Mathematics College

is this right? pls be fast

Answers

Answer 1

Answer:

first 2 I'm not sure about. for the first one I think its 0.5 if that's an option

Related Questions

What is the answer?

.......................................................

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An expression is defined as a set of numbers, variables, and mathematical operations. The expressions can be arranged as shown below.

What is an Expression?

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

According to the number of terms, the expressions can be arranged as,

x+3-y-6 ⇒ 4 terms8x+(2/3)x+6 ⇒3 terms2x+5(3x²) ⇒ 2 terms3x⁹ ⇒ 1 ter,

Hence, the expressions can be arranged as shown above.

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Which matrix multiplication is possible

Answers

Answer: D)

Step-by-step explanation: using a matrix calculator for each equation, the last one was the only one that was possible which came out to be ( 0,4,0,-4)

find cos 2x if sin x= 5/13 and x is in quadrant 2

Answers

Answer:

cos(2x) = [tex]\frac{119}{169}[/tex]

So I’m failing right now but I need 44% to pass and I have a 38% right now.I take notes and I get 5/5 (or 100%) on the notes. I did 4 of them will that bring it up?? If so what would be my current grade. Please help meeeeeee.

Answers

Answer:

well yes it but it depends on how much each points you will get for each assignment and how much you have, but other than that I am very sure It will! don't lose hope! keep doing your best! only think positive!!!

Lease help me please thanks you

Answers

Answer:

x=6

Answer:

Step-by-step explanation:

Answer:

No, it is not.

Step-by-step explanation:

because 8.5 is the same as 8.50.

Hope this helps!

What is the perimeter of a triangle with sides 11 inches, 6 inches, and 13 inches in length? 11 6 A 19 inches 28 inches C 30 inches 17 inches 13 B

Answers

Answer:

The answer is C

Step-by-step explanation:

The explanation is to add all the sides together and then get your answer

A right rectangular prism has these dimensions:

Length − Fraction 1 and 1 over 2 units
Width − Fraction 1 over 2 unit
Height − Fraction 3 over 4 unit

How many cubes of side length Fraction 1 over 4 unit are required to completely pack the prism without any gap or overla

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Find the slope of the given line. Please see attached photo. Thank you

Answers

Answer:

-2

Step-by-step explanation:

Find two points which lie on the line :

Take (-2, -1) and (-1, -3)

Formula for slope (m) :

m = y₂ - y₁ / x₂ - x₁m = -3 + 1 / -1 + 2m = -2/1m = -2

Answer: [tex]-2[/tex]

Step-by-step explanation:

[tex]Slope:m=0[/tex]

[tex]y=mx+b[/tex]

[tex]-2*10^0[/tex]

[tex]-2~is~a~rational~number[/tex]

[tex]\frac{180}{pi}[/tex]°

anyone understands this?

Answers

Answer:

4x+6

Step-by-step explanation:

i am pretty sure 4x+2

Calculate the square root of 9 and get 3.

4x+2×3

Multiply 2 and 3 to get 6.

4x+6

Which of the following values in the set below will make the inequality 6x + 2 =14

Answers

3.5 would be the awnser

Determine the intervals on which f(x) is x>0 and on which f(x) is x<0.
f(x)=x^5+x^4-3x^3-3x^2-9x-9

Answers

Answer:

f(x) > 0 for (-2.203, -1) U (2.203, ∞)f(x) < 0 for (-∞, -2.203) U (-1, 2.203)

Step-by-step explanation:

A graph shows real zeros at ±2.203 and -1. The value of f(x) changes sign at each of these.

The positive leading coefficient indicates the graph trends generally upward, so the function will be positive in intervals with an even number of zeros to the right.

f(x) positive

There are an even number of zeros to the right of x = 2.203 and the interval (-2.203, -1).

f(x) is positive in the intervals (-2.203, -1) or (2.203, ∞).

f(x) negative

The function will be negative where it is not positive (except at the zeros)

f(x) is negative in the intervals (-∞, -2.203) or (-1, 2.203).

_____

Additional comment

The graph shows the only rational real root of the function is x=-1. Using synthetic division to reduce the polynomial, we find ...

f(x) = (x +1)(x^4 -3x^2 -9)

The remaining factor is a quadratic in x^2, which has roots ...

x = ±√(1.5 ±√11.25)

The real roots are approximately ±2.20320266118. The value 2.203 used above is a stand-in for the exact value √(1.5 +√11.25)).

PLS HELP THIS IS MY LAST QUESTION I NEED THIS DONE ASAP PLS DONT DELETE MY QUESTION

Answers

Answer:

10 points

Step-by-step explanation:

you just need to subtract the score in game 6 from the score in game 5

Answer:

Step-by-step explanation:

Look in the graph.

In game 6, use the last bar to the right in dark blue. The Tigers scored 35 points.

In game 5, use the purple bar. the Tigers scored 25 points.

To find the difference, we subtract.

35 - 25 = 10

Answer: 10

simplify. a^7/a^3 Its a fraction that needs to be simplified

Answers

Answer:

= a^4

Step-by-step explanation:

. a^7/a^3

= a^4

Mrs. Smith gave two classes the same quiz. She randomly selected 5 students from each class to compare the classes. The scores of the five students are shown below. Class A: 80, 82, 74, 92, 94 Class B: 82, 80, 88, 86, 82
What are the mean and range for each class ?
Class A- mean = 84.4 range = 14
Class B - mean = 83.6. range = 8

Using the information found in the question above which class mrs smith report had the more consistent performance on the unit test ?, explain what this means in terms of the situation

Answers

The mean and range for class A are 84.4 and 20 while the mean and range for class B are 83.6 and 8. Class B is more consistant then class A.

How to calculate the mean?

We can see from the data that the consistency of class B is more becuase the repeatation of the same score is more in class B then class A and the range of class B is also less then the class A.

It should be noted that mean simply means average. It's the addition of the numbers divided by the total numbers.

In this case, the computation will be:

Class A: Mean = 422/5= 84.4.

Range: 94-74 = 20

Class B: Mean = 418/5 = 83.6.

Range= 88-80 = 8

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What is the probability of picking a pink marble and rolling an even number?

Write your answer as a fraction or a whole number. With fractions, use a slash ( / ) to separate the numerator and denominator.

Answers

Answer:

[tex]\frac{6}{14}[/tex]

Step-by-step explanation:

P(A and B) = P(A) × P(B)

~~~~~~~~

P(A) = [tex]\frac{6}{7}[/tex]

P(B) = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex]

P(A and B) = [tex]\frac{6}{7}[/tex] × [tex]\frac{1}{2}[/tex] = [tex]\frac{6}{14}[/tex]

identify each expression that represents the slope of a tangent to the curve y=1/(x+1) at any point (x,y).

Answers

Answer:

Step-by-step explanation:

lim 1 / (x + h +1) - 1 (x + 1)

x--> 0

lim -h/ (x + h +1)(x + 1)

x--> 0

lim -h/ (x^2 + 2x + hx + h + 1)

x--> 0

-1/ (x^2 + 2x + 1)

Each horse ride lasts 5 minutes with 1 minute pause in between the next ride. After every hour and a half the horse are given a rest. How many children can get a opportunity to ride a horse before they rest

Answers

The 15 children get an opportunity to ride a horse before they rest if the horse ride lasts 5 minutes with a 1-minute pause in between the next ride. After every hour and a half, the horse is given a rest

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

Each horse ride lasts 5 minutes, with a 1-minute pause in between the next ride. After every hour and a half, the horse is given a rest.

Let's assume the number of children that rides the horse is x

Then we can frame a linear equation in one variable:

5x + 1x = 60+30 (After every hour and a half, the horse is given a rest.)

After solving we get:

6x = 90

x = 15 rides

Thus, the 15 children get an opportunity to ride a horse before they rest if the horse ride lasts 5 minutes with a 1-minute pause in between the next ride. After every hour and a half, the horse is given a rest

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You’re involved in the design of a new facility. It is important for people to move between work stations quickly. Based on the figure below, how many feet would a person need to walk to get from Work Station 1 to Work Station 3?

Answers

Answer: its 13 feet

Pythagoras' theorem states that a^2 + b^2 =
c^2

what is the y-intercept of this line y= x/5-12

Answers

Answer:

(0, -12)

Step-by-step explanation:

The y-intercept of a line can be found when taking x = 0.

Therefore,

y = 0 - 12y = -12

The y-intercept of the line is (0, -12)

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

[tex]\diamond\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}\diamond[/tex]

◈ What is the y-intercept of the line, [tex]\bold{y=\dfrac{x}{5} -12}\textit{?}[/tex]

[tex]\diamond\large\blue\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}\diamond[/tex]

◈ Here's a shortcut to find the y-intercept.

Here's the equation:-

[tex]\large\textbf{y=x/5-12}[/tex]

[tex]\square\!\!\!\!\!\!\triangle[/tex] The y-intercept is a negative or positive constant that's added to or subtracted from the slope.

Constant:- A number with no variables next to it (for example, in the expression d-12, -12 is the constant)

So we conclude that

[tex]\Huge\textit{The y-intercept is -12}[/tex].

The y-intercept is usually written as (0, -12).

Good luck.

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At the fast food restaurant, an order of fries costs $1.05 and a drink costs $1.07. How much would it cost to get 3 orders of fries and 4 drinks? How much would it cost to get ff orders of fries and dd drinks?

Total cost, 3 orders of fries and 4 drinks:

Total cost, ff orders of fries and dd drinks:

Answers

Answer:

$7.43

Step-by-step explanation:

f (fries) = 1.01

d (drinks) = 1.07

1.05f + 1.07d = ?

To solve this problem, you need to replace the variable with the amount of each item.

1.05(3) + 1.07(4) = ?

Now we can solve by multiplying and adding:

3.15 + 4.28 = ?

7.43

Which inequality represents the graph shown below?

Answers

Answer:

x>-2

since the arrow goes to the right from -2 it is definitely greater than -2. now see that the line does not include the value -2 itself.. thus, we say it is greater than -2

Answer:

x > -2

Step-by-step explanation:

Details understood from the graph :

Open dot from starting pointIncreases from -2

Hence,

Open dot means > or <Greater means ⇒ >The inequality is : x > -2

Surface area and radis

Answers

Answer:

what do you want to say......?

Enter the number that belongs in the green box.

Answers

Answer:

B. 2

Step-by-step explanation:

Here we need to the find the value in the green box.

Hence, only evaluate the part to the left of the operation sign.

-(-2)2

Which equation is true when r = 7 ?

Answers

Answer:

7 = 49 ÷ r

Step-by-step explanation:

To find the equation that is true when r = 7, we need to find a number after the equals sign that is a multiple of 7.

Multiples of 7:

7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77...

Therefore, the only answer option in which the number after the equals sign is a multiple of 7 is:

7 = 49 ÷ r

To prove this, input r = 7 into each of the equations:

6 = 30 ÷ r

⇒ 6 = 30 ÷ 7

⇒ 6 ≠ 4.285... ← incorrect!

7 = 54 ÷ r

⇒ 7 = 54 ÷ 7

⇒ 7 ≠ 7.714... ← incorrect!

7 = 49 ÷ r

⇒ 7 = 49 ÷ 7

⇒ 7 = 7 ← correct!

9 = 72 ÷ r

⇒ 9 = 72 ÷ 7

⇒ 9 ≠ 10.285... ← incorrect!

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