Mathematics High School

A student must have an average​ (the mean) on five tests that is greater than or equal to​ 80% but less than​ 90% to receive a final grade of B.​ Devon's grades on the first four tests were ​77%, ​63%, ​90%, and ​78%. What range of grades on the fifth test would give him a B in the​ course? (Assume that​ 100% is the highest grade​ possible.)

Answers

Answer 1

Answer:

92%-100% for B

Step-by-step explanation:

Answer 2

Answer: 92%-100% for B

Step-by-step explanation:

Related Questions

This graph shows which inequality?


d > 5

d ≥ 5

d ≤ 5

d < 5

Answers

Answer:

d > 5

Step-by-step explanation:

The circle is open which means there is no line underneath the sign, the way the arrow is facing is the same way the sign should be facing.

please help!!! Im very confused, giving brainleist

Answers

Answer:

For the boys box, the answer is 8.

For the Girls top box the answer is 18.

Step-by-step explanation:

81/ 72=1.125

9/ 8=1.125

18/16=1.125

Hope this helps! :)

A 5-pint bottle of oil costs $9.20. What is the unit price for 1 pint of oil?

Answers

Answer:

$3.20, help this helps. lmk if it doesn't help

Answer:

$1.84

why do I have to write 20 characters

Rewrite the function f(x)=4(x-2)²-8 in the form f(x)=ax²+bx+c.

Answers

Answer:

4[tex]x^{2}[/tex]-16x+8

Step-by-step explanation:

4(x - 2)(x - 2) - 8 = 4([tex]x^{2}[/tex] - 4x + 4) - 8 = 4[tex]x^{2}[/tex] - 16x + 16 - 8 = 4[tex]x^{2}[/tex] - 16x + 8.

Answer:

[tex]f(x) = 4x^2 -16x + 16[/tex]

Step-by-step explanation:

f(x)=4(x-2)² Simplify.

f(x) = 4x^2 - 16x + 16

Form f(x)=ax²+bx+c.

f(x) = 4x^2 - 16x + 16

What’s the value of x

Answers

Answer:

C: X = 42

Step-by-step explanation:

Find each part to the triangle first

X = 42 so that is ur answer

Find the slopes form two points (1, -2) and (3,-4)

Answers

Answer:

y=-x-1

Step-by-step explanation:

if points are (-1,-2) and (3,-4)

Answer:

slope intercept form:  y = -1/2x - 5/2  or  y = -0.5x - 2.5

Which triangle makes this statement true?

Answers

Answer:

D

Step-by-step explanation:

they need the same angle measures and side lengths to be congruent. also you need to line up the angles of the same measure in each triangle in the name

Answer: D

Step-by-step explanation:

Sally puts $2,500 in a bank account. She takes it out 10 years later and with interest, now has $4,100. What is the percent change?

Answers

Answer:

64%

Step-by-step explanation:

Find the percent change by finding the difference between the amounts, then dividing it by the original amount

(4,100 - 2,500) / 2,500

1600 / 2500

= 0.64

So, the percent change is 64%

ohh plz help me i really could use it

Answers

Answer:

c

Step-by-step explanation:

Hi you can answer this it is difficult for me​

Answers

9514 1404 393

Answer:

  see attachments

Step-by-step explanation:

a) A table lists the ordered pairs either by row or by column. In the attached, we have listed the x-values down a column, and the y-values the same way. (This way, we can use the same list for the map.) The table is the first attachment.

__

b) A graph is simply a plot of the given points. The graph is the second attachment.

__

c) A map is similar to a table, but with arrows pointing to the output value for a given input. The map is the third attachment.

simplify the following expression by combining like terms. select the most simplified Expression 2 W + 5 W - 6 + 4w ​

Answers

Answer:

11w-6

Step-by-step explanation

2w+5w-6+4w=7w+4w-6=11w-6

HELP!!! Please I have a timer

Answers

The probability on club is 1 in 7. It is higher than expected

from 45 quarts to 8 quarts​

Answers

Answer:

well the answer would be 37 but I dunno what u mean by that.

Step-by-step explanation:

if this is right please mark brainliest

Answer:

you are -ing 37 quarts from 45

Step-by-step explanation:

GCF factoring introduction
Which expression is the result of factoring the expression below by taking out its greatest common factor?
16x^2-8x=?

Answers

right hell yeah you come to me alright (we gon be alright)
it also equals 3032

How to solve and answer please.

Answers

Answer:

sin 77°

cos 49°

tan 22°

Step-by-step explanation:

use your calculator with trig functions to find the arcsin, arccos, and arctan

can someone help me please?

Answers

Answer:

a. 120 degrees

b. 240 degrees

c. 24π

d. 8π

e. 16π

f. 144π

g. 48π

please help i feel like im dying i will give out brainliest and points thank you

Answers

Answer:

I feel like the answer would be 10

Step-by-step explanation:

because if its same size it would be 14 but then u add the 2 to 2x u get 4 then x is the rest of 14 I'm farely sure if someone else can verify this then this is the answer

PLEASE HELP QUICK!! I am very confused and I don't understand this at all any help will be appreciated right answers will be marked brainliest :)!! Your project must have your name, title, a PRE-IMAGE, Reflection over the y-axis, and a Translation of (x+15, y-20)
50 POINTS!!

Answers

Answer:

you need to explain more of what you are wanting me to do befor I can answer this question

trigonometry help me for 25 points plz

Answers

Answer:

46

Step-by-step explanation:

Segment WX = 23 by the 30 60 90 triangle theorem which states that the longer leg is sqrt3 times the length of the shorter leg.

Segment XY = 26 by the 30 60 90 triangle theorem that states the hypotenuse is twice the length of the shorter leg

The answers..............................

Answers

The answer is A and D your welcome :)
A and d that easy my guy

help please .........

Answers

Answer: .

Step-by-step explanation:

The table below represents a function. Which of the following equations could be its function rule?

Answers

Answer:

it's the 3rd choice, Y= -3x

Which method
HL
Asa
Sas
Sss
Aas pls help

Answers

Answer:

Step-by-step explanation:

ASA because you have the given angles and sides ≅ and the vertical angles are also ≅

Answer:

ASA

Step-by-step explanation:

Since you have already proved two pairs of consecutive angles and sides congruent, you can also prove vertical angles congruent.

2 ways that you can write 2%?

Answers

Answer:

2/100 and .02

Step-by-step explanation:

Answer:

0.02 and 2/100

Step-by-step explanation:

These two are some of the more simple ways to write 2%

1. Write the next three terms of the arithmetic sequence
1, 8, 15, 22, ...

Answers

Answer:

29,36,43

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

the numbers are being added by 7

1 + 7 = 8

8 + 7 = 15

and so on

The library started the yoar with 14,341 books. At the end of the first week
1456 books had been checked out. At the end of the second week 3,298
books had been checked out and 2,192 books had been returned. How many
books were in the library at the end of the second week?

Answers

Answer:

the answer is 11788 :) your welcome

what is (14x - 2) - (11x -21) ​

Answers

Answer:

3x + 19

I don't have time to explain but I hope I helped :)

Find an answer to your question Using the triangle drawn below, determine the exact value of y. 45° trigonometry !

Answers

Step-by-step explanation:

hope this helps you

thank you

I need help.................

Answers

Answer:

-33 and -21

Step-by-step explanation:

-36, -33, -30, -27, -24, -21, -18

-36

-36 + 3 = -33

-33 + 3 = -30

-30 + 3 = -27

-27 + 3 = -24

-24 + 3 = -21

-21 + 3 = -18

What percent of 120 is 42?
can you show your work, please

Answers

Solution for 42 is what percent of 120:

42:120*100 =

(42*100):120 =

4200:120 = 35

Now we have: 42 is what percent of 120 = 35

Question: 42 is what percent of 120?

Percentage solution with steps:

Step 1: We make the assumption that 120 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x​.

Step 3: From step 1, it follows that $100\%=120$100%=120​.

Step 4: In the same vein, $x\%=42$x%=42​.

Step 5: This gives us a pair of simple equations:

$100\%=120(1)$100%=120(1)​.

$x\%=42(2)$x%=42(2)​.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{120}{42}$
100%
x%​=
120
42​​

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{42}{120}$
x%
100%​=
42
120​​

$\Rightarrow x=35\%$⇒x=35%​

Therefore, $42$42​ is $35\%$35%​ of $120$120​.
It’s 35%

42/120 = 0.35

0.35 x 100 = 35%
Other Questions
F(t) 2t-3F(7)=?What does f(7) equal? who is the first president in the world Wave able to travel through only through solids, moves in a side to side orup down motion, slow P-waveQ -waveR-waveS-wave answer this quick please Negative feedback:If oxygen levels are low,then respiration should A. Increase B. Decrease Will give brainliest to correct answer of this picture: I will give brainiest to whoever answers right PLEASE please help quick!! pythagorean theorem! I need help with geometry Select the correct answer.Identify the axis of symmetry of the function graphed below.A. X=1B. X=3C. X=5D. X=4 Which statement best describes how the compare-and-contrast pattern of thetext supports the author's purpose?A. The passage begins by describing the benefits of plastic and endsby comparing these benefits with the benefits of aluminum.O B. The passage begins by listing all the benefits of plastic andaluminum and ends by listing all the weaknesses of the twomaterials.C. The passage begins by describing the disadvantages of plasticand ends by explaining how aluminum has many advantages overplastic.D. The passage begins by describing the advantages of aluminumand ends by contrasting these with the disadvantages of plastic.Km what is the difference of 3 1/4 and 15/16. How do Trump's actions threaten the separation of powers ? True or FalseIn Britain, the new middle class began assuming morepolitical power. Which statement is true about the polynomial 5s^6t^2 + 6st^2 - 8s^6t^2 - 6t^7 after it has been fully simplified? Lucy is building a fence for her pigpen that that the pigs cannot escape. The area of the rectangular pigpen is 96 sq ft. The length of the pigpen measures 12 ft. What is the width,in feet? Newton's law of cooling states that the temperature of an object changes at a rate proportional to the difference between its temperature and that of its surroundings. Suppose that the temperature of a cup of coffee obeys Newton's law of cooling. Let k>0 be the constant of proportionality. Assume the coffee has a temperature of 200 degrees Fahrenheit when freshly poured, and 11 minutes later has cooled to 190 degrees in a room at 62 degrees.Required:a. Write an initial value problem for the temperature T of the coffee, in Fahrenheit, at time t in minutes.b. Solve the initial value problem in part (a). Solve for h in this right triangle. Show all steps and round your answer to the nearest hundredth. Please help me Im very confused!!!!!!!!! what does r = !!!!!!!!!!!!!