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babunello [35]
3 years ago
14

Help me. its confusing

Mathematics
1 answer:
kvasek [131]3 years ago
4 0
Add 300 and then will still be confused
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Let ​ f(x)=x2+10x+29 ​. What is the minimum value of the function?
OlgaM077 [116]
(-5, 4)

You can get this by finding the vertex at -b/2a for x value and plugging in to find the y value. 
6 0
3 years ago
Read 2 more answers
A graduate school entrance exam has scores that are normally distributed with a mean of 560 and a standard deviation of 90. What
9966 [12]

26.8% of examinees will score between 600 and 700.

This question is based on z score concept.

A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of values. Z-score is measured in terms of standard deviations from the mean. If a Z-score is 0, it indicates that the data point's score is identical to the mean score.

z={x-\mu  \over \sigma }

where:

μ is the mean

σ is the standard deviation of the population

Given:

μ = 560

σ = 90

For

600≤ X≤700

for x = 700

Z score =x - μ/σ

=(700 - 560)/90

      = 1.55556

P-value from Z-Table:

P(560<x<700) = P(x<700) - 0.5 = 0.44009

for x = 600

Z score =x - μ/σ

=(600 - 560)/90

      = 0.44444

P-value from Z-Table:

P(560<x<600) = P(x<600) - 0.5 = 0.17164

∴ P(600<x<700) = P(560<x<700) - P(560<x<600)

                           = 0.44009 - 0.17164

                          =0.26845

∴26.8% percentage of examinees will score between 600 and 700.

Learn more about Z score here :

brainly.com/question/15016913

#SPJ4

4 0
1 year ago
∠1 ​ and ∠2 are supplementary. ∠1=124°∠2=(2x+4)° Select from the drop down menu to correctly answer the question.
Alex_Xolod [135]
Remark
Supplementary angles add up to 180o. 

Givens
<1 = 124
<2 = 2x + 4

I imagine you are looking for either x or <2. 

Equation
<1 + <2 = 180          Substitute the givens
124 + 2x + 4 = 180  Collect like terms on the left.
128 + 2x = 180         Subtract 128 from both sides
2x = 180 - 128          Collect like terms on the right   
2x = 52                     divide by 2
x = 52/2
x = 26 <<<<<<<<< answer

<1 = 124
<2 = 2x + 4 = 2*26 + 4
<2 = 52 + 4
<2 = 56  <<<<<<<< answer

We need choices if you want an exact answer.

3 0
3 years ago
In the middle school debate club,30% of the members are in sixth grade.if there are 12 sixth graders in the debate club,how many
kondaur [170]

Answer:

54

Step-by-step explanation:  

8 0
3 years ago
Pls answer if u know :) <br><br> This is a very important homework and i was gone for days so idk
aliya0001 [1]

Answer:

Option B

Step-by-step explanation:

Slope of the line is calculated by the formula:

m=\frac{y_2-y_1}{x_2-x_1}\\\\

We have the points ( -2 , 4) and (3 , -5) so plug in the values in the formula:

m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{-5-4}{3-(-2)}\\\\m=\frac{-9}{5}\\

so the slope(m) equals -9/5

6 0
3 years ago
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