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Pie
3 years ago
7

Please help me anyone

Mathematics
1 answer:
iris [78.8K]3 years ago
7 0

It's very blurry can u retake it?

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Find the surface area of the triangular prism. and equation plz
Firdavs [7]

Answer:

648

Step-by-step explanation:

A=Ph

P=perimeter of triangle

P=6+6+6

P=18

h= height of prism

h=38

A=ph

A=18*36

A=648

4 0
2 years ago
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F=fg/f+g-d Solve for f. F and f are different!
Masteriza [31]
You are the smartest person i know
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3 years ago
H(x)=2xsquared -3 what is the value of h(-4)?​
Free_Kalibri [48]

Answer:

29

Step-by-step explanation:

h(x) = 2 * x^2 - 3

h(-4) = 2* (-4)^2 - 3

h(-4) = 2 * 16 - 3

h(-4) = 32 - 3

h(-4) = 29

8 0
2 years ago
Explain the difference in meaning between 1-3 and -3
sveticcg [70]

Answer:

The difference in meaning is that

-3 is a signed value. It lies to the left of zero

+3 is also a signed value, and since it is positive, it lies to the right of zero

|-3| is just the physical distance (left or right) of -3 from zero. Since we live in a physical world, all distances are positive, so its signed value is 3.

Since +3 is also 3 units from zero, |+3| = 3

|-3| = |+3| = 3 since both are three units away from zero.

So, when using absolute values as numbers, rather than distances,

|x| = x if x is not negative

|x| = -x if x is negative

7 0
2 years ago
I need the answer for a & b
Licemer1 [7]

Answer:

a. 2.14% should have IQ scores between 40 and 60

b. 15.87% should have IQ scores below 80

Step-by-step explanation:

* Lets explain how to solve the problem

- For the probability that a < X < b (X is between two numbers, a and b),

 convert a  and b into z-scores and use the table to find the area

 between the two z-values.

- Lets revise how to find the z-score

- The rule the z-score is z = (x - μ)/σ , where

# x is the score

# μ is the mean

# σ is the standard deviation

* Lets solve the problem

- IQS are normally distributed with a mean of 100 and standard

 deviation of 20

∴ μ = 100 and σ = 20

a.

- The IQS is between 40 and 60

∴ 40 < X < 60

∵ z = (x - μ)/σ

∴ z = (40 - 100)/20 = -60/20 = -3

∴ z = (60 - 100)/20 = -40/20 = -2

- Use the z table to find the corresponding area

∵ P(z > -3) = 0.00135

∵ P(z < -2) = 0.02275

∴ P(-3 < z < -2) = 0.02275 - 0.00135 = 0.0214

∵ P(40 < X < 60) = P(-3 < z < -2)

∴ P(40 < X < 60) = 0.0214 = 2.14%

* 2.14% should have IQ scores between 40 and 60

b.

- The IQS is below 80

∴ X < 80

∵ z = (x - μ)/σ

∴ z = (80 - 100)/20 = -20/20 = -1

- Use the z table to find the corresponding area

∵ P(z < -1) = 0.15866

∵ P(X < 80) = P(z < -1)

∴ P(X < 80) = 0.15866 = 15.87%

* 15.87% should have IQ scores below 80

6 0
3 years ago
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