Mathematics High School

HELP ME PLZZZZ
its really hard and i cant solve it i have two more quetions to answer and thats it so plz help

Answers

Answer 1

Answer:

(-1, -6)

Step-by-step explanation:

Related Questions

I need to find the missing angles

Answers

Can you explain well

Please help
Is (6, 3) a solution to this system of inequalities?

x + 3y ≥ 15
10x + 3y > 3

Answers

Answer:

Graph both inequalities and see if the point lies in the overlapping shaded region.

Step-by-step explanation:

Two trucks leave a warehouse at the same time, traveling in opposite directions. The rate of the faster truck exceeds that of the slower truck by 2 miles per hour. After 5 hours, they are 315 miles apart. What are the rates of the trucks?

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Step-by-step explanation:

the slower truck travels x miles in 5 hours.

the faster truck travels x + 5×2 = x + 10 miles in 5 hours.

so,

x + x + 10 = 315 miles

2x = 305 miles

x = 152.5 miles (in 5 hours)

therefore, the slower truck's speed was 30.5 mph.

the faster truck's speed was 30.5 + 2 = 32.5 mph.

what is 1/8 divided by 2 3/4?A 1/32B 2 1/3C 1/22D 2 1/2

Answers

Answer: It is letter C. 1/22

Step-by-step explanation:

Change 2 3/4 to an improper fraction to get 11/4, then multiply 1/8 by the reciprocal of 11/4 which is 4/11.

1/8 x 4/11= 4/88

4/88 simplified = 1/22

4,268 ÷ 2 = n.

Find n.

A. 1,324

B. 1,234

C. 2,134

D. 2,314

Answers

Answer:

C.2,134

Step-by-step explanation:

4÷2=2

2÷2=1

6÷2=3

8÷2=4

Answer:

Step-by-step explanation:

Had that same question and I just guessed and got it right

A type of green paint is made by mixing 2 cups of yellow with 3.5 cups of blue.
Find a mixture that will make the different shade of green that is more yellow.

Answers

Answer:

Use 1.75 cups of blue and 1 cup of yellow

Step-by-step explanation:

The given problem can be placed in the category of ratios and proportions. There is a ratio of color mixing which contains the proportion of two colors i.e blue and yellow. When we use 2 cups of yellow with 3.5 cups of yellow then we get green color so if we mix half of their amounts then we can get less or simply half amount of color too. Hence adding 1 cup of yellow and 1.75 cup of blue will give us small amount in result.

I hope this helps have a great day :)

What is the solution to the 2nd degree equation below?x² + 2x + 4 = 0

Answers

Answer:

x = (−2 ± √−12)/2

Step-by-step explanation:

Using the quadratic formula (search it up if you don't know what it is, but it's basically the first thing in the pic):

A line has a slope of 7 and includes the points (-5, a) and ( -6, 1). What is the value of a?

Answers

Answer:

a = 8

Step-by-step explanation:

First find the equation of line using

y-y1=m(x-x1) --- m=slope = 7 and x1= -6 and y1= 1

y-1=7(x-(-6))

y-1=7x+42

y=7x+43

now let x be -5 to find y which is a

y=7(-5)+43

y=-35+43

y=8

so a = 8

Help me please!! I don’t understand

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Answer:

Step-by-step explanation:

what is 1/4+3/8+1/2+5/8+3/4+7/8+1+1 1/4

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Answer:

5.625 which is 5 5/8.

Step-by-step explanation:

Write an equation of the line that is parallel to the y-axis and goes through the point (-2, 5)

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f it is parallel to the y-axis, it is a vertical line passing through (-2 ,5). The equation is just

x = -2

Robert graded his friend Sam's practice test and a him a 72% Sam checked it again in found that he really made a 80% Robert said relax i only made an error of 8%Is robert correct

Answers

Answer:

Step-by-step explanation:

Use the formula, difference/original. The difference is 8%. The original is 72%.

The equation would be: 8/72

Which is 1/9

1/9 = 11.1%

So he made a mistake of 11%

The price,
P of tickets at a movie theater since it opened in 2001 can be modeled by the linear equation shown, where t is the number of years since 2001. P = 8.75 + 0.35t
What is the meaning of the P
-intercept in this scenario?

the price of a ticket in
2001
the price of a ticket in 2001

the increase in ticket price per year
the increase in ticket price per year

the total number of years the theater has been open
the total number of years the theater has been open

the difference in the price of a ticket in
2001
and the price in
2011

Answers

Answer:

Step-by-step explanation:

You have to look at the second term to be sure of the meaning of t - 15n

What the given term says is that the total number of tickets sold (p) will decrease by 15 times the number of increases that there are.

The other term says that the cost of 1 ticket will increase that each ticket will increase by 2 dollars for each change in the ticket prices providing that change is 2 dollars.

C is out of the question. The information talks about 2 dollars per increase which is the first term.

A is not quite correct. It implies there is exactly 1 ticket increase. The crorect answer is the ticket increases can be a number of times (n)

The answer is B

The 13th arithmetic sequence of whose common difference is d=7 and first term is A1=3

Answers

Answer:

Step-by-step explanation:

difference = 7

A1 = 3

so let's imagine this arithmetic sequence as

3, 10, 17, 24 etc....

mathematically the sequence can be described as

An = a1 + (n - 1) d

A13 = 3 + (13 - 1) 7 = 3 + 12*7 = 87

Do Now 13.2:
Green light has a frequency of 5.71 x 10' Hz.
Calculate the energy of a green light photon.
(SHOW ALL WORK for FULL CREDIT!)

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Answer:

Not Step-by-step explanation:

Not enough info

please help me i’m being timed!!!

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Answer:

Step-by-step explanation:

The heaviest pig on the farm weighs 100 pounds

The points in the table lie on a line. Find the slope of the line.

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5/2 or 2.5
Hope this helps!

If f(x) = 4x − 1 and g(x) = −3x + 2 (a) Find ℎ(x) = f(x) + g(x)

Answers

Answer:

x+1

Step-by-step explanation:

4x - 1 + (-3x) + 2 = x + 1

f
(
x
+
2
)
=
3
x
+
10
Explanation:
f
(
x
+
2
)

means replace all the

x
s

with

(
x
+
2
)
f
(
x
)
=
3
x
+
4
f
(
x
+
2
)
=
3
(
x
+
2
)
+
4
Now simplify
f
(
x
+
2
)
=
3
x
+
6
+
4
f
(
x
+
2
)
=
3
x
+
10

Write an equation of the line that passes through (0, 6) and is parallel to y=5x-3

Y=

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Answer:The answer should be y = 5x + 6

Step-by-step explanation:

PLSSS HELP THIS IS HARD ANYONE

Answers

Answer:

270 degrees counterclockwise rotation/ the last answer

Step-by-step explanation:

reflection over the y axis wouldn't work bc the shape would still be a horizontal rectangle

dilation would change the size of the shape

and translation wouldn't map it correctly bc it would still be turned the wrong way

Answer:

270 degrees counterclockwise rotation

Step-by-step explanation:

you can use the formulas, but if you don't know them you can always draw

270 degrees counterclockwise = 90 degrees clockwise

(x,y) -> (y,-x)

A'(1,-2) -> A(-2,-1)

B'(3,-2) -> B(-2,-3)

C'(3,-5) -> C(-5,-3)

D'(1,-5) -> D(-5,-1)

6÷4(7+8)= 8-6(4+9)= 4÷8(9+3)=

Answers

Answer:

6÷4(7+8) = 22,5

8-6(4+9)= 26

4÷8(9+3)= 6

Step-by-step explanation:

6÷4(7+8)= 6÷4(15)= 1,5 × 15= 22,5

8-6(4+9)= 8-6(13)= 2 × 13= 26

4÷8(9+3)= 4÷8(12)= 0,5 × 12= 6

Your bill at a restaurant is $68 and you want to leave a %20 tip what is the total amount you will leave

Answers

Answer:

$81.6

Step-by-step explanation:

You multiply 0.2 by 68, in which you will get 13.6, and then you add that to 68.

Select all expressions that show the distance between P and Q
DISCLAIMER THERE COULD BE MULTIPLE ANWSERS
A 5−(−8)
B 5+|−8|
C |−8+5|
D 5+(−8)

Answers

Answer:

A and B

Step-by-step explanation:

5-(-8) = 5+ 8= 13 (the distance between -8 and 5)

5+|-8| = 5 +8 = 13

What is the distance between the points (5, 1) and (-3, -5)?

Answers

Answer: 10

Step-by-step explanation: d = √(x^²-x^₁)^2+(y^²-y^₁)^2 d = √ (-3-5)^2+ (-5-1)^2 d = √(-8)^2 + (-6)^2 d = √64+36 d = √100 d = 10

Using the scale 1/2 inch = 100 miles, figure out the number
of actual miles represented by 1/4 inches.

Answers

Answer:

50 miles

Step-by-step explanation:

Multiply the given scale numbers by 1/2 to find your answer:

1/2 in = 100 mi

(1/2)(1/2 in) = (1/2)(100 mi) . . . . multiply the ratio values by 1/2

1/4 in = 50 mi

Pam and Erin are both planting gardens for their backyards. They want their gardens to be proportional. If pams garden has a length of 16 feet and a width of 12 feet, what length does Erin need if the width of her garden is 21 feet?

Answers

Step-by-step explanation:

Pam and Erin want the gardens to be proportional.

proprtional- equal

Pams garden has a length of 16 and width of 12. To find the area of Pam's garden multiply the length by the width.

16×12= 192

Now that we know the area of Pam's garden, we can set up and equation for Erin's garden. Since they have to be equal we know that Erin's garden should equal 192. Thus we solve for the length by dividing the width from the total.

192÷21=9.14

The volume of a room is 640 cubic feet. If the length is 10 feet and the width is 4 feet, find the height

Answers

Answer:

Step-by-step explanation:

Divide 640 by 40.

[tex]640 = x \times 10 \times 4[/tex]

[tex]640 = 40x[/tex]

Divide both sides by 40

[tex] \frac{640}{40} = \frac{40x}{40} \\ [/tex]

[tex]x = 16[/tex]

Thus the height would be 16 feet .

Who can help me on this? NEED OF HELP!

Answers

Answer:

25+25 = 50

sum means +

Integers are positive and negative numbers, no decimals or fractions though

2(5 - 8x) -13 = 9(1 - x) -12

Answers

2 (5 - 8x) - 13 = 9 (1 - x) - 12

10 - 16x - 13 = 9 - 9x - 12

10 - 13 - 16x = 9 - 12 - 9x

- 3 - 16x = - 3 - 9x

- 3 + 3 = - 9x + 16x

0 = 7x

0/7 = x

0 = x

_____

Hope it helps ⚜

Answer:

x = 0

Step-by-step explanation:

2(5 - 8x) - 13 = 9(1 - x) -12 => 10 - 16x - 13 = 9 - 9x - 12=> -3 - 16x = -3 - 9x=> 0 = 16x - 9x=> 0 = 7x => x = 0

Conclusion:

Therefore, the answer is 'x = 0'

!! Hoped this helped !!

[tex]BrainiacUser1357[/tex]

Since 2012, the price of a school lunch at Westown High School has risen at a constant rate. In 2014, the price of a school lunch was $2.25. The price rose to $3.20 by 2019.
Complete the equation that describes the relationship between the price of a school lunch in dollars, P, and the elapsed time in years since 2012,
Write your answer using whole numbers or decimals rounded to the nearest hundredth.

Please help I don’t understand

Answers

Answer:

P = 0.14t +2.25

Step-by-step explanation:

The statement that "the price of a school lunch ... has risen at a constant rate" is telling you that the price can be modeled by a linear equation. If P is the price, and t is years after 2012, you are given two points on the line:

(t, P) = (0, 2.25) and (7, 3.20)

You can use these points to find the equation of the line in the usual way.

m = (y2 -y1)/(x2 -x1) . . . . . . slope of a line through (x1, y1) and (x2, y2)

m = (3.20 -2.25)/(7 -0) = 0.95/7 ≈ 0.14

The first point tells you the equation intercept, so the relationship between P and t is ...

y = mx +b . . . . . . . m = slope; b = y-intercept. We're using (t, P) for (x, y).

P = 0.14t +2.25

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HELP ME PLZZZZ its really hard and i cant solve it i have two more quetions to answer and thats it so plz help

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HELP ME PLZZZZ
its really hard and i cant solve it i have two more quetions to answer and thats it so plz help