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
ELEN [110]
2 years ago
10

If Jeremy is in the 90th percentile in the main office test scores is 180 with a standard deviation of 15 which of the following

scores with Jeremy most likely get on a standardized test 249, 180, 199, or 210?
Mathematics
1 answer:
Alika [10]2 years ago
4 0
199. 

the z score for the 90th percentile is 1.28, so you can solve the equation

\frac{x-180}{15} = 1.28

which gets you the 199
You might be interested in
Find the length of an arc intercepted by a central angle of 0.769 radian on a circle with radius 11.4cm????? PLEASE HELP SHOW AL
KIM [24]
0.769/2pi=what fraction of circle you are having

area=pir^2
area=pi11.4^2
area=pi129.96

what fraction

0.769/2pi times 129.96pi=49.96962 cm^2

the area is 49.96962 cm^2
7 0
3 years ago
Read 2 more answers
Please help!! Need an explanation by tomorrow and I am super confused!
vovangra [49]

Answer:

x = 35

y = 7

Step-by-step explanation:

See how the image looks like two overlapping triangles. It is given that the triangles are congruent. Its easier to see whats what if you draw the triangles separately. I also flipped over the triangle on the right so they match. Record the given angle measures. Since A is 45° then D is also 45°. DBC is 30°, so we can find the missing angle in triangle DBC. Angles in a triangle add up to 180° so

C + 45 + 30 = 180

C + 75 = 180

C = 105°

This is angle DCB.

Now all the angles are marked. We can set up equations to find x and y. see image.

7 0
2 years ago
Product is a 12 ounce bottle of generic mouthwash that sells $4.39 product B is a 24 ounce bottle of mouthwash that cost $2.79 w
Anna35 [415]
Hi there,
To compare we can look at the amount of (ounces)
A: 12         B:24
so as it appears B wins this part
Now price 
A: $ 4.39       B:$2.79
A is relatively expensive than B
B is cheaper with more ounces
A is less ounces and relatively expensive
which one would you buy?
5 0
3 years ago
Hi, teacher I was absent these days and I didn’t understand anything about this lesson and I need help this is not count as a te
motikmotik

Given:

There are given that the cos function:

cos210^{\circ}=-\frac{\sqrt{3}}{2}

Explanation:

To find the value, first, we need to use the half-angle formula:

So,

From the half-angle formula:

cos(\frac{\theta}{2})=\pm\sqrt{\frac{1+cos\theta}{2}}

Then,

Since 105 degrees is the 2nd quadrant so cosine is negative

Then,

By the formula:

\begin{gathered} cos(105^{\circ})=cos(\frac{210^{\circ}}{2}) \\ =-\sqrt{\frac{1+cos(210)}{2}} \end{gathered}

Then,

Put the value of cos210 degrees into the above function:

So,

\begin{gathered} cos(105^{\circ})=-\sqrt{\frac{1+cos(210)}{2}} \\ cos(105^{\operatorname{\circ}})=-\sqrt{\frac{1-\frac{\sqrt{3}}{2}}{2}} \\ cos(105^{\circ})=-\sqrt{\frac{2-\sqrt{3}}{4}} \\ cos(105^{\circ})=-\frac{\sqrt{2-\sqrt{3}}}{2} \end{gathered}

Final answer:

Hence, the value of the cos(105) is shown below:

cos(105^{\operatorname{\circ}})=-\frac{\sqrt{2-\sqrt{3}}}{2}

4 0
1 year ago
If two line segments have the same length, which of the following must be
Amanda [17]

Answer:

they share an endpoint.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it?
    8·2 answers
  • A quality control officer randomly checking weights of pumpkin seed bags being filled by an automatic filling machine. Each bag
    6·2 answers
  • What should be done to solve the following equation d - 8 equals 9
    11·2 answers
  • <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%7B2%7D%5E%7Bx%7D%20%20%20%2B%203" id="TexFormula1" title="f(x) = {2}^{x} +
    12·1 answer
  • A cyclist travels at an average speed of 11mph for 3 hours. how far did she travel in miles
    5·2 answers
  • Mark bought a new car and wanted to see the accuracy of the highway and city mileage. He recorded the average mpg for nine diffe
    8·2 answers
  • Irene buys a talking doll for $10.66 and
    14·2 answers
  • WILL GIVE BRAINLIEST. If 3x+5y=13 and 6x+7y=20, find the value of y/x
    15·2 answers
  • Hey! There is a link and I need help with these 3 problems for math. Pls give me awnsers and I will mark brainlist, have a good
    10·2 answers
  • 3x^2-17x- 20 and 100=3x^2-17x-20 needed to simplify and find the X if its equal to 100
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!