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grandymaker [24]
3 years ago
13

The temperature was -11. By noon, it increased by 12. What was the temperature at noon?

Mathematics
2 answers:
Leona [35]3 years ago
8 0
The temperature was 1 because of you add them
-11+12=1
Tatiana [17]3 years ago
4 0
1 degrees. You need to add them but because the 11 is a negative and the twelve is a positive (Twelve being the bigger number) you'd take the positive sign.
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the length of diagonal of a rectangular field is 23.7 m and one of its sides is 18.8 m. find the perimeter of the field.​
katen-ka-za [31]

Answer:

Approximately 66.4 Meters

Step-by-step explanation:

So we have a rectangle with a width of 18.8 meters and a diagonal with 23.7 meters. To find the perimeter, we need to find the length first. Since a rectangle has four right angles, we can use the Pythagorean Theorem, where the diagonal is the hypotenuse.

a^2+b^2=c^2

Plug in 18.8 for either <em>a </em>or <em>b. </em>Plug in the diagonal 23.7 for <em>c. </em>

<em />(18.8)^2+b^2=23.7^2\\b^2=23.7^2-18.8^2\\b=\sqrt{23.7^2-18.8^2} \\b\approx14.4 \text{ meters}

Therefore, the length is 14.4 meters. Now, find the perimeter:

P=2l+2w\\P=2(14.4)+2(18.8)\\P=66.4\text{ meters}

7 0
2 years ago
How many boys are in the choir​
Dafna11 [192]

9514 1404 393

Answer:

  D.  210

Step-by-step explanation:

If b is the number of boys in the choir, the ratio of boys to girls is ...

  b/150 = 7/5

  b = 150(7/5) = 30(7) = 210

There are 210 boys in the choir.

8 0
3 years ago
Emily would like to buy some new
bonufazy [111]

Answer:

$14,277.80

Step-by-step explanation:

The standard formula for compound interest is given as;

A = P(1+r/n)^(nt) .....1

Where;

A = final amount/value

P = initial amount/value (principal)

r = rate yearly

n = number of times compounded yearly.

t = time of investment in years

For this case;

P = $7,400

t = 8 years

n = 4 (quarterly)

r = 9.5% = 0.095

Using equation 1.

A = $7,400(1+0.095/4)^(4×7)

A = $7,400(1.02375)^(28)

A = $7,400(1.929432606035)

A = $14,277.80

final amount/value after 8 years A =$14,277.80

6 0
2 years ago
Select an expression that is equivalent to <img src="https://tex.z-dn.net/?f=4%5Csqrt%7Bx%5Cfrac%7B2%7D%7B3%7D%20%7D" id="TexFor
qwelly [4]
Maybe A I’m not one hundred percent sure but good luck
7 0
3 years ago
Read 2 more answers
Dion is playing the game tag with his friend bill they have played the games every day during play time at school for the last 4
Margarita [4]
You would subtract how many times Dion tagged bill with how many times bill tagged Dion, so 12 - 7 = 5
7 0
2 years ago
Read 2 more answers
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