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3 years ago

(simplify the expression) 2x7b

Mathematics

1 answer:

Lapatulllka [165]3 years ago

5 0

Answer:

14b

Step-by-step explanation:

2×7=14

Just put the "b" after 14

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Vikentia [17]

Answer:

It should be <u>35.4</u>

Step-by-step explanation

Because 35 degrees makes a right triangle

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3 years ago

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B can make a triangle

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Tony can type at a constant rate of 110 words every 2 minutes. A. Write an equation for the number of words, W, Tony can type in

Andreas93 [3]

Step-by-step explanation:

given Tony can type at a constant rate of 110 words every 2 minutes.This means tony can type 55 words in every minute.

A- Tony can type W words in T minutes. W*T=M (M=Minutes Tony typed)

B- Tony can type 1100 words in 20 minutes. as 55*20=1100.

C- Yes, Tony can type the essay. Why: because in this equation w=55 and t=30 minutes so t*w=30*55=1650 so yes, Tony can write the essay.

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3 years ago

Points A(7, -5), B(-1, -2), and C(-4, 6) form triangle ABC on a coordinate plane. According to its sides, triangle ABC is a(n) _

prohojiy [21]

Isosceles Triangle, has 2 equal sides and angles.

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3 years ago

Which are sums of perfect cubes? Check all that apply. 8x6 27 x9 1 81x3 16x6 x6 x3 27x9 x12 9x3 27x9.

Black_prince [1.1K]

The equations which are sums of perfect cubes are as follows;

$\rm 8x^6+27x^9+1$

$\rm x^6+x^3$

$\rm 27x^9+x^{12}$

<h3>Perfect cubes;</h3>

Perfect cubes are the numbers that are the triple product of the same number.

We have to determine

Which are sums of perfect cubes?

1. The given equation is $\rm 8x^6+27x^9+1$ .

The equation can be written as;

$\rm 8x^6+27x^9+1\\\\2^3(x^2)^3+3^3(x^3)^3+1^3$

All the terms in the expression are can be represented as perfect cubes.

2. The given equation is $\rm 81x^3+16x^6$ .

The equation can be written as;

$\rm 81x^3+16x^6\\\\9^2x^3+4^2(x^2)3$

In this, all the terms are not perfect cubes, some of them are squares.

3. The given equation is $\rm x^6+x^3$ .

The equation can be written as;

$\rm x^6+x^3\\\\(x^2)^3+x^3$

All the terms in the expression are perfect cubes.

4. The given equation is $\rm 27x^9+x^{12}$ .

The equation can be written as;

$\rm 27x^9+x^{12}\\\\3^3(x^3)^3+(x^4)^3$

All the terms in the expression are perfect cubes.

5. The given equation is $\rm 9x^3+27x^9$ .

The equation can be written as;

$\rm 9x^3+27x^9\\\\3^2x^3+3^3(x^3)^3$

In this, all the terms are not perfect cubes, some of them are squares too.

To know more about perfect cubes click the link given below.

brainly.com/question/4701925

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2 years ago

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