2 years ago

Select all expressions that are equivalent to 6x+1−(3x−1). A. 6x+(-3x)+1+1 B. 3x+2 C. 6x−3x+1−1 D. 6x+1−3x−1 E. 6x+1+(-3x)−(-1)

Mathematics

1 answer:

Sunny_sXe [5.5K]2 years ago

4 0

Answer:

B. 3x+2

Step-by-step explanation:

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A helicopter flying at an altitude of 600 ft dropped a package to a lifeboat. Use the formula t= - to find how many

Andre45 [30]

Answer:

6.1 seconds

Step-by-step explanation:

The correct question is

A helicopter flying at an altitude of 600 ft dropped a package to a lifeboat. Use the formula t= √h/4 to find how many seconds it takes for the package to reach the lifeboat. Round your answer to the nearest tenth of a second

we have

$t= \frac{\sqrt{h}}{4}$

substitute the value of h in the formula

$h=600\ ft$

$t= \frac{\sqrt{600}}{4}=6.1\ sec$

8 0

3 years ago

(x^2y^3) = (xy^a)^b

Rainbow [258]

Answer:

C. $\frac{3}{2}$

Step-by-step explanation:

To find the value f b, we need to compare the exponents.

The given exponential equation is:

$( {x}^{2} {y}^{3} )^{3} = ( {x} {y}^{a} )^{b}$

Recall and apply the following rule of exponents.

$( {x}^{m} )^{n} = {x}^{mn}$

We apply this rule on both sides to get:

${x}^{2 \times 3} {y}^{3 \times 3} = {x}^{b} {y}^{ab}$

Simplify the exponents on the left.

${x}^{6} {y}^{9} = {x}^{b} {y}^{ab}$

Comparing exponents of the same variables on both sides,

$b = 6 \: and \:\: ab = 9$

$\implies \: 6b = 9$

Divide both sides by 6.

$b = \frac{9}{6}$

$b = \frac{3}{2}$

4 0

2 years ago

What is the product of 2/12 and 1/14? If you get it correct ill mark ya brainly.

Whitepunk [10]

Answer:

1/84

Step-by-step explanation:

6 0

2 years ago

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Given F ( x ) = -2/3 x - 4 What is the zero of this function?

sineoko [7]

Answer:

-4

Step-by-step explanation:

f(0)=(-2/3)(0) - 4

= - 4

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2 years ago

Translate the sentence into an inequality. The sum of 4 and y is less than 15.

bulgar [2K]

I believe the answer would be: 4+y<15

5 0

2 years ago