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3 years ago

Which of the following is a factor of 6x? + 2x - 21? (1 point)

Mathematics

1 answer:

Leviafan [203]3 years ago

3 0

Answer:

(3x+3)^2

hope you get help from me

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Evaluate 2x2+y23 for x = 1.5 and y = 3. Show all of your work.

Lera25 [3.4K]

Answer:

73.5

Step-by-step explanation:

I assume you are trying to find 4x+23y. To do this, let's plug in 1.5 for x and 3 for y. When we do so, we get 4*1.5 + 23*3 = 6 + 69 = 75. Hope this helps!

6 0

3 years ago

I need help on these two problems

sattari [20]

50. since n_1/4<1 the equation is not true. it has no solution.
48. same thing since 45 <= z the equation is not true.

6 0

4 years ago

When you square each side of an equation, is the resulting equation equivalent to the original?

Marina CMI [18]

It is not equivalent to the original

4 0

3 years ago

Car A travels 20 mph faster than Car B. In the same time that Car A travels 252 miles, Car B travels 196 miles. Find their speed

RoseWind [281]

<u>Answer:</u>

A = 70

B = 90

<u>Step-by-step explanation:</u>

We know that Car A travels 20 mph faster than Car B.

Assuming the speed of Car B to be x and the speed of Car A to be x+20, we can write:

$\frac{196}{x} =\frac{252}{x+20}$

Taking the reciprocal of both sides to make x the subject:

$196(x+20)=252x$

$196x+3920=252x$

$252x-196x=3920$

$56x=3920$

$x=70$ ---> speed of Car A

Finding the speed of Car B: $x+20 = 70+20=90$

Therefore, the speed of Car A = 70 and the speed of Car B = 90.

8 0

3 years ago

What is the complex conjugate?

dezoksy [38]

Answer: each of two complex numbers having their real parts identical and their imaginary parts of equal magnitude but opposite sign.

Step-by-step explanation:

6 0

3 years ago

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