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Umnica [9.8K]
3 years ago
15

What is multiply: -7*4

Mathematics
1 answer:
Luden [163]3 years ago
7 0

Answer:

-28

you welcome ........ :)

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Can someone write the point slope equation
valentinak56 [21]
Since you have the slope, you can start your equation with y= -8/7x +b. To find b, plug the X value for the point you were given in for the X (-8/7•4) you get -32/7 or -4.57. Then you take the given Y value(4) and subtract the number you just found (4-(-4.57)). You get 8.57. That means your equation is Y= -8/7 + 8.57
6 0
3 years ago
Need help solving please ​
zzz [600]

Answer:

2

Step-by-step explanation:

because u have to single out the 3 x by subtracting 2 on both sides

8 0
3 years ago
Endure all, a manufacturer of batteries claims that the lifetime of their batteries is normally distributed with a mean of 500 h
ycow [4]

Based on the z-score, an Endure All battery selected at random has a 10.56% chance of lasting more than 550 hours.

<h3>What are z-scores?</h3>

How closely a value relates to the mean of a set of values is expressed by a Z-score.

The Z-score is created using standard deviations from the mean.

A data point's total value is equal to the mean value when the Z-score of the data point is equal to 0.

So, in order to determine how far the raw score deviates from the mean, the Z score is used.

The following steps are used to determine the Z score:

z = (x - μ)/σ

We know that:  x > 550 and μ = 500, σ = 40

z = 550 - 500 / 40

z = 1.25

The graph of the normal distribution indicates:

P(z > 1.25) = 1 - P(z < 1.25)

P(z > 1.25) = 1 - 0.8944

P(z > 1.25) = 0.1056

Therefore, based on the z-score, an Endure All battery selected at random has a 10.56% chance of lasting more than 550 hours.

Know more about the z-scores here:

brainly.com/question/25638875

#SPJ4

7 0
1 year ago
5e = 18.1 ---I gotta know what number the e is---
Inessa [10]

Answer:

b I guess

Step-by-step explanation:

I just wanna get point

6 0
3 years ago
Please help me with this equation, the values are in the file <br><br> x + B = Fx - Dx + H
Olin [163]

Answer:

x = -6

Step-by-step explanation:

B = 2

F = 6

D = 4

H = 8

x + B = Fx - Dx + H

x + 2 = 6x - 4x + 8

x + 2 = 2x + 8

-x = 6

x = -6

3 0
2 years ago
Read 2 more answers
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