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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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Pleaseee i need help

algol [13]

Answer:

Step-by-step explanation:

5 0

3 years ago

A gardener is planting two types of trees: Type A is 4 feet tall and grows at a rate of 24 inches per year. Type B is 5 feet tal

goldenfox [79]

It would take 5 yrs. for both trees to be the same height.

4 0

3 years ago

Brittany's car gets 31 miles per gallon. Brittany's car used 24 gallons of gas on a round trip to see the ocean. How far away fr

shutvik [7]

Answer:

372 miles

Step-by-step explanation:

The appropriate relation is ...

miles = (miles/gallon) × gallons

distance = (31 mi/gal)×(24 gal) = 744 mi

Brittany drove 744 miles to see the ocean. Since this was her round trip distance, the one-way distance is ...

744 mi/2 = 372 miles

5 0

3 years ago

Solve the equations for all values of x by completing the square x^2+62=-16x

lorasvet [3.4K]

Answer:

$x = \sqrt{2} - 8\\x = -\sqrt{2} - 8$

Step-by-step explanation:

To complete the square, we first have to get our equation into $ax^2 + bx = c$ form.

First we add 16x to both sides:

$x^2 + 16x + 62 = 0$

And now we subtract 62 from both sides.

$x^2 + 16x = -62$

We now have to add $(\frac{b}{2})^2$ to both sides of the equation. b is 16, so this value becomes $(16\div2)^2 = 8^2 = 64$ .

$x^2 + 16x + 64 = -62+64$

We can now write the left side of the equation as a perfect square. We know that x+8 will be the solution because $8\cdot8=64$ and $8+8=16$ .

$(x+8)^2 = -62 + 64$

We can now take the square root of both sides.

$x+8 = \sqrt{-62+64}\\\\ x+8 = \pm \sqrt{2}$

We can now isolate x on one side by subtracting 8 from both sides.

$x = \pm\sqrt{2} - 8$

So our solutions are

$x = \sqrt{2} - 8\\x = -\sqrt{2} - 8$

Hope this helped!

4 0

3 years ago

Chuck and Dana agree to meet in Chicago for the weekend.chuck travels 60 miles in the same time that Dana travels 52 miles. if c

Katarina [22]

Chuck travels at A) 30 mph

since chuck and dana travelled at the same amount of time (2 hours), dana travels at 26 mph, which is 4 mph less, and chuck travels at 30.

8 0

3 years ago