Find the percent of change from 90 to 12.

Answers

Answer 1

Answer:

86.6667% decrease

Step-by-step explanation:


Related Questions

Which of these is the quadratic parent function?



f(x) = x2


f(x) = |x|


f(x) = x


f(x) = 2x

Answers

Answer:

the first one

f(x) = x²

its making me write more

Select the word to make the statement true.

Similar polygons are ____ the same size.
A. always
B. sometimes
C. never

Answers

Answer:

B.

Hope that helps!

Step-by-step explanation:

Answer:

B. Sometimes

Step-by-step explanation:

Hope this helps!

how do i find the volume in 3d shapes, please help i need to get better grades

Answers

Length*Width*Height
The teacher needs to give you the values

a
The expression ax²+bx+c is divisible by x-1, has a
remainder of 2 when divided by x+1 and has a remainder of 8 and when divided by x-2 find the values of a, b, and c and
factorise completely.​

Answers

Answer:

(x - 1)(3x + 2)

Step-by-step explanation:

By the Remainder theorem

Given expression is divisible by x - 1 then f(1) = 0

when divided by (x + 1) then f(- 1) = 2

when divided by x - 2 then f(2) = 8

Substitute x = 1, x = - 1, x = 2 into the expression , that is

a + b + c = 0 → (1)

a - b + c = 2 → (2)

4a + 2b + c = 8 → (3)

Subtract (1) from (2) to eliminate a and c

- 2b = 2 ( divide both sides by - 2 )

b = - 1

Subtract (1) from (3) to eliminate c

3a + b = 8 ← substitute b = - 1

3a - 1 = 8 ( add 1 to both sides )

3a = 9 ( divide both sides by 3 )

a = 3

Substitute a = 3, b = - 1 into (1) and evaluate for c

3 - 1 + c = 0

2 + c = 0 ( subtract 2 from both sides )

c = - 2

Then a = 3, b = - 1, c = - 2

Thus

ax² + bx + c

= 3x² - x - 2

= (x - 1)(3x + 2) ← in factored form

Here is an expression: 4•3^x


a. Evaluate the expression when x = 2


b. Evaluate the expression when x = 4.

Answers

Answer:

First one is 36 and second one is 324!!!

42
40
x
Find the unknown side length, x. Write your answer in simplest radical form.
A. 2.41
B. 429
C. 48
D. 58

Answers

Answer:

Your answer is D. 58

Step-by-step explanation:

x= [tex]\sqrt{(42^2+40^2)}[/tex]

Please, somebody, solve this quick and reply with step by step explanation AND provide all steps of working!
If these will be there then I will mark them as BRAINLIEST!

Answers

Answer:

For a trapezium of height H, parallel side 1 X, and parallel side 2 Y, the area is:

A = (1/2)*H*(X + Y)

with this we can complete the table.

a)

Here we know:

X = 7cm

Y = 11cm

H = 6cm

Then: A = (1/2)*6cm*(7cm + 11cm) = 54 cm^2

b)

Here we know:

X = 8 m

Y = 10 m

A = 126 m^2

Then:

126 m^2 = 0.5*H*(8m + 10m)

126 m^2 = H*9m

126 m^2/9m = H = 14m

Then the height of this trapezoid is 14m

c)

Here we know:

X = 5mm

H = 8mm

A = 72 mm^2

Then:

72 mm^2 = 0.5*8mm*(5mm + Y)

72 mm^2 = 4mm*(5mm + Y)

72mm^2/4mm = 5mm + Y

18 mm = 5mm + Y

18mm - 5mm = Y

13 mm = Y

Then the parallel side 2 is 13 mm long.

Analyze the diagram below and complete the instructions that follow.

Find the value of x.

Answers

Answer: I believe the answer is C.

Step-by-step explanation: In special case isosceles right triangles the hypotenuse is always equal to a · √2. With a=5√2 we can set up the equation 5√2 · √2 = 10.

Isabel has 6.75 bags of coffee. A full bag weighs 5.2 pounds. How many pounds of coffee does Isabel have? *

11.77
11.95
31.5
35.1

which one ^

Answers

Answer:

35.1

Step-by-step explanation:

6.75x5.2=35.1

33°
114"
33
A) right scalene
B) acute scalene
C) obtuse isosceles
D) equilateral

Answers

Answer:

b acute I think so ok but that was a weird quistoin

Which of the following represents a polynomial expression? Select one: A. 2x + 3log(x) + 5 B. 10x−−√ − 2 C. (x + 1)(x - 1) D. 4x + 2(3x + 3)

Answers

Answer:

none!

Step-by-step explanation:

Answer:

The answer is C

Step-by-step explanation:

Explanation: I searched up "what don't polynomials have"

if f(x) =2x/X-5

Find f^-1(x).​

Answers

Step-by-step explanation:

Let f(x)=y

y=2x/X-5

y(x-5)=2x

xy-5y=2x

x(y-2)=5y

x=5y/y-2

Apply x=5y/y-2, on f(x)

f(5y/y-2)=2(5y/y-2)/[(5y/y-2)-5]

=(10y/y-2)/[(5y-5y+10)/y-2]

=10y/10

=y

So f^-1(x)=5y/y-2

9 + 15m



factorisation of algebraic expression that contain common factor​

Answers

The common factor would be 3 because 3 is the highest multiple of 15 and 9

Answer:3(3+5m)

Step-by-step explanation:

PLEASE HELP ILL GIVE YOU BRAINLIST !!! I DONT UNDERSTAND THIS

Answers

Answer:c=2 √1129 or c=−2 √1129

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

c^2=4516

Step 2: Take square root.

c=±√4516

c=2√1129 or c=−2√1129

What the other dude said ‍♂️

I have to find the value of x

k so I tried, and honestly I'm not sure what I'm doing wrong but I'm not sure how to solve it. If anyone could help that would be lovely :') thank youu​

Answers

Answer:

x = 25

Step-by-step explanation:

A quadrilateral is inscribed in a circle, so it is a cyclic Quadrilateral.

Opposite angles of a cyclic quadrilateral are supplementary.

Therefore,

3x + 21y = 180°.....(1)

2x + 26y = 180°.....(2)

From equations (1) & (2)

3x + 21 y = 2x + 26y

3x - 2y = 26y - 21y

x = 5y

y = 1/5 x

Plug y = 1/5 x in equation (1)

3x + 21*1/5x = 180

15x + 21x = 180*5

(Multiplying both sides by 5)

36x = 900

x = 900/36

x = 25

Alex was thinking of a number. Alex doubles it the adds 20 to get answer of 22.7. What was his original number.

Answers

Answer:

2.7

Step-by-step explanation:

Let the number alex think be x

Answer = 22.7

According to the question,

x + 20 = 22.7

x = 22.7 - 20

x = 2.7

Therefore, his original number is 2.7

Plz mark me as brainliest

Have a great day

Help me Please I will give brainliest! (please dont answer if you dont know)

Answers

Answer:

16.5 feet or

about 17 feet long.

Step-by-step explanation:

A = bh

Squares have equal side lengths all around so with there being 4 sides, you will take 66 and divide by 4.

66 ÷ 4 = 16.5

So it is about 17 feet

The triangle below are similar find the lengths of the missing side.

Answers

Answer:

The answer is b =9

Step-by-step explanation:

20:12=15:b

5:3=15:b

cross multiply

5×b=3×15

5b=45

divide both sides by 5

b=45÷5

b=9

What is the square root of ten rounded to the nearest 100th

Answers

Answer:

3.162

Step-by-step explanation:

√10 = 3.162

Answer:

Step-by-step explanation:

I hope I can use a calculator and not use logs or a type of long division!

√10 = 3.16227

The hundredth place is the 6. The next place is a 2 which does not have any effect on the 6.

Answer: 3.16

how far is 18 from -14 on a number line

Answers

Answer:

32

Step-by-step explanation:

add the absolute value of -14 and 18

yall the ones with boxes help

Answers

Answer:

16

Step-by-step explanation:

If the store sells 2 printers for every 5 computers

40/5 is 8. this means there are 8 sets of 5 computers

8x2 is 16 since for every 5computers, 2 printers are sold

Which property of equality is used to solve the equation 5n = 50?
What property of equality would you use to solve the equation n/4 = 16.

Answers

Answer:

To solve 5n = 50, I would use the property of division.

To solve n/4 = 16, I would use the property of multiplication.

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX


URGENT!!!!

Find Perimeter of the square with the side 15 in.
Use formula P=4s
100 in
60 in
225 in
30 in

Answers

Answer:

It's 60 in

Step-by-step explanation:

P = 4s

P = 4 x 15

P = 60 in

what is the value of x?
12
15
20
24​

Answers

Answer:

15

Step-by-step explanation:

What is the solution to the equation below? Round your answer two decimal places. 3^x = 9.2

Answers

3x = 9.2 ⇒ x = 2.02000606

Answer:

X=2.02

Step-by-step explanation:

What's the answer to this questions?

Answers

i believe the answer is 2 :) .

how to round 8.798 to the nearest cent

Answers

Answer:

8.80

Step-by-step explanation:

Answer:

8.80

Step-by-step explanation:

The hundredths place is occupied by the 9.

First, drop the last 8.

8.79

Since the digit to the right of the dropped 9 is an 8, you round up.

8.79 becomes 8.80

Answer: 8.80

Find the value of x.

Answers

Answer:

[tex]x + 1 + x + 3 = 180[/tex]

by vertically opposite angle theorem

[tex]x + x + 1 + 3 = 180[/tex]

[tex]2x + 4 = 180[/tex]

[tex]2x = 180 - 4 = 176[/tex]

[tex]x = \frac{176}{2} [/tex]

[tex]x = 88[/tex]

have a nice day

Use the Pythagorean Theorem to confirm the three sides of a right triangle.
3. a = 5, b = 12,c = 13
4. a = 4, b = 10,0 = 20

Answers

Answer:

3) confirmed right triangle

4) not a right triangle

Step-by-step explanation:

3) 5^2 + 12^2 = 13^2

25 + 144 = 169

169 = 169

4) 4^2 + 10^2 = 20^2

16 + 100 = 400

116 does not equal 400

$4000 is compounded annually at a rate of 7% for 7 years.

Answers

Answer:

hey i think its $16,819 i'm so sorry if i get it wrong

Step-by-step explanation:

Other Questions
Solve for hh 5 = -30Make sure to show your work for full points! Maths Equations if you solve it right I will give you the brainiest! Don't solve it only for points bc I will report you! if you can't solve it just leave it for someone who can. Which part of the following sentence is a dependent clause? Whenever the sky is overcast, I fear a thunderstorm is coming.A) Whenever the sky is overcastB) The sky is overcastC) I fear a thundestorm is comingD) I fear a thunderstorm Please please please help!I MET a traveller from an antique landWho said: Two vast and trunkless legs of stoneStand in the desert ... Near them, on the sand,Half sunk, a shattered visage [face] lies, whose frown,And wrinkled lip, and sneer of cold command,Tell that its sculptor well those passions readWhich still survive, stamped on these lifeless things,The hand that mocked them, and the heart that fed;And on the pedestal these words appear:"My name is Ozymandias, king of kings:Look on my works, ye Mighty, and despair!"Nothing beside remains. Round the decayOf that colossal wreck, boundless and bareThe lone and level sands stretch far away.Select one piece of evidence that supports the situational irony of the poem. Nothing beside remains I met a traveler Its sculptor well those passions read Buford is arguing that genetically modified (GM) food crops have many benefits, and that they should continue to be raised. Which of the following statements provides the STRONGEST evidence in support of Bufords argument?a. In many cases, pest-resistant GM plants still require the use of insecticides.b. GM plants incorporate genes that they never would have obtained naturally.c. GM foods have been widely available for two decades, and no safety issues have been reported.d. Genetic technology is increasing the number and variety of plants that are raised for food. In both Japan and China, A elections are not free or fair B. only one political party is allowed C. there is no freedom of speech D women face discrimination Please select the best answer from the choices provided B OD The curve formed by a quadratic equation is called a...? When Fallon is on the stage at the White House, his persona is:A. serious and formal.B. silly and outgoing.C. humble and shy.D. calm and grateful.SUBMIT Solve for x and y.?? having trouble Read the description of the centrioles. What is their function? If the function h is defined by h(x)=[tex]x^{2}[/tex]-3x+5,then h(2x+1)= What Caused the Great Depression? Help pleaseeeeeee !!!! ?? How might the increase of volcanic eruptions affect Earth?A. It might produce more ozone in the atmosphereB. It might decrease temperature across EarthC. It might increase the carbon dioxide in the atmosphereD. It might cause the Earths surface to absorb more oxygen. Davie and Horatio are riding their motorbikes on a scenic tour that is 80 miles long. Davie rides at 20 miles per hour and leaves 90 minutes before Horatio. How fast must Horatio ride to finish at the same time as Davie?24 mph24.5 mph32 mph33.3 mph what the steps of Cellular Respiration in the correct order? Mamma Mia musical summary Does the Second Amendment need to be "revisited" in 2021? yes and why?I need help pleasee My sister promised to buy me 6 scrunchieas for every two laps I completed. I ran the whole race, which was 12 laps. How many scrunchieas did my sister buy me? A burning match will burn more vigorously in pure oxygen than in air because _________ . Select one: a. oxygen is a catalyst for combustion b. nitrogen is a reactant in combustion and its low concentration in pure oxygen catalyzes the combustion c. oxygen is a product of combustion d. nitrogen is a product of combustion and the system reaches equilibrium at a lower temperature e. oxygen is a reactant in combustion and pure oxygen increases the reactant concentration