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adoni [48]
3 years ago
7

How do you simplify y=3/4x-20

Mathematics
1 answer:
Setler [38]3 years ago
5 0

Answer:

It's already simplified. The question might be asking you to find the slope or y intercept. The slope is 3/4 and the y intercept is - 20. Can't confirm though, as I don't know what the question was asking specifically.

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The area of a sector of an circle of a radius 5 cm, formed by an arc of length is 3.5cm. what is the answer
Natali5045456 [20]

Answer:

8.75cm²

Step-by-step explanation:

First we need to find the angle subtended by the arc

L = theta/360 * 2pir

3.5 = theta/360 * 2*3.14(5)

3.5 = theta/360 * 31.4

theta/360 = 3.5/31.4

theta/360 = 0.11146

theta = 0.11146 * 360

theta = 40.13 degrees

Area of the sector = theta/360 * pir^2

Area of the sector = 40.13/360 * 3.14*25

Area of the sector = 40.13/360 * 78.5

Area of the sector  = 8.75cm

Hence the area of the sector is 8.75cm²

5 0
2 years ago
What is the common ratio of the geometric<br> sequence below?<br> -5, -10, -20, -40, -..
andrew11 [14]
2
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3 0
2 years ago
I WILL GIVE BRAINLIEST I NEED HELP ASAP PLEASE!!!
Anit [1.1K]

Answer:

20 ft

Step-by-step explanation:

If you count how many unit’s there is on the picture then multiply by 2, you get 20

4 0
3 years ago
What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with f(x - 7)?
diamong [38]

Answer: B) shifts the line 7 units right.

Step-by-step explanation: When the a number is either added or subtracted  on the <em>inside </em>(will be surrounded by parentheses if it is on the inside) the parent function is moved right and left. Since it is inside parentheses, though, everything that happens will be the opposite of what it shows. Even though it says -7, and you would assume it shifts left, it doesn't. It actually goes to the right.

8 0
3 years ago
Read 2 more answers
Using either the critical value rule or the p-value rule, if a one-sided null hypothesis for a single mean cannot be rejected at
KiRa [710]

Answer:

Step-by-step explanation:

Using either the critical value rule or the p-value rule, a conclusion can be drawn at a level of significance (alpha)

The null hypothesis: u = hypothesized mean

Alternative hypothesis: u > u0 or u < u0 for a one tailed test

Alternative hypothesis for a two tailed test: u =/ u0

To draw a conclusion by failing to reject the null hypothesis as stated then: using critical value

Observed z score > critical z score for both the one and two tailed test.

Or using p value:

P-value > alpha for a one tailed test

P-value > alpha/2 for a two tailed test

Thus, if a one-sided null hypothesis for a single mean cannot be rejected at a given significance level, then the corresponding two-sided null hypothesis will also not be rejected at the same significance level.

8 0
2 years ago
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