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ZanzabumX [31]
2 years ago
13

Suppose there is a 2.1°F drop in temperature for

Mathematics
1 answer:
Leno4ka [110]2 years ago
8 0
It would be 42.8

How I got this answer :

Every thousand feet is 2.1 and then times that by 12 giving you 25.8 ( 2.1 x 12 = 25.2)

So now you will get the original temperature (68.0) ( 68.0 - 25.2 = 42.8)

And thats your answer

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The measure of an angle is 78°. What is the measure of a complementary angle?
ki77a [65]
First you need to know the definition of a complementary angle. That means that two angles add up to 90 degrees, or a right angle.

To find an angle complementary to a 78 degree angle, you need to subtract 78 from 90. 

90 - 78 = 12
6 0
3 years ago
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How many solutions does 2x + 3y = -6 and <br><br> 3x - 4y = -12 have
Ostrovityanka [42]

Answer:

As there are 2 equations and two unknowns there is 1 solution

8 0
3 years ago
What is the value of z?
VashaNatasha [74]

Answer:

z = 61

Step-by-step explanation:

The exterior angle is congruent (equal to) the sum of the 2 farthest angles from it, so you can set the equation like this:

z + z - 11 = z + 50

Add like terms, which would be the 2 "z's" on the left side:

2z - 11 = z + 50

Then subtract the z on the right side from both sides:

2z - 11 = z + 50

-z          -z

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z - 11 = 50

Add 11 to both sides:

z - 11 = 50

  + 11    +11

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z = 61

6 0
2 years ago
During which one-day interval did she work the most hours?
Karo-lina-s [1.5K]
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5 0
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Find of the areas of the squares PQRSto that of ABCD where PQ=9cm and AB=5cm​
Ket [755]

Answer: Area of square PQRS is 81cm^2 and of ABCD is 25cm^2

You know its a square. Which means all the sides are equal and same length. If you dont know what's a square then here is the definition:

Square is a plane figure with four equal sides and four right (90°) angles.

So now we know both of are squares, in case of the first square, PQRS, one side length is already given which is PQ=9cm. Now one side is 9cm which means all the sides are 9cm's (PQ=9cm, QR=9cm, RS=9cm,SP=9cm). So to find area just multiply them:

9cm * 9cm = 81cm^2

Now you found the area of the first square. So for the second square, ABCD, one side length is 5 cm so all the rest three sides are also 5 cm. Again, multiply them in order to find the area:

5cm * 5cm = 25cm^2

So square PQRS is 81cm^2 to that of square ABCD is 25cm^2

CAUTIONS: IT IS NOT THAT HARD YA KNOW

By the way, hope it helps! ^^

7 0
2 years ago
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