Mathematics High School

PLEASE HELP I NEED HELP​

PLEASE HELP I NEED HELP

Answers

Answer 1
20%

800-640=160
160/800=1/5=.2=20%

Related Questions

answer this please
don't send a link ​

Answers

Answer:

Supplementary angles

Step-by-step explanation:

AEB and BEC form a straight line.

They add to 180 degrees

AEB+ BEC

150+30

180

That means that they are supplementary angles

Answer: https://www.wattpad.com/story/73852998-feathers-itachi-uchiha-deidara-x-reader-lemon

Step-by-step explanation:

If the coordinate of A is (0,-2) and the coordinate of B is (10,-6), then the midpoint of AB is (______).

Answers

Answer:

5, -4

Step-by-step explanation:

midpoint = x1 + x2/2 ,y1 + y2/2

= 0 + 10 /2 , -2 + -6/2

= 10/2 , -8/2

midpoint = 5, -4

Find an expression to represent the area of the triangle below.

Answers

Answer:

[tex] A = \dfrac{8x}{3x + 1} [/tex]

Step-by-step explanation:

[tex]A = \dfrac{bh}{2}[/tex]

[tex] A = \dfrac{16x^2}{9x^2 - 1} \times \dfrac{6x^2 - 5x + 1}{2x^2 - x} \times \dfrac{1}{2} [/tex]

[tex] A = \dfrac{(16x^2)(6x^2 - 5x + 1)}{2(9x^2 - 1)(2x^2 - x)} [/tex]

[tex] A = \dfrac{(16x^2)(2x - 1)(3x - 1)}{2(3x - 1)(3x + 1)(x)(2x - 1)} [/tex]

[tex] A = \dfrac{8x}{3x + 1} [/tex]

Tell whether the angle measures can be those of a triangle.

20°, 160°, 20°

Yes, can be those of a triangle.
No, cannot be those of a triangle.

Answers

No.

The 3 angles of a triangle need to equal 180 degrees.

The sum of the 3 given angles is greater than 180 ( 160 + 20 + 20 = 200) so it cannot form a triangle.

Damien LOVES fruit. He has 22 oranges. If Damien, only eats .2 of a cupcake each day, how many days will it take him to eat all 22 cupcakes?

Answers

Answer:

c

Step-by-step explanation:

My Samsung charger broke so I went to Five Below to get a new one. They were on sale for $15,35 (not so five below). There
was a 6% tax too. How much did the new charger cost?

Answers

Answer:

It would be in thE 20.75

Step-by-step explanation:

Just keep adding change by 9 6 times

Answer : $16.27

Explanation : 15.35 x .06 = .92 cents
15.35 + .92 = = 16.27

Use a unit circle and 30°-60°-90° triangles to find the degree measures of the angle.

angles whose sine is
[tex] \frac{ \sqrt{3} }{2} [/tex]

Options:

30° + n × 360° and 330° + n × 360°

60° + n × 360° and 120° + n × 360°

240° + n × 360° and 300° + n × 360°

150° + n × 360° and 210° + n × 360°

​

Answers

Answer:

its B

Step-by-step explanation: Cause I have big brain. >:)

Juan earns a flat fee of $150 plus $20 for every hour he works decorating 5 points
a house. Which graph correctly displays Juan's earnings?

Answers

Answer: The 3rd one is the correct answer

Step-by-step explanation:

Simplify the following expressions to have fewer terms (MIDDLE SCHOOL)

5x-3+(4x-6)+2

4y+3-(8x-2)

Answers

Answer:

Install math calculator

Thank you

Answer:

x=1\9

Step-by-step explanation:

first part:

5x-3+4x+2

5x+4x-3+2

9x-1  

9x=1

x=1\9 answer.

At a particular restaurant, each mini hotdog has 100 calories and each slider has 200 calories. A combination meal with mini hotdogs and sliders is shown to have 1200 total calories and 4 times as many mini hotdogs as there are sliders. Graphically solve a system of equations in order to determine the number of mini hotdogs in the combination meal, x,x, and the number of sliders in the combination meal, yy.

Answers

Answer:

The number of sliders is 2 and the number of hot dogs is 8.

Step-by-step explanation:

Since at a particular restaurant, each mini hotdog has 100 calories and each slider has 200 calories, and a combination meal with mini hotdogs and sliders is shown to have 1200 total calories and 4 times as many mini hotdogs as there are sliders, in order to determine the number of mini hotdogs in the combination meal, X, and the number of sliders in the combination meal, Y, the following calculation must be performed:

2X + Y = 1200

800 + 400 = 1200

800/100 = 8

400/200 = 2

Thus, the number of sliders is 2 and the number of hot dogs is 8.

The diameter of a circle has endpoints at (0,11) and (-6,-1). Write the equation of the circle in standard form.

Answers

Answer:

(x - 3)^2 + (y - 6)^2 = 17

Step-by-step explanation:

The standard form of a circle's equation is (x-h)² + (y-k)² = r² where (h,k) is the center and r is the radius.

(x - 3)^2 + (y - 6)^2 = 17

f(x) = x^2 + 4x-12
(a) What are the x-intercepts?
(b) What is the y-intercept?
(c) What is the maximum or minimum value?

Answers

Answer:

a) x-intercepts at -6 and 2

b) y-intercept at -12

c) minimum at (-2, -16)

Step-by-step explanation:

Determine whether each quadrilateral is a parallelogram. Write yes or no. If yes, give a reason for your answer. ​

Answers

Answer:

yes

Step-by-step explanation:

All of the opposite sides are parallel  to each other.  

Is (6, –2) a solution to this system of equations? y = –1/6 x − 1 y = 1/6 x − 3

Answers

Answer:

Yes, (6, -2) is a solution to the given system of equations.

Step-by-step explanation:

Please write  y = –1/6 x − 1 y = 1/6 x − 3 as follows, for greater clarity:

y = (–1/6)x − 1

y = (1/6)x − 3

Let's actually solve this system:

y = (–1/6)x − 1

y = (1/6)x − 3

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

2y = -4, or y = -2

Now find x.  Arbitrarily we choose to use the first equation for this purpose:

y = (-1/6)x - 1.  We set y = -2 and find x:    -2 = (-1/6)x - 1

Combining the constants, we get -1 = (-1/6)x, or 6 = x

Yes, (6, -2) is a solution to the given system of equations.

A store owner buys a case of 144 pens for $28.80. He sells the pens for $0.40 each. The owner claims that they marked the pens up by 50% before selling them. Prove that the owner calculated their markup correctly. If they did not, how much of a markup actually occurred?

Answers

Answer: $0.3

Step-by-step explanation:

Given

The owner buys 144 pens for $28.80 i.e. each pen costs

[tex]\dfrac{28.80}{144}=\$0.2[/tex]

owner sells the pen at $0.4 i.e. price marked up by

[tex]\Rightarrow \dfrac{0.4-0.2}{0.2}\times 100=100\%[/tex]

So, the claim of the owner is incorrect

The actual increase in the price to get 50% markup

[tex]\Rightarrow 0.2\times (1+0.5)=\$0.3[/tex]

HELP ME PLEASE https://brainly.com/question/22734415
I’m gonnna fail :(

Answers

What’s your question

Find the total surface area of the rectangular prism

Answers

Answer:

124

Step-by-step explanation:

To find the surface area, we add the area from all faces or the prism.

the first face, we can put 8 times 2.5, which is 20. There are two of these faces, so we have 40 in our area so far.

next the other face. 4  times 2.5 is 10, and there are two of these faces. 60 in out area.

now the top and bottom faces. 8 times 4 is 32. there are two of these faces, and 60 +64 = 124

Approximately what percentage of hardcover books sold were nonfiction?

Answers

Answer:

B

Step-by-step explanation:

Okay, so I need the one step equation for this question: Lee drove 420 miles and used 15 gallons of gasoline. How many miles did Lee's car travel per gallon of gasoline. I really need the one step equation version, as I know the number is 28. Please help me!​

Answers

Answer: *g is gallons of gasoline
15g=420miles so g=28miles. Lee's car traveled 28 miles per gallon of gasoline.

Hope this helped! :)

Which of the following describes the root of the following function? f[x] = -x2 3x + 1 Select one a. Exactly 1 rational root. b. 2 distinct rational roots. c. 2 distinct irrational roots. d. 2 distinct imaginary roots.​

Answers

Answer:

please stop being lazy by using OCR! next time type the question!

there's nothing such as  = -x2 3x + 1

it's probablhy f(x) = -x² + 3x + 1

Answer:

2 distinct irrational roots

Step-by-step explanation:

What is the value of C?

Answers

Answer:

2

Step-by-step explanation:

The answer is 2.

Explanation:

Pls help, question on picture, will do brainliest if right
no links!!!!!

Answers

Answer:

12/13

Step-by-step explanation:

side² = 13² - 5² = 169 - 25 = 144

side = √144 = 12

sin ∅ = 12/13

How am I supposed to do this?

Answers

Take it step by step by doing the 2 fractions on top

a winter coat was priced at 200. each month for three months, thr price was reduced by 15. how much was the coat reduced in price

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$155
Why: because the starting price is 200. 15*3= 45 dollars taken off in 3 months. $200-$45=$155. Hope this helps!

2/5 of 16 simplify if you can thank you

Answers

Answer:

6 and 2/5

Step-by-step explanation:

Answer:

Decimal form: 6.4

Fraction form: 32/5

Step-by-step explanation:

of = times

2/5 x 16 = 6.4

Can someone help me with this. Will Mark brainliest.

Answers

Answer:

3.3

Step-by-step explanation:

Callum is walking 270 miles to raise money for cancer research. He plans to walk 1/9 of the distance each day. After 7 days, how much farther does he have to walk to reach his goal?

Answers

270-(7/9x270)=60miles

Factor the expression over the complex numbers. x2+20 Enter your answer in the box.

Answers

Answer:

2(x plus 20)

Step-by-step explanation:

this is the highest common factor

This is the equation: f(x)=x^2

e) Is f(x) symmetric? If so, what is the equation of the line of symmetry?

f) Does f(x) have a maximum or minimum? If so, at what point?

g) What are the x-intercept(s) of f(x)?

Answers

Answer:

e) yes, symmetric around the y-axis

f) minimum at (0,0)

g) x-intercept at 0

Step-by-step explanation:

The roots of 3x2 + x = 14 are
1. imaginary
2. real,rational,equal
3.real,rational,unequal
4.real,irrational,unequal

Answers

Answer:

3

Step-by-step explanation:

3x2 +x −14 = 0 12 −4(3)(−14) = 1+168 =169 = 132

The roots of 3x² + x = 14 are real, irrational and unequal

What is Quadratic equation?

A quadratic equation is a second-order polynomial equation in a single variable x, ax² + bx +c=0 with a ≠ 0 .

Given equation is :

3x² + x = 14

3x² + x - 14=0

we have, a=3, b=1 c=-14

D= b²-4ac

  = 1²-4*3*(-14)

  = 1+168

  = 169

As, D>0

Hence, the roots are real.

Now,

x= -b±√b²-4ac/2a

 = -1±√169/2*3

 =-1±13/6

x= -1-13/6  and x= -1+13/6

x= -7/3  and x= 12/6=2

Hence, the roots are real, irrational and unequal.

Learn more about quadratic equation here:

https://brainly.com/question/2263981

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