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4 years ago

GET 15 POINTS JUST ANSWER QUICK!!!

Mathematics

2 answers:

Mrac [35]4 years ago

6 0

Answer:

Step-by-step explanation:

if one batch of brownies is 2 cups of flour, then 10 batches of brownies would be 20 cups of flour

sleet_krkn [62]4 years ago

6 0

Answer:

f = 2.5b

Step-by-step explanation:

The graph shows a straight line that passes through the origin, so this is direct variation.

The standard equation for direct variation is

y = kx,

where k is the constant of variation.

In this case, we have

f = kb

We need to find the value of k.

Read one point on the graph that is easy to read since it falls on a grid intersection. For example, look at (2, 5). Each point is of the form (b, f), so for point (2, 5), b = 2, and f = 5.

Replace b with 2 and f with 5 and solve for k in the equation f = kb.

f = kb

5 = k * 2

2k = 5

k = 5/2 = 2.5

Now replace k with 2.5.

f = 2.5b

The equation is f = 2.5b

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What is the midpoint of coordinates (6, 1) and (9, -3)?

ZanzabumX [31]

Answer:

(7.5, -1)

Step-by-step explanation:

hope this helps you!

4 0

3 years ago

Maria want to make a footstool in the shape of a cylinder, as show below. She wants to fill the footstool with foam and cover it

noname [10]

Answer:

She'll need 8143 cubic inches of foam and 1,809.6 square inches of fabric.

Step-by-step explanation:

Assuming you want to know how much foam and fabric she will need...

First the foam... so we need to determine the volume of that footstool. The Volume of a cylinder is given by:

V = π * r² * h

So, we plug in the numbers:

V = π * 12² * 18 = π * 144 * 18

V = 2,592 π = 8143 cubic inches.

Now for the fabric... we'll assume Maria wants to cover the side of the stool and the top, but not the bottom.

The side of the stool is basically a rectangle of width of 18 inches and a length of the circumference of the base of the stool. The circumference is given by: C = 2 π * r of course, so C = 24π = 75.14 inches.

So the lateral surface of the cylinder is:

LS = 18 * 75.14 = 1,357.2 sq inches.

Then we need to calculate the area of the top... which is easy:

A = π * r² = π * 12² = 144 π = 452.4 sq inches

So, to cover the lateral side of the footstool and its top, she needs to use:

TA = 1,357.2 + 452.4 = 1,809.6 sq inches of fabric.

5 0

3 years ago

Read 2 more answers

Suppose that a random sample of 50 bottles of a particular brand of cough syrup is selected

baherus [9]

Wow collage seems so hard

6 0

3 years ago

What 42 rounded to the nearest ten

Savatey [412]

Answer:

Step-by-step explanation:

the tens value is the 2 value from the left of a decimal point.

Examples: 32 67.4 2345 904

In your case, the tens value is 4

We need to look at the ones value to see if we need to round up or down

Because the ones value, 2, is less than 5, we keep the tens value, so it's 40

4 0

4 years ago

What is the equation of the graph below?

sveta [45]

Answer:

y = csc(x - 3/4 $\pi$ )

Step-by-step explanation:

I forgot how to answer questions like these. I went ahead and tried re-learning this to answer this.

So, the first step is to recognize that this graph can only be the reciprocal function of sin or cosine. I will think of sine.

y = sin(x)

Look at where the x-coordinate of the sin is. (-3/4PI). This is going to be the c value. { y = asin(x-c) }

y = sin(x - 3/4 $\pi$ )

Now, what is the a value? or amplitude? Well, it's just 1.. and the simplest explanation is just to look at my picture.

Now, if we were to graph this, we would end up with the correct x and y values, but the shape is wrong, and the easiest way to fix this is to just take the recpriocal of the sine function.

y = csc(x - 3/4 $\pi$ )

Thank you for this question, I re-learned something I forgot back in pre-calc haha.

5 0

4 years ago