$cos(45\°)=\frac{x}{r}$

$cos(45\°)=\frac{x}{8}$

Remember that

$cos(45\°)=\frac{\sqrt{2}}{2}$

substitute

$\frac{\sqrt{2}}{2}=\frac{x}{8}$

solve for x

$x=4\sqrt{2}\ in$

Find the area of shaded triangle

$A=(1/2)(4\sqrt{2})(4\sqrt{2})=16\ in^2$

step 3

Find the area of Lee's part

The area of Lee's part is equal to the area of two slices of pizza minus the area of two triangles

$2(8\pi)-2(16)=(16\pi-32)\ in^2$

assume

$\pi =3.14$

$(16(3.14)-32)=18.24\ in^2$

Lee's part is greater than John part's

Find the difference

$18.24-16=2.24\ in^2$

therefore

Lee has more pizza

Lee has 2.24 in^2 more than John

6 0

3 years ago