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Lady bird [3.3K]
3 years ago
8

please hurry!! i have a D in math

Mathematics
1 answer:
3241004551 [841]3 years ago
4 0

Answer:

60, and m = 30, and 1 min 20.

Step-by-step explanation:

For A, the 60 is the starting point meaning that the temperature was intitally 60 degrees

For B, if we divided both sides by 2 we get the answer m = 30, meaning every minute, it was up 30 degrees.

For C, we know that in one minute it will be 90 degrees, so 60 seconds = 30 degrees. So lets divided both sides by 3 to get 10 degrees. We get 20 seconds. It will take 1 min and 20 for it to be 100 degrees.

Hopefully thats right.

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Which transformations could be performed to show that △ABC is similar to △A"B"C"?
Over [174]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Please help me, im struggling
Molodets [167]

<u>Part 1</u>

<u />f(a)=4-7a+16a^2

<u>Part 2</u>

<u />f(a+h)=4-7(a+h)+16(a+h)^2\\\\=4-7(a+h)+16(a^2 +2ah+h^2)\\\\=4-7a-7h+16a^2 +32ah+16h^2

<u>Part 3</u>

<u />\frac{f(a+h)-f(a)}{h}=\frac{(4-7a-7h+16a^2 +32ah+16h^2-(4-7a+16a^2)}{h}\\\\=\frac{-7h+32ah+16h^2}{h}\\\\=32a+16h-7

7 0
1 year ago
How can you know if this equation is true? 1/2 + 3/8 = 4/10 = 2/5
romanna [79]

Answer:

<h2>2. Because 25<12, this equation can not be true.</h2>

Step-by-step explanation:

I just solved the equation and 1/2 + 3/8 = 7/8 or 87.5%.

4/10 equals 40%.

Since these two do not sync up, the equation must be false and 2 is the only answer saying the equation is false.

I'm always happy to help :)

3 0
3 years ago
In 1 year, 120 students passed GCSE maths. The following year 98 passed. Find the percentage decrease in the pass rate. PLEASE P
Margarita [4]

Answer:

18% decrease.

Step-by-step explanation:

What you do is you do 120-98 to get 22. You then put that over 120 to get .18333 this equal to 18% decrease or if you need it specifically 18.3%

3 0
2 years ago
I NEED HELPPPppp!!!!
CaHeK987 [17]

Answer:

answer  choice D

Step-by-step explanation:

x => 6 - 4x > 18

= 6-18 > 4x

= - 12 > 4x

= -3 > x

= x < -3

5 0
3 years ago
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