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SVETLANKA909090 [29]
4 years ago
9

At 3 p.m., the outside temperature was 4 degrees F. The temperature then fell steadily by 2 degrees F every hour for the next fo

ur hours. What was the temperature at 7 p.m.?
Mathematics
1 answer:
jasenka [17]4 years ago
8 0
-4 degrees Fahrenheit
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How to find simple interest rate?
AveGali [126]

Answer:

To find simple interest you take

= Principal ×Rate ×Time ÷ 100

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4 years ago
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A toy falls from a window 70 feet above the ground. How long does it take the toy to hit the​ ground?
Korolek [52]

Answer:

2.09 seconds.

Step-by-step explanation:

We are given...

y = 70 feet

v0 = 0 feet/second

a = 32 feet/second^2

We need to find t using the following equation...

y = v0 * t + (1/2) * a * t^2

70 = 0 * t + (1/2) * 32 * t^2

70 = (1/2) * 32 * t^2

70 = 16t^2

16t^2 = 70

t^2 = 4.375

t = sqrt(4.375)

t = 2.091650066

So, it will take the toy about 2.09 seconds to hit the ground.

Hope this helps!

6 0
3 years ago
Please help with this math problem! Will give brainliest!! :)
IgorLugansk [536]

Answer:

x = 20

y = 70

Step-by-step explanation:

Solve for x:

5x - 20 = 3x + 20

2x - 20 = 20

2x = 40

x = 20°

Solve for y:

x + y = 90°;

(20) + y = 90°

y = 90 - 20

y = 70°

Hope this helps!

3 0
3 years ago
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Pleaseee help me....what will the y-coordinate of b' if ab is dilated by a factor of 2/5, centered at the origin. A=(2,2) B=(10,
sdas [7]

Answer:

The y-coordinate of B' is equal to 2

Step-by-step explanation:

step 1

Find the distance of AB

AB=10-2=8\ units

step 2

Find the length of A'B'

Multiply the length of AB by the scale factor

A'B'=8*\frac{2}{5}= 3.2\ units

step 3

Find the midpoint AB

M=(\frac{2+10}{2},\frac{2+2}{2} )

M=(6,2)

step 4

<em>Find the x-coordinate of B'</em>

The x-coordinate of B' is equal to the x-coordinate of midpoint plus the semi distance A'B'

6+\frac{3.2}{2}=6+1.6=7.6

<em>Find the y-coordinate of B'</em>

The y-coordinate of B' is equal to 2 (because is a horizontal line)

3 0
4 years ago
Read 2 more answers
Pls hewllllll[p ill give anytthing picture is down
True [87]

Answer:

It would be A

Step-by-step explanation:

The other answers do not make sense.

First of all: Area= length x width.

Two of the options were larger than 49.7, so we could cross those out

Then, we look at A and B.  

46.2 x 3.5 = 161.7, which is WAY larger than 49.7.

Since we have no option left to test, we can test A:

14.2 x 3.5= 49.7

Now we cam be sure that the answer is 14.2, or, A.

HOPE THIS HELPED:)

7 0
3 years ago
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