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3 years ago

Please help! brainliest, rattings, thanks ect, the attachment is posted below

Mathematics

1 answer:

Bad White [126]3 years ago

6 0

For question 3, the answer is f(x)=3x-4.

In question 3, if -7 is f(x), and it is 3x-4, the answer is -1; if -7 is f(x), and the answer is 4x-3, the answer is -1; if -7 is f(x), and it is 1/2x+3, answer is -20; if -7 is f(x), and it is 3x+1/2, the answer is -5/2.

But, if -4 is f(x), and it is 3x-4, the answer is 0; if -4 is f(x), and it is 4x-3, the answer is -1/4.

So f(x)=3x-4 is the answer for question 3.

For question 4, the answer is the last choice.

Like the one above 3x was the rate and -4 is the initial value.

So for this one, 2/3 is the rate and -2 is the initial value.

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Please someone help me

irina1246 [14]

The area of the triangle extension is 12, because the total side length it is on is 18, and the segments to the sides of the triangle are 6 each, meaning 18-12=6, the height of the triangle. The base is given as 4, so 1/2(4x6)=24/2=12.

Add this to the area of the rectangle, 9x18=162, and 162+12=174.

The area is 174.

7 0

3 years ago

Read 2 more answers

Please help!!

inessss [21]

Answer:

2.82 seconds (3 sf)

Step-by-step explanation:

s = ut + 0.5at²

6 = -95(sin25)t + 0.5(32)t²

16t² - 40.14873487t - 6 = 0

t = 2.818501699, -0.1419193751

t is time so can't be negative.

Therefore, t = 2.82s (3 sf)

4 0

3 years ago

Is each number correctly expressed in scientific notation? Choose Yes or No.

solong [7]

Answer:

Step-by-step explanation:

The first one is incorrect because would be 4,836,000 instead of 4,836,000,000. The correct notion would be $4.836*10^9$

6 0

3 years ago

Elena went 60 meters in 15 seconds Noah went 50 meters in 10 seconds Elena and Noah both moved at a constant speed .how far did

sukhopar [10]

Answer:

I believe it would be 4 meters in one second

Step-by-step explanation:

I think this because you would divide meters by time.

7 0

3 years ago

Read 2 more answers

A __________ is a graphical summary of data previously summarized in a frequency distribution. a. box plot b. histogram c. scatt

OLga [1]

Answer: b. histogram

Step-by-step explanation:

A histogram is a graphical summary of data previously summarized in a frequency distribution. It is an accurate representation of the distribution of numerical data, the height of each bar shows how many fall into each range(the frequency of each range). Data from a frequency distribution table can be easily summarised graphically on a histogram.

An example of histogram is shown in the attachment

8 0

3 years ago