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2 years ago

What two numbers are added together and equal -8.

Mathematics

2 answers:

Snowcat [4.5K]2 years ago

7 0

-4 + -4 equals -8 or -5 + -3

Anastasy [175]2 years ago

4 0

Answer: You might need to be more descriptive, there's a lot of numbers that could be added together to equal -8.

-4 + -4 = -8.

-6 + -2 = -8.

etc.

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(2x + 3) •x • (4x + 1)

Virty [35]

Answer:

If your trying to simplify then your answer would be $8x^{3} + 14x^{2} +3x$

6 0

2 years ago

PLEASE HELP!

IrinaVladis [17]

Answer:

Step-by-step explanation:

<h3>Sphere:</h3>

1) a) r = 7 cm

$\sf \boxed{\text{Volume of sphere=$\dfrac{4}{3}\pi r^3$}}$

$\sf =\dfrac{4}{3}*3.14*7*7*7\\\\= 1436 \ cm^3$

$\sf \boxed{\text{\bf Surface area of sphere = $4\pi r^2$}}$

= 4*3.14 * 7 * 7

= 615.44 cm²

b) r= 8.4 cm

$Volume = \dfrac{4}{3}\pi r^3$

$\sf =\dfrac{4}{3}*\dfrac{22}{7}*8.4*8.4*8.4\\\\= 2483.7 \ cm^3$

Surface area = 4*3.14*8.4*8.4

= 887.04 cm²

<h3>Hemisphere:</h3>

a) r = 6 cm

$\sf \boxed{\text{\bf Volume of hemisphere =$\dfrac{2}{3} \pi r^3$}}$

$\sf =\dfrac{2}{3}*3.14*6*6*6\\\\= 452.16 \ cm^3$

$\sf \boxed{\text{\bf Surface area of hemisphere=3 \pi r^2}}$ $\sf \boxed{\text{\bf Surface area of hemisphere = $3 \pi r^2$}}$

= 3 * 3.14 * 6 * 6

= 339.12 cm²

3 0

2 years ago

Marshall charges $22.00 per hour to cut yards in his neighborhood. Use the ratio of Marshall’s hours worked to the amount earned

Leni [432]

If there are $22 made per hour for 7 hours, you’d add 22 per hour in your table. 1 hour=$22, 2 hours=$44, 3 hours=$66, and so forth. make a table of these numbers up to 7 hours.

4 0

2 years ago

Read 2 more answers

A cell phone company charges $20 for a customer to open a new account and $35 for each month of phone service.

lorasvet [3.4K]

Answer:

y=4/5 x-3

Step-by-step explanation:

6 0

2 years ago

Please math help and please show work!

Galina-37 [17]

Since they are similar triangles, they are just enlarged versions of each other. This means that the left-most angle of triangle XYZ is also 35°.

Angles in a triangle add up to 180°, so we can find the missing angle by subtracting the two known angles from 180.

180 - 70 - 35 = 75
The right-most angle of triangle XYZ would be 75°.

Hope this helps!

6 0

2 years ago