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
Helen [10]
2 years ago
8

Help pls again hmmmm​

Mathematics
1 answer:
iVinArrow [24]2 years ago
5 0

Answer:

here is your answer

Step-by-step explanation:

option d.)5³/3³

You might be interested in
A palm tree is supported by two guy wires as shown in the diagram below. Which trig expression can be used to find the height on
Volgvan

Answer:

D. tan(30^\circ+45^\circ) is the correct answer.

Step-by-step explanation:

The given situation can be represented as a figure attached in answer area.

B is the base of tree.

C is the base of wires.

A and D are the end of 2 wires supporting the tree.

\angle DCB =45^\circ\\\angle ACB =75^\circ\\

Here, we need to find the Height of the tree which is represented the by side AB.

and we are given that bases of wires and tree base are at a distance 4 ft.

i.e. side BC = 4 ft

If we look at the \triangle ABC, we are given the base BC and the \angle ACB, and the perpendicular is to be find out.

We can use trigonometric identity:

tan\theta =\dfrac{Perpendicular}{Base}

tan 75^\circ = \dfrac{AB}{BC}\\\bold {tan (45+30)^\circ }= \dfrac{AB}{4}\\\Rightarrow AB = \bold {tan (45+30)^\circ } \times 4 = 14.93\ ft

Hence, D. tan(30^\circ+45^\circ) is the correct answer.

5 0
3 years ago
Assume that the empirical rule is a good model for the time it takes for all passengers to board an airplane. The mean time is 4
slamgirl [31]

Answer:

The interval that describes how long it takes for passengers to board the middle 95% of the time is between 40.16 minutes and 55.84 minutes.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 48, \sigma = 4.

Which interval describes how long it takes for passengers to board the middle 95% of the time?

This is between the 2.5th percentile and the 97.5th percentile.

So this interval is the value of X when Z has a a pvalue of 0.025 and the value of X when Z has a pvalue of 0.975

Lower Limit

Z has a pvalue of 0.025 when Z = -1.96. So

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

-1.96 = \frac{X - 48}{4}

X - 48 = -1.96*4

X = 40.16

Upper Limit

Z has a pvalue of 0.975 when Z = 1.96. So

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

1.96 = \frac{X - 48}{4}

X - 48 = 1.96*4

X = 55.84

The interval that describes how long it takes for passengers to board the middle 95% of the time is between 40.16 minutes and 55.84 minutes.

7 0
3 years ago
Please help I don't understand!
coldgirl [10]

Answer:

AB

Step-by-step explanation:

I believe because on the other side it is AE over ED so I just repeated the pattern.

6 0
2 years ago
Which is a factor of 4x^2-6x-40?
Dmitry [639]
(2x + 5) / (3x + 5) as ur answer
6 0
3 years ago
Help pls!!!!!!!!!!!!!!!!
BlackZzzverrR [31]

Answer:

b 3.13

Step-by-step explanation:

did this beofer

3 0
3 years ago
Read 2 more answers
Other questions:
  • Can I have some help with this? <br>5b+4+10=2
    5·2 answers
  • Graph the equation y=-x. is (5,5) on the line? what is the slope of the line?
    7·1 answer
  • Graph the ordered pairs for y = 3x + 3 using x={−2,  1, 2}
    8·2 answers
  • PLEASE HELP IM TIMED!!!!!!!!
    9·2 answers
  • Solve the Inquality -2(w+4)+9​
    10·1 answer
  • AJLK ~ APQR. Find the value of .<br> 22<br> 14<br> 7<br> 1<br> 8<br> K<br> 16<br> 20<br> 2=
    9·1 answer
  • The steak dinner close the restaurant nine dollars they market up at 260% what is the price on the menu
    13·1 answer
  • Find a formula for the arithmetic sequence consisting of the positive multiples of 4
    14·1 answer
  • 1+1 =?<br> I'm not sure need help
    14·2 answers
  • Resultado de la operación -2-(5-3)+4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!