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2 years ago

11

the electricity goes out in a house the temperature in the house changes by -8 F in 4 hours on average, by how many degrees is t

he temperature changing per hour

1 answer:

hodyreva [135]2 years ago

6 0

It’s changing by -2° F per hour

You might be interested in

How many solutions does the system have?<br><br><br><br> y=−2x+4y=x2−2x+4

zlopas [31]

Answer:

One solution

Step-by-step explanation:

we have

$y=-2x+4$ ---> equation A

$y=x^{2}-2x+4$ ---> equation B

Solve the system by graphing

Remember that the solution of the system is the intersection point both graphs

using a graphing tool

there's only one point of intersection

so

The solution is the point (0,4)

see the attached figure

therefore

The system of equations has only one solution

5 0

2 years ago

A football field measures 300 feet in length. It can also be expressed as approximately 5. 7 times 10 Superscript n miles. If th

CaHeK987 [17]

The most reasonable value of n n = -2.

We have given that the length of the football field = 300 feet

It can also be expressed as approximately $5.7\times 10^{n}miles$

<h3>What is the value of one mile in feet?</h3>

Also, 1 mile = 5280 feet....(1)

We have to find 1 feet so divide both side of equation (1)by by 5280 we get,

$1feet=\frac{1}{5280}$

Now, for 300 feet is,

$300feet=\frac{1}{5280}(300)$

$300 feet=0.056818181=0.057miles$

In scientific notation we have,

$300 feet=5.7\times 10^{-2}miles$

Therefore we get n = -2.

To learn more about the value of power of 10 visit:

brainly.com/question/2193418

5 0

1 year ago

A section of a deck is shaped like a trapezoid. For this section, the length of one base is 23 feet, and the length of the other

Virty [35]

Answer:

Area of a trapezoid= (big base+small base)/2 x height

A=(67+54)/2 x 18

A=60.5 x 18

A=1089

3 0

2 years ago

The formula s = StartRoot StartFraction S A Over 6 EndFraction EndRoot gives the length of the side, s, of a cube with a surface

never [62]

Answer:

$2\sqrt{2}\ ft\ longer$

Step-by-step explanation:

<u>Area Of A Cube </u>

Suppose a cube with side length s, the area of one side is

$A_s=s^2$

Since the cube has 6 sides, the total area is

$A=6A_s=6s^2$

But if we have the area, we can solve the above formula for s to get

$A=6s^2$

$\displaystyle s=\sqrt{\frac{A}{6}}$

We have two different cubes with areas 1,200 square inches and 768 square inches. Let's compute their side lengths

$\displaystyle s_1=\sqrt{\frac{1,200}{6}}=\sqrt{200}$

$\displaystyle s_1=10\sqrt{2}\ ft$

$\displaystyle s_2=\sqrt{\frac{768}{6}}=\sqrt{128}$

$\displaystyle s_2=8\sqrt{2} ft$

The difference between them is

$10\sqrt{2}\ ft-8\sqrt{2}\ ft=2\sqrt{2}\ ft\approx 2.83\ ft$

The side of the cube with area 1,200 square inches is $2\sqrt{2}\ ft$ longer then the side of the cube with area 768 square inches

7 0

2 years ago

Read 2 more answers

Figure TUVW ≅ figure ABCD, AB = 12, CD = 6, and DA = 4.

Olegator [25]

The measure of VW is 6. It's because since the figures are congruent their names are written in correspondence ....so since VW corresponds to CD , the answer must be 6.

6 0

2 years ago

Read 2 more answers