Mathematics High School

Help ASAP I’m learning about percents

Answers

Answer 1

Answer:

a. 50

b. 20

hope this helps

Related Questions

PLSSS HELP ASAP!!!!!!!

Answers

I would say rectangular correct me if I’m incorrect :)

anyoneeee knowww this is math i don’t know what it is

Answers

Answer:

Obtuce scalene

Step-by-step explanation:

Please answer this question fast

Answers

Answer:

1 : 6

Step-by-step explanation:

From the question given above, the following data were obtained:

Radius (r) = 10 cm

Height (h) = 15 cm

Ratio of TSA and CSA =?

Next, we shall determine the total surface area (TSA) of the cylinder. This can be obtained as follow:

Radius (r) = 10 cm

Height (h) = 15 cm

Pi (π) = 3.14

Total surface area (TSA) of the cylinder =?

TSA = 2πr(r + H)

TSA = 2 × 3.14 × (10 + 15)

TSA = 6.28 × 25

TSA = 157 cm²

Next, we shall determine the curve surface area (CSA) of the cylinder. This can be obtained as follow:

Radius (r) = 10 cm

Height (h) = 15 cm

Pi (π) = 3.14

Curve surface area (CSA) of cylinder =?

CSA = 2πrh

CSA = 2 × 3.14 × 10 × 15

CSA = 942 cm²

Finally, we shall determine the ratio of the total surface area (TSA) and curve surface area (CSA) of the cylinder. This can be obtained as follow:

TSA = 157 cm²

CSA = 942 cm²

Ratio of TSA and CSA =?

TSA : CSA = 157 / 942

TSA : CSA = 1 / 6

TSA : CSA = 1 : 6

Thus, the ratio of the total surface area (TSA) and curve surface area (CSA) of the cylinder is 1 : 6

Find the value of 2.8 + 6.5

Answers

Answer:

Step-by-step explanation:

2.8 + 6.5 = 9.3

Answer:

9.3

Step-by-step explanation:

2.8+6.5=9.3

You'd use addition to solve this

You see a silk shirt for $95 there is a 25% discount what is the discount

Answers

Answer:

71.25

Step-by-step explanation:

Answer:

I don't know sorry

maybe try looking it up

I really don't know I'm so sorry

Step-by-step explanation:

find the mean of the data in the pictograph

Answers

Answer:

16 is the mean

Step-by-step explanation:

I gave you the answer, no problem..

what is the slope of the line that is parallel to the line that goes through points 6, 3 and 16, -5

Answers

Slope is -4/5,parallel line have the same slope -4/5

Please help me 30 points please help me

Answers

Answer:

y = + 1x - 4y

Step-by-step explanation:

This could be the wrong way of writing it but thats the pattern ❤

Answer:

Step-by-step explanation:

y = + 1x - 4y

Please help it's due in 1 hr and I don't understand;-;

Answers

Answer:

1. x=6 y=7

hope that helps!

write a numerical expression for the verbal expression
eighteen more than five

Answers

Answer:

5+8

Step-by-step explanation:

Which equation represents a parabola with the focus at (0, -1) and
the directrix y
= 1?
(1) x2 = -8y
(3) x2 = Sy
(2) x2 = - 4y
(4) x2 = 4y

Answers

Answer:

Step-by-step explanation:

The vertex is halfway between focus and directrix, at (0,0).

The equation has the form y = ax².

Focal length p = distance between focus and vertex = 1

p = 1/|4a|

1 = 1/|4a|

|a| = ¼

The focus lies below the vertex, so the parabola opens downwards and a<0.

y = -¼x²

Equation represents a parabola with the focus at (0, -1) and

the directrix y=1 is [tex]x^2=-4y[/tex]

Given :

a parabola with the focus at (0, -1) and the directrix y= 1

The standard equation of parabola is [tex]y-k=\frac{1}{4p} (x-h)^2[/tex]

Focus is at (0,-1)

The midpoint of focus and directrix is the vertex

Directrix is at y=1

Midpoint of (0,-1) and y=1 is (0,0)

So the vertex is (0,0) that is our (h,k)

Now we find the value of p

The distance between vertex (0,0) and focus (0,-1) is the value of p

focus and vertex are 1 unit away. So p=-1

we got h=0 and k=0 and p=-1

Replace all the value in the standard equation

[tex]y-0=\frac{1}{4(-1)} (x-0)^2\\y=\frac{-1}{4} x^2\\4y=-x^2\\x^2=-4y[/tex]

Equation represents a parabola with the focus at (0, -1) and

the directrix y=1 is [tex]x^2=-4y[/tex]

Learn more : brainly.com/question/12582328

1) Expand and simplify the following:
a)3(x squared plus 3x cubed - 2)

Answers

Answer:

3x³ + x² - 2

Step-by-step explanation:

a) 3(x squared plus 3x cubed - 2)

x squared = x²

3x cubed = 3x³

3(x squared plus 3x cubed - 2)

= 3(x² + 3x³ - 2)

= 3x² + 9x³ - 6

Rearrange according to power

= 9x³ + 3x² - 6

When the expression is divided by 3, it is equivalent to

3x³ + x² - 2

y = 4x + 8; y = –x + 3

Answers

Answer:

y= -12

Step-by-step explanation:

4x+8 = -x+3 -> Find x by using all information

5x=-5 -> Simplify

x=-1 -> Solve

y=-12 -> Plug in to find y

14.6 is the geometric mean between a and 9. Find a to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

please help me with this

Answers

Answer:

i think its the second one

Step-by-step explanation:

Find the slope plllls I need help

Answers

Answer: 5 over 5

Step-by-step explanation:

Answer:

the slope is 5/4

Taya is on the track team. For practice, she runs 2.5 miles each day. At the
end of 14 days, how many total miles will Taya run?

Answers

Answer:

35 miles

Step-by-step explanation:

Answer:

35 miles

Step-by-step explanation:

2.5 x 14

Reid is taking piano and trumpet lessons. He likes the piano more, and last month
practiced the piano 5 hours for every 3 hours he practiced the trumpet.
Pick the diagram that models the ratio in the story.
piano
trumpet
piano
trumpet
If Reid spent 4 more hours practicing the piano than the trumpet last month, how many
hours did he spend practicing the piano?

Answers

Answer:

he would have spent 10 hours on the piano.

Step-by-step explanation:

every time he practices he practices two more hours on the piano then on the trumpet times that by two and you have your answer

what is a polynomial expression?

Answers

Step-by-step explanation:

a polynomial is an expression consisting of variables (also called indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables. An example of a polynomial of a single indeterminate x is x2 − 4x + 7.

Can someone help please

Answers

Answer:

x ≈ 7.7

Step-by-step explanation:

Using Pythagoras' identity on the right triangle on the right side

let the third side be y , then

y² + 4² = 10²

y² + 16 = 100 ( subtract 16 from both sides )

y² = 84

Using Pythagoras' identity on the right triangle on the left side

x² + 5² = y²

x² + 25 = 84 ( subtract 25 from both sides )

x² = 59 ( take the square root of both sides )

x = [tex]\sqrt{59}[/tex] ≈ 7.7 ( to the nearest tenth )

5 divided by what gets you 0.60

Answers

Answer:

Step-by-step explanation:

12, pls mark as brainliest!!!!

A rectangular plot is 35m long and 30 m broad. A road of uniform width of 2.5m runs along the boundary of the plot inside it. Find the cost of paving the road with bricks at Rs. 10 per m2.

Answers

Answer:

In ko add krne k baad 10 se multiple kro

Answer:

If the sum of two numbers is 128band their difference is 16 then find the number

PLEASE HELP! IM ALMOST DONE WITH THIS ASSIGNMENT PLSSS HELPP ILL GIVE BRAINLIEST SHOW UR WORK

question: solve the solution using substitution.

Answers

Answer:

x = -3

y = -8

Step-by-step explanation:

2y = x - 13

3x = y - 1; let y = 3x + 1

substitute to solve for 'x':

2(3x + 1) = x - 13

6x + 2 = x - 13

5x + 2 = -13

5x = -15

x = -3

solve for 'y':

3(-3) = y - 1

-9 = y - 1

-8 = y

Answer:

(-3,-8)

Step-by-step explanation:

Get one of the variables by themself.

3x = y-1

y = 3x+1

Plug that equation into the other one

2(3x+1) = x-13

Distribute the 2 to 3x+1

6x+2 = x-13

Combine like terms

6x+2 = x-13

-x -x

5x+2 = x-13

-2 -2

5x = -15

Divide by 5 on both sides

5x = -15

÷5 ÷5

x = -3

Find y

3(-3) = y-1

-9 = y-1

+1 +1

y = -8

A baseball is hit from an initial height of 3 feet and reaches a maximum height of 403 feet. Which function could be used to model this situation, where is the height, in feet, after t seconds?

Answers

Answer:A. h(t) = -16(t - 403)^2 + 3

B. h(t) = -16(t - 5)^2 + 3

C. h(t) = -16(t - 3)^2 + 403

D. h(t) = -16(t - 5)^2 + 403

Step-by-step explanation:

Pleasee answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:3.6

Step-by-step explanation:

Answer:

3.6

Step-by-step explanation:

Distance = √(x2 - x1)² + (y2 - y1)²

√(5 - 3)² + (-2 - 1)²

√13 = 3.605

good luck, i hope this helps :)

You roll a 6-sided die. What is the P(roll a 2)?

a
3/6
b
1/6
c
2/6
d
4/6

Answers

Answer:

b; 1/6

Step-by-step explanation:

What is the answer?

Answers

can we see the number onna chart .

Please help! will give brainliest!
Given right triangle ABC with altitude BD drawn from vertex B to hypotenuse AC, find the lengths of AD, BD, and CD.
Keep as improper fraction

Answers

Answer:

AD = 3

BD = 10

CD = 17

Step-by-step explanation:

The requires side lengths are:

[tex]AD = \frac{49}{25}[/tex]

[tex]BD = \frac{168}{25}[/tex]

[tex]CD = \frac{576}{25}[/tex]

Considering triangle BDC, we have:

[tex]BC^2 = BD^2 +CD^2[/tex]

This gives

[tex]24^2 = BD^2 +(25 - AD)^2[/tex]

[tex]576 = BD^2 +(25 - AD)^2[/tex] --------- (1)

Considering triangle ABD, we have:

[tex]7^2 = BD^2 + AD^2[/tex]

[tex]49 = BD^2 + AD^2[/tex] ---- (2)

Subtract (2) from (1)

[tex]576 - 49 = BD^2 -BD^2 +(25 - AD)^2 - AD^2[/tex]

[tex]527 = (25 - AD)^2 - AD^2[/tex]

Expand

[tex]527 = 625 - 50AD + AD^2 - AD^2[/tex]

[tex]527 = 625 - 50AD[/tex]

Collect like terms

[tex]50AD = 625 - 527[/tex]

[tex]50AD = 98[/tex]

Divide both sides by 50

[tex]AD = \frac{98}{50}[/tex]

Reduce fraction

[tex]AD = \frac{49}{25}[/tex]

Recall that:

[tex]49 = BD^2 + AD^2[/tex]

So, we have:

[tex]49 = BD^2 + (49/25)^2[/tex]

[tex]49 = BD^2 + 2401/625[/tex]

Collect like terms

[tex]BD^2 = 49 - 2401/625[/tex]

Take LCM

[tex]BD^2 = \frac{625 *49 - 2401}{625 }[/tex]

[tex]BD^2 = \frac{28224}{625}[/tex]

Take the square roots of both sides

[tex]BD = \frac{168}{25}[/tex]

Also, we have:

[tex]CD = 25 - AD[/tex]

This gives

[tex]CD = 25 - \frac{49}{25}[/tex]

Take LCM

[tex]CD = \frac{625 - 49}{25}[/tex]

[tex]CD = \frac{576}{25}[/tex]

Hence, the requires side lengths are:

[tex]AD = \frac{49}{25}[/tex]

[tex]BD = \frac{168}{25}[/tex]

[tex]CD = \frac{576}{25}[/tex]

Answers

Answer:

161.50

Step-by-step explanation:

Answer:

take $190 and multiply it by 0.15 (28.5) and subtract that from $190= $161.50

Step-by-step explanation:

PLZ MAKE ME BRAINLIEST TRYNG TO REACH TOP RANK ON LEADER BOARD

HELP!!!!!!!!!!!!! PPPPPPLLLLLLLLLLLLllZZZZZZZZZZZZZZZZZZZZ

Answers

56.55 ok ok ok ok ok it made me add on letters

Answer:

56.54866776

Step-by-step explanation:

To find the circumference multiply the diameter of the circle with π (pi) or multiply the radius 2x with pi (π=3.14).

So18x π= 56.54866776

Hope this helps ^-^

(If u like it mark brainliest, plz)

Other Questions

Evaluate (14 + x) = 2 when x = 4. A. 7 O B. 18 C. 11 D. 9 If y= 4x, calculate the value of y when x= 12 . Synthesize How did the four factors of production determine which nations were able to industrialize after Britain? Cite specific examples from the text. Enter the value of 3.4. (6 + 12). Kristin and Joan are both saving monty, Kristin starts with $60 and saves $10 amonth. Joan saves $15 per month. Enter the number of MONTHS it will take fortheir total savings to be the same. is the Sahara desert affected by cold ocean currents. If not please explain why. Thank you! What was the purpose of (SNCC) during the early years of the civil rights era? please help me with this assignment Please help need answer! It takes 43 facial muscles to frown. This is 26 more musclesthan it takes to smile. How many muscles does it take tosmile? What is one way the government combats monopolies? * A. by forcing the monopoly to merge with other companies B. by ordering the monopoly to break up into smaller companies C. by requiring the monopoly to reduce prices to match industry norms D. by charging the monopoly fees that are used to promote innovation in the same industry reread pargraph 5. which of these is evidence that helps to prove the author's point? Need help with biology questions What is the function of the seed? (What does it provide the embryo?) Why did Ted Johnson write paragraph 3 in the letter? A. to assure the property manager that the dog park would not be too expensive B. to explain that a dog park would benefit the health of the dogs in the property C. to demonstrate that it is the property manager's responsibility to build a dog park D. to explain that dogs are happier when they get to play with other dogs PLEASE HELP PLEASE!!! 1/6x + 7 = -41Pls help Im confused pls pls pls pls p Does characteristics and main idea means same?? For brainiest:):):):):):) Need help ! (algebra)