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3 years ago

Factor the expression. 2x + 8

Mathematics

1 answer:

IgorC [24]3 years ago

5 0

Answer:

2x+8

2 is common

2(x+4)=0

Step-by-step explanation:

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Find the m2.

Lisa [10]

9514 1404 393

Answer:

d. m∠Q = 75 degrees

Step-by-step explanation:

The sum of the angles in a triangle is 180°. This triangle is marked to show it is an isosceles triangle, so the two base angles have the same measure.

∠P +∠Q +∠R = 180°

x° +(2x +15)° +(2x +15)° = 180°

5x = 150 . . . . . . . . . . . . . . . . . . . divide by °, subtract 30

x = 30 . . . . . . . . . . . . . . . . divide by 5

m∠Q = (2x +15)° = (2(30) +15)°

m∠Q = 75°

8 0

3 years ago

A person standing cloes to the edge on the top of a 200-foot building throws a baseball vertically upward. The quadratic functio

RoseWind [281]

Answer:

See below in bold.

Step-by-step explanation:

A). s(t)= -16t^2+64t+200

Converting to vertex form.

s(t) = -16 (t^2 - 4t) + 200

s(t) = -16 [(t - 2)^2 - 4] + 200

s(t) = -16(t - 2)^2 + 64 + 200

s(t) = -16(t - 2)^2 + 264

The maximum height is after 2 seconds and it is 264 feet.

B) The ball hits the ground when s(t) = 0 so we have:

-16t^2+64t+200 = 0

x [-64 +/- sqrt (64^2 - 4*-16*200) ] / -32

x = 6.06, -2.06

So the answer is 6.06 seconds.

6 0

3 years ago

The scale on a map is 1 :50000.

mestny [16]

Answer:

The actual area of the field in square kilometers is $30000000 km^2$

Step-by-step explanation:

Scale : 1 cm = 50000 km

Area of field on map = $1.2 cm^2$

Now , 1 cm = 5000 km

$1 cm^2 = (5000 km)^2$

We are supposed to find the actual area of the field in square kilometers.

So, the actual area of the field in sq. km = $1.2 \times (5000)^2$

Actual area of the field in sq. km $=30000000 km^2$

Hence the actual area of the field in square kilometers is $30000000 km^2$

6 0

3 years ago

What number should be placed in the box to help complete the division calculation?

nalin [4]

Answer:

780

Step-by-step explanation:

17 is the divisor, while 2635 is the dividend. So that,

$\frac{2635}{17}$ = 155

The quotient = 155 = 1 hundreds, 5 tens and 5 units

Also,

2635 - 1700 = 935

Hence, let the unknown value be represented by x. Then;

935 - x

The answer of the subtraction should be equal to the quotient of the division.

935 - x = 155

935 - 155 = x

780 = x

Therefore the unknown value represented by a box is 780.

7 0

4 years ago

Read 2 more answers

Mrs. terrance has a large bin of 236 crayons. She divides them equally among four containers.

leva [86]

236 / 4=59 hoped this helped

6 0

2 years ago