Mathematics High School

i need help on this asap

Answers

Answer 1

Answer:

Step-by-step explanation:

Related Questions

2.4x-9.1x+12.5= -39.44
Solve for x

Answers

Answer:

x= 2597/335

Step-by-step explanation:

collect like terms

2.4x-9.1x= -6.7x

-39.44-12.5 = -51.94

-6.7x=-51.94

divide both sides by -6.7

x= 2597/335

Plz help me with this

Answers

The answer would be 5(c+2) = 79
5*c= 5c
5*2= 10
5c+10=79

What is the equation of the line that passes through the point (-1, -7) and has a
slope of 2?

Answers

Answer:

y = 2x - 5

Explanation:

Since the slope is given as 2, we can substitute this into the equation:

y = 2x+b

Now, we can manipulate the point (-1,-7) to be in the form of a y-intercept - (0, y).

Note that a slope of 2 = 2/1, which means the rise = 2(which is added to the y) and run = 1(which is added to the x).

Adding this to our point of (-1,-7), we get:

((-1+1),(-7+2)) = (0, -5)

Therefore -5 is our y-intercept.

Now, substituting -5 into our equation, we get:

y = 2x + -5

Answer:

y=2x-5

Step-by-step explanation:

The slope-intercept form of an equation looks like y=mx+b. Where m is the slope and b is the y-intercept. The slope is already given to us, so m is 2.

To find b use the equation [tex]b=y_1-m*x_1[/tex]. So, to find the y-intercept use b=-7-(2*-1). This equals b=-5.

So, plug in the values to get the final equation y=2x-5.

4% percent of a number is what fraction of that number?

Answers

Answer:

1/25

Step-by-step explanation:

Convert to a fraction by placing the expression over 100 .

Answer : 4/100 and / or 1/25

Step-by-step explanation:

when converting percentages to fractions its always out of 100

for example, if the percentage is 4% then its 4/100

Iqbal and Sachin have bookshelves of the same size and holding books of the same sizes. Iqbal's shelf is 7/8 full and Sachin's shelf is 12/15 full. If 351 more books of the same size are distributed among them, then they can fill their shelves completely. How many books does Sachin have now?
a)
864

b)
865

c)
800

d)
850

Answers

Answer:

540 books

Step-by-step explanation:

It is given that Iqbal's shelf is 7/8 full ..

→ That Means we can say that, iqbal's shelf is (1 - 7/8) = 1/8 is Empty .....

Similarly,

Sachin's shelf is 12/15 full.

→ That Means we can say that, sachin's shelf is (1 - 12/15) = 3/15 is Empty.....

→ Both total Empty = (1/8 + 3/15)

Taking LCM of denominator ,

→ (15+24 /120)

→ 39/120

→ 13/40 part is Empty in both .

Now, it has been said that, when 351 more books are distributed among them , both shelves filled completely .

So, we can say that :----

→ 13/40 part ---------------- 351

→ 1 part ---------------------- 351*40/13 = 1080 = Total Books in Both Selves .

__________________

Now, since bookshelves of the same size and holding books of the same sizes ,,

→ Both have Books in Each = 1080/2 = 540 books .

1. Nimish bought a motorcycle for ₹37,690 and sold it for ₹39,100. Find his
profit or loss.

Answers

Answer:

1410

Step-by-step explanation:

Selling Price= 39100

Buying Price= 37690

Profit= Selling Price - Buying price

=39100-37690

=1410

His profit: ₹39,100 - ₹37,690 = ₹1,410

=> [tex]\frac{1,410}{37.690}[/tex] × 100% ≈ 3.75% (than the original price)

His profit is 3.75% than the original price

ok done. Thank to me :>

D. A car was sold for
$26,350. Its value decreases
by 17% each year.
a) Find an explicit formula
for cost of the car Cn after
the nth year.
b) What is the car's value
after 8 years?
c) After 3 years, how much
has the car's value
decreased?

Answers

a. The explicit formula for the cost of the car in the nth year is $26,350(0.83^n) .

b. The car's value after 8 years is $5,934.79.

c. The decrease in the value of the car is $11,283.41.

The formula that can be used to determine the value of the car with a decline in value is:

FV = P (1 - r)^n

FV = Future value of the car

P = cost of the car

R =rate of deprecation

N = number of years

Cost of the car after n years = $26,350 x (1 - 0.17)^n

$26,350(0.83^n)

Car's value after 8 years = $26,350 x (1 - 0.17)^8

$26,350(0.83^8) = $5,934.79

Decrease in the value of the car after 3 years= cost of the car - value of the car in 3 years

Value of the car in 3 years = $26,350 x (1 - 0.17)^3 = $15,066.59

$26,350 - $15,066.59 = $11,283.41

To learn more about future value, please check: https://brainly.com/question/18760477

Find an ordered pair (x, y) that is a solution to the equation 3x-y=4

Answers

Answer:

(0,-4)

Step-by-step explanation:

3(0) - (-4) = 4

0 + 4 = 4

if Sophia took a bath at 9:36 and finish at 10:30 how much time did she use in taking a bath

Answers

Answer:

54 minutes

Step-by-step explanation:

1) There are 60 minutes in an hour. So, you can do 60-36 to find the first value. (24)

2) Add 24 minutes to 30 and get 54 minutes.

How to you get 28 from the numbers 3, 6, 2, and 8, while only using each number once?

Answers

Answer:

3x6+2+8=28

Step-by-step explanation:

3x6=18

18 + 2 = 20

20 + 8 = 28

Answer:

9 1/3 or 9.33, 28/6 or 4 4/6, 14 and 28/8 or 3 4/8

Step-by-step explanation:

( 1 ) The number 28 divided by 3 gives 9 1/3 or 9.33.

( 2 ) Using a calculator, if you typed in 28 divided by 6, you'd get 4.6667. You could also express 28/6 as a mixed fraction: 4 4/6.

( 3 ) 28 divided by 2 is 14.

( 4 ) Using a calculator, if you typed in 28 divided by 8, you'd get 3.5. You could also express 28/8 as a mixed fraction: 3 4/8.

How many real roots does the quadratic function h (x) = 2x2 – 3x + 6 have?

Answers

3
±
i
√
39
4
I hope this helps

On a coordinate plane, a parabola opens down. It has an x-intercept at (negative 5, 0), a vertex at (negative 1, 16), a y-intercept at (0, 15), and an x-intercept at (3, 0).
The function f(x) = –x2 − 2x + 15 is shown on the graph. What are the domain and range of the function?

The domain is all real numbers. The range is {y|y < 16}.
The domain is all real numbers. The range is {y|y ≤ 16}.
The domain is {x|–5 < x < 3}. The range is {y|y < 16}.
The domain is {x|–5 ≤ x ≤ 3}. The range is {y|y ≤ 16}

Answers

Answer:

Step-by-step explanation:

Domain is all the x's and range is all the y's. There's no reason why you couldn't pop any x into the given equation and calculate it and get a number out. So literally ANY x can be used and found on this graph. So the domain is all real numbers, one of the first two answers is going to be the right one. Now, the range is all the y's on the graph. The problem says that the parabola opens down, which means it has a highest point. There is no graph above that point. That's the point (-1, 16). So 16 is the highest y-value you can find on the graph. All the rest of the y's are smaller. The range is all the y's such that the y's are 16 and smaller...in math that's written {y | y <= 16} So the second answer is the right one.

The domain is all real numbers. The range is {y | y ≤ 16}

How to determine the domain and the range?

The attached graph completes the question

Calculating the domain

The function is given as:

f(x) = -x² - 2x - 15

The above function is a parabola or a quadratic function.

Quadratic functions have their domain to be the set of all real numbers.

Hence, the domain is all real numbers.

Calculating the range

On the graph, we have the maximum value of y to be:

Maximum = 16

Because the parabola opens down, the range would be:

y ≤ 16

Hence, the range is {y | y ≤ 16}

Read more about domain and range at:

https://brainly.com/question/2264373

#SPJ6

Mario started his homework at 3:30 he finished 25 minutes later what time did he finish his homework

Answers

Answer:3.55

Step-by-step explanation:

you add the time dude

Find the slope of the line going through the pair of points: (11, 7), (-9, 8)
20
O-20
0 - 20
O 20

Answers

Answer:

A BOOK

Step-by-step explanation:

pretty sure its that

The word BOOK shows a reflection symmetry across a horizontal line.

Hence, option (A) is correct.

What is reflection?

Reflection is basically a mirror image of the shape, in which the image of a given figure changes accordingly to a given line or axis.

Solve with the help of options,

(A)

BOOK

To find the reflection across a horizontal line,

When word B reflected over horizontal line, it is symmetrical

Answer:

the initial height of water.

Step-by-step explanation:

when time equals zero, no water has been drained.

the volume of the tank is unknown however the volume in the tank is 12 at time zero

What is the area of the following circle? Use 3.14 for pi and enter your
answer as a decimal.
p=7
units2

Answers

3.14 x 7 x 7 = 153.86

The national debt of a country is

$27,895,168,401,112. What is this number as a

product of a single digit and a power of 10?

Answers

Answer: [tex]3 \times 10^{13}[/tex]

Explanation:

Highlight the first digit on the very left (2). The 7 right next to it means we'll round that 2 up to a 3. Every other digit becomes a zero.

The number 27,895,168,401,112 rounds to 30,000,000,000,000 which is the number 30 trillion.

It converts to the scientific notation [tex]3 \times 10^{13}[/tex] because we basically start with 3.0 and move the decimal point 13 spots to the right to arrive at 30 trillion as shown above.

x over 2 +2= 15 two step equations

Answers

Answer:

[tex]\boxed{\boxed{\sf x=84}}[/tex]

Step-by-step explanation:

[tex]\sf \cfrac{x}{6} +2=16[/tex]

Multiply both sides of the equation by 6:

[tex]\sf x+12=96[/tex]

Subtract 12 from both sides:

[tex]\sf x=96-12[/tex]

Subtract 12 from 96:

[tex]\sf x=84[/tex]

_________________________________

Answer:

[tex] \sf \: \longmapsto\frac{x}{6} + 2 = 16[/tex]

[tex]\sf \: \longmapsto\frac{x}{6} = 16 - 2[/tex]

[tex]\sf \: \longmapsto \frac{x}{6} = 14[/tex]

[tex]\sf \: \longmapsto \: x = 14 \times 6[/tex]

[tex]\sf \: \longmapsto \: x = 84[/tex]

Step-by-step explanation:

[tex]\fbox {\fbox {\fbox {\fbox{ \pink{HeavenMistress}}}}}[/tex]

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