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UkoKoshka [18]
2 years ago
7

The temperature outside dropped 13°F in 7 hours. The final temperature was -2°F. What was the starting temper

Mathematics
2 answers:
belka [17]2 years ago
4 0

Answer:

11 degrees Fahrenheit

Step-by-step explanation:

-2 + 13 = 11

Vesna [10]2 years ago
3 0

Answer:

11°F

Step-by-step explanation:

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If f(x) = 2х2 +1 and g(x) = х2 -7, find (f-g)(x).
Nookie1986 [14]

Option A

If  f(x) = 2x^2 + 1 and g(x) = x^2 - 7 then (f - g)(x) = x^2 + 8

<em><u>Solution:</u></em>

Given that f(x) = 2x^2 + 1 and g(x) = x^2 - 7

To find: (f - g)(x)

We know that,

(f – g)(x) = f (x) - g(x)

Let us substitute the given values of f(x) and g(x) in above formula,

(f - g)(x) = 2x^2 + 1 - (x^2 - 7)

For solving the brackets in above expression,

There are two simple rules to remember:

When you multiply a negative number by a positive number then the product is always negative.

When you multiply two negative numbers or two positive numbers then the product is always positive.

So the expression becomes,

(f - g)(x) = 2x^2 + 1 -x^2 + 7

Combining the like terms,

(f - g)(x) = 2x^2 - x^2 + 1 + 7\\\\(f - g)(x) = x^2 + 8

Thus option A is correct

8 0
2 years ago
Suppose a building has 5 floors (1-5) which are occupied by officesThe ground floor (0) is not
Lynna [10]

Answer: didn't know

Step-by-step explanation:

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4 0
2 years ago
( There are two similar triangles on the graph below. Use the graph to answer the questions. You must answer each question AND e
Evgen [1.6K]

Answer:

The Slope of both the lines is the same.

Step-by-step explanation:

Given two co-ordinates (x1, y1) and (x2, y2), the slope of a line can be found using the formula:

slope = \frac{y2-y1}{x2-x1}

For the diagonal line of the first triangle, the coordinates are (0, 0) and (2, 1)

slope of diagonal line of first  triangle = \frac{1 - 0}{2 - 0} = \frac{1}{2}

For the diagonal line of the large triangle, the coordinates are (2, 1) and (6, 3)

slope of diagonal line of second  triangle = \frac{3-1}{6-2} = \frac{2}{4} = \frac{1}{2}

7 0
3 years ago
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What is the answer to 2x^4 x x^3=
baherus [9]
Use this. It’s really good

6 0
2 years ago
The divisor of 0.004 is almost zero. What does this tell you about the quotient?
nasty-shy [4]

Answer:

  Its magnitude will be larger than 0.004.

Step-by-step explanation:

When a divisor is less than 1, the quotient will be greater than the dividend.

When the divisor is "almost zero", the quotient will be much greater than the dividend. Here, the dividend may be considered to be "almost zero", so we cannot say anything about the actual quotient except to say its magnitude will be greater than the dividend.

_____

The dividend is positive, so the quotient will have the same sign as the divisor. (Negative divisors can be "almost zero," too.)

3 0
3 years ago
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