Mathematics High School

Please help!! I need the answer asap

Please Help!! I Need The Answer Asap

Answers

Answer 1
Hello,

I believe it’s the last one

Related Questions

What is the slope of a line parallel to the line with equation 2x+4y=8

Answers

Answer:

m = [tex]\frac{-1}{2}[/tex]

Step-by-step explanation:

To find the slope of most lines, we should rearrange the equation into the slope-intercept form or y = mx + b.

So,

2x + 4y = 8

4y = -2x + 8

[tex]y=\frac{-2x +8}{4}[/tex]

[tex]y=\frac{-2}{4}x+\frac{8}{4}[/tex]

[tex]y=\frac{-1}{2}x+2[/tex]

The slope is the coefficient of the x term, so

m = [tex]\frac{-1}{2}[/tex]

Answer:

[tex]-\frac{1}{2}[/tex]

Step-by-step explanation:

2x+4y=8

4y = -2x +8

y = [tex]-\frac{2}{4}[/tex]x + [tex]\frac{8}{4}[/tex]

y = [tex]-\frac{1}{2}[/tex]x + 2

y=mx+b so the slope is m=[tex]-\frac{1}{2}[/tex].  

parallel lines have the same slope.

what is the value of -3(7+5)/ 3^2 + 9(2)

A. -6
B. -2
C. 14
D. 22​

Answers

Answer: C.

Step-by-step explanation: 14

Answer:

C. 14

Step-by-step explanation:

Simplify the expression.

-3(7 + 5) ÷ 3² + 9(2)

-3 ⋅ 12 ÷ 3² + 9(2)

-36 ÷ 3² + 9(2)

Simplify each term.

Raise  

-36 ÷ 9 + 9(2)

Divide

-4 + 9(2)

Multiply

-4 + 18

Add

14

good luck, i hope this helps :)

Tom takes two walks every day, one in the morning and one in the evening, and walks for a total of 5 ¼ hours in a 7-day week If he walks for 15 minutes each morning, how many minutes does he walk for each evening?
Write an equation to represent this problem and then solve it. Show all your steps.

Answers

Answer:

30 minutes each evening

Step-by-step explanation:

5.25 / 7 = 0.75 hours each day = 45 minutes

45 - 15  = 30 minutes

Find the length of AB.
140°/6 in
19%
AB = [ ? ]in
B
Round your answer to the nearest hundredth.

Answers

Answer: 14.66 in

Step-by-step explanation:

cube root(8+ 3 root 21)+ cube root (8-3 root 21)
plese give good answer with explanation or I will report

Answers

Answer:

[tex]\sqrt[3]{8+3\sqrt{21} } + \sqrt[3]{8-3\sqrt{21} }[/tex] = 1

Step-by-step explanation:

Given[tex]\sqrt[3]{8+3\sqrt{21} } + \sqrt[3]{8-3\sqrt{21} }[/tex]To find The value of the expressionSolution

Let's rewrite the given as:

[tex]\sqrt[3]{3\sqrt{21} + 8} - \sqrt[3]{3\sqrt{21} - 8}[/tex]

Let the value is m and the expressions under 3rd roots are a and b, then we have

a = 3√21 + 8, b = 3√21 - 8m = ∛a - ∛b

Cube the both sides:

m³ = (∛a - ∛b)³m³ = a - b - 3[tex]\sqrt[3]{a^2b}[/tex] + 3[tex]\sqrt[3]{ab^2}[/tex]

Simplify in bits:

a - b = 3√21 + 8 - 3√21 + 8 = 16ab = (3√21 + 8)(3√21 - 8) = 9*21 - 64 = 125∛ab = ∛125 = 5

So the expression becomes:

m³ = 16 - 3[tex]\sqrt[3]{125a} + \sqrt[3]{125b}[/tex]m³ = 16 - 15∛a + 15∛bm³ = 16 - 15(∛a - ∛b)m³ = 16 - 15m

Solve for m:

m³ + 15m - 16 = 0m³ - 1 + 15m - 15 = 0(m - 1)(m² + m + 1) + 15(m - 1) = 0(m - 1)(m² + m + 16) = 0m - 1 = 0, m² + m + 16 = 0m = 1 is the only real root, the quadratic equation has no real roots

The answer is 1

My lil sister said she needs help with ALL of the questions..........if you help i will give you brainliest

Answers

Answer:

MONDAY: 2 hours

Tuesday: $34.65

Thursday: -54

Friday: 5 complete bags

Sorry that I did not do the question below wednesday but I still hope this helps.

Pls mark me brainliest.

What is the slope of the line that passes through the points (10,8) and (-15,18) wrote the answer in simplest form

Answers

Answer:

-2/5

Step-by-step explanation:

To get into an amusement park, people have to pay an entrance fee. Then they pay additional amount for each ride
(every ride costs same amount of money). John rode 8 rides and spent a total of $32 (including the entrance fee). Michael
rode 11 rides and paid $41. How much was the entrance fee and the cost of each ride?

Answers

Answer:

entrance fee: $8

cost of each ride: $3

The chart shows the low temperature each day in International Falls, Minnesota, during the month of February 2009. What was the median low temperature in International Falls for the first week of the month?
6 -9 -29 -31 -8 4 3
anwsers
a -9
b -9
c -8
d -31

Answers

-31,-29,-9,-8,3,4,6. Median = -8. Answer is C

plsss help i have a d in this classsssssssssssssssssssssssssssssssssss

Answers

Answer:

73.5

Step-by-step explanation:

Answer:

86.64 uwu

Step-by-step explanation:

which relation represents a function ​

Answers

Neither because neither of them have a consistent rate of change

A hollow cylinder has solid hemisphere in one end and on the other end it is closed with a flat circular plate. The height of water is 10cm when flat circular surface is downward. Find the level of the water, when it inverted upside down, common diameter is 7cm and height of the cylinder is 20 CM.​

Answers

Answer:

this will be the correct answer

solve for x please thanks

Answers

Answer:

x=[tex]\frac{10}{14}[/tex]

Step-by-step explanation:

y=7x-2

2(7x-2)-4x=10

14x-4-4x=10

14x-4x=10-4

10x=14

x=[tex]\frac{10}{14}[/tex]

The person that just answered is wrong the answer is x=7/5

What is the slope of the line
help me plz ​

Answers

Answer: 2/3

Step-by-step explanation:

y=mx+b

Answer:

2/3

Step-by-step explanation:

the equation is in y=mx+b form and m=slope so 2/3 would be the slope.

hope this helped :)

Determine the x-intercept and y-intercept of the line
2x - 5y = 20.
Express your answer as an ordered pair pleas
x-intercept: ( , )

y-intercept: ( , )​

Answers

Step-by-step explanation:

step 1. the x intercept is when y=0.

step 2. 2x -5(0) = 20 or x = 10.

step 3. the x intercept is (10, 0)

step 4. the y intercept is when x=0.

step 5. 2(0) - 5y = 20 or y = -4

step 6. the y intercept is (0, -4).

Solve the equations
3a + b = 10 and 2a + 4b =0.
3a + b = 10
2a + 4b=0​

Answers

Answer:

a = 4 , b = -2

Step-by-step explanation:

3a + b = 10

2a + 4b = 0

(By using elimination method, eliminate one variable) - to get only one equation

(3a + b = 10 ) 4

2a + 4b = 0

12a + 4b = 40

(minus)

2a + 4b = 0

10a = 40

a = 40/10

a = 4

(substitute a into an equation to get b)

2a + 4b = 0

2(4) + 4b = 0

4b = 0 - 8

b = -8/4

b = -2

express in exponential form 200×75​

Answers

Do you mean exponential form as in scientific notation or as in prime factorization.

Now matter I will do both.

As in scientific notation.

200*75

=150*100

=1.5*10000

=1.5*10^4

As in prime factorization.

200*75

=2^3*5^2*3*5^2

=2^3 * 3 * 5^4

Do the one your teacher ask for :) Hope it helps!

Jaxson drives 15 miles in 10 minutes. If he drove one hour in total at the same rate, how far did he go?

Answers

Answer:

90 miles

Step-by-step explanation:

15 miles/10 minutes = x miles/60 minutes

10*6=60 so 15*6=90  

HELP PLS I GIVE BRAINLIEST

Answers

Answer:

1. $200

2. $65

3. $70

Step-by-step explanation:

1. 4x50=200

2. 200-135= 65

3. 135-65= 70


Plzzzz help ASAP!!!!!!

Answers

Answer:

J+9=S

Step-by-step explanation:

Answer:

j+9=s

Step-by-step explanation:

Help me plsssss!!!!!!!!

Answers

Answer:

use math -way it helps a lot

Step-by-step explanation:

find the value of y

Answers

Answer:

Step-by-step explanation:

[tex]sin90/10=sin45/y\\ \\ y=10sin45\\ \\ y=5\sqrt{2}[/tex]

Answer:

The answer is

[tex]5 \sqrt{2} [/tex]

Step-by-step explanation:

By using Pythagoras

Then

[tex] {y}^{2} + {y}^{2} = {10}^{2} \\ 2 {y}^{2} = 100 \\ {y}^{2} = 50 \\ y = \sqrt{50} = \sqrt{2 \times 25} = 5 \sqrt{2} [/tex]

What is 12.70 - n + 9 + n/4?

Answers

Answer:

21.70-3/4n

Step-by-step explanation:

A bicycle helmet has a selling price of $50. The helmet is discounted 30% off the selling price. The sales tax rate is 6%. What is the total cost of the helmet?

Answers

Convert 30% to a decimal by dividing by 100 = 0.30

Multiply by the cost of the helmet, $50
50 x 0.30 = $15, the amount of the discount.

50-15 = $35, the sale price of the helmet.

For the sales tax, again, convert to a decimal by dividing by 100 = 0.06

35 x 0.06 = 2.10, the amount of sales tax

$35 + $2.10 = $37.10, total cost with tax

What does the graph of a geometric sequence look like?

Answers

here is one I hope this helps lol I'll follow u if u follow me

A snail travels at an average speed of 0.1 feet per hour for 15 minutes. How many feet will the snail travel?

Answers

Answer:

1.5 Feet

Step-by-step explanation:

15 x .1 = 1.5


3 pencils cost $0.45. What is the cost per pencil?

Answers

Answer:

0.15

Step-by-step explanation:

Find the slope of the line y=-6x-4. Type your answer as an integer.

Answers

Answer:

The slope is -6

Step-by-step explanation:

In the slope intercept form, it is y=mx+b, where m is the slope and b is the y-intercept

Therefore, -6 is slope and -4 is y-intercept

Simplify: (9a* - 5a'-1)+7a*

Answers

Answer:

The answer is -2a because first you multiple the number and eliminate redundant perenthese then last combine like terms and that how you get -2a



Find the Surface Area of the following figure:
16 ft
10 ft
7 ft

Answers

Answer:

1120

Step-by-step explanation:

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