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Pachacha [2.7K]
3 years ago
6

HURRY HELP 18 POINTS

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

C. She did not follow order of operations.

Step-by-step explanation:

Order of operations says you always have to multiply before you add when solving an equation, unless there are parentheses. Meaning that she should have multiplied -9 and 2/5 first before adding -18, instead of adding -9 and -18 first.

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Can some help me with this .
PtichkaEL [24]

Answer:

1. 169π ft²

2. 144π in²

3) 25π yd²

Step-by-step explanation:

1) π * 13²

π * 169

units = ft²

169π ft²

2) π * 12²

π * 144

units = in²

144π in²

3)π * 5²

π * 25

units = yd²

25π yd²

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0
2 years ago
A triangular prism has an equilateral base with each side of the triangle measuring 8.4 centimeters. The height of the prism is
BartSMP [9]

Answer:

it should be D

Step-by-step explanation:

6 0
3 years ago
The domain of ​(f​g)(x) consists of the numbers x that are in the domains of both f and g.
Dovator [93]

The statement "The domain of (fg)(x) consists of the numbers x that are in the domains of both f and g" is FALSE.

Domain is the values of x in the function represented by y=f(x), for which y exists.

THe given statement is "The domain of (fg)(x) consists of the numbers x that are in the domains of both f and g".

Now we assume the g(x)=x+2 and f(x)=\frac{1}{x-6}

So here since g(x) is a polynomial function so it exists for all real x.

f(x)=\frac{1}{x-6}<em>  </em>does not exists when x=6, so the domain of f(x) is given by all real x except 6.

Now,

(fg)(x)=f(g(x))=f(x+2)=\frac{1}{(x+2)-6}=\frac{1}{x-4}

So now (fg)(x) does not exists when x=4, the domain of (fg)(x) consists of all real value of x except 4.

But domain of both f(x) and g(x) consists of the value x=4.

Hence the statement is not TRUE universarily.

Thus the given statement about the composition of function is FALSE.

Learn more about Domain here -

brainly.com/question/2264373

#SPJ10

3 0
1 year ago
What is the length of a rectangle with an area of 8 1/10 square feet and a width of 2 1/4 feet?
Leviafan [203]

Answer:

3 6/10 square feet

Step-by-step explanation:

The area of the rectangle is 8 1/10

The width of the rectangle is 2 1/4

We are required to find the length

Area= length × width

Length= Area/width

= 81/10 / 9/4

= 81/10 × 4/9

= 36/10

= 3 6/10

Hence the length of the rectangle is 3 6/10 square feet

6 0
3 years ago
Express 400cm as a decimal of 4km
postnew [5]

400cm = 0.004km.

Perhaps there is something else your question meant, but it is way to unspecific.

6 0
2 years ago
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