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Travka [436]
3 years ago
7

What does 6(-2.1k - 2) + (7k + 5) equal​

Mathematics
1 answer:
ikadub [295]3 years ago
5 0

Answer:

Step-by-step explanation:

6(-2.1k-2)+(7k+5)

-12.6k-12+7k+5

-5.6k-7

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Greg's home is 1.8 miles from his school.
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Answer:

a. 0.9 miles

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c. 1.44 miles

Step-by-step explanation:

4 0
2 years ago
Find the discriminant of 3^2-10x=-2
STALIN [3.7K]

Answer:

3/11

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Help me please asap!!!!!!
meriva

Answer:

4a^2-19ab-5b^2

Step-by-step explanation:

What you do is the FOIL process.

F=First. The first thing that you do is times 4a and a together to get 4a^2.

O=Outer. You multiply the outer numbers 4a and -5b together to get -20ab.

I=Inner. You multiply the inner numbers b and a together to get ab.

L=Last. You multiply the last numbers b and -5b together to get -5b^2.

Put it all together to get 4a^2-19ab-5b^2 as your answer.

8 0
3 years ago
The temperature in a room is 60°F .A heater is turned on and the heater temperature rises up by 2°F every hour right in equation
olganol [36]

Answer:

y=2x+60

Step-by-step explanation:

Since the starting temperature is 60 degrees, that will be the y intercept. the temperature rises by 2 degrees every one hour, so the slope is 2. y=2x+60.

6 0
3 years ago
A company uses paper cups shaped like cones for its water cooler. Each cup has a height of 12 cm, and the base has a
Mama L [17]

Answer: 7693cm

Step-by-step explanation:

The volume of a cone is given as:

= 1/3πr²h

where π = 3.14

radius = 3.5cm

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= 1/3 × 3.14 × 3.5² × 12

= 153.86cm³

Therefore, the amount of water that is needed to fill 50 cups will be:

= 153.86 × 50

= 7693cm

3 0
2 years ago
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