I don't get this. Please help and I'll mark brainiest

I Don't Get This. Please Help And I'll Mark Brainiest

Answers

Answer 1

Answer:

A. 10 points

Step-by-step explanation:

The average test score for studying 3 hours is 75, while the average test score for studying 4 hours is 85. Therefore the average rate of increase of test scores between 3 and 4 hours studied is 10 points, since 85-75=10.


Related Questions

What is the value of x in3 √ x 9?

Answers

In the given equation x = 9 is the value that satisfies the equation.

What are Square root?

The square root of a number is a value that, when multiplied by itself, equals the original number. For example, the square root of 9 is 3, because [tex]3*3 = 9[/tex]. The symbol for square root is "√" and it can also be represented as "sqrt".

In the given equation [tex]x = 9[/tex] is the value that satisfies the equation.

To find the value of x in the equation [tex]3 \sqrt{x} = 9[/tex], we first need to square both sides of the equation to eliminate the square root.

[tex]3 \sqrt{x} = 9[/tex]

Squaring both sides:

[tex](3 \sqrt{x} )^2 = 9^2[/tex]

[tex]x = 9^2 / 3^2 = 9^2 / 9 = 9[/tex]

Therefore, x = 9 is the value that satisfies the equation.

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Complete the square to write each equation in vertex form. Then, state whether the vertex is a minimum or a maximum and give its coordinates.

Answers

Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

• If a > 0 then vertex is a minimum

• If a < 0 then vertex is a maximum

Given

y  x² - 8x + 14

(a)

To complete the square

add/ subtract ( half the coefficient of the x- term)² to x² - 8x

y = x² + 2(- 4)x + 16 - 16 + 14

y = (x - 4)² - 2 ← in vertex form

(b)

Since the multiplier a = 1 > 0 then vertex is a minimum

(c)

(h , k ) = (4, - 2 ) ← coordinates of vertex

 

Look at image to answer

Answers

1350000 because 20x15 and 30x15

Answer:135000 ft^2

Step-by-step explanation:

which is 9% written as a decimal A) 0.009 B) 0.09 C) 0.9 D) 9.0 E) 90.0

Answers

Answer:

B.

Step-by-step explanation:

I used the percent button on my calculator. :)

Hope this helps

Find A in degrees. Round to the nearest tenth.
a=7
b=4
c=8

A=[?]°​

Answers

Answer:

61 degrees.

Step-by-step explanation:

Use the law of cosine.

In this case, the law of cosine is:

7^2=4^2+8^2-2(4)(8)cos a

Meaning:

7^2-4^2-8^2/-2(4)(8)=.434

Then do the inverse cosine of .434, and it will equal to 61.02

Round to the nearest tenth and you'll get A= 61 degrees.

Answer: 61 degrees

Step-by-step explanation:

7^2=4^2+8^2-2(4)(8)cos a

7^2-4^2-8^2/-2(4)(8)=.434

Then do the inverse cosine of .434, and it will equal to 61.02

Round to the nearest tenth and you'll get A= 61 degrees.

Personal Finance
Which of these is an economic good?
a motel room
camping in a cave
fresh air
water from a spring

Answers

Answer:

Fresh air

Step-by-step explanation:

A recipe calls for 2 ½ cups of flour to bake 12 cookies. If each person eats 1 cookie, and Elizabeth needs to serve 44 people, how many cups of flour will Elizabeth need to bake the cookies?

Answers

44 divided by twelve is four so you have to times 2. 1/2 by four so you will have enough so the answer is 10 cups of flour

Please help?!!!¡¡!!!

Answers

Answer:

Option B, [tex]\sqrt[6]{\frac{x}{4} }[/tex]

Hope this helps!

The answer is B to you problem

Question 10 options:
Which is not a property of a parallelogram?
A) All sides are congruent. B) Diagonals are perpendicular bisectors of each other. C) Opposite angles are congruent. D) Diagonals are congruent.

Answers

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length. All angles are congruent, and the diagonals bisect each other and are congruent. It does not, however, have the property that all angles are equal.

A parallelogram is a four-sided shape with two pairs of parallel lines. The opposite sides of the parallelogram must be congruent, meaning that they have the same length. All angles are congruent, which means that they all have the same measure. The diagonals of the parallelogram bisect each other, meaning that they divide each other into two equal parts, and they must also be congruent. All of these properties are true for a parallelogram, except that the angles do not have to be equal. The angles can be either acute, obtuse, or right angles, but they must all have the same measure. So, in conclusion, the property that is not true for a parallelogram is that all angles are equal.

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Simplify (s^-5)^3. Write your answer using only positive exponents.

Answers

The given expression (s⁻⁵)³ is equivalent to (1/s)¹⁵.

What is exponent?

Exponent is a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression. Mathematically -

[tex]$b^x = \underbrace{b \times \dots \times b}_{x \text{ times}}[/tex]

where -

[b] = base of the logarithm

[x] = exponent

Given is the expression as follows -

(s⁻⁵)³

We can write the expression as -

(s⁻⁵)³ = (1/s⁵)³ = (1/s¹⁵) = (1/s)¹⁵

Therefore, the given expression (s⁻⁵)³ is equivalent to (1/s)¹⁵.

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how many integer between 20 and 40 divisable by 3

Answers

Answer:

4 prime numbers all divisible by 3

Step-by-step explanation:

there are 4 prime numbers between 20 and 40 23, 29, 31, 37 all divisible by 3

Answer:

7 integers

Step-by-step explanation:

We can find how many integers between 20 and 40 are divisible by 3 by looking at the multiples of 3 that lie between 20 and 40.

1: 3 * 7 = 21

2: 3 * 8 =24

3: 3 * 9 = 27

4: 3 * 10 = 30

5: 3 * 11 = 33

6: 3 * 12 = 36

7: 3 * 13 = 39

Why are fossil fuels considered nonrenewable resources?

A.
They create pollution and people have to clean it up.

B.
They are found underground and must be processed.

C.
They cannot be found in nature and have to be made.

D.
They cannot be replaced as fast as they are being used.

Answers

Answer:

D They cannot be replaced as fast as they are being used

you are building a 3-foot tall chest. you want the volume to be 60 cubic feet. what should the area of the base be

Answers

Answer:

You want the area of the base to equal 20 ft^2

Step-by-step explanation:

Volume of a cube= (L)(w)(h)

Area of base = (L)(W)

60 cubic feet is the volume we are trying to acheive. Since the volume for a cube is (L)(w)(h), 3 needs to multiply by the area of the base to equal the volume. since 3 times 20 equals 60(You solve this by dividing 60 by 3) the base needs to equal 20ft^2.

help me plssss it’s due tonight

Answers

Answer:

Answer choice A

Step-by-step explanation:

This is the midpoint of both coordinates.

Oliver wants to buy a hat that has an original price of $25 . The store is having a 20% off sale on everything in the store. Question: With this discount, what is the final cost of the hat?

Answers

Answer:

$20

Step-by-step explanation:

There are a few ways to do this. We know 20% is 1/5 and 1/5 is 5 dollars. since that's the percent off, we would subtract it from 25.

For general percents off, they might not be so easy. It is important to know the method. We must multiply by the decimal of the percent, so

[tex]25 \times .20 = 5[/tex]

Now, since it is this amount off, we subtract 5 from 25.

[tex]25 - 5 = 20[/tex]

$20 is the final price of the hat!

hope this helps!

Solve the equation below on the interval [0, 2pi). Select ALL that apply.

cos^2x-1=0

A. 0
B. pi/2
C. pi
D. 2pi

Answers

D is the answer I hope it help

A school surveyed its
students about TV viewing. The average time
spent watching TV each
day was 3 hours. What
percent of 24 hours on
the average was spent
watching TV?

Answers

Answer:

12.5%

Step-by-step explanation:

What is the area of the shaded region in the inage below? Leave your anser in terms of pi

Answers

Answer:

182π

Step-by-step explanation:

Subtract areas of two smaller circles from the largest one

Area of largest circle (which has a diameter of 26+14, or 40) = 20²π or 400π

Area of second largest circle = 169π

Area of smallest circle = 49π

400π - (169π + 49π) = 182π

Pls help I need it now!!

Answers

Answer:

42

Step-by-step explanation:

What is meant by halting problem?

Answers

Therefore , the solution of the given problem of tractable problem comes out to be halting problem claims that no computer can be created that can anticipated.

Describe a tractable problem.

an algorithm that takes a polynomial amount of time to solve a tractable issue. The upper bound is described by a polynomial. Any issue that cannot be addressed in a polynomial period of time is considered to be intractable. The lowest limit is exponential.

Here,

The halting problem claims that no computer can be created that can anticipated.

the likelihood that any other program will halt after a certain number of steps, making it an unsolved algorithmic challenge.

Software development is directly affected in practice by the stopping problem's insoluble nature.

Therefore , the solution of the given problem of tractable problem comes out to be halting problem claims that no computer can be created that can anticipated.

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HELP!! Find the value of…

Answers

94 I can do all ur work for 1 on CApp (813) 819-5978

Answer:

It C man.

Step-by-step explanation:

You don't need this


What is value of x
Enter your answer in the box.

Answers

Answer:

x=10

Step-by-step explanation:

Lets use a ratio.

3:2 (12 to 8)

We need to scale the x+4 up 3/2 to be equal to 2x+1

(3/2) x+4 = 2x+1

1.5x+6=2x+1

-1.5x    -1.5x

6=0.5x+1

-1          -1

0.5x=5

x=10

The width of a swimming pool is one third of its length. The width of the pool is 15 feet. What is the length of the
pool?

Answers

15 x 3 = 45 so the length is 45 feet

find the measure indicated in each parallelogram

Answers

Answer:

Step-by-step explanation:

WX≅VY

VY = 7

CD≅BE

BE = 13

which is the correct comparison of solutions for 2(5-x) > 6 and 22 > 2(9+x)?

Answers

The correct comparison of solutions for the expression is x < 2

How to determine the correct comparison of solutions for the expression

From the question, we have the following parameters that can be used in our computation:

2(5-x) > 6 and 22 > 2(9+x)

Rewrite the expression properly

So, we have the following representation

2(5 - x) > 6 and 22 > 2(9 + x)

Divide both sides of the expressions by 2

So, we have the following representation

5 - x > 2 and 11 > 9 + x

Subtract both sides of the expression by the constant term

This gives

-x > -3 and 2 > x

Rewrite as

x < 3 and 2 > x

So, we have

x < 3 and x < 2

When combined, we have

x < 2

Hence, the solution is x < 2

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In ΔDEF, e = 11 cm, f = 44 cm and ∠D=41°. Find the area of ΔDEF, to the nearest square centimeter.

Answers

Answer:

Not Rounded- 158.766

Rounded- 159

Step-by-step explanation:

Delta Math

The function f(x) = x² +1 has a minimum at what coordinate point (x, f(x))? See the graph below.

Answers

Answer:

(0,1)

Step-by-step explanation:

Refer to the attached image.

Conan borrows $3,000 at a yearly simple interest rate of 1.6% for 2 years

Answers

If Conan borrows $3,000 at a yearly simple interest rate of 1.6% for 2 years then he has to pay 3009.6 back.

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given that Conan borrows $3,000 at a yearly simple interest rate of 1.6% for 2 years.

A=P(1+rt)

Where, A is final amount, P is principal amount, r is rate of interest, t is time period.

P=3000, r=0.16%=0.16/100=0.0016, t=2

A=3000(1+(0.0016)2)

=3000(1+0.0032)

=3000(1.0032)

=3009.6

Hence, Canon needs to pay back 3009.6

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Quadrilateral TEAMTEAMT, E, A, M i rotated -180^\circ−180

minu, 180, degree about the origin

Answers

The quadrilateral's image points will be,A(3, 3) → A'(-3, 3) R(5, 7) → R'(-7, 5) M(7, 5) → M'(-5, 7) Y(5, 1) → Y'(-1, 5).

If a point (x, y) is rotated 180 degrees anticlockwise with respect to the origin, the rotational rule is:

(x, y) → (-y, x) (-y, x)

Consequently, the image point's coordinates following rotation will be (-y, x).

Using this guideline,

The quadrilateral's image points will be,

A(3, 3) → A'(-3, 3)

R(5, 7) → R'(-7, 5)

M(7, 5) → M'(-5, 7)

Y(5, 1) → Y'(-1, 5)

By graphing the image points we can get the graph of the image quadrilateral A'R'M'Y'.

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The question is incomplete, complete question:

Quadrilateral ARMY is rotated 180 degrees about the origin. Draw the image of this rotation.

The owner offers a payment plan where the total cost of the mountain bike is paid in 3 equal monthly payments. Determine the amount of each monthly payment. Show your work or explain your answer.

Answers

Answer:

Step-by-step explanation:

$66.67/month for three months

The monthly payment is calulated by dividing the total cost of the mountain bike by 3.  For example, if the total cost is $200, the three monthly payments will be $66.67 each:

   $200

---------------- = $66.67/month for three months

  3 months

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