Mathematics College

Help me please this is a test and I don’t want to fail

Answers

Answer 1

Answer: 0.4%

40%

37.5%

Step-by-step explanation:

Related Questions

Evaluate the expression
5.4+ab, if a = 4 and b = 8

Answers

Answer:

37.4

Step-by-step explanation:

a = 4 and b = 8

change the equation

5.4 + (4) (8)

use P.E.M.D.A.S. and multiply

4*8 = 32

add

5.4 + 32 = 37.4

Can anyone help I do t know how to find all seven angles

Answers

Answer:

1. 110

2. 70

3. 70

4. 110

5. 110

6. 70

7. 70

Step-by-step explanation:

when to lines cross, opposite angles are equal so like 1 and 4 are equal

1, 4, and 5 are equal to 110

to find 2, 3, 6, and 7, subtract 110 from 180

Step-by-step explanation:

110 is vertical from angle 5 so they are the same

180-110=70 degrees

Hi! My teacher shows us a video and thats it, so I'm really struggling on our math test today. Can you help me answer this question? Thank you :)

Answers

Answer:

A and E

Step-by-step explanation:

Need help rn by 10:42am est

Answers

Answer:

1. 5/6 - 6/5 2. 1/8 - 8 3. 6 2/3 - 20/3 - 3/20

Step-by-step explanation:

In mathematics, the reciprocal, also known as multiplicative inverse, is the inverse of a number x. denoted as 1/x or x-1. This means that the product of a number x and its reciprocal yields 1

Hope this helps!!!

Solve the system of linear equations by ellmination. 5x + 9y = -11 3x + 9y = -3 A. (-4,-1) -B. (-1, –4) C. (-4,1) D. (1,-4)

Answers

Answer:

Step-by-step explanation:

5x + 9y = -11

3x + 9y = -3

5x + 9y = -11

-3x - 9y = 3

2x = -8

x = -4

-12 + 9y = -3

9y = 9

y = 1

(-4, 1)

Answer is C

solve similar triangles advanced Pleasee help! TIA

Answers

Answer:

[tex]x = 3.5[/tex]

Step-by-step explanation:

Given

Attached Triangle

Required

Find x

To solve for x, we make use of the following equivalent ratios:

[tex]CB : BA = ED : DA[/tex]

Where:

[tex]CB = 2[/tex]

[tex]BA = 4[/tex]

[tex]ED = x[/tex]

[tex]DA = 3 + 4 = 7[/tex]

So, the expression becomes:

[tex]CB : BA = ED : DA[/tex]

[tex]2 : 4 = x : 7[/tex]

Express as fraction

[tex]\frac{2 }{ 4} = \frac{x }{ 7}[/tex]

Multiply both sides by 7

[tex]7*\frac{2 }{ 4} = \frac{x }{ 7}*7[/tex]

[tex]7*\frac{2 }{ 4} = x[/tex]

[tex]\frac{7*2 }{ 4} = x[/tex]

[tex]\frac{14}{4} = x[/tex]

[tex]3.5 = x[/tex]

[tex]x = 3.5[/tex]

9 - 8k = 105? Please help me

Answers

Answer:

k is equal to -12

Step-by-step explanation:

9-8k=105

minus 9 from both sides of the equations:

-8k=96

divide both sides by -8:

k=-12

Simplify the expression.
3.59 + 5 - 2.5

Answers

Answer:

6.09

Step-by-step explanation:

3.59 + 5 - 2.5 = 6.09

hope this helps...

RJ's recipe for cupcakes calls for sugar, flour, and milk in the ratio of 3:4:2. If a batch of
cupcakes contains 12 tablespoons of flour, how many tablespoons of sugar does it contain?
A) 9 tablespoons
B) 6 tablespoons
C) 10 tablespoons
D) 15 tablespoons

Answers

The answer is C 10 tablespoons

What is the shape of the cross section formed by a plane slicing parallel to the base?
A) rectangle
B) square
C)circle
D) triangle

Answers

Answer:

triangle

Step-by-step explanation:

Answer:

triangle

Step-by-step explanation:

Submit the worksheet with your constructions to your teacher to be graded. Click on the SAVE button to indicate that the assignment is complete.

Answers

Answer:

mom?

Step-by-step explanation:

what is the variable in the expression 3y+8

Answers

The variable: is y

The variable is y

n electric vehicle has a battery pack that is made up of 10 individual cells. With a 95% probability, we know that any given cell will last at for least 10,000 charge-discharge cycles. Assuming that the failure of any given cell in the battery pack does not depend, in any way, on the performance of any other cell in the battery pack, what is the probability that every cell in the battery pack will last for at least 10,000 charge-discharge cycles

Answers

Answer:

0.5987 = 59.87% probability that every cell in the battery pack will last for at least 10,000 charge-discharge cycles

Step-by-step explanation:

For each cell, there are only two possible outcomes. Either it will least for at least 10,000 charge-discharge cycles, or it will not. Cells are independent of each other. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

10 individual cells.

This means that [tex]n = 10[/tex]

95% probability

This means that [tex]p = 0.95[/tex]

What is the probability that every cell in the battery pack will last for at least 10,000 charge-discharge cycles

This is P(X = 10).

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 10) = C_{10,10}.(0.95)^{10}.(0.05)^{0} = 0.5987[/tex]

0.5987 = 59.87% probability that every cell in the battery pack will last for at least 10,000 charge-discharge cycles

I need help bad!!!!!!! Question: Angle ABC and angle DEF are supplementary. If

Answers

Answer:

Angle ABC and angle DEF are supplementary if and only if they add up to 180 degrees

Factor equation
x2 – 5x – 6

Answers

Answer:

(x+1) (x−6)

Step-by-step explanation:

Answer:

x 2 − 5 x − 6

Step-by-step explanation:

Write the following sentence using mathematical symbols. The quotient of n and 10 is 8 times n. The answer is .

Answers

Answer:

n ÷ 10 = 8 x n

what is 246 : 7 in long division

Answers

Here we will show you step-by-step with detailed explanation how to calculate 246 divided by 7 using long division.

Before you continue, note that in the problem 246 divided by 7, the numbers are defined as follows:

246 = dividend

7 = divisor

Step 1:

Start by setting it up with the divisor 7 on the left side and the dividend 246 on the right side like this:

7 ⟌ 2 4 6

Step 2:

The divisor (7) goes into the first digit of the dividend (2), 0 time(s). Therefore, put 0 on top:

7 ⟌ 2 4 6

Step 3:

Multiply the divisor by the result in the previous step (7 x 0 = 0) and write that answer below the dividend.

7 ⟌ 2 4 6

Step 4:

Subtract the result in the previous step from the first digit of the dividend (2 - 0 = 2) and write the answer below.

7 ⟌ 2 4 6

- 0

Step 5:

Move down the 2nd digit of the dividend (4) like this:

7 ⟌ 2 4 6

- 0

2 4

Step 6:

The divisor (7) goes into the bottom number (24), 3 time(s). Therefore, put 3 on top:

0 3

7 ⟌ 2 4 6

- 0

2 4

Step 7:

Multiply the divisor by the result in the previous step (7 x 3 = 21) and write that answer at the bottom:

0 3

7 ⟌ 2 4 6

- 0

2 4

2 1

Step 8:

Subtract the result in the previous step from the number written above it. (24 - 21 = 3) and write the answer at the bottom.

0 3

7 ⟌ 2 4 6

- 0

2 4

- 2 1

Step 9:

Move down the last digit of the dividend (6) like this:

0 3

7 ⟌ 2 4 6

- 0

2 4

- 2 1

3 6

Step 10:

The divisor (7) goes into the bottom number (36), 5 time(s). Therefore put 5 on top:

0 3 5

7 ⟌ 2 4 6

- 0

2 4

- 2 1

3 6

Step 11:

Multiply the divisor by the result in the previous step (7 x 5 = 35) and write the answer at the bottom:

0 3 5

7 ⟌ 2 4 6

- 0

2 4

- 2 1

3 6

3 5

Step 12:

Subtract the result in the previous step from the number written above it. (36 - 35 = 1) and write the answer at the bottom.

0 3 5

7 ⟌ 2 4 6

- 0

2 4

- 2 1

3 6

- 3 5

You are done, because there are no more digits to move down from the dividend.

The answer is the top number and the remainder is the bottom number.

Therefore, the answer to 246 divided by 7 calculated using Long Division is:

1 Remainder

Mark as brainlist

35
7 |245
|21
36
35
1

35 with a remainder of 1 is the answer

15. A private swimming club
ges $2.50
After the first hour, swimmers have to pay an additional $1.50 for each h.
hour, or part of a half hour thereafter. Georgina and her friend swam int
pool for x hours.

Answers

Answer:$11.00

Step-by-step explanation:

Which set of angles will be complimentary

Answers

∠1 + ∠3 + 90° = 180°

∠1 + ∠3 = 90°

∠3 = ∠4 (vertically opposite angles)

∠1 + ∠4 = 90°

Therefore, the answer is ∠1 + ∠4

Is this correct please answer

Answers

Answer:

no need to skip a line between the office equipment and common stock.

Step-by-step explanation:

The ratio of length to width on a rectangle is
1/6 : 2/3.
The perimeter of the figure is 90. Find the
length of the rectangle.

Answers

Answer:

half flyfkycoyfkgflycj hrxhrhddzg

Help me with this question please please

Answers

The answer would be 36.

Since 17u and 19u have the same variable all you have to do is add 17 and 19.

El nivel de cooperación fue:

Los compañeros que dirigieron la dinámica se comportaron:

Mientras que los demás se dejaron dirigir fueron:

quienes no se involucran en la dinámica porque:

B)EN GRUPO COMENTEN CÓMO VIVIERON LA DINÁMICA Y QUÉ APRENDIZAJE PODRÍAN OBTENER DE LA EXPERIENCIA ANOTA TUS CONCLUSIONES:

ES DE SOCIO EMOCIONAL NO RESPONDAS SI NO SAVES

Answers

Answer:

this doesn't make sense

Step-by-step explanation:

find the y intercept

Answers

Answer:

y intersept: (0,-1)

Step-by-step explanation:

trust me

please help me
I need help bad

Answers

Answer:

Step-by-step explanation:

I hope this helps :)

The correct answer should be C

The _____ in the hundreds place has a value ____ times as great as the _____ in the _____ place. 440

Answers

Answer:

The 4 in the hundreds place has a value 10 times as great as the 4 in the tens place.

Step-by-step explanation:

440 = 400 + 40 + 0

the hundreds place is worth 400 here

it is worth 10x the tens place (40 here)

8. Read this question carefully. PLEASE NEED HELP NOWWW
At a dinner, the meal cost $32.00 and a sales tax of $2.40 was added to
the bill.

a. How much would the sales tax be on a $66.00 meal?
b. What is the tax rate for meals at this restaurant?

Answers

Answer:

a.70.95

b. 7.5

Step-by-step explanation

If you divide 2.40 by 32, you get the ratio of the tip to cost, which is 0.075, or 7.5 percent. Multiply 66 by 1.075, which includes both the cost and the tax.

The triangle below is reflected over the line x = 4.
Which transformation(s) would produce the same image?
2676$10
A Reflecting over the x-axis and then translating to the right 4 units
B. Reflecting over the y-axis and then translating to the right 4 units
C Reflecting over the y-axis and then translating to the right 8 units
D Reflecting over the x-axis and then translating to the right 8 units

Answers

9514 1404 393

Answer:

C. Reflecting over the y-axis and then translating to the right 8 units

Step-by-step explanation:

Reflection over the line x=4 gives you the transformation ...

(x, y) ⇒ (2·4 -x, y) = (-x +8, y)

This is precisely the same transformation you get by reflection over the y-axis:

(x, y) ⇒ (-x, y)

followed by translation to the right 8 units:

(-x, y) ⇒ (-x +8, y)

Reflection over x=4 is the same as reflection over y and translation right 8.

don’t understand, plz explain very urgent

Answers

Basically you have to use trigonometry to solve this. You will be using a sine ratio. Type sin-1(36/43). Use the 2nd button to do this. Your answer should be 56.84659158 but round to 57.

If the original parabola f(x) = x2 were transformed into f(x) = 4(x - 3)2 +1, what changes took place?
А
The parabola would be vertically stretched by a factor of 4, translated right 3 and up 1.
B
The parabola would be vertically compressed by a factor of 4, translated right 3 and down 1.
С
The parabola would be vertically stretched by a factor of 4, translated left 3 and up 1.
D
The parabola would be vertically compressed by a factor of 3, translated left 3 and down 1.

Answers

Answer:

Step-by-step explanation:

Other Questions

when youre referring to a group of students studying, would it be estudia or estudian? Los estudiantes ____ WILL GIVE BRAINLIEST PLEASE HELPRyan and Eduardo are saving up money for a vacation to Italy. They have calculated that the trip will cost at least $900. If theyve already saved $270, how much more do they need to save in order to have enough for the trip? Write an inequality and solution set OMG PLEASE HELP!! DONT ANSWER IF YOU DONT KNOW ;-;Which statement is true -5.3 > 3.5-2 > -2.6- 7.09 < -7.10 When Brandon went bowling, it cost $4.95 per game, plus a one-time fee to rent the shoes. Brandon played 5 games and paid $32. Write and solve a linear equation to find the cost to rent the shoes. Enter just the equation in slope-intercept form on this question. Use the equation from the previous question to find the cost of renting the shoes. How did Askia Muhammed contribute to the success of Songhai? Choose ALL that apply.A) Used a well-trained army to control the empire.B) Established a system of weights and measures which created constant wealth.C) Stopped trade to focus on the spread of Islam.D) Appointed Muslim judges to enforce lawsE) Encouraged further learning in Arabic and studying of the Quran. Advertising is an example of Directive Culture: True or False two ways that Congress's powers are checked by other branches of government . Please help me with this thank you! What is the greatest common factor of 7, 35, and 28? A blueprint of a house has a scale of 1 in = 6 ft. the living room has dimensions (width x length) of 18 ft by 24 ft. What are the dimensions on the blueprint of the living room? (use 2 different proportions; one for width and one for length) aw = 108 in, l = 144 in bw = 3 in; l = 4 in cw = 3 in; l = 144 in dw = 3 in; l = 4 in "We consider the underlying fallacy of the plaintiff's argument to consist in the assumption that the enforced separationof the two races stamps the colored race with a badge of inferiority. If this be so, it is not by reason of anything found inthe act, but solely because the colored race chooses to put that construction upon it..."--Plessy v. Ferguson, 1896Because of this Supreme Court decision,A African-Americans were guaranteed full equality and voting rights in southern states.B states were prohibited from implementing racially segregated institutions and public facilities.states were guaranteed the right to implement racially segregate institutions and public facilities.D President Grover Cleveland lost the support of southern Democrats, which led to his defeat in the election of 1900. please help me with these two ill give brainiest to the right answers what are you most thankful for WILL MARK BRAINLIEST!!! DUE SOON!!Explain the need for businesses to use forecasting models and evaluate the use of Time Series Analysis as one of these models Identify the next three terms of the sequence below:-6, -10, -14,... The vertices of a swimming pool are E(5, 5), F(5, 20), G(35, 20), and H(35, 5). The endpoints of a line that divides the pool into two sections are J(15, 5) and K(15, 20). The coordinates are measured in meters. What is the area of each section? which list shows the phase of mitosis in the correct order what is 3.33333333333 as a whole number? :After reading Part 1 of "The Veldt, write a one paragraph response answering the question, "OMG! What Happened!?!" in the short story. Your response should include text evidence from the story to support your response. (In other words, you are writing a GIST or Summary.)