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Luba_88 [7]
3 years ago
5

Seven times the difference of twice a number and nine ...

Mathematics
2 answers:
neonofarm [45]3 years ago
8 0

Answer:

7(2x-9)

Step-by-step explanation:

Irina18 [472]3 years ago
3 0

Answer:

4.5

Step-by-step explanation:

7(2x-9)

14x-63=0

14x=63

X=4.5

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What graph matches the related tables ? And please explain why !!!
alina1380 [7]

Graph 1 is related to table C because the first 3 values are increasing, and the 4th value decreases. Or because at 1PM, 3PM, and 5PM, the temperature was increasing, but at 7PM the temperature decreased. Graph 1 shows the first 3 points increasing, and then decreasing at the 4th point.


Graph 2 is related to table A because as the time increases/goes on, the temperature decreases exponentially/continues to decrease at a higher rate than before. From 1-3PM the temperate decreases by 2°F, from 3-5PM it decreased by 8°F, from 5-7PM the temperature decreased by 17°F.


Graph 3 is related to table B because as the time increases/goes on, the temperature decreases at a steady rate of 1°F every 2 hours.

7 0
3 years ago
Read 2 more answers
At 8:00 am yesterday, the temperature was 11°C. By noon, it was 3º warmer. By
morpeh [17]

Answer:

It would be 5 degrees hope this helped

6 0
3 years ago
Can y’all solve all of this please I WILL GIVE MASSIVE POUNTS I REALLY NEEDS HELP WITH THIS THAMK YOU.
jekas [21]

Answer:

okay I will just give the answers 3- 240, 4-69,000 5-42 6-4.80 7- 15 8-115

Step-by-step explanation:

3 0
3 years ago
Which situation is an example of exponential decay?
marshall27 [118]

Answer:

Half Life

Step-by-step explanation:

Cells decay by half of how much they decayed last time. This is an example of  exponential decay.

4 0
3 years ago
Please help me with it is for homework<br><br> I really need help please help me
Solnce55 [7]

Answer:

See explanation

Step-by-step explanation:

Given two expressions:

2(s+0.5)+2(s+1.5)

and

4\left(\dfrac{1}{2}s+\dfrac{1}{4}s\right)+4

a. When s=0,

then

2(s+0.5)+2(s+1.5)=2(0+0.5)+2(0+1.5)=1+3=4

and

4\left(\dfrac{1}{2}s+\dfrac{1}{4}s\right)+4=4\left(\dfrac{1}{2}\cdot 0+\dfrac{1}{4}\cdot 0\right)+4=4

b. When s=12,

then

2(s+0.5)+2(s+1.5)=2(12+0.5)+2(12+1.5)=2\cdot 12.5+2\cdot 13.5=25+27=52

and

4\left(\dfrac{1}{2}s+\dfrac{1}{4}s\right)+4=4\left(\dfrac{1}{2}\cdot 12+\dfrac{1}{4}\cdot 12\right)+4=4(6+3)+4=4\cdot 9+4=36+6=40

c. Since the value of both expressions at s = 12 are different, the expressions are not equivalent.

6 0
3 years ago
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