What is 12+[2-(4*a2)]÷7+b

Answers

Answer 1

Answer:

86 - 4a^2 + 7b over 7

Step-by-step explanation:


Related Questions

Due in 20 min plz help!!!!

Answers

Answer:

8:10 in ration

8/10 fraction

Step-by-step explanation:

33.3% as a fraction please helppppppppppp

Answers

Answer:

[tex]\frac{1}{3}[/tex]

Step-by-step explanation:

1/3 is the fraction form of 33.3% or 0.333

f(x) = 36x, find f(3/2)


36


72


216


64

Answers

Answer:

f(5) = 6(5-2) = 18

Step-by-step explanation:

hope this help ~~~~~~~~------~~~~~~~~

plz help no Links only answers

Answers

Answer:

x=45

Step-by-step explanation:

First, we can add the two expressions and set them equal to 180.

3x+45=180

To isolate x, we can subtract 45 from each side, getting:

3x=135

Next, we can divide both sides by 3 to further isolate x. In the end, we get x=45.

CAN SOMEONE PLEASE HELP ME IVE ASKED MORE THAN 20 TIMES.

A wildlife society is taking a sampling of the lengths of bluegill fish at a local lake.


If the survey resulted in the data above, the distribution of fish lengths would be best described as...
A.
symmetrical with multiple modes.
B.
symmetrical with one mode.
C.
skewed to the right.
D.
skewed to the left.

Answers

Answer:

I’m thinking skewed to the right

Answer:

I think it is D but not totally sure.

And i am sorry you had to ask so many times, i hope D was the correct answer.

Also this talks about skewed images:

please answer ill give you brainiest

Answers

Answer:

V =3.14 ( 2)^2 2.5  ft^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

Using 3.14 for pi

The diameter is 48 so the radius is 1/2 d = 1/2(48) =24inches and the height is 2.5 ft

We need to have the same units on the radius as the height

24 inches = 2 ft

V =3.14 ( 2)^2 2.5  ft^3

NED HELP ASAP PLEASE
On a unit circle, the terminal point of 0 is (1/2,square root 3/2). What is 0 if 0°< 0<360°?
A. 45°
B. 15°
C. 30°
D. 60°
No links please

Answers

The value of θ if 0°< 0<360° on a unit circle where the terminal point of 0 is (1/2,square root 3/2), is 60°.

What is a terminal point?

The terminal point of a circle or circular path is the measure of the angle in degrees or radians over the circle, at the endpoint on the coordinate plane.

On a unit circle, the terminal point of θ is,

[tex]\left(\dfrac{1}{2},\dfrac{\sqrt{3}}{2}\right)[/tex]

The image of the unit circle is attached below. The value of theta at terminal point (1/2,square root 3/2) is 60 degrees.

Thus, the value of θ if 0°< 0<360° on a unit circle where the terminal point of 0 is (1/2,square root 3/2), is 60°.

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Answer:

Step-by-step explanation:

Its D, 60 degrees

I just took it

Find the surface area of the prism.
T
5 cm
4 cm
9 cm

Answers

The answer is 202cm!!!!!
The answer is 202cm :)

Mrs. Golden wants to cover her bulletin board that is 6.5 feet long and 4 feet tall. if she using 1

foot squares to cover the board, how many squares will she need?

Answers

Answer:  26

Step-by-step explanation:

6.5 feet long and 1-foot square means 6.5 (6 and 1 half) squares in length

4 feet tall, 6.5 times 4 (length times width) to equal 26 feet

if it's 26 feet, that means it will use 26 of the 1-foot squares

What is the missing length?

Answers

Answer:

h=7

Step-by-step explanation:

A=1/2bh

42=1/2(12)h

42=6h

42/6=7

h=7

Rylee is learning about prime numbers in math class. Her friend ask her to name all prime number between 10 and 20. What numbers should Rylee name

Answers

Answer:

11, 13, 17, 19

Step-by-step explanation:

If you look at the prime numbers chart between 10 and 20, there are:

11, 13, 17, 19

Those are all of the prime numbers that are between 10 and 20.

Which values are solutions to the inequality below? Check all that apply.

x² < 144

What are the two answers for this and how do I complete this problem?

Answers

9514 1404 393

Answer:

  -12 < x < 12

Step-by-step explanation:

It helps to think about what this looks like on a graph.

y = x² describes a parabola that has its vertex at the origin and opens upward. You know that 12² = 144, so the value of x² will exceed 144 when the value of x is more than 12. You also know the parabola is symmetric about the y-axis, so the same will be true for values of x less than -12.

The one solution to the inequality is ...

  -12 < x < 12

__

You can also go at this slightly differently--a way you might want to use for more complicated quadratic inequalities. Put the inequality in standard form, and factor it.

  x² -144 < 0

  (x +12)(x -12) < 0

Note that these factors are zero for x = -12 and for x = 12. The solution is the set of values of x where the sign of the product is negative.

The sign of the product of two numbers will be negative when one of them is negative and the other is positive. Since the zeros of this product are -12 and +12, the sign of the product will be different in the intervals (-∞, -12), (-12, 12), and (12, ∞). In the left-most of these intervals, both factors are negative, so the product is positive and the interval is not part of the solution set.

For the middle of these intervals, (-12, 12), the sign of (x+12) is positive and the sign of (x-12) is negative. The product will have a negative sign, so this interval is part of the solution set.

For the rightmost interval (12, ∞), both factors have positive signs, so the product is positive and the interval is not in the solution set.

Based on the analysis of the signs of the factors, we realize the solution to the inequality is the interval (-12, 12), or -12 < x < 12.

_____

The wording of your question suggests you are given a list of numbers and asked to identify those that satisfy the inequality. We don't see that list, so we can only tell you the set of numbers the solutions must be in.

Note that -12 or +12 are not solutions to this.

30 POINTS!!!



What is the approximate rate of change of this function on the interval [-2, 2]
A.-9/8
B.-7/2
C. 8/7
D. 4

Answers

Answer:A

Step-by-step explanation:

The approximate rate of change of this function on the interval [-2, 2] is Option A; -9/8.

How to measure the rate of change of something as some other value changes?

Suppose that we have to measure the rate of change of y as x changes, then we have:

[tex]Rate = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]

where we have

[tex]\rm when \: x=x_1, y = y_1\\when\: x = x_2, y= y_2[/tex]

Remember that, we divide by the change in independent variable so that we get some idea of how much the dependent quantity changes as we change the independent quantity by 1 unit.

The interval given as:  -2 ≤ x ≤ 2

Let (x_1,y_1) = (-2, 2)  and  (x_2,y_2) = (2, -2.5)

The rate of change

[tex]\dfrac{y_2-y_1}{x_2-x_1}\\\\\\=\dfrac{-2.5-2}{2+2} \\\\=\dfrac{-4.5}{4}\\\\=-\dfrac{9}{8}[/tex]

Therefore, the approximate rate of change of this function on the interval [-2, 2] is Option A; -9/8.

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Can someone help me?

Answers

20%
ㅎㅎㅎㅎㅎㅎㅎㅎㅎㅎㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ

20 POINTS PLS AWNSER

Tyson has a $50 gift card to use at a store. He does not have any additional money to spend at the store. Tyson will purchase a belt that costs $8 and x number of shirts that cost $15 each. The function f(x) = 42 - 15x models the balance on the gift card after Tyson makes the purchases. What is the most appropriate domain of the function?

A) all integer values of x

B all positive integer values of x

C OsXs 2 where x is an integer

D OsXs 3 where x is an integer​

Answers

A, all integer values of x

The function f(x) = 42 - 15x models the balance on the gift card after Tyson makes the purchases. The most appropriate domain of the function; A) all integer values of x.

How to evaluate a given mathematical expression with variables if the values of the variables are known?

You can simply replace those variables with the value you know of them and then operate on those values to get a final value. This is the result of that expression at those values of the considered variables.

The function is a type of relation, or rule, that maps one input to a specific single output.

Tyson has a $50 gift card to use at a store. He does not have any additional money to spend at the store.

Tyson will purchase a belt that costs $8 and x number of shirts that cost $15 each.

The function f(x) = 42 - 15x models the balance on the gift card after Tyson makes the purchases.

The most appropriate domain of the function;

A) all integer values of x

Learn more about evaluating a function at a value here:

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which system of equations has no solution?

Answers

It’s either the third one or first one

A cookie jar has 9 chocolate chip cookies, 17 peanut butter cookies, and 17 sugar cookies inside of it. The cookie monster's favorite cookies are chocolate chip cookies. What is the probability that the cookie monster will be disappointed and doesn't get his favorite cookie? Round your answer to the thousandths place.

Answers

Answer: 4.78

Step-by-step explanation:

add up all the cookies and then divide by his favorite.

Answer:I got 2500%

Step-by-step explanation:so first I added 17+17 then you subtract 9 so that gives you 25 then if you convert it into a percentage you would be 2500.

Multiply the polynomials (y −5)(2y+ 3)

Answers

Answer:

(-3 + -2y)(5 + -1y) = 0

Step-by-step explanation:

Simplifying

(y + -5)(2y + 3) = 0

Reorder the terms:

(-5 + y)(2y + 3) = 0

Reorder the terms:

(-5 + y)(3 + 2y) = 0

Multiply (-5 + y) * (3 + 2y)

(-5(3 + 2y) + y(3 + 2y)) = 0

((3 * -5 + 2y * -5) + y(3 + 2y)) = 0

((-15 + -10y) + y(3 + 2y)) = 0

(-15 + -10y + (3 * y + 2y * y)) = 0

(-15 + -10y + (3y + 2y2)) = 0

Combine like terms: -10y + 3y = -7y

(-15 + -7y + 2y2) = 0

Solving

-15 + -7y + 2y2 = 0

Solving for variable 'y'.

Factor a trinomial.

(-3 + -2y)(5 + -1y) = 0

Answer: 2y^2−7y−15

Hope this helps :)

What is the surface area of the square pyramid?

Answers

Answer:

Right square pyramid

Solve for surface area

A=a2+2aa2

4+h2

a Base edge

Enter value

h Height

Geometry Question, Need Help. I will give brainliest.

Answers

Answer:

QUESTION:

Geometry Question, Need Help. I will give the brainliest.

ANSWER:

I think that its the second choice on the drop-down list

Step-by-step explanation:

Hope that this helps you out! :)      

If you have any questions please put them in the comment section below this answer.      

Have a great rest of your day/night!      

Please thank me on my profile if this answer has helped you.

At a particular fast food restaurant, tacos cost $1.29 and
burritos cost $2.19. Michael spent a total of $42.93 at the
restaurant to buy food for a party. If he purchased half as
many burritos as tacos, how many tacos did he buy?

Answers

Answer:

Michael bought 18 tacos and 9 burritos.

Step-by-step explanation:

Since at a particular fast food restaurant, tacos cost $ 1.29 and burritos cost $ 2.19, and Michael spent a total of $ 42.93 at the restaurant to buy food for a party, if he purchased half as many burritos as tacos, to determine how many tacos did he buy, the following calculation must be performed:

1.29 x 20 + 2.19 x 10 = 47.7

1.29 x 16 + 2.19 x 8 = 38.16

1.29 x 18 + 2.19 x 9 = 42.93

So Michael bought 18 tacos and 9 burritos.

Paula donate $30 to charity for every hundred dollars last summer she earned $3680 how much money did she donate to charity

Answers

$123 if we round to the nearest whole number

Answer:

ok all it is 3680 divided by 30 witch equals 122 dollars she got back

Step-by-step explanation:

Question 8 of 10 What is the median of this data set? 14, 18, 31, 34, 44, 50 AL32.5 O B. 33 C. 31.5 D. 31​

Answers

Answer:

a

Step-by-step explanation:

184 is what percent more than 148

Answers

9514 1404 393

Answer:

  24.3%

Step-by-step explanation:

The percent change can be calculated as ...

  pct change = ((new value)/(old value) -1) × 100%

  = (184/148 -1) × 100%

  = (1.243243... -1) × 100% ≈ 24.3%

184 is about 24.3% more than 148.

f(x) = 2x2 +6x − 8 mstjgh

Answers

0= 4+6x-8
0= -4+6x
-6x= -4 (Divide)
x=2/3

If 4 workers can paint a room in 3 hours, then approximately how long does it take 6 workers to paint the same room? Assume the time needed to paint the room is inversely proportional to the number of workers.
a. 12 hours 3 hours
b. 2 hours 4 hours

Answers

Answer:

the answer is 2 hours

Step-by-step explanation:

You need to buy pizzas for a class party. You can buy 4 large
pizzas for $10.00, or 7 large pizzas for $19.25. Which is the better
buy?

Answers

Answer:

4 pizzas for 10

Step-by-step explanation:

Divide the prices by the number of pizzas and you will get the prices per pizza.

2.50$ per pizza for 4

2.75$ per pizza for 7

4 large pizza since it would be 8 for $20 rather than 7 for 19.25
Or
4 pizza for $10 is $2.50 each rather than 2.75 each

Can someone tell me what is 3/20 x 100?

Answers

Answer:

15

Step-by-step explanation:

Answer:

300/20 = 15

Step-by-step explanation:

There are a number of ways to solve this problem, but I will show you the easiest way.

3/20 x 100/1 =

First, do 3 x 100. This gives you 300.

Next, do 20 x 1. This gives you 20.

So now, your answer is 300/20.

300 divided by 20 is 15, so this simplified version of 300/20 is 15!

300/20 = 15 (simplified)

Which is a positively skewed distribution?

Answers

Answer:

to me it looks like B but i could be wrong

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

(A.P.E.X)

a woman is 10 times as old as her daughter. In 8 years she will be 4 times as old as her daughter. How okd is her mother now?

Answers

Answer:

48 yr. old

Step-by-step explanation:

Assume daughter is 4 and mom is 10 times her age,  so mom is 40.

10 (woman) * 4 (daughter's age) = 40 yr. old mom

Present day...

40 (yr old mom) + 8 (yrs later) = 48 yr. old mom today

4 (yr old daughter) + 8 (yrs later) = 12 yr. old daughter today

So, if mom is 4 times as her daughter's age today...

48 (yr. old mom) / 12 (yr. old daughter) = 4

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