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Lina20 [59]
2 years ago
5

Will give brainliest!!! pls help with all questions

Mathematics
1 answer:
Mila [183]2 years ago
4 0
It would be a lot better if you zoomed in for these since it’s nearly impossible to read.
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Suppose f(x) is a function which satisfies f'(3) = 0,f'(5) = 0, f"(3) = -4, and f"(5) = 5.
Dennis_Churaev [7]
If you find the answer let me know please e
8 0
2 years ago
How can I do 30-4 as a mixed number
sertanlavr [38]
30 over 4 = 15·2 over 2·2 = 15 over 2 = 1 + 7·2 over 2 = 7 1 over 2
Whole number =7
Fraction = 1 over 2

Hope this helps
6 0
2 years ago
What is 10% of the number 50?
madam [21]

5.

To find this, you can do the is over of technique.

The is over of technique is as says - is over of and percent over one hundred.

If you use this technique, your equation should look like this:

x/50 = 10/100

Cross multiply 10 and 50 and divide by 100 to get the answer of 5.

Hope this helps!

7 0
3 years ago
Read 2 more answers
The national average sat score (for verbal and math) is 1028. if we assume a normal distribution with standard deviation 92, wha
elena55 [62]

Let X be the national sat score. X follows normal distribution with mean μ =1028, standard deviation σ = 92

The 90th percentile score is nothing but the x value for which area below x is 90%.

To find 90th percentile we will find find z score such that probability below z is 0.9

P(Z <z) = 0.9

Using excel function to find z score corresponding to probability 0.9 is

z = NORM.S.INV(0.9) = 1.28

z =1.28

Now convert z score into x value using the formula

x = z *σ + μ

x = 1.28 * 92 + 1028

x = 1145.76

The 90th percentile score value is 1145.76

The probability that randomly selected score exceeds 1200 is

P(X > 1200)

Z score corresponding to x=1200 is

z = \frac{x - mean}{standard deviation}

z = \frac{1200-1028}{92}

z = 1.8695 ~ 1.87

P(Z > 1.87 ) = 1 - P(Z < 1.87)

Using z-score table to find probability z < 1.87

P(Z < 1.87) = 0.9693

P(Z > 1.87) = 1 - 0.9693

P(Z > 1.87) = 0.0307

The probability that a randomly selected score exceeds 1200 is 0.0307

5 0
3 years ago
Dr. Cwetna recorded all of the grades on a unit test on the chart below.
labwork [276]

Answer:

1. 82.75

2.10.65

3. 93.4, 72.1

4. 104.05, 61.45

5. 114.7, 50.8

6. Yes

7.  Because of the placement of these ranges on the graph

8. 35/91 = .38 %

By taking the amount of all of the students who scored a 90 or above and dividing it by the total amount of students.

Step-by-step explanation:

PLEASE MARK ME BRANLIEST

4 0
3 years ago
Read 2 more answers
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