Mathematics High School

please help!!!!!!!! it’s due in an hour!!!!!!!

Answers

Answer 1

Using (b/2)^2 to create the order, the answer is : 6r^2 -17r + (577/24)

Related Questions

The value of k for which x²-4kxy+4y²=0 represent a pair of straight is?

Please help me!!

Answers

Answer:

k=1 k= -1

Step-by-step explanation:

hello :

here is an solution

(2x+4)(x-2)
please help

Answers

Answer:

2x squared - 8

Step-by-step explanation:

For this kind of equation, we use the distributive property

So in the image below I used a box method (that's how I learned it in school)

So since -4x and 4x cancel each other out, or amount to 0, we don't put anything for those. So the equation left is 2x squared - 8

I need help asap!!!!!!!!

Answers

Answer:

Step-by-step explanation:

in order to find y, we need to find x.

180-65-62=53

x=53

we need to subtract 53-?=11

53-42=11

y=42

Answer:

Step-by-step explanation:

because the triangles are congruent, we can place the angle x in CDE to solve for it. Knowing the sum of all angles in a triangle is 180, we can set up the formula below.

62 + 65 + x = 180

Additionally, because the triangles are congruent, we know that the length of CD is equal to GH, letting us set up this formula:

x - y = 11

Solving the first formula, we now know the value of x, 53.

62 + 65 + 52 = 180

Plugging that into the second formula and solving, we get 42.

53 - 42 = 11

Lauren rides her bike 36 miles in 4 hours. How many feet is Lauren traveling each minute?

Answers

Answer:

786 feet per min

Step-by-step explanation:

60 (mins in an hour) x 4= 240 mins

there are 5240 feet in a mile

5240 (feet in a mile) x 36= 188640

188640 divided by 240= 768

"792 feet per second" is the correct answer36 ÷ 4 = 9mph5,280 x 9 = 47,520fph47,520 ÷ 60 = 792fpsPlease let me know if I am wrong.

A sweatshirt that was originally priced at $42.50 has been marked down to $34.00.
What is the percent decrease?
80%
25%
15%
20%

Answers

Answer:

the answer is 20%.

Step-by-step explanation:

all you have to do is multiply 42.50x.20 and it gives you 8.5. to check your answer you subtract 34.00 from 42.50 and you get 8.5 as well. hope this helps!

Answer:

20%

Step-by-step explanation:

Hope it helps! :)

Find the range of the following graph

Answers

Answer:

-1 < y < 7

Step-by-step explanation:

< and not ≤

because the end points are not included

The perimeter of a rectangular jewelry store is 244 feet. It is 49 feet wide. How long is it?

Answers

Answer:

195ft

Step-by-step explanation:

244-49=195

Help geometry hw will give brainliest

Answers

Answer:

34 degrees

Step-by-step explanation:

Angle K is similar to Angle R, and Angle R is 34 degrees. So Angle K is also 34 degrees.

Hope it helps!

To
357 is what percent of 420?

Answers

Answer:

Percentage Calculator: 357 is what percent of 420? = 85.

Answer:

85%

Step-by-step explanation:

357/420 reduces to 17/20 if you divide the numerator and denominator by 21 which is equivalent to .85

can someone help :)) and pls explain how u got it so i can understand

Answers

Answer:

B) x = 20

Step-by-step explanation:

The formula for finding the missing side of a right triangle is: a^2+b^2=c^2.

C represents the longest side of the right triangle, so if we plug in the given lengths, we can solve: 12^2 + 16^2 = x^2

Solve the exponents: 144 + 256 = x^2

Add: 400 = x^2

Find the square root: 20 = x

Student Council held a bake sale to raise money for the local food pantry. They sold a total of 40 items which included pies and cakes. Pies were $10 each and cakes were $8 each. They raised $356. How many pies and how many cakes did they sell?

Answers

Answer: 18 pies, 22 cakes

Step-by-step explanation:

Let the number of pies sold be represented by p.

Let the number of cakes be represented by c.

The information in the question can then be represented in an equation as:

p + c = 40 ........ i

10p + 8c = 356 ....... ii

Multiply equation i by 10

Multiply equation ii by 1

10p + 10c = 400 ....... iii

10p + 8c = 356 ....... iv

Subtract iv from iii

2c = 44

c = 44/2

c = 22

22 cakes were sold

Since 40 items were sold, the number of pies sold will be:

= 40 - 22

= 18 pies

**8. At a buffet restaurant, the price for dinner for an adult is $6.95 and the price for dinner for a child is $3.95. A
group of 8 people went to the restaurant for dinner and paid a total of $46.60, excluding tax and tip. How many
adults were in the group?
A.2
B.3
C.4
D.5

Answers

Answer is A

Step-by-step explanation:

Given the following functions, find the indicated values.
f(x) = 9 - 3x
(a) f(-4) (b) f(0) (c) f(2)

Answers

Answer:

hope it helped have a good day mate

After a class party, Hugo had 3/5 of a bag of candy left
over. He decides to split it between himself and 3
friends. How much candy will each person get?

Answers

Answer:

Each person will get 3/20 of the bag of candies

Step-by-step explanation:

3/5 divided by 4 = 3/5 * 1/4 = 3/20

Please mark as brainliest if the answer is correct!

Also, feel free to tell me if my answer is wrong, or you have more questions. :D

Rosemarie made a necklace from materials that cost $30. She is going to sell the necklace to Betty at 390% of this cost. About how much should Betty pay for the necklace?
А
$12,000
B
S1,200
C$120
DS12

Answers

The anger to how much will Rosemarie sell the necklace for is c $120

Answer: 12

Step-by-step explanation:

Complete the conversion. Enter your answer in the box. 7 c = pt

Answers

Answer:

7 cups = 3.5 pints

Step-by-step explanation:

Solve the equation.

2.5p = 25

Answers

2.5 x 10 = 25
Because P = 10

This is a required question
2) Find the measure of Exterior Angle A.*
92
43
1A,
Louan

Answers

the answer is 92 or it can be 1A

Find the volume of a sphere that has a diameter of 30 feet. Use 3.14 for pi.

Answers

Umm the answer I’m pretty sure is the diameter 5.346 and 30 feet divide that by 30

Worth 10 points!! Help!

Answers

anwer: 7 the answer is 7

Answer:

Ruby needs 7 combined.

Step-by-step explanation:

If she needs 1/4 cup of powdered milk for one batch, then we multiply 1/4 by 4 to see how much she needs for 4 batches, which is 4/4, or one whole.

If she needs 3/2 cups of whole wheat for one batch, then we multiply 3/2 by 4 to see how much she needs for 4 batches, which is 12/2, or 6.

Then we combine 6 and 1, which is 7.

WILL GIVE BRAILIEST PLZZZZ HELP MEEEEEE
A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The test results (expressed as a percent) for the two groups are shown below.

Studied: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84

Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

Which of the following statements are true?

There is no mode of the group that studied.
In general, those students that studied scored much higher than those students that did not study.
The mean of the group that studied is over 15 percentage points higher than the mean of the group that did not study.
The median of the group that studied is over 95.
The median of the group that did not study is less than 80.

Answers

Answer:

In general, those students that studied scored much higher than those students that did not study.

Step-by-step explanation:

Hope this helps.

The median of the group that did not study is less than 80.

also

In general, those students that studied scored much higher than those students that did not study.

A clothing store is having a sale in which everything is 10% off. A shirt’s original price is $27. A customer uses a coupon for $5 off after the sale price. How much did the customer save?

Answers

Answer:

$5.70

Step-by-step explanation:

Add the following complex numbers: (2 + 3i) + (3 - 2i)

Answers

Answer:

5 + i

Step-by-step explanation:

Combine real part ans combine imaginary parts

2 + 3i + 3 - 2i = 2 + 3 + 3i - 2i

= 5 + i

Answer:

5 and 1i

Step-by-step explanation:

So you’re adding the following complex numbers: (2 + 3i) + (3 - 2i)

normally if you see a (-) in front of a number, that means it’s negative so we’re gonna think about this as -2i and positive 3.

so you’re gonna want to take the 2 regular while numbers (without the variable) and then add those together. they’re like numbers so neither of them have a variable, which means they can easily be added, but you can’t add a number like 7 to a number like 9h because there’s a variable.

Now that you’ve added the 2 and 3, you get 5 right? so now you’re gonna take the 3i and -2i, and add those together. since the number 3i is bigger than -2i, the ending number after you add those is gonna be positive, and it’s gonna be 1i.

now i’m not sure if you’re supposed to make an equation out of this but you’re answer will be 5 and 1i or 5 + 1i

also if you don’t want to put 1i, 1i is the same as just “i”. so you can put 5 + i :)

hope this helped!!

Jill sold 478 out of 520 tickets to the opening night of her theater performance. What portion of the tickets did she sell?

Answers

Answer:

write your answer as a decimal, then round

Find the value of x in the triangle shown below.
8
2
Answer?

Answers

The answer is -2 because I already took this

Find the slope of the line passing through the points (-7,7)and (2,7)

Answers

Answer:

Step-by-step explanation:

23ewrfgdxdf

Answer:

Step-by-step explanation:

[tex]\frac{y2 - y1}{x2 - x1}[/tex]

[tex]\frac{7 - 7}{2 - -7} = \frac{0}{9} = 0[/tex]

Can someone please help! I need this quickly and I’m really struggling!

Answers

Answer:

x = 4

y = 3

Step-by-step explanation:

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

2x - 3x + 3 = -1

-x + 3 = -1

- 3 - 3

(-1) -x = -4 (-1)

x = 4

y = 4 - 1

y = 3

Answer:

x = 4, and y = 3

Step-by-step explanation:

I hope i helped you! :D

Can someone like help with this pleasee

Answers

Answer:

this is as test

Step-by-step explanation:

Daniel goes to an amusement park. He spent $31.75 on the admission fee and $9.25 on parking. He also spent $5.50 on snacks at the park.

If a ticket for a ride costs $5.50, what were the maximum number of rides he could take if he had $79.50 in his pocket?

Answers

Answer:

783 espero ter ajudado Bon estudos

Savannah is 9 years older thanDevante. The sum of their ages is 53. How old are Savannah and Devante?
(A) First write an equation you can use to answer this question. Use x as your variable.
The equation is _______
Answer: Devante is _______
and Savannah is ______

Answers

Answer:

Devante is 23 and Savannah is 32.

Step-by-step explanation:

We can set up a system of equations.

s - savannah's age

d - devante's age

s = d + 9

s + d = 53

Now we can substitute (d + 9) for s in the second equation.

(d + 9) + d = 53

2d + 9 = 53

2d = 46

d = 23

To find Savannah's age, we just add 9 to Devante's age. (plugging in 23 for d)

23 + 9 = 32

s = 32

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True or False please help HELPP FASTT!!A) Explain ONE new or refined piece of military technology that emerged during World War Iand led to the kinds of casualties Goebbels mentions in the passage.B) Explain ONE difference between the strategies behind World War I and World War II that ledto an increase in civilian casualties.C) Explain ONE way Goebbels's speech reflects the concept of total war during World War II. whats this oh _____ what is it A) janeB) juan.C)juanD) horse Q11 Which statements explain why the iron industry started in England?Choose all answers that are correct. Q11 options:England had many forests, providing fuel for the iron industry.England had plentiful supplies of iron ore.English iron makers were able to improve the process of smelting.English iron makers developed ways to shape iron into tools and parts of machines.Q12James Watt and Samuel Slater made important contributions to the Industrial Revolution. 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There are 3 answers need help to get my grade up to a 70% pleaseeeee I really need help :3 CAN SOMEONE PLEASE HELP ME THIS IS DUE IN 20 minutes Sand Dunes Sand dunes are an important part of our environment, but they can also be very harmful. Sand dunes are constantly moving, with help from the wind. If the wind blows hard enough, it can kick up the sand. This leads to dust storms, which are dangerous for all who live near the dunes. Sand also damages buildings that can be centuries old. For example, sand threatens buildings in Egypt, including the pyramids. The sand can break down the stones that made the pyramids. Though there are easy ways to keep sand dunes from moving, not all are good for the environment. For years, oil has been used to stop sand dunes from moving. People drench the sand dunes with oil, and the sand no longer is picked up by the wind. This is not good for the animals living in and around the dunes. It also wastes an important resource. 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