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sdas [7]
3 years ago
9

Multiply.

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
5 0

Answer:

D) 2x² + 4x - 30

Step-by-step explanation:

Follow the FOIL method:

FOIL =

First

Outside

Inside

Last

...and is the order you multiply to solve:

(x + 5)(2x - 6) =

(x)(2x) = 2x²

(x)(-6) = -6x

(5)(2x) = 10x

(5)(-6) = -30

Combine like terms. Simplify:

2x² -6x + 10x - 30 = 2x² (-6x + 10x) - 30 = 2x² + 4x - 30

2x² + 4x - 30 is your answer.

~

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5.
stellarik [79]

Answer:

c.

Step-by-step explanation:

Move the constant to the right side and the sign

0.5x=26-6

Calculate

0.5x=26-6=20 >>> 0.5x=20

divide both sides of by the equation 0.5

0.5x=20 >>> x=40

4 0
3 years ago
Create the equation of a line that is perpendicular to 2y=14+(2/3) x and passes through the point (-2,8).
anzhelika [568]

Answer:

  y = -3x +2

Step-by-step explanation:

If you divide the equation for the given line by 2, it will be in slope-intercept form:

  y = (1/3)x +7

This tells you its slope is 1/3. The slope of the perpendicular line is the negative reciprocal of this: -1/(1/3) = -3. The point-slope form of the equation for the perpendicular line can be written as ...

  y = m(x -h) +k . . . . . line with slope m through point (h, k)

Your line is ...

  y = -3(x -(-2)) +8

  y = -3x +2

6 0
3 years ago
Find b: If a = 9 and c = 15<br> С<br> a<br> b
pogonyaev

Answer:

b=12

Step-by-step explanation:

a^2+b^2=c^2

(9×9) + b^2= 15×15

81+ b^2= 225

-81. -81

b^2=144

√. √

b= 12

3 0
3 years ago
Read 2 more answers
if your answer is "No," how much more lacquer does she need? if your answer is "yes," how much lacquer will she have left over?
babunello [35]

my answer is no ,yes ,no

So ,maybe u find the answer

Step-by-step explanation:

if your answer is "No," how much more lacquer does she need? if your answer is "yes," how much lacquer will she have left over?AND if it is also no ,yes , no...show your work to justify your answer.

3 0
3 years ago
Kelsey has a little baby brother he weighs 8 pounds in 3 ounces the doctor said the baby should get about 5 ounces per week at t
Virty [35]

Answer:

11.9375 and just round it

Step-by-step explanation:

multiply 8 pounds to 16 to get ounces and then add three and 60(5 x 12) and then add all of it together and then divide it to 16 to get 11.94 pounds or however you want to round it. If you need more a more deeper explanation just ask.

4 0
3 years ago
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