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Vaselesa [24]
4 years ago
7

Please help me i dont know how to do any of this

Mathematics
1 answer:
Valentin [98]4 years ago
3 0
I think its... A (but not sure)
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-7 (3e-2f+4)+6e-2 can you please help me solve this?
Serjik [45]
-7(3e-2f+4)+6e-2 
(distribute the -7) 
-21e+14f-28+6e-2 
(combine and like terms)
answer = -15e+14f-30 
8 0
3 years ago
Quinn is determining the area of a trapezoid. His work is shown below.
SOVA2 [1]

Answer:

A = a + b / 2 x h

Step-by-step explanation:

Area is equal to side one plus side two divided by two then you multiply by the height of the trapezoid. Hope this helps!

8 0
3 years ago
Read 2 more answers
Which of the following is the solution to the compound inequality below?
sweet-ann [11.9K]

Answer:

Option D.

x\geq -2  or  x\leq -6

Step-by-step explanation:

<u><em>The correct question in the attached figure</em></u>

we have

3x+5\geq -1 ----> inequality A

subtract 5 both sides

3x\geq -1-5

3x\geq -6

divide by 3 both sides

x\geq -2

The solution of the inequality A is the interval [-2,∞)

-2x-7\geq 5 ----> inequality B

adds 7 both sides

-2x\geq 5+7

-2x\geq 12

divide by -2 both sides

Remember that when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol

x\leq -6

The solution of the inequality B is the interval (-∞,-6]

therefore

The solution of the system is

x\geq -2  or  x\leq -6

7 0
3 years ago
On. If your car gets 30 miles per gallon, find the co
adelina 88 [10]

C. $34.50. A car gets 30 miles per gallon, if the gasoline cost $1.15 per gallon, a 900 miles trip will cost $34.50

This exercise can be solved by simply arithmetic.

Divide the total miles by the miles per gallon:

900/30 = 30

Then, multiply this value by the cost per gallon:

30 x $1.15 = $34.50

4 0
4 years ago
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Vanessa caught one fish with a mass of 1.78 kilograms and a second fish with a mass of 1.46 kilograms. What is the total mass, i
xeze [42]
3.24 kilograms
Simply just add 1.78 kg +1.46 kg for the total mass of 3.24 kg
6 0
3 years ago
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