help plz it's a 9th grade question ​

Help Plz It's A 9th Grade Question

Answers

Answer 1
the answer is
x= 45/7
y=426/7

Related Questions

what do you need to add to 2 4/7 to make 4

Answers

answer=0.58

Step-by-step explanation:

24/7= 3.42 ,so you subtract this from 4 to get 0.58

Jenny got a haircut before school started. The stylist cut 0.36 inch off Jenny's hair. Which fraction and percent are equivalent to the amount of Jenny's hair the stylist cut off?

Answers

Answer:

The fraction equivalent to the amount of Jenny's hair the stylist cut off is [tex]\frac{9}{25}[/tex] inch.

The percentage equivalent to the amount of Jenny's hair the stylist cut off is 36% inch.

Step-by-step explanation:

From the question, the stylist cut 0.36 inch off Jenny's hair.

To determine what fraction is equivalent to the amount of Jenny's hair the stylist cut off, we will express 0.36 inch as a fraction.

[tex]0.36 = \frac{36}{100}[/tex]

Then, we will reduce [tex]\frac{36}{100}[/tex] to a fraction in its lowest term

[tex]\frac{36}{100} = \frac{9}{25}[/tex]

Hence, the fraction equivalent to the amount of Jenny's hair the stylist cut off is [tex]\frac{9}{25}[/tex] inch.

For the percentage equivalent to the amount of Jenny's hair the stylist cut off, we will express [tex]\frac{9}{25}[/tex] as a percentage. That is

[tex]\frac{9}{25} \times 100[/tex]%

= 36%

Hence, the percentage equivalent to the amount of Jenny's hair the stylist cut off is 36% inch.

which expression is equivalent to sin(pi/12)cos(7pi/12)-cos(pi/12)sin(7pi/12)? a) cos(-pi/2) b) sin(-pi/2) c) cos(2pi/3) d) sin(2pi/3)

Answers

Answer:A

Step-by-step explanation:

Edge 2020

[tex]sin(\frac{\pi }{12})cos(\frac{7\pi}{12}) -cos(\frac{\pi }{12})sin(\frac{7\pi }{12})[/tex] is equivalent to [tex]sin(\frac{-\pi }{2} )[/tex].

What is trigonometric expression?

Trigonometric expressions are non-routine appearing problems. They are unfamiliar because the language of trigonometry looks foreign and complicated. In order to learn how to simplify or reduce the complexity of trigonometric expressions, we first need to examine the identities we need to utilize.

It is one of the identities of trigonometry

sinAcosB - cosAsinB = sin(A - B)

Given expression

[tex]sin(\frac{\pi }{12})cos(\frac{7\pi}{12}) -cos(\frac{\pi }{12})sin(\frac{7\pi }{12})[/tex]

It is in form of sinAcosB - cosAsinB = sin(A - B)

⇒ [tex]sin(\frac{\pi }{12})cos(\frac{7\pi}{12}) -cos(\frac{\pi }{12})sin(\frac{7\pi }{12})[/tex] = [tex]sin(\frac{\pi }{12}-\frac{7\pi }{12} )[/tex]

⇒ [tex]sin(\frac{\pi }{12})cos(\frac{7\pi}{12}) -cos(\frac{\pi }{12})sin(\frac{7\pi }{12})[/tex] = [tex]sin(\frac{-6\pi }{12} )[/tex]

⇒ [tex]sin(\frac{\pi }{12})cos(\frac{7\pi}{12}) -cos(\frac{\pi }{12})sin(\frac{7\pi }{12})[/tex] = [tex]sin(\frac{-\pi }{2} )[/tex]

Hence [tex]sin(\frac{\pi }{12})cos(\frac{7\pi}{12}) -cos(\frac{\pi }{12})sin(\frac{7\pi }{12})[/tex] is equivalent to [tex]sin(\frac{-\pi }{2} )[/tex].

Find out more information about trigonometric expression here

https://brainly.com/question/2142049

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I WILL GIVE BARINLEST WHO HELP ME

3

Answers

Answer:

What's the question

Step-by-step explanation:

???

The lengths of the two legs of a right triangle are 2 root 3 and 5 what is the hypotenuse? Leave the answer in simplified radical form.

Answers

Answer:

√37

Step-by-step explanation:

As per Pythagorean theorem:

c = √a² + b²

Substituting values

c = √ (2√3)²+5² = √12 + 25 = √37

What is the quotient of (3x^4 – 4x^2 + 8x – 1) ÷ (x – 2)

Answers

Answer:

2      3    0   -4    8

+            6    12   16

       3    6     8    24

A:3x^3+6x^2+8x+24/x-2

Answer:

(3x^4-4x^2+8x-1)÷(x-2)

help will give brainly and pts.

Answers

the first option is the correct option.

PLZ HELP I DONT UNDERSTAND (show steps)

Answers

Answer:

a= −b/x

Step-by-step explanation:

Let's solve for a.

ax2+bx=0

Step 1: Add -bx to both sides.

ax2+bx+−bx=0+−bx

ax2=−bx

Step 2: Divide both sides by x^2.

ax2x2=−bxx2

a=−bx

Answer:

Step-by-step explanation:

perfect sqaure formula (u+w)²=u²+2uw+w²

ax²+bx+c=0  divide by a

[tex]x^{2} +\frac{bx}{a} + \frac{c}{a} =0[/tex]  so u=1, 2uw=2*1*w= b/a, so w=b/2a

[tex](x^{2}+ \frac{bx}{a} +\frac{b^{2} }{4a^{2} } ) +\frac{c}{a} -\frac{b^{2} }{4a^{2} }=0[/tex] now that we formed the perfect sqare solve

[tex](x +\frac{b}{2a} )^{2} +\frac{c*4*a-b^{2} }{4a^{2} } =0[/tex] but we can factor a negative in front of the fraction

[tex](x+\frac{b}{2a} )^{2} -\frac{b^{2} -4ac }{4a^{2} } =0[/tex] now isolate the 2 terms and squareroot both sides

[tex]\sqrt{ (x +\frac{b}{2a} )^{2}} =\sqrt{ \frac{b^{2} -4ac }{4a^{2} } }[/tex] and you will be left with

[tex]x +\frac{b}{2a} =\ + - \frac {\sqrt{ b^{2} -4ac} }{2a }[/tex]  subtract b/2a from both sides

x= [tex]\frac{-b+ - \sqrt{b^{2}-4ac } }{2a}[/tex]

Which expression is equivalent to 11 - (-3 5/8)?

Answers

Answer:

11 - (-3 5/8)

= 11 + 3 5/8 ( 2 negative signs become positive)

answer is B.11 + 3 5/8

Step-by-step explanation:

Answer:

The answer is 11 + 3 5/8

Step-by-step explanation:

I did it on khan

Solve the equation.

Hint: Rewrite the equation!!!

16 = - 4(y + 3)

Answers

Answer:

Step-by-step explanation:

16 = - 4y - 12

Bringing like terms on one side

16 + 12 = - 4y

28 = - 4y

28/-4 = y

-7 = y

The answer:
16=-4(y+3)
16=-4y-12
16+12=-4y
28=-4y
-7=y

(0, -19), (20, 15)
I am having trouble

Answers

Answer:

-38285

Step-by-step explanation:

this is what my calculator told me

sorry but ask someone else

I don´t know what slopes are

so sorry

HELP ME RIGHT NOW!!!
1. How can you distinguish between linear and exponential functions?
2. How do increasing linear functions and exponential growth functions compare?
3. Give an example of a linear function and an exponential function.

Answers

Answer:

linear is when the graph shows a straight line

Answer:

linear is when the graph shows a straight line

Step-by-step explanation:

If 7 + 5 i is a zero of a polynomial function P(x) with real coefficient, then which is also a zero for P(x)

Answers

Answer:

ppap

Step-by-step explanation:

fhfhhffhff my name is denish paudyal

Answer:

7 - 5i

Step-by-step explanation:

complex zeros occur as conjugate pairs , thus if 7 + 5i is a zero, then

7 - 5i is also a zero

Can Someone Help please

Answers

Just put the x number for x and solve equation

WILL MARK BRAINLIEST!!

1. Find 7% sales tax on a $48 purchase.

2. Find 6.5% sales tax on a $25 purchase.

3. You markup a $25 tool by 45%. What is the new price?

4. You markup a $40 watch by 75%. What is the new price?

5. You discount a $120 TV by 44%. What is the new price?

6. You discount a $65 coat by 25%. What is the new price?

PLEASE EXPLAIN HOW THAT ANSWER IS CORRECT, PLEASE HURRY! I NEED THIS FILLED OUT ASAP.

Answers


Answer/Explanation:
1. 48 x 0.07 = $3.36
2. 25 x 0.065 = $1.63
3. 25 x 0.45 = 11.25, 11.25 + 25 = $36.25 (New price is $36.25)
4. 40 x 0.75 = 30, 30 + 40 = $70
(New price is $70)
5. 120 x 0.44 = 52.80, 120 - 52.80 = 67.2 (New price is $67.20)
6. 65 x 0.25 = 16.25, 65 - 16.25 = 48.75
(New price is $48.75)

Hope this helps :)

The temperature of a place was 32⁰C on Friday. On Saturday it rose by 4⁰C, then rainfall on Sunday caused the temperature to fall by 7⁰C. What was the final temperature on Sunday?

Answers

Given :

The temperature of a place was 32⁰C on Friday. On Saturday it rose by 4⁰C, then rainfall on Sunday caused the temperature to fall by 7⁰C.

To Find :

The final temperature on Sunday.

Solution :

Temperature on Saturday = initial temperature + 4⁰C

= 32⁰C + 4⁰C

= 36⁰C.

Temperature on Sunday = temperature on Saturday - 7⁰C

= 36⁰C - 7⁰C

= 29⁰C

Therefore, final temperature on Sunday is 29⁰C.

Hence, this is the required solution.

Susan won $2000 and invested it into an account with an annual interest rate of 3.2%. If her investment were compounded monthly, which expression best represents the value of her investment after t years

Answers

Answer:

FV= PV*(1+i)^t

Step-by-step explanation:

Giving the following information:

Initial investment (PV)= $2,000

Interest rate (i)= 3.2% = 0.032

Number of periods= t

To calculate the future value (FV) of the investment, we need to use the following formula:

FV= PV*(1+i)^t

For example, Susan invests for 4 years:

FV= 2,000*(1.032^4)

FV= $2,268.55

The expression best represents the value of her investment after t years is [tex]FV= PV\times (1+i)^t[/tex]

Calculation of the expression:

Since

Susan won $2000 and invested it into an account with an annual interest rate of 3.2%.

Here Number of periods= t

Therefore we can conclude that The expression best represents the value of her investment after t years is [tex]FV= PV\times (1+i)^t[/tex]

Learn more about an account here:https://brainly.com/question/3096424

The price of Stock A at 9 A.M. was​ $15.75. Since​ then, the price has been increasing at the rate of​ $0.05 per hour. At​ noon, the price of Stock B was​ $16.53. It begins to decrease at a rate of​ $0.13 per hour. If the stocks continue to increase and decrease at the same​ rates, in how many hours will the prices of the stocks be the​ same?
The prices of the stocks will be the same
nothing ​hour(s) after noon.

Answers

Answer: I think is 3.5

Step-by-step explanation:

I need help write in line slope-intercept from ​

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

The equation for the line in slope-intercept form is

[tex]y=mx+b[/tex]

where

m is the slopeb is the y-intercept

For example, a line of the form [tex]y=-3x+2[/tex] can be termed as the line of an equation in slope-intercept form after comparing with it.

[tex]y=-3x+2[/tex]

where

[tex]m=-3[/tex]y-intercept = b = 2

Elliot has a total of 26 books. He has 12 more fiction books than nonfiction books. Let x represent the number of fiction books and y represent the number of nonfiction books.

This system of equations models the number of books.

x + y = 26

x – y = 12

Elliot added the two equations and the result was 2x = 38.

Solve the equation. How many fiction books does Elliot have?

fiction books

How many nonfiction books does Elliot have?

nonfiction books

Answers

Answer:

fiction= 19 books

non-fiction= 7 books

Step-by-step explanation:

hope this helps :)

Answer:

I'm terrible at explaining so here's a screenshot

- Ripper

Step-by-step explanation:

can someone just fill this in for me and not tell me how to do it

Answers

Answer:

-4, 5, 14, 23, 32

Step-by-step explanation:

Funny, I learning this right now. What??? You expected an explanation? Nope.

Answer:

y values going left to right : -4, 5, 14, 23, 32

Step-by-step explanation:

I graphed it. i'll give you the link to desmos. It'll help you

i need help plz its due in 30 minutes

Answers

Answer:

is 2/3 times - 13/12=- 5/12 times

Step-by-step explanation:

A line passes through the point (-4,9) and has a slope of
-3/2
Write an equation in point-slope form for this line.

Answers

Answer: y - 9 = (-3/2) (x - (-4))

Step-by-step explanation:

We can use the formula y-y1 = m(x-x1)

Where (x1,y1) are (-4, 9) and m = -3/2. Plug in the values and we get

y - 9 = (-3/2) (x - (-4))

what proofs should i use for all these steps?

Answers

Answer:

1, 2, 5, 12, 13

Step-by-step explanation:

∠1 = 90 is given, which is a right angle

∠3 = 90 as well because ∠1 and ∠3 are vertically opposite

∠3 = ∠8, because ∠1 and ∠8 are same side exterior angles, which are the same

Therefore ∠3 must be congruent to ∠8  

Plz help me with this question 10 points (I added a photo)

Answers

Answer:

Pretty sure its B

Step-by-step explanation:

What is the value of the expression 2.8*10^7/1.4*10^3

Answers

you divide 2.8 and 1.4 which leads you with 2. subtract the exponents 7 and 3 and you get 4. the answer is 2x10^4 :)

Which function has a greater rate of change?
Function A:
x 1.5 2.5 3.5 4.5 5.5
y –5 0 5 10 15
Function B:
y = –4.5x + 15
Function A has a rate change of BLANK and Function B has a rate change of BLANK so Function BLANK has a greater rate of change

Answers

Answer:

5; -4.5; Function A

Step-by-step explanation:

Rate of change for function A is:

(15 - 10)/(5.5 - 4.5) = 5/1 = 5

Rate of change of function B is:

-4.5 as the slope is the rate of change

Comparing the values:

5 > - 4.5

Function A has a greater rate of change

Answer:

Answer:

5; -4.5; Function A

Step-by-step explanation:

Rate of change for function A is:

(15 - 10)/(5.5 - 4.5) = 5/1 = 5

Rate of change of function B is:

-4.5 as the slope is the rate of change

Comparing the values:

5 > - 4.5

Function A has a greater rate of change

Your salary is $65,788. If you work fifty 40-hour weeks in a year, what is your hourly wage?

Answers

Answer:

$31.63 per hour

Step-by-step explanation:

$31.63 per hour

40 hour weeks × 52 weeks = 2080 hours

65,788/2080= 31.63

hope this helped,brainliest?

GUYS Can you pls HElp me Ill GIve Brianliest to whoever has the right answer

Answers

Answer:

Y=X

Step-by-step explanation:

Answer: A

Step-by-step explanation:

rise/ run = 7/1

What is absolute value

Answers

The opposite of smth on a number line.

Answer:

Absolute value is the distance of a number from zero

Step-by-step explanation:

for example 5 is 5 from zero -1000 is 1000 from zero absolute value will always be positive

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