Help pleaseeeeee the options are 21,8,28,36,39,14,2,37
So the answer has to be one of those

The score which Lisa should get in her fourth exam of school to get exactly 80% in the course is 64.

The average of the group of numbers is the ratio of the sum of all the numbers of the group to the total number of the group.

Lisa is currently taking physics as one of her electives in school.

Her grade at the end of the year is determined by the average of four exams, each worth 100 points.

She got exactly 80% in the course. Let she scores x marks in her fourth exam. Thus,

[tex]\dfrac{84+92+80+x}{4}=80\\256+x=80\times4\\x=320-256\\x=64[/tex]

Hence, the score which Lisa should get in her fourth exam of school to get exactly 80% in the course is 64.

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Answer:

Answer D (.22)

Step-by-step explanation:

If Brainly would stop deleting my answer, your answer is D (.22).

Answer:

Consumer rights and consumer protection law provides a way for individuals to fight back against abusive business practices. These laws are designed to hold sellers of goods and services accountable when they seek to profit by taking advantage of a consumer's lack of information or bargaining power.

Step-by-step explanation:

Individuals can use consumer rights and consumer protection laws to fight back against unfair company practices.

Consumer rights refer to a corpus of legislation that governs what manufacturers of goods must do to safeguard their consumers from damage.

These statutes arose from a succession of court battles, and they have been influenced by the outcomes of those battles.

These rules are intended to hold retailers and service providers responsible when they seek to benefit from a consumer's lack of knowledge or bargaining power.

More about the consumer rights link is given below.

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Answer:

im not 100% sure but i think its 24lbs of grass seed

Step-by-step explanation:

6 devided by 399 squared=0.0000376882

0.0000376882 x 6384=0.24060150375

0.24060150375 x 100=

24 lbs to cover a area of 6384 square feet

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

As we can see in the given figure, The two triangles are congruent to each other by many criterias, so we can infer that Their corresponding sides are of equal length.

That is :

[tex]\qquad \tt \dashrightarrow \:2x + 5 = 13[/tex]

[tex]\qquad \tt \dashrightarrow \:2x = 13 - 5[/tex]

[tex]\qquad \tt \dashrightarrow \:2x = 8[/tex]

[tex]\qquad \tt \dashrightarrow \:x = 8 \div 2[/tex]

[tex]\qquad \tt \dashrightarrow \:x = 4[/tex]

Therefore, value of x is 4

Answer:

x = 4

Step-by-step explanation:

the point here is congruent triangles.

according to the image,

2x + 5 = 13 <---- subtract constants

2x = 13 - 5 = 8 <--- finalize

2x = 8 <----------- divide both sides by 2

2x / 2 = 8 / 2 <-- finalize

x = 4 <--- answer

Answer:D V=2(r)(h)

Step-by-step explanation:

because al the other answers are incorrect

Answer:

648000 times/hr

Step-by-step explanation:

6.48 * 10^5
Move the decimal 5 times to the right.
The answer you should get is 648000 times per hour.

Answer:

You factor that equation by seeing if you can take out anything. Example.

20 is the same as 2 times 2 times 5. Visualized, it is 2(10) or 4(5).

For this, you can take out the "2"

So it would be

2(x^2+1)

x^2+1 can't be factored so that is the final answer

Answer:

Its c!

Step-by-step explanation:

Answer:

Step-by-step explanation:

c

I'm not sure what the answer is but read some books and study also I believe relaxing music helps with homework struggles

D

W = Z + 6

W + z = 30

WZ = 30

Answer:

21/8 or 2 5/8

Step-by-step explanation:

7/2 miles is equal to 3 1/2 mile trail, or also a 3 2/4 mile trail. You then multiply 3 2/4 and 3/4 and get 2 5/8 or 21/8.

The number of apples that are red is 50

From the question, we are to determine the number of apples that are red

From the given information,

The ratio of red apples to green apples is 5:2

∴ Sum of ratio = 5+2 = 7
and

Total number of apples in the basket = 70 apples

Then, the number of apples that are red is

[tex]\frac{5}{7} \times 70[/tex] apples

= 5 × 10

= 50 apples

Hence, the number of apples that are red is 50

Learn more on Caluculating ratios here: https://brainly.com/question/9477681

The linear cost function of the computer shop in this scenario will be C(x) = 649x + 1500.

From the information, the linear cost function is C(x) = 649x + 1500 and the linear revenue function will be R(x) = 899x.

The cost of selling 37 computers will be:

C(x) = 649x + 1500

C(x) = 649(37) + 1500

C = 25513

The revenue from selling 37 computers will be:

R(x) = 899x.

R = 899(37)

R = 33263

The breakeven point will be:

649x + 1500 = 899x

899x - 649x = 1500.

250x = 1500

x = 1500/250

x = 6

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Answer:

The answer is -5

Step-by-step explanation:

Hope it helps

Answer:

Step-by-step explanation:

Like terms have same variable with same power. Combine the like terms. Add / subtract the coeffiecient of the like terms.

9x² and 9x² are like terms

-8 and 3 are like terms.

9x² - 8 + 9x² + 9x + 3 = 9x² + 9x² +9x - 8 + 3

                                   = 18x² + 9x - 5

Answer:

9(3+5)

Step-by-step explanation:

GCF is 9, because thats the highest common number that both numbers can be divided by.

27/9 = 3

45/9 = 5

so,

9(3+5)

Answer:

The points A,B, and C are collinear, so both segments AB and AC form one straight line.

Since segments AB and AC have a common point A so they form an angle BAC

Answer:

x is 5

Step-by-step explanation:

Answer:

Step-by-step explanation:

In the question we're given with an equation that is 5(x - 4) + 12 = 17 and we are asked to find the value of x .

Solution : -

[tex] \longmapsto \: 5(x - 4) + 12 = 17[/tex]

Step 1 : Solving parenthesis :

[tex] \longmapsto \:5x - 20 + 12 = 17[/tex]

Step 2 : Adding 20 on both sides :

[tex] \longmapsto \:5x - \cancel{20 }+ 12 + \cancel{20 }= 17 + 20[/tex]

[tex] \longmapsto \:5x + 12 = 37[/tex]

Step 3 : Subtracting 12 from both sides :

[tex] \ \longmapsto \: \:5x + \cancel{ 12} - \cancel{12} = 37 - 12[/tex]

[tex] \longmapsto \:5x = 25[/tex]

Step 3 : Dividing by 5 on both sides :

[tex] \longmapsto \: \frac{ \cancel{5}x}{ \cancel{5} } = \cancel\frac{25}{5} [/tex]

[tex] \longmapsto \: \red{ \boxed{\bold{x = 5}}}[/tex]

Verifying :

We are verifying our answer by substituting value of x in Given Equation :

Therefore , our value for x is correct .

26

Step-by-step explanation:

Mode is a number or data in a set of data values with the highest frequency( the amount of times it appears)

Since 26 appears twice while others appear once, 26 is the mode

Answer:

our fraction is 75.438596491228/100, which means that 43/57 as a percentage is 75.4386%.

Step-by-step explanation:

Answer:

75%

Step-by-step explanation:

To convert a fraction to a percentage, multiply the fraction or result by 100. [tex](\frac{43}{57})*100 = 75.44%[/tex] = 75%

*note that 75.44 is rounded, the original number is longer.

Answer:

150-179 minutes

Step-by-step explanation:

The most common interval (the tallest graph) of minutes students spent watching watching TV?

The correct answer should be 150-179 minutes because it's the most common, meaning that a lot of students spent 150-179 minutes watching TV.

Hope this helps!

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

As per the given graph we can observe the number of students which watched TV for certain intervals.

According to question, we have to find the common interval of minutes students spent watching TV~

That means : we have to find the time interval in which most of the students prefer to watch TV ~

Hence, the most common interval is :

[tex]\qquad \tt \dashrightarrow \:150 - 179 \: \: \: minutes[/tex]

The number of combinations with repetition that are allowed if n = 4 and r = 3 is given by: Option A: 20

The number of  k-element combinations of n objects, with repetition is:

[tex]\overline{C}_{n,k} = \: ^{n + k-1}C_{k} = \dfrac{(n+k-1)!}{k! \times (n-1)!}[/tex]

For this case, we're given that:

Thus, we get:

[tex]\overline{C}_{n,k} = \dfrac{(n+k-1)!}{k! \times (n-1)!} = \dfrac{(4+3-1)!}{3! \times (4-1)!} \\\\\overline{C}_{n,k} = \dfrac{6!}{3!. 3!} = 20[/tex]

Thus, the number of combinations with repetition that are allowed if n = 4 and r = 3 is given by: Option A: 20

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Answer:

A. 28.27 ft^2

Step-by-step explanation:

You're looking for the area of the circle.
Area of circle = [tex]\pi r^{2}[/tex]
[tex]\pi (3)^{2}[/tex]
= 28.27 ft^2

Answer:

Step-by-step explanation:

To solve for n, isolate it on one side of the equation.

First, you have to subtract by 2 from both sides.

[tex]\Longrightarrow: \sf{3n+2-2=8-2}[/tex]

Solve.

Subtract the numbers from left to right.

[tex]\sf{8-2=6}[/tex]

Rewrite the problem.

⇒ 3n=6

Divide by 3 from both sides.

→ 3n/3=6/3

Solve.

Divide the numbers from left to right.

→ 6/3=2

[tex]\Longrightarrow: \boxed{\sf{n=2}}[/tex]

I hope this helps! Let me know if you have any questions.

Answer:

n = 2    or....    n is 2

Step-by-step explanation:

When simplifying to find n, we do something to one side, but it also must be done to the other side. First, to get n alone, we would subtract 2. When doing this, we do it for both sides:

3n + 2 = 8

   -2       -2

3n = 6

Now, we divide n by 3 becuase right now it says 3 times n. We again do the same for both sides:

3n = 6

/3    /3

n = 2

So the answer is n = 2

n is 2.

The function which has zeros at x = 10 and x = 2 is [tex]\rm f(x)=x^2-12x+20[/tex].

The zero of a function is any replacement for the variable that will produce an answer of zero.

Graphically, the real zero of a function is where the function's graph crosses the x-axis; that is, the real zero of a function is the x-intercept (s) of the function's graph.

The function which has zeros at x = 10 and x = 2 is;

[tex]\rm f(x)=(x-10)(x-2)\\\\f(x)=x(x-2)-10(x-2)\\\\f(x)= x^2-2x-10x+20\\\\f(x)=x^2-12x+20[/tex]

Hence, the function which has zeros at x = 10 and x = 2 is [tex]\rm f(x)=x^2-12x+20[/tex].

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Answer: A. f(x) = x^2 – 12x + 20

right on edge 2023 :)

The Answer (maybe) :

Hello! good morning or night where ever you are.
I'm here to help with your question :)
I believe the answer is 9600

Step-by-step explanation:

[tex]75/100[/tex] [tex]x =[/tex] [tex]7200[/tex]

[tex]0.75[/tex] [tex]x = 7200[/tex]

[tex]x =[/tex] [tex]7200/0.75[/tex]

[tex]x =[/tex] [tex]9600.[/tex]
The previous price before the discount = 9600 pounds.

Checking:

[tex]25%[/tex]% [tex]of[/tex] [tex]9600[/tex]: [tex]2400[/tex]
[tex]9600 -[/tex][tex]2400=7200[/tex]

Answer/ Writer's note: I'm truly sorry if this incorrect :(

Signed - [tex]Lilo[/tex]