Substitute x = -3 and y = -5 into the expression -7y² + 9x

Answers

Answer 1

Answer:

-202

Step-by-step explanation:

-7(-5)^2+9(-3)

-7*5^2-27

-7*25-27

-175-25

-202


Related Questions

how to calculate interest on a loan

Answers

Answer:

Gather information like your principal loan amount, interest rate and total number of months or years that you’ll be paying the loan.Calculate your total interest by using this formula: Principal Loan Amount x Interest Rate x Time (aka Number of Years in Term) = Interest.

If you take out a five-year loan for $20,000 and the interest rate on the loan is 5 percent, the simple interest formula works as follows:

$20,000 x .05 x 5 = $5,000 in interest

You might encounter simple interest on short-term loans. However, the way most banks and lenders charge interest is more complicated.

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer: The answer is B.

Step-by-step explanation: This is because the x-axis is days, and the y-axis is pounds. The option B states that Winnie eats 5 pounds of dog food in 2 days, while actually the dog eats 2 pounds of dog food in 5 days.

Answer:

Its B!

Step-by-step explanation:

The X axis represents days and the Y axis represents pounds! 5 is the X axis and 2 is the Y axis! So to make the sentence true, it would be (2,5).

Hope this helps, and don't forget to follow!

can someone help me find the prerimter of this shape

Answers

Answer:

114

Step-by-step explanation:

If this answer helped you then please mark it as brainliest so I can get to the next rank

Pretty sure it’s 132

Which of the following is true?
A. The mean is the least
B. The median is the least
C. The mode is the least
D. The mean, median, and mode are equal

Answers

I think A but I’m not so sure I hope this helps

can somebody help me please.​

Answers

The Y intercept is (0,275) and the X intercept is (125,0). the intercepts should be the point of when the line hits the axis'

Which equation can be used to solve for the value
of x?

Answers

Answer:

the orange one

Step-by-step explanation:

the bottom angles are gonna be the same and a triangle is 180 degrees total so

: Scottie is standing next to a lighthouse on the edge of a cliff overlooking the ocean. The cliff is 30 meters above sea level, and the lighthouse has a height of 15 meters. There is a man fishing in a boat directly below Scottie who has hooked a fish that is 10 meters below the surface of the water. ​

Answers

Complete question :

Scottie is standing next to a lighthouse on the edge of a cliff overlooking the ocean. The cliff is 30 meters above sea level, and the lighthouse has a height of 15 meters. There is a man fishing in a boat directly below Scottie who has hooked a fish that is 10 meters below the surface of the water.

​a. Use positive and negative numbers to represent the locations in relation to sea level.

​Scottie =

​Top of the lighthouse =

​The boat =

​The fish =

​b. How far is Scottie from the fish?

meters.

Answer:

Scottie = +30 m

Lighthouse = +45m

Boat = 0

Fish = - 10m

40 m

Step-by-step explanation:

Scottie = 30m ( height of the cliff) since he is standing on it's edge

Top of lighthouse = since, lighthouse is located on top of the cliff ; height of cliff + height of light house = (30 + 15) = 45m

The boat = 0 (on the surface of water) ; this is the sea level surface or point

The fish = - 10 m (10 meters below the water surface).

Distance between scottie and fish :

30 m - ( - 10m)

30m + 10m

= 40 m

Helppppppppp pLeAsEeEe?

Answers

Answer:

The perimeter is 16 yards.

_

Step-by-step explanation:

♤You can solve using the pythagorean theorem.

♡We will be using the variable 'x' to represent the variable 'b' in the picture provided.

◇In the pythagorean theorem, a and b represents bases while the c represents the hypotenuse (diagonal).

[tex] {a}^{2} + {b}^{2} = {c}^{2} \\ {x}^{2} + {12}^{2} = {20}^{2} \\ {x}^{2} + 144 = 400 \\ \frac{ \: \: \: \: \: - 144 = - 144}{ {x}^{2} = \sqrt{256} } \\ x = 16[/tex]

Find the angle measure that of each missing angle

Answers

Step-by-step explanation:

122+v=180

v=180-122

v=58

w+61=180

w=180-61

w=119

61+58+y=180

119+y=180

y=180-119

y=61

61+x=180

x=180-61

x=119

j=180

25 is what percent of 125?

40 is 25% of what number?

What number is 60% of 200?

Find 16% of 25

50 is ______% of 500

30 is 40% of what?

What is 140% of 20?

600 is 300% of what?

45% of the class is girls. There are 90 girls in the class. How many students are in the class?

40% of the voters voted for Jimmy B. 80 million people voted. How many votes did he get?

300 middle schooler’s vote on their favorite sport. 60 of them like hockey. What percentage of the students like hockey?

Answers

Answer:

1. 20%

2. 160

3. 120

4. 4

5. 10%

6. 75

7. 28

8. 200

9. 200 students

10. 32,000,000 votes (32 million)

11. 20%

Step-by-step explanation:

No clue if you want actual work shown but you posed so many questions that it would take forever to type out all the work.

three couples go to the movies and sit together in a row of six seats. In how many ways can they arrange themselves if each couple sits together?

Answers

Answer:

6

Step-by-step explanation:

im just gonna name these couples by numbers 1 , 2 and 3 and each couple will take up 2 seats together.

1 2 3

3 2 1

2 3 1

1 3 2

2 1 3

3 1 2

Answer:

6 ways

Step-by-step explanation:

1= couple 1

2= couple 2

3=couple 3

1 2 3

1 3 2

2 1 3

2 3 1

3 2 1

3 1 2

pls help me with this multiple choice ! thank u

Answers

Answer:

The answer will be C x=14 and y=7

Step-by-step explanation:

Hope this HElped

The original rectangle is 120 centimeters. Calculate the length of a rectangle that is 72% shorter.
What is the answer​

Answers

Answer:

33.6 cm

Step-by-step explanation:

120 x 0.72 = 86.4

120 - 86.4 = 33.6

The new rectangle which is 72% shorter is 21.6 centimeters.

What is the percentage?

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given The original rectangle is 120 centimeters.

And the new rectangle is 72% shorter or (100 - 72)% = 18% of the original rectangle which is,

= (18/100)×120 centimeters.

= 21.6 centimeters.

Learn more about percentages here :

https://brainly.com/question/24159063

#SPJ2

Which equation has the same solution as x2 + 4x – 13 = 5?

Answers

Answer:

x=4

Step-by-step explanation:

X = 4 hope this helps

HELP, this is really hard and i’m struggling

Answers

Answer:

B or 2

Step-by-step explanation:

Because 2 and 4 are alternative interior angles that means that they are equal, but on the inside of the traversal (Parallels AB and CD)

Hope this helped :)

Answer:

it should be angle 2 and 4

Step-by-step explanation:

since 2 and 4 are interior angles they are the same and congruent so they have to be equal for the line to be parallel

Why is math so hard to learn?​

Answers

Answer:

why does math even exist

Step-by-step explanation:

Because not everyone has the same brain. Some people learn differently, have different focusing levels, some people are mentally ill making it hard asl, they expect us all to be at the same level. It ain’t fair man

need help with this please

Answers

Answer:

where is your question friend...

Solve the simultaneous equations
5x + 3y = 41
2x + 3y = 20
Do not use trial and improvement

Answers

5x + 3y = 41
2x + 3y = 20
Solve 3y
-> 3y = 41 - 5x
Substitute
2x + 41 - 5x = 20
-3x = 20 - 41
= -21
x= 7
Substitute
2x + 3y = 14 + 3y = 20
3y = 6
y = 2
=> x=7, y=2

The solution to the system of equation is (7, 2)

Using the simultaneous equation:

5x + 3y = 41

2x + 3y = 20

using elimination method

Subtract equation 1 from 2 to have:

5x - 2x = 41 - 20

3x = 21

x = 21/3

x = 7

Substitute x = 7 into equation 1 to get y

5x + 3y = 41

5(7) + 3y = 41

35 + 3y = 41

5y = 41 - 35

3y = 6

y = 6/3

y = 2

Hence the solution to the system of equation is (7, 2)

Learn more here: https://brainly.com/question/15165519


[tex] \frac{5}{7} \times 6[/tex]
what is 5/7 x 6 ​

Answers

Answer:

[tex]\frac{30}{7}[/tex]

Step-by-step explanation:

to multiply a number by a fraction, just multiply straight across

you just do 5 * 6 to get 30 and since there isn't anything under the 6, you put an imaginary 1  to get you 7 so your answer will be 30/7

it’s like roughly 4.286 or 30/7

Solve 5r + 7s = 15 for s

Answers

Answer:

Here it is:

:P

Answer:

s=15/7 - 5r/7

Step-by-step explanation:

HELPPPPPPPPPPPPPP FASTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT

Answers

out of 300 7th graders that use a computer 5-10 hours would be around 260 children. out of 360 seventh graders that use a computer 10 hours or less each week will be around 300

How much?Pls help me.

Answers

Answer:

19.8

Step-by-step explanation:

Answer:

$19.80

Step-by-step explanation:

56 text messages = 5.60

1 text message = 5.60 ÷ 56 = 0.1

198 text messages = 0.1 x 198 = 19.8

Some one help please

Answers

6.5. 10 ............

Two angles are supplements if their sum is 180 degrees. The measurement of
one angle is five more than six times its supplement. What is the measurement of
the smaller angle?

Answers

x represents (smaller) angle 1, y represents (larger) angle 2:

180 = x + y
y = 6x + 5

180 = x + y
180 = x + (6x + 5)
180 = 7x + 5
175 = 7x
25 = x

180 = 25 + y
155 = y

the smaller angle (x) is 25 degrees.

What value do we need to complete the equation?

Answers

Answer:

h/2

Step-by-step explanation:

what is the value of x?

Answers

Answer:

x = 9

Step-by-step explanation:

12^2+x^2 = 15^2

==> x = 9

Answer:

9

Step-by-step explanation:

x = [tex]\sqrt{c^{2} - a^{2} }[/tex]

x = [tex]\sqrt{15^{2} - 12^{2} }[/tex]

x = [tex]\sqrt{225 - 144}[/tex]

x = [tex]\sqrt{81}[/tex]

x = 9

A movie theater sell snacks to 30% of it's customer each day. On Saturday, 186 customers bought snacks. How many customers went to the theater on Saturday????

A. 242
B. 520
C. 558
D. 620

Answers

Answer:

620 or D

Step-by-step explanation:

Answer:

620/D I believe........

- 11x - 19 = - 41
solve for x

Answers

Answer:

-11x -19 = -41

We need to add 19 to both sides then divide to find x.

_____________________

1)) so -11x -19 + 19 = -41 + 19

2)) -11x = -22

3)) -11x/-11 = -22/-11

x = 2

GL!

(side note, i dont usually ask, but it would be great if you could mark me brainliest so I can level up <33)

Answer:

x = 2

Step-by-step explanation:

-11x - 19 = -41

Add 19 to both sides of the equation:

-11x - 19 + 19 = -41 + 19

-11x = -22

Divide both sides by -11

-11x/-11 = -22/-11

x = 2

8TH GRADE MATH HELP PLEASE

Answers

Answer:

55 is the answer hope it helps...

Hey there! The answer is 55!
To get this answer, you just need to subtract 125 from 180, which would look like 180-125, which would get you an answer of 55.

Hope this helped! Have a great day! :)

For the line above, what is the slope? *

Answers

Answer: The slope is 2.

Step-by-step explanation:

To get the slope, use this tip: Rise over run

Count how much it rises, which is 4, and how much it "runs' which is 2. Now put rise above run which is 4/2. This simplifies to simply 2.

Answer:

The slope is 2.

Step-by-step explanation:

The points on the line are (1, -2) which can be labeled as x1 and y1, and the other is (3,2) which can be labeled as x2 and y2. you set up the equation in the slope formula, so 2 - - 2 / 3 - 1. Since there are two negatives, the subtraction signs turn into addition signs, and you get 4/2, which simplyfied is 2. Hope this helps :)

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