1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lemur [1.5K]
2 years ago
7

Please help asap 25 pts

Mathematics
2 answers:
DaniilM [7]2 years ago
6 0
A. 16,-14 should be the a values when you solve the equation for a.
Alona [7]2 years ago
5 0
Hey there

the answer is A

You might be interested in
30 points on this question simply find the volumes of tank a and then find the volume of tank b.
maksim [4K]

Answer:

volume of tank a=65.63

volume of tank b=61.88

Step-by-step explanation:

3.5*3.75*5=65.63

3*3.75*5.5=61.88

brainliest plz

7 0
2 years ago
Read 2 more answers
In Raphael"s class there are 14 boys and 10 girls select whether each statment is true or false
Setler79 [48]
I can’t see the statements
7 0
2 years ago
Read 2 more answers
A math professor notices that scores from a recent exam are normally distributed with a mean of 61 and a standard deviation of 8
Alexeev081 [22]

Answer:

a) 25% of the students exam scores fall below 55.6.

b) The minimum score for an A is 84.68.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 61 and a standard deviation of 8.

This means that \mu = 61, \sigma = 8

(a) What score do 25% of the students exam scores fall below?

Below the 25th percentile, which is X when Z has a p-value of 0.25, that is, X when Z = -0.675.

Z = \frac{X - \mu}{\sigma}

-0.675 = \frac{X - 61}{8}

X - 61 = -0.675*8

X = 55.6

25% of the students exam scores fall below 55.6.

(b) Suppose the professor decides to grade on a curve. If the professor wants 0.15% of the students to get an A, what is the minimum score for an A?

This is the 100 - 0.15 = 99.85th percentile, which is X when Z has a p-value of 0.9985. So X when Z = 2.96.

Z = \frac{X - \mu}{\sigma}

2.96 = \frac{X - 61}{8}

X - 61 = 2.96*8

X = 84.68

The minimum score for an A is 84.68.

8 0
3 years ago
Sonny has $75 to spend. The purchase he wants to make requires$93. If he borrows the extra money that he needs, how much does he
lidiya [134]
All you gotta do is subtract both of the numbers to get how much you need.

93 - 75 = 18

We can double check to see if it's right by using addition

18 + 75 = 93

Sonny needs to borrow 18$ to meet his required amount :D
7 0
3 years ago
In Bonaparte Valley School District, 13% of all students play football and baseball and 25% of all students play baseball. What
vladimir1956 [14]

Answer:

13/25 or 52%

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • If 2 x to the third power is equal to 54, what is two times X to the third power equal to?
    6·1 answer
  • Bridget needs an actor. Actor A is offering her services for an initial $180 in addition to $40 per day. Actor B is offering her
    8·1 answer
  • Joseph would like to make 12 pounds of a coffee blend at a cost of $6.25 per pound. He blends Ground Chicory at $4.40 a
    6·2 answers
  • A point that is 7 units from the y-axis is reflected across the y-axis. What is the distance of this new point from the y-axis?
    15·1 answer
  • A cone with radius 7 centimeters and height 10 centimeters.
    15·2 answers
  • Please tell me the area and attach work the most important part is work since I’m confused on subtracting the side lengths
    10·1 answer
  • When
    8·2 answers
  • Plz help will mark brainliest
    13·1 answer
  • 6x=12+12Find the value of x​
    9·2 answers
  • Identify the graph of y=x3.<br> 4<br> 2.<br> - 2<br> 2<br> 1<br> A<br> Intro
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!