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Gwar [14]
3 years ago
10

The temperature is -13°F. A high pressure front increases the temperature to 18°F. By how much degrees did the temperature incre

ase?
Mathematics
1 answer:
blsea [12.9K]3 years ago
8 0
The difference between the 2 different temperatures.
The key word difference refers to subtraction.
So 18 - ( - 13 )
Subtracting a negative is the same as adding the positive.
So 18 + 13
Solve the statement to get:
31
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Use the quadratic formula to find the solutions to the equation x^2-3x+1=0
Gnom [1K]

Answer:

x_{1}=\frac{+3+\sqrt{5} }{2}\\\\x_{2}=\frac{+3-\sqrt{5} }{2}

Step-by-step explanation:

Using:

x=\frac{-b+-\sqrt{b^{2}-4*a*c} }{2*a}

we will have two solutions.

x^2-3x+1=0

So, a=1   b=-3  c=1

x_{1}=\frac{+3+\sqrt{-3^{2}-4*1*1} }{2*1}\\\\x_{2}=\frac{+3-\sqrt{-3^{2}-4*1*1} }{2*1}

We have two solutions:

x_{1}=\frac{+3+\sqrt{5} }{2}\\\\x_{2}=\frac{+3-\sqrt{5} }{2}

4 0
3 years ago
A sweater is 65% wool by weight. If the sweater weighs 12.4 ounces how many ounces of wool is the sweater?
Mashutka [201]

Answer:

8.06 ounces

Step-by-step explanation:

Ounces of wool of the sweater = percent of wool in the sweater x weight of the sweater

65% x 12.4 ounces

0.65 x 12.4 = 8.06 ounces

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Clarge%5Cmathfrak%7B%7B%5Cpmb%7B%5Cunderline%7B%5Corange%7BQuestion%20%7D%7D%7B%5Corange%7B%
VashaNatasha [74]

Answer:

29

Step-by-step explanation:

As it is a list of prime number, the sequence continues with 29 being the next prime number after 23.

6 0
3 years ago
Help <br><br> Don’t use for points and also be clear or I will take the points back
katen-ka-za [31]

Answer:

x=47°

Step-by-step explanation:

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7 0
3 years ago
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GIVE ME A REAL ANSWER PLEASE! IT IS DUE NOW! Factor completely 3x^2 + 5x + 1.
Elena L [17]

Answer:

prime

Step-by-step explanation:

3x^2 + 5x + 1

it can't be factorizes with rational numbers

3 0
4 years ago
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