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2 years ago

Is each equation true or are some of them false?

2 answers:

8 0

1. False. y x y x y = y^3, not 3y, so it would equal y^3 - y.

2. False. Half of the original amount will never equal the original amount.

3. True. When you divide variables with exponents, you subtract the exponents. Therefore, v^3 / v^2 = v^3-2 = v

Hope this helps!

laila [671]2 years ago

7 0

1 is true 2 is false 3 is true

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Solve for x: <br> (125^2x)(5x) = 25^3

olga nikolaevna [1]

(125^2x)(5x) = 25^3
(15625x)(5x)=15625
<span>78125x=15625
</span>x=5

Hope I helped ;D

6 0

3 years ago

Slope intercept form of 3x+2y=7

Marianna [84]

Answer:

y = -1.5x + 3.5

Step-by-step explanation:

Slope intercept form is y=mx+b.

3x + 2y = 7

2y = -3x + 7

y = -1.5x + 3.5

3 0

2 years ago

Read 2 more answers

How do you use double number lines in equations?

VLD [36.1K]

Okay sorry but this question is actually a little simple if you think less

7 0

3 years ago

Given: 2x^2+ 32x + 16 = 0

Nataly [62]

Answer:

Step 3: x² + 6x + 64 = -8 + 64

Step-by-step explanation:

At step 3 add 64 on both sides to complete the square.

so x² + 6x = -8

becomes x² + 6x + 64 = -8 + 64 when 64 is added both sides giving us step 3.

continuing from there, we get

x² + 6x + 64 = 56

we then use a² + 2ab + b² = (a + b)² on the left side to get

(x + 8)² = 56 (solve the equation for x)

by taking the root on both sides

√(x + 8)² = √56

x + 8 = +- 2√14 (separate the equations

x + 8 = 2√14

x + 8 = -2√14

Solving for x

x = 2√14 - 8 or x = -2√14 - 8

3 0

3 years ago

there are 240 students who attend Elmwood school. Two thirds of the students have brown hair. how many students have brown hair?

GuDViN [60]

Answer:

160 has brown hair while

80 do not have brown hair

Step-by-step explanation:

two third means 2/3

therefore to find how many student have brown hair,

we say- 2/3 x 240 = 160

since we know that 160 students have brown hair, we just subtract it from 240

i.e 240 - 160 = 80

7 0

3 years ago