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3 years ago

Which statement best describes the function represented by the graph?

Mathematics

1 answer:

forsale [732]3 years ago

8 0

Answer:

Step-by-step explanation:

You read a graph from left to right, just like you would read words on a page in a book. At the left-most "side" of this graph, we are way up at positive infinity. As we move from left to right, the graph begins to drop in y values. A drop in y values indicates a decreasing graph. So it's decreasing, we have that part. As the graph grows up into y values that increase forever, it will also grow in the x direction to negative infinity. As the graph decreases in y values from left to right, the x values increase into positive infinity. So your choice is the second one: The function is decreasing on the interval (-∞, ∞).

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The dimensions of the hallway below are 5 ft. and 4 ft. If the area were to be covered with carpet which costs $2.50 per square

cluponka [151]

You should just add that well help you

7 0

3 years ago

a homeowner is planning an addition to her house. she wants the new family room to be a rectangle with an area of 192 feet. The

kozerog [31]

Answer:

length=16feet width=12feet

Step-by-step explanation:

This may not be the best way, i just stumbled upon the answer using this.

I knew 14*14=196, which is relatively close to 192.

Then, I took away 2 from one of the 14s and added it to the other 14.

14-2=12 14+2=16

Apparently, 16*12 is 192, so that's the answer.

6 0

3 years ago

Katie gives Maggie half of her pencils. Maggie keeps 5 pencils and gives the rest to Jamil. A. Write an expression for the numbe

Alexandra [31]

Here's what I mean when I write x/2 JUST IN CASE.

а.

Let the total number of pencils be x, then this implies that Maggie received x/2 pencils from Katie. Maggie keeps 5 and give the rest to Jamil, this means

that Jamil receives

x/2-5 pencils.

b. Expression of pencils given to Jamil is: x/2-5

Substitute x=16 in this expression: x/2-5

Simplify and evaluate: = 8-5= 3

Maggie gives 3 pencils to Jamil.

c. Expression of pencils given to Jamil is: x/2-5 to

Equate this expression with 1 to form an equation and solve for x all, the total

number of pencils if Jamil received 1 pencil:

x/2 - 5 = 1

Solve for x:

x = 2(1+ 5)

Evaluate:

x = 2(6) = 12

Katie had 12 pencils if Jamil received 1 pencil.

RESULT

a. Expression of number of pencils given to Jamil is x/2-5, where x is total number of pencils.

b. Maggie gives 3 pencils to Jamil.

c. Katie had 12 pencils if Jamil received 1 pencil.

5 0

3 years ago

(4 ten thousands 8hundreds) divided by 10

mihalych1998 [28]

Answer:

480

Step-by-step explanation:

3 0

2 years ago

Suppose a university advertises that its average class size is 34 or less. A student organization is concerned that budget cuts

Korolek [52]

Answer:

H0: μ ≤ 34

H1: μ > 34

The z-test statistic is ≈ 1.8

The critical z-score is 1.28

we fail to reject the null hypothesis H0: μ ≤ 34

Step-by-step explanation:

H0: μ ≤ 34

H1: μ > 34

The z-test statistic is calculated using the formula:

z= $\frac{X-M}{s}$ where

X is the average class size found in the sample (35.6)
M is the mean according to the null hypothesis (34)
s is the standard deviation for class size (9)

then z= $\frac{35.6-34}{9}$ ≈ 0.18

The critical z-score is 1.28 for α=0.10 (one tailed)

Because the test statistic is less than the critical value, do not reject the null hypothesis.

8 0

3 years ago