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3 years ago

Overnight, the temperature dropped 1.3 degrees every hour. How many hours did it take the temperature to drop 7.8 degrees?

Mathematics

1 answer:

Mariana [72]3 years ago

4 0

Answer:

what was the temperature at first?

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NEED HELP IMMEDIATELY. I WILL BRAINLIEST. NEED TO SOLVE FOR X INTERCEPT

Kay [80]

Answer:

(1+√7,0),(1−√7,0)

Step-by-step explanation:

You can't factor the expression evenly, so use the quadratic formula.

a = 2

b= -4

c= -12

$\frac{-b+\sqrt{b^{2}-4ac } }{2a}$

$\frac{4+\sqrt{16{}-4(2)(-12)} }{2(2)}$

$\frac{4+\sqrt{16-4(-24)} }{4}$

$\frac{4+\sqrt{16+96} }{4}$

$\frac{4+\sqrt{112} }{4}$

$\sqrt{112} = 4\sqrt{7}$

End result: (1+√7,0),(1−√7,0)

5 0

3 years ago

Find the measure of the interior angles.

nexus9112 [7]

Interior angles of a triangle should always add up to 180.
180-154=26
26-13=13
X=13

6 0

3 years ago

Read 2 more answers

Round to ten thousands 25497 54088

Inessa [10]

I think it's 254974090

4 0

3 years ago

How many different four-digit numbers can be formed with the numbers 7; 4; 5; 1; 2; 9; and 8?

Masja [62]

Answer:

If I'm correct, the answer is 1296.

Step-by-step explanation:

6 x 6 x 6 x 6 = 1296

7 0

3 years ago

What is the difference in the size between 1/4 and 1 1/2

masya89 [10]

1 1/2 can be rewritten as 3/2
Difference means subtraction

So we do:
3/2-1/4
To get the same denominator, we can multiply the first fraction by 2
6/4-1/4

Then we subtract the numerators and leave the denominator
So the final answer is 5/4 of 1 1/4

Hope this helps

8 0

3 years ago