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aksik [14]
3 years ago
9

ANSWER ALL THE QUESTIONS THEN YOU WILL BE BRAINLIEST!

Mathematics
2 answers:
garik1379 [7]3 years ago
7 0

Answer:

1. 20 - 2n

2. 14

3. 3

Step-by-step explanation:

2. 20 - 2n = 20 - 2(3)

                = 20 - 6

                = 14

3. If h=27, therefore,

h/9 = 27/9

h = 3

AVprozaik [17]3 years ago
3 0

Answer:

Step-by-step explanation:

1. The difference of means that we are looking at subtraction. Now, we can eliminate the 3rd option because that has addition. Now, let's find the numbers that are being subtracted. Let's call the number n. This means that twice a number is 2n, which eliminates the first option because it has n, not 2n. We know that 20 and 2n are being subtracted, but in which order? Since 20 was stated before 2n, we know that 20 comes first and 2n comes second. The only option that has this is the second one, 20-2n.

2. We use the expression obtained in the last question, 20-2n. Now, we plug in 3 for n, and when we do so, we get 20-2*3 = 20-6 = 14, the third option.

3. We know that h=27 and we want to find the value of h/9. To do this, we simply plug in 27 for h into h divided by 9, and we get 27/9 = 3, the second option. Hope this helps!

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Hey:) can you please help me posted picture of question
trasher [3.6K]
Answer:
32x² + 36x + 9

Explanation:
To answer the question, we will simply multiply each term from the first bracket by each term from the second bracket and then combine like terms to get the final expression.

This can be done as follows:
(8x + 3)(4x + 3)
8x(4x) + 8x(3) + 3(4x) + 3(3)
32x² + 24x + 12x + 9
32x² + 36x + 9

Hope this helps :)
7 0
3 years ago
Read 2 more answers
Find ST if S(-3, 10) and T(-2, 3)
iragen [17]

Answer:

ST=(6,30)

Step-by-step explanation:

8 0
2 years ago
Apply the distributive property to factor out the greatest common factor of 12+20
Lunna [17]

4(3+5) --> this means that 12/4=3 and 20/4=5 and 4 is the GCF

3 0
2 years ago
A triangular pyramid with a height of 9 inches has a volume of 63 cubic inches. If the height of the triangular base is 6 inches
Bond [772]

Option D: 21 in is the base length of the triangular base.

Explanation:

Given that a triangular pyramid with a height of 9 inches has a volume of 63 cubic inches.

The height of the triangular base is 6 inches.

We need to determine the base length of the triangular pyramid.

The base length of the triangular pyramid can be determined using the formula,

Volume =\frac{1}{3} \times Bh

Substituting Volume=63 and Height=9 in the above formula, we get,

63 =\frac{1}{3} \times B(9)

Simplifying the terms, we get,

63 =3B

Dividing both sides by 3, we have,

21=B

Thus, the base length of the triangular pyramid is 21 in

Hence, Option D is the correct answer.

3 0
3 years ago
Simplify 9 exponent 2
STatiana [176]

Answer:

81

Step-by-step explanation:

9^2 = 81 bc 9x9=81

3 0
3 years ago
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