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2 years ago

The range of the function given below is the set of all positive real numbers greater than 7. F(x) = 7 + 3x A. True B. False

Mathematics

2 answers:

lianna [129]2 years ago

8 0

True. 3x is always greater than 0 so 7 +3x is always greater than 7.

lord [1]2 years ago

6 0

Answer:

Option A. True

Step-by-step explanation:

Range of the function $f(x)=7+3^{x}$ is defined by the values of F(x) by plugging in the values of x in the function.

In other words when we graph the function as

x 1 2 3 4

F(x) 10 16 30 88

Then the x values define the domain of the given function and values of f(x) define the range.

Therefore, range of the given function will be all positive real numbers greater than 7.

Option A. is the answer.

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The state of south dakota has a population of about 814,000 people. Find the population density in people per square miles if th

Gnom [1K]

Remark

Not many per square mile. Sounds like an ideal place to live.

Step One

Find the number of Square Miles.

Area = Height * Width

Area = 380 * 200

Area = 76,000 square miles.

Step Two

Find the Density

<u>Formula</u>

Density = Population / Square Miles

Population = 814,000 people

Square miles = 76000

Solve

Density = 814000/76000 = 10.7 people per square mile.

Remark

Isn't that incredible. It means if all the Area of South Dakota were given to the people living there, each family of 4 would get roughly 1/2 a square mile.

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2 years ago

the mean length of 7 books is 258 pages . the longest book has 294 pages. what is the mean length of the other 6 books

den301095 [7]

I think you divide.. find the mean of all of the numbers?

8 0

2 years ago

Please help. I am getting in trouble so please try to be correct...

vichka [17]

Answer: The answer is A 17in2

Step-by-step explanation:

In the question it states that the triangles are congruent (both the same).

first I found the area of the top orange triangle.

the formula to find the area of a triangle is $\frac{1}{2} bh$ (base times Height).

so I did $\frac{1}{2} 3.23* 5.12$ which gave me 8.27.

Since the triangles are congruent (the same) they would both have the same area along with base and height. so I multiplied 8.27 by 2 (because there are two triangles) and got 16.54 which rounds up to 17.

the question also stated to find the APPROXIMATE area (close to the actual, but not completely accurate or exact.)

7 0

2 years ago

The grade of a road is the slope of a road. In the U.S., grade is often expressed as a percent by finding the product 100(slope)

bagirrra123 [75]

The grade of a road is the slope of a road. In the U.S., grade is often expressed as a percent by finding the product 100(slope). Approximate the grade of a road that has a rise of 950 ft over 3 mi is :
A. 3%

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2 years ago

In quadrilateral ABDC, AB ∥ CD. Which additional piece of information is needed to determine that ABDC is a parallelogram? AB ≅

siniylev [52]

For any quadrilateral to be a parallelogram

i) either both the pairs of opposite sides must be equal

ii) Both the pairs of opposite sides must be parallel

iii) Opposite pairs of angles must be equal

iv) Diagonals must bisect each other.

v) A pair of opposite sides must be parallel and equal

Here we are already given that AB || CD

So either we should be given that AD || BC

or we must be given that AB = CD

Here it is given AB = CD as an option.

So Option A) or the first option is the right answer that AB ≅CD is needed to prove ABCD is a parallelogram.

7 0

2 years ago

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