Mathematics High School

Help me on math problem ​

Help Me On Math Problem

Answers

Answer 1

Answer:

Step-by-step explanation:

The first one

Answer 2
The answer is the first one

Related Questions

What does 8×9 equals?
1. 72
2.85
3.34
4.56
​

Answers

Answer:

8x9=72

Step-by-step explanation:

I hope that this helps u out..there is not really any explanation

Answer:

72

Step-by-step explanation:

8 Times Table

8 × 1 = 8

8 × 2 = 16

8 × 3 = 24

8 × 4 = 32

8 × 5 = 40

8 × 6 = 48

8 × 7 = 56

8 × 8 = 64

8 × 9 = 72

8 × 10 = 80

8 × 11 = 88

8 × 12 = 96

A number, rounded to 1 significant figure, is equal to 300.
Write down the lower and upper bounds of the number.

Answers

Answer:

lower bound is 299.5, upper bound is 300.5

Step-by-step explanation:

Velma is analyzing spending habits of the gang. She find a mean monthly discretionary expense of $70 spent on having meals out with friends. The standard deviation of the distribution is 5. Give the range of amounts within 1 standard deviation of the mean and explain what percent of friends will have be within 1 standard deviation if it is a normal distribution.

Answers

Answer:

im here for the points

Step-by-step explanation:

i’m here for the points

A gray crayon is made with 5\text{ mL}5 mL5, start text, space, m, L, end text of black wax for every 6\text{ mL}6 mL6, start text, space, m, L, end text of white wax.

Answers

Step-by-step explanation:

Given that,

A gray crayon is made with 5 mL of black wax for every 6 mL of white wax.

We need to find the mixture will create the same shade of gray.

For this we need to make the ratio same.

If we multiply 5 mL and 6 mL by 3 to make the ratio same.

5 mL × 3 = 15 mL

6 mL × 3 = 18 mL

Hence, 15 mL of black wax mixed with 18 mL of white wax  is mixed so as to make the ratio same.

Answer:

15ml of black wax mixed with 18ml of white wax

35ml of black wax mixed with 42ml of white wax

Step-by-step explanation: Khan Academy

What is the origin of algebraic expresions plz

Answers

The origins of algebra can be traced to the ancient Babylonians, who developed a positional number system that greatly aided them in solving their rhetorical algebraic equations.

I kind of need help. I completely forgot how to do ratios

Answers

Answer:

7:5

Step-by-step explanation:

a:b=4:5

a:c=2:7

c:b=7:5

brainliest please!!!<3

PLEASE ANSWER QUICK!!! The volume of ammonia in a balloon is now 6.1 L after changing the temperature from 52 °C to 79 °C. What was the original volume?

Answers

Answer:

the original volume is 4.0L

Step-by-step explanation:

Step one:

given data

V1= ?

T1=  52 °C

V2= 6.1L

T2=  79° C

Step two

applying the volume temperature relationship, which is

V1/T1= V2/T2

substituting we have

V1/52= 6.1/79

cross multiply we have

52*6.1= V1*79

317.2= 79V1

divide both sides by 79

V1= 317.2/79

V1=4.0L

Find the value of x
?????

Answers

Answer:

2x+57°+x=180 ( angle sum property of triangle)

3x=123

x=41

I just wanted to let you know I had to go eat a little bit earlier I have a lot to do for you to


An 80% confidence interval is found to be (26, 38). What is the margin of
error?
A. 9.6
B. 12
C. 6
D. 4.8

Answers

Answer:

C : 6

Step-by-step explanation:

What are the solutions to 7x^2 + 10x -3 = x^2 + 3x?​

Answers

Answer:

x=(1)/(3),-(3)/(2)

Step-by-step explanation:

Answer:

(- 3/2, 1/3)

Step-by-step explanation:

7x^2+10x-3=x^2+3x

7x^2+10x-3-x^2-3x=0

6x^2+7x-3=0

6x^2+9x-2x-3=0

3x x (2x+3)-(2x+3)=0

(2x+3)x(3x-1)=0

2x+3=0

3x-1=0

x1=- 3/2

x2= 1/3

Someone help me find the roots that this function have in common please

Answers

Answer:

B

Step-by-step explanation:

HELP MEEEE!
7th gradeeee

Answers

Answer:

0=0

Step-by-step explanation:

Add zero

0+2=2

2=2

Subtract 2 from both sides of the equation

2=2

2−2=2−2

Simplify

Combine like terms

2−2=2−2

0=2-2s

or

0=2s-2

0=0

Answer 0=0

Need help with this question

Answers

Answer:

Correct answer is no. 1

Step-by-step explanation:

Answer:

Choice A, or the first choice, should be the answer

Step-by-step explanation:

By using the process of elimination, you can cross out choices B and C because the speed limit is 30.

The speed limit is 30, thus your speed can be at 30 mi/h.

Choice A is the last and the correct answer.

Given the equation kx – 17 = 51 + x, where k=1, solve for X.

Answers

Answer:

No solution for x, when k = 1x = 68/(k - 1), when k≠ 1

Step-by-step explanation:

Given the equation

kx – 17 = 51 + x, where k = 1,

Solve for x:

1*x - 17 = 51 + xx - 17 = x + 51x - x = 51 + 170 = 68,

Incorrect equation, no solution for x when k=1

Solving for x when  k ≠ 1

kx - 17 = 51 + xkx - x = 51 + 17x(k - 1) = 68x = 68/(k - 1)

Write the coordinates of each image. Use the graph to help you out. ​

Answers

where’s the image love?

what is the ratio 5/7 to 2/7

Answers

Answer: What is the ratio of 7 to 2?

Students learn that a ratio is a comparison of two numbers or quantities. For example, if there are 2 shaded parts of a picture and 7 unshaded parts, the ratio of shaded parts to unshaded parts is 2 to 7. Note that the ratio 2 to 7 can also be written as 2:7 or 2/7

What is the ratio of 7 to 5?

20 : 28

5 : 7 = 20 : 28. And 7 is a fourth of 28.

Step-by-step explanation:

what is the rate of change for the function y= 5x+ 25

Answers

Answer:

5

Step-by-step explanation:

rate of change = slope = 5

What is a simplified expression term for -10f + -9f + 7

Answers

Answer:

-19f + 7

Step-by-step explanation:

group the fs

-19f + 7

is the simple expression

Solve: a + 4 = 48
a = 43
a = 51
a = 44
a = 52

Answers

Answer:

a = 44 is correct

Step-by-step explanation:

a + 4 = 48

plug in the #'s 1 at a time

43 + 4 = 48

47 = 48  FALSE

51 + 4 = 48

55 = 48  FALSE

44 + 4 = 48  TRUE

52 + 4 = 48  FALSE

Hope this Helps!!!

Answer:

Your answer would be a= 44

Step-by-step explanation:

44+4=48

To check: 48-4=44

Therefore, your answer is 44

37.
An express train travelled at a certain average speed from Town X to Town Y which was
150 km away. It then continued its journey to Town Z at an average speed 20 km/h faster than
its initial average speed. Town Ywas 200 km from Town Z. If it took the same time to travel for
both parts of the journey, what was the train's average speed for the first part of the journey?​

Answers

Answer:

60 km/hr

Step-by-step explanation:

Let the speed at the initial average speed from Town X to Town Y be a.

We are told that it journeyed to Town Z at an average speed 20 km/h faster than its initial average speed. Thus, its average speed here is (a + 20) km/hr.

Town Y was 200 km from Town Z.

Thus, time spent here is;

t_2 = 200/(a + 20)

Time from X to Y is; t_1 = 150/a

We are told that it took the same time to travel for both parts of the journey.

Thus; t_1 = t_2

150/a = 200/(a + 20)

Cross multiply to get;

150(a + 20) = 200a

150a + 3000 = 200a

200a - 150a = 3000

50a = 3000

a = 3000/50

a = 60 km/hr

Question is in picture ​

Answers

Answer:

[tex] \frac{y - 3}{x - 0} = \frac{3 - 1}{0 - 1} = \frac{2}{ - 1} \\ \frac{y - 3}{x} = - 2 \\ y - 3 = - 2x\\ 2x + y - 3 = 0 \\y = - 2x + 3 \\ \boxed{f(x) = - 2x + 3}[/tex]

B. is the right answer.

hope this helps.

Suppose (−7, 3) is reflected across the x-axis, and then the y-axis.

What will be the new coordinates?

Answers

the answer is (7,-3) ............

Answer:

(7, –3)

Step-by-step explanation:

did it on edgen

A rectangle has a height of 5 and a width of 4x^2-2x-6

Answers

i couldn’t type it so i took a picture of what it is

Solve 37+z≤54
then graph the solution

Answers

This is the answer I think

Which expressions are equal to 105?

Answers

Answer:

2•2²×100+5.

Step-by-step explanation:

first come first serve
1+1 equals what
you will get 40 points

Answers

Answer: 1+1 = 2 :)

Step-by-step explanation:

Answer:

1+1=2

this is a very simple question

write an equivalent expression for 8x + 9

Answers

Answer:

8+8+8+8+8+8+8+8+8.

Step-by-step explanation:

Just add 8 nine times.

Answer:

9 + 8x

Step-by-step explanation:

it's the same but backwards

it's called a Palindrome

Hope this helped a little!

Carlotta has a blue sweater, a red sweater, a pink sweater, and a white sweater. She also has a pair of black pants
and a pair of brown pants. Which of the following shows how many different ways she can wear a sweater and pair of
pants together?


!!!!!!WILL MARK BRAINLIEST!!!!!!

Answers

Answer:

The answer is D.

Step-by-step explanation:

The answer is c I think

whats 43.6 rouded to the nest tenth

Answers

Answer:

43.6

Rounded to the nearest 0.1 or

the Tenths Place.

The wildflowers began blooming by my house at the beginning of March. The first week there were 72 blooms. After week two, there were 144 flowers in bloom. If the flowers continue to bloom at the same rate each week, how many flowers will there be after 7 weeks?

Answers

Answer:

answer: 504 blooms <3

Step-by-step explanation:

if you add 72 and 72 then you get 144 so that means 72 blooms each week so if you multiply 72 x 7 you get 504!

Other Questions
i just need help grouping them A 7-pack of tickets to the zoo costs $78.61. What is the unit price? Which of the following statements is true?A. The Harirud River flows into the Kyzylkum Desert.B. The Syr Darya flows into Lake Balkhash.C. The Amu Darya flows into the Caspian Sea.D. Lake Balkhash has no outlet.Please select the best answer from the choices providedif you can please this is urgent can someone help me understand this better on what she means by this with procedures How much gravitational potential energy does a 1.0 kg hammer have on a shelf 1.5 m above the ground? A little girl is looking to select one crayon and one coloring book to do some drawing. She has 6 different colored crayons and 3 coloring books. How many different combinations of crayons and coloring books can she make if she selects one crayon and one coloring book to use? If f(x) = 7-2x , find [f(3)+6] ^2 Cases that involve federal law usually start in which type of court?A. U.S. District CourtB. State trial courtC. State appellate courtD. U.S. Court of Appeals find the values of x and y? O research existing data on accidents involving carscommunicate the results by telling everyone about the prototypeQuestion 3 (1 point)There is a set number of times you should go through the engineering design process- if your design isn't working by the 3rd time through, it's time to just quit and giveup.TrueFalseTo Which best describes the policy of containment?dividing a country into different sectionsadvancing militarily against communist countrieslimiting the spread of communism to new countriesbeing unable to reach agreements with other countries The table represents a function.What is f(-2)?0 -3-6-2f(x)314-2O-1O 1O 3 The 12 students in the Environmental Club represent 20% of the students in the seventh grade. How many students are in the seventh grade? Rather than go to war with the British in 1807, Jefferson passed the unpopular __________________ to prohibit trade with Britain, France, and their colonies.a.Townsend Actsc.Navigation Actsb.Embargo Actd.Nonintercourse Act Which of these is an advantage of fossil fuels? *O ReliableO Large reservesO Greenhouse gas emissionsO Non-renewable Which layer of Earth contains all of the landforms?A atmosphereB crustC outer coreD mantlei think its B but im not sure In 1965 King and his wife, Coretta Scott King, led demonstrators on ahistoric 54-mile march that took five days, from where to where? HELPPPPPPPPPPPPPPP!!!!!!!!!!! BRAINLIEST IS ON THE LINE!!!!!!!!!!!!!!!!!Write a summary for Macbeth Act 1 Scene 2. County Middle School is buying pizza for all of its students. Each pizza has 8 slices. Each student will receive 1 slice. There are 700 students at County Middle School. How many pizzas will the school need to buy? Find the sale price of the item. Round to two decimal places if necessary. Original price: $234.16 Markdown: 79% The sale price is $_____PLS ANSWER ASAP !!! i will give the best answer brainliest :)