Trent wants a MEAN grade of 90% or better on his mathematics test. His test grades so far are 85%, 88%, 92%, and 90%. What is the lowest grade he can get on his next test and still have a mean grade of 90%?

Answers

Answer 1

Answer:

95%

Step-by-step explanation:

Current MEAN = 85 + 88 + 92 + 90/4 = 88.75 %

Lets assume needed score is 92%

Mean with assume needed score: 85 + 88 + 92 + 90 + 92/5 = 89.4%

Lets assume needed score is 93%

Mean with assume needed score: 85 + 88 + 92 + 90 + 93/5 = 89.6%

Lets assume needed score is 94%

Mean with assume needed score: 85 + 88 + 92 + 90 + 94/5 = 89.8%

Lets assume needed score is 95%

Mean with assume needed score: 85 + 88 + 92 + 90 + 95/5 = 90%


Related Questions

Need help on angles of polygons please

Answers

Answer:

x+87+92+105+135=540(sum of interior angle of pentagon)

x+419=540

x=540-419

x=121

Step-by-step explanation:

I don’t know the answer

Answers

Answer:

3 is the answer

Step-by-step explanation:

Mark brainliest

WILL MAKE BRAINLIEST

Answers

Answer:

75 vitamins = 18 dollars

Step-by-step explanation:

25 vitamins are equal 6 dollars

Answer:

$311.25

Step-by-step explanation:

Hope its right!   50/$12 divided by 6 = 2/$8.3 divided by 2 = 1/$4.15

1/$4.15 x 75 = 75/$311.25  I hope this is right if not im so sorry!

Please explain how you got he answer no links please :)

Answers

Answer:

4 is the gradient

Step-by-step explanation:

choose any two coordinate then apply the gradient equation

10-2= 8

3-1= 2

8/2= 4

4 is the gradient

What is the area of a rectangle which has a perimeter of 60 m and a width of 10 m?

Answers

Answer:

200

Step-by-step explanation:

please mark as brainliest if correct

thank you

Find the projection of u onto v
URGENT HELP

Answers

Given:

Two vectors are:

[tex]u=\left <0,6\right>[/tex]

[tex]v=\left <2,17\right>[/tex]

To find:

The projection of u onto v.

Solution:

Magnitude of a vector [tex]v=\left <a,b\right>[/tex] is:

[tex]|v|=\sqrt{a^2+b^2}[/tex]

Dot product of two vector [tex]v_1=\left <a_1,b_1\right>[/tex] and [tex]v_2=\left <a_2,b_2\right>[/tex] is:

[tex]v_1\cdot v_2=a_1a_2+b_1b_2[/tex]

Formula for projection of u onto v is:

[tex]Proj_vu=\dfrac{u\cdot v}{|v|^2}v[/tex]

[tex]Proj_vu=\dfrac{\left <0,6\right>\cdot \left <2,17\right>}{(\sqrt{2^2+17^2)^2}}\left <2,17\right>[/tex]

[tex]Proj_vu=\dfrac{0\cdot 2+6\cdot 17}{4+289}\left <2,17\right>[/tex]

[tex]Proj_vu=\dfrac{0+102}{293}\left <2,17\right>[/tex]

On further simplification, we get

[tex]Proj_vu=\dfrac{102}{293}\left <2,17\right>[/tex]

[tex]Proj_vu=\left <\dfrac{102}{293}\cdot 2,\dfrac{102}{293}\cdot 17\right>[/tex]

[tex]Proj_vu=\left <\dfrac{204}{293},\dfrac{1734}{293}\right>[/tex]

Therefore, the projection of u onto v is [tex]Proj_vu=\left <\dfrac{204}{293},\dfrac{1734}{293}\right>[/tex].

IXL Q.12 PLS HELP I HAVE BEEN STUCK ON THIS ONE FOR SOME TIME.

Answers

Answer:

m∠1 = 100°

Step-by-step explanation:

which is true about the table and the graph shown below?

Answers

Answer:

D) Neither the table nor the graph shows a proportional relationship

Step-by-step explanation:

We know the equation of the line:-

[tex]y-y_{1} =m(x-x_{1}) ~ m=slope[/tex]

[tex]m=\frac{y_{2}-y_{1} }{x_{2-} x_{1} }[/tex]

[tex](x_{1}y_{1})=(-1 ,-9)[/tex]

[tex](x_{2},y_{2} )=(1,-3)[/tex]

[tex]\frac{m=(-3)-(-9)}{1-(-1)} =\frac{-3+9}{1+1} =\frac{6}{2} =3[/tex]

[tex]m=3[/tex]

[tex]y-(-9)=3(x-1)[/tex]

[tex]y+9=3(x+1)[/tex]

[tex]y+9=3x+3[/tex]

[tex]y=3x-6 ~ or ~ y=3(x-2)[/tex]

so, your answer is D

»»————- ♔ ————-««

hope it helps..

have a great day!

Camille is packing moving boxes. She has one 4 cubic-foot box and one 7 cubic-foot box. How many cubic feet of clothing can she fit in the two boxes?

Answers

Answer:

He can fit 11 ft^3

Step-by-step explanation:

Here, we want to get the volume it clothes that could fit into the two boxes

What we have to do here is to add the amount of space each of the box has to offer

Mathematically, we have this as;

7 ft^3 + 4 ft^3 = 11 ft^3

it’s true or false, you can see the question in the pic. HELPP NOW PEASE !!

Answers

i think it's , true , false , false . the last one is kinda tricky

If a circumscribed angle is 82 degrees, what is the measure of the central angle that intercepts the same arc?
41 degrees
98 degrees
82 degrees
164 degrees

Answers

41 degrees ................................






Find the PERIMETER of the triangle below. Round your answer to the nearest tenth.

Answers

Hi how you doing? Be safe

Answer:

16.4 units

Step-by-step explanation:

Refer to the attached image, just find the hypotenuses of the three additional triangles, and add them up to become the perimeter of the yellow triangle.

Using Pythagoras Theorem:

Hypotenuse of the red triangle

[tex] = \sqrt{ {3}^{2} + {5}^{2} } [/tex]

[tex] = \sqrt{34} [/tex]

Hypotenuse of the blue triangle

[tex] = \sqrt{ {3}^{2} + {3}^{2} } [/tex]

[tex] = \sqrt{18} [/tex]

Hypotenuse of the green triangle

[tex] = \sqrt{ {2}^{2} + {6}^{2} } [/tex]

[tex] = \sqrt{40} [/tex]

The perimeter of the yellow triangle

[tex] = \sqrt{34} + \sqrt{18} + \sqrt{40} [/tex]

[tex] = 16.398...[/tex]

= 16.4 units

what is the answer f(t)=40(1.18)^t

Answers

Answer:

18% if it is the rate of change.

0 if solved

Step-by-step explanation:

Sorry, but you need more information

PLS HELP ME

The height of a javelin after it has left the hand of the thrower can be modeled by the function h=3(4t-2)-t + 4), where h is the height of the javelin and t is the time in seconds. How long is the javelin in the air?

Answers

Answer:

3.5 seconds

Step-by-step explanation:

Given function:

h(t) = 3(4t - 2)(- t + 4)

The time the javelin is in the air is the difference of zero's of the function:

3(4t - 2)(- t + 4) = 0(4t - 2)(- t + 4)4t - 2 = 0 ⇒ t = 0.5-t + 4 = 0 ⇒ t = 4

Time in the air:

4 - 0.5 = 3.5 seconds

It is better visible on the graph

From the top of a building, the angle of elevation to the top of a nearby building is 28° and the angle of depressions to the bottom of the nearby building is 48°. The distance between the two buildings is 50m, as shown in the diagram below. What is the height of the taller building, to the nearest tenth of a metre?

Answers

Answer:

Step-by-step explanation:

The idea here is to find the value for x and y, then add them together. See the pic I attached below. We will solve for side x first.

Side s is across from the reference angle of 48 degrees; side measuring 50 m is adjacent to the reference angle 48 degrees. Therefore, we will use the tangent ratio to solve for x:

[tex]tan48=\frac{x}{50}[/tex] and

50tan(48) = x so

x = 55.53m

Now we will do the same and solve for y. This time the reference angle is 28 degrees. Side y is opposite the reference angle and the side measuring 50 is adjacent to the reference angle, so we will use the tangent ratio again:

[tex]tan28=\frac{y}{50}[/tex] and

50tan(28) = y so

y = 26.59. Therefore,

x + y = 55.53 + 26.59 and

the height of the taller building is

82.1 m

Which segment has the greatest frequency?

Answers

Answer:

The one that reached up to 8 on the graph.

Step-by-step explanation:

please answer fast help me i have thgis math problem

Answers

Answer:

[tex]x = 152[/tex]

because these angles are infront of each other

Answer:

x = 152

Step-by-step explanation:

x and 152° are vertical angles and are congruent , then

x = 152

Find the length of the third side. If necessary, round to the nearest tenth.2 5

Answers

Answer:

b= 4.6

Step-by-step explanation:

use the pythagorean theorem.

Answer:

4.6

Step-by-step explanation:

Need help I don’t understand

Answers

R= 15

25 + R = 40
-25 -25
___________
R = 40 - 25
R = 15

You have to isolate your variable (the letter in a mathematical equation) by combining similar terms (all real numbers should go together and all variables should go with like variables [R’s go together]). And remover that what you do to one side you have to do to the other.

What is the volume?
(*I wrote the numbers out just in case you couldn't see them.)

Answers

Answer:

I believe the volume is 540cm

Step-by-step explanation:

To find the volume of a rectangular prism, all you really need to do is multiply the length x width x height (LxWxH)

For this shape it's just:

9(L)*12(W)=108

108*5(H)=540

Answer:

the volume should be 58320

Step-by-step explanation:

12 x 9 x 12 x 5 x 9 = 58320

sorry if I'm wrong

50 pts , i need the correct answer, my patient is gone because so many ppl put fake answers, just give the right answer i dont have the energy to even say pls anymore.

Answers

Answer:

Hello! Sorry about your luck before although im 99% sure my answer is correct.

Answer: area is 180

Step-by-step explanation:

Ok so first starting off im going to calculate the area for each shape serperately and add them up since thats easier so as demonstrated in the picture the rectangle is 25 because i multiply by base × height and the base and height is 5 and 5 pointed in the picture so thats 25 although i didnt calculate the rest because the base and height is the same for each so we can just do 25 × 6 to get all the rectangles so 25 × 6 = 150 now we got the easy part out of the way now we should do the triangles I pointed to the base and height for that on the left the base being 5 and the height being 3 5 × 3 = 15 BUT WAIT this isn't are area for the triangles because when finding area for triangles we have to divide by 2 so... 15 ÷ 2 = 7.5 since there are 4 of those triangles I dont have to solve for the rest because i can just do 7.5 × 4 so...

7.5 × 4 = 30 now we just combine those areas together! so... 150 + 30 = 180 so 180 is our area HOPE THAT HELPS!


[tex]i \: need \: help \: \\ \\ (a \: + \: b) {}^{2} = {?} [/tex]

Answers

Answer:

I hope this helps you :)...

Answer:

(

[tex] {a}^{2} + 2ab + {b}^{2} [/tex]

Step-by-step explanation:

(a+b)²

=(a+b)(a+b)

=a(a+b)+b(a+b)

=a²+2ab+b²

At an automobile dealership, 2 out of every 12 cars sold are red. Which is the best prediction of the number of red cars sold when the automobile dealer sells 150 cars?

Answers

Answer:

25

Step-by-step explanation:

2 out of 12 means also 1 out of 6.

so, a ratio of 1:6 or a factor of 1/6.

150 × 1/6 = 150 / 6 = 25

so, we expect that out of the 150 sold cars 25 have been red.

Use special product patterns to find the product.

16 x 24

Answers

Answer:

4

[tex]4 ^{2} \times \sqrt[2]{6} [/tex]

square root 16 is 4^2

same as 24 is 2/6

The requires answer for 16 x 24 by using special product patterns is 384.

What is special product pattern?

A special product is a product of two binomials that hold a predictable pattern.

Now the given expression is,

16 x 24

Now both the terms can be written as,

16 = (20 - 4)

24 = (20 + 4)

Therefore we get,

16 x 24 =  (20 - 4) x (20 + 4)

since,

a² - b² = (a + b) (a - b)

⇒ (20 - 4) x (20 + 4) = 20² - 4²

∴ 6 x 24 = = 20² - 4²

⇒ 6 x 24 = 400 - 16

⇒ 6 x 24 = 384

Thus, the requires answer for 16 x 24 by using special product patterns is 384.

To learn more about special product:

https://brainly.com/question/2241589

#SPJ2

Please help with this one question that I've been stuck on!!! In a random sample of 74 homeowners in a city, 22 homeowners said they would support a ban on non natural lawn fertilizers to protect fish in the local water ways. The sampling method had a margin of error of ±3.1%. SHOW ALL WORK!
A) Find the point estimate.
B) Find the lower and upper limits and state the interval.
Please show your work & how you got your answer!

Answers

Anders Celsius (Swedish pronunciation: [ˌanːdəʂ ˈsɛlːsiɵs], 27 November 1701 – 25 April 1744) was a Swedish astronomer, physicist and mathematician. He was professor of astronomy at Uppsala University from 1730 to 1744, but traveled from 1732 to 1735 visiting notable observatories in Germany, Italy and France. He founded the Uppsala Astronomical Observatory in 1741, and in 1742 proposed (an inverted form of) the Centigrade temperature scale which was later renamed Celsius in his honor.

Romeo and Juliet is a tragedy written by William Shakespeare early in his career about two young Italian star-crossed lovers whose deaths ultimately reconcile their feuding families. It was among Shakespeare's most popular plays during his lifetime and, along with Hamlet, is one of his most frequently performed plays.

Kevin open to saving account with $1400 that pays no interest he deposit additional $170 each week write a recursive formula to show how much money Kevin has in his account n weeks after opening the account

Answers

Answer:

Amount in account of Kevin after [tex]n[/tex] weeks is equal to [tex]\$(1400+170n)[/tex]

Step-by-step explanation:

Initial amount in the savings account [tex]=\$1400[/tex]

Amount deposited each week by Kevin [tex]=\$170[/tex]

Amount deposited by Kevin in [tex]n[/tex] weeks [tex]=\$170n[/tex]

Therefore,

Amount in account of Kevin after [tex]n[/tex] weeks [tex]=[/tex] Initial amount in the savings account [tex]+[/tex] Amount deposited by Kevin in [tex]n[/tex] weeks

[tex]=\$(1400+170n)[/tex]

PLZ HELP PLZ PLZ ILL MARK AS BRAINLIESTT!!

Answers

Answer:

.3 feet

Step-by-step explanation:

3.8 - 3.5 = .3

Consider the equation:
3+2 = 22 +30
1) Rewrite the equation by completing the square.
Your equation should look like (x + c)2 = d or (x – c)2 = d.

2) What are the solutions to the equation?
Choose 1 answer:
A
x = 1+2
B
x = -1/2
C = 12
D
2 = -1+2

Answers

Answer:

3+2 = 22 +30=  59 1/2

(x + c)2 = d or (x – c)2 = d. = (c * d)(x) = 4x^3 + 18x^2 - 10x

X=1+2

Step-by-step explanation:

sorry if wrong was every confused

select three side lengths in centimeters that can form a right triangle 5cm 6cm 8cm 10cm 12cm

Answers

Answer:

10cm

Step-by-step explanation:

TV and WY are parallel lines, which angles are supplementary angles?

Answers

Answer:

∠WXU & ∠WXZ

Step-by-step explanation:

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