Which area is greatest? a. b=4, h=3.5 b. b=0.8, h=20 c. b=6, h=2.25 d. b=10, h=1.4

1 answer:

4 0

the answer is b because to find the area of something you have to do Base(b) multiplied by the Height(h) and the area of B was 16

A: 14

B: 16

C: 13.5

D: 14

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Solve for x and y

BigorU [14]

You can use elimination
7x - 3y = 4
-10x + 3y = 2
Add both equations
-3x = 6, x = -2
Plug in -2 for x in one equation
7(-2) - 3y = 4
-14 - 3y = 4
-3y = 18, y = -6
Solution: x = -2, y = -6

4 0

3 years ago

4. Which relation is a function?

postnew [5]

<u>Answer:</u>

The last option choice [(1,3), (2,6), (3,9), (4,12)

<u>Step-by-step explanation:</u>

The key idea to understand in a function/relation is that each input can only have one output. Inputs are your x-variables and outputs are your y-variables.

In the first relation, you see the two points (3,4) and (3,5). 3 is your input [since its x] , however, it gives you two outputs [y's], 4 and 5. So you can cross out the first option.

In the second relation, look at the points (3,4) and (3,3). Again, both have the same input 3, but different outputs, 4 and 3. So you can cross out the second option.

In the third relation, look at all of the points. They all share a common input, 1, but different outputs, 2, 3, 4, and 5. So you can cross out the third option too.

Lastly, look at the last relation. They all have different inputs but the key thing to look at here is that each input only has one corresponding output. Thus, this is the right answer.

I hope this helps!

8 0

3 years ago

The temperature at 8:00 am was (-8) degrees today. At 8:00 pm, the temperature was 3 degrees. What is the integer that represent

katrin2010 [14]

The integer that represents the change in temperature from 8:00 am, to 8:00 pm would be 11. Change in temperature would mean the difference between T2 and T1 and this would be 3-(-8) = 11. Hope this answers the question. Have a nice day.

5 0

3 years ago

Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. T

earnstyle [38]

Answer:

36 miles.

Step-by-step explanation:

We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.

$\text{Distance}=\text{Speed}\times \text{Time}$