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2 years ago

Pls help is it a b or c will give brainliest btw

Mathematics

2 answers:

monitta2 years ago

8 0

Answer:

Step-by-step explanation:

because there was no mistake

Lelu [443]2 years ago

3 0

Answer:

The answer is C. Annie didn't make a mistake.

Step-by-step explanation:

To get k, we subtract 7.5 from both sides of the equation.

10 - 7.5 equals 2.5.

So, Annie is correct.

#teamtrees #WAP (Water And Plant)

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What does the x-intercept sometimes represent in a real world problem

UNO [17]

I think it represents where something is starting from, like something growing up (a chart with rising numbers)

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3 years ago

An open rectangular box with square base has a volume of 256 cubic inches. determine the equation for the volume and surface are

Serjik [45]

Let
b-----------> the length side of the square box
h------------> the height of the box
SA---------> surface area of the box

we know that
[volume of the box]=b²*h
volume=256 in³
b²*h=256-------> h=256/b²-----> equation 1

surface area of the box=area of the base+perimeter of base*height

area of the base=b²
perimeter of the base=4*b

surface area=b²+(4*b)*h------> SA=b²+4*b*h-----> equation 2

substitute equation 1 in equation 2
SA=b²+4*b*[256/b²]-----> SA=b²+1024/b-----> SA=(b³+1024)/b

the answer is

the formula of the volume of the box is V=b²*h-----> 256=b²*h

the formula of the surface area of the box are
SA=b²+4*b*h
SA=(b³+1024)/b

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3 years ago

Read 2 more answers

If Sin 3x= Cos (x-60), find the value of x

Kamila [148]

Answer:

x = 15

Step-by-step explanation:

Assuming 3x and x-60 are in degrees, you can use:

cos(a) = sin(a+90)

To rewrite the equation as:

sin(3x) = sin(x-60+90)

sin(3x) = sin(x+30)

3x = x+30

2x = 30

x = 15

But, solving 3x = x+30 which simplifies to x=15 is not the only solution to this equation, as you can see in below picture. Finding all solutions is a bit more work, but maybe that is not required in your case.

4 0

2 years ago

A cylinder can hold 450 inches of water. How many cubic inches of water can a cone that has a congruent base and equal height to

Paladinen [302]

Answer:

150 cubic inches of water

Step-by-step explanation:

volume of a cylinder = πr²h

Volume of a cone 1/3(πr²h)

π = 22/7

r = radius

volume of a cone = $\frac{1}{3}$ x Volume of a cylinder

450 / 3 = 150 in³

7 0

3 years ago