Determine the value of y, if x is – 7.
y= x2 - 9

Answers

Answer 1

Answer:

y= -23

Step-by-step explanation:


Related Questions

how many (5/16)s are in 1 7/8

Answers

Answer:

6

Step-by-step explanation:

Answer:

6.

Step-by-step explanation:

1 7/8  /  5/16

= 15/8 / 5/16

= 15/8 * 16/5

=  15*16

    ------

    8 * 5

= 3 * 2 / 1* 1

= 6.

A BMW I-8 has N advertised rate of acceleration of 6.39 m/s to the second power. Based in the advertised date of acceleration, what would the velocity of a bmw I-8, starting from rest, in 4.20 seconds

Answers

Answer:

3.43

Step-by-step explanation:

someone help me on 1 pls

Answers

Answer:

The answer is 140

Step-by-step explanation:

Victoria ran 3/4 mile on Tuesday. She ran 2.2 times further on Saturday. How many miles did she run on Saturday

Answers

Answer:

The answer is 1.65 miles.

Step-by-step explanation:

To get this answer you need to convert 3/4 to a decimal, 0.75. Then multiply 0.75 by 2.2 to get 1.65.

In the figure below, determine the perimeter of AEFG.
26
26
DG
2x + 15
39 units
55 units
66 units
o
82 units

Answers

Answer:

A

Step-by-step explanation:

I took the quiz

Answer: 39 units

Step-by-step explanation:

I took the test

On a spelling quiz, Lily got 16 out of 20 questions correct. Select all the expressions that show the ratio of Lily’s correct answers to incorrect answers.

A. 45

B. 164

C. 4:1

D. 5:4

E. 16:20

Answers

Answer:

E.

Step-by-step explanation: Unless you accidentally swapped the 5 and 4 around for D, then the answer is just E.

Please help it’s due

Answers

Answer:

c, d, e,

Step-by-step explanation:

supplementary means 180 degrees or straight line

what is 15 / 3/4 10 POINT IF ITS RIGHT​

Answers

Answer:

20

Step-by-step explanation:

What is the relationship between n and the number of petals shown in the sine rose curve?

n petals when n is even and odd

2n petals when n is even and odd

2n petals when n is even and n when n is odd

n petals when n is even and 2n when n is odd

Answer is C

Answers

Answer:

2n petals when n is even and n when n is odd

Step-by-step explanation:

edge 2020

Answer:

2n petals when n is even and n when n is odd

Step-by-step explanation:

edge

If the radius of a circle is 19 what’s the circles diameter

Answers

Answer:

38

Step-by-step explanation:

R × 2 = D19 × 2 = D19 × 2 = 38

I hope this helps!

Answer:

d = 38

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Geometry

Diameter: d = 2r

Step-by-step explanation:

Step 1: Define

Radius r = 19

Step 2: Find diameter

Substitute:                    d = 2(19)Multiply:                        d = 38

And we have our final answer!

Which rational number equals 0 point 6 with bar over 6? (5 points)

A. 2 over 3
B. 6 over 10
C. 4 over 5
D. 6 over 5

Answers

A. 2 over 3 is the answer.


Estimate the perimeter and the area of the shaded figure to the nearest tenth.

Answers

Answer:

Here is ur answer.

Step-by-step explanation:

El costo total de una membresía de club de fans de Ariana Grande está representado por la expresión
3.50 m + 12, donde m es el número de meses que usted es un miembro. ¿Qué podría representar el 12?
The total cost of an Ariana Grande fan club membership is represented by the expression 3.50 m + 12 , where m is the number of months you are a member. What could the 12 represent?

Answers

Step-by-step explanation:

El costo total de una membresía de club de fans de Ariana Grande está representado por la expresión

3.50 m + 12, donde m es el número de meses que usted es un miembro. ¿Qué podría representar el 12?

The total cost of an Ariana Grande fan club membership is represented by the expression 3.50 m + 12 , where m is the number of months you are a member. What could the 12 represent

which ordered pair is a solution to the equation y=4-6x?
a) (8,-2)
b) (2,-8)
c) (-8,2)
d) (-2,-8)​

Answers

Answer:

the answer to this is b( 2,-8)

3. A road sign that is 12 feet high casts a shadow that is 15 feet long.
A second, taller road sign casts a shadow that is 25 feet long. What is
the height of the taller road sign?

Answers

Answer:

I think its 22 but I'm not sure

If a random sample of 47 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by more than 0.2 millimeters?

Answers

Complete Question

Thompson and Thompson is a steel bolts manufacturing company. Their current steel bolts have a mean diameter of 143 millimetres, and a standard deviation of 5. If a random sample of 47 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by more than 0.2 millimetres? Round your answer to four decimal places.

Answer:

The probability is [tex]P(|\= x - \mu | \ge 0.2 ) = 0.78394[/tex]

Step-by-step explanation:

From the question we are told that

   The sample size is  n =  47

    The mean diameter is [tex]\mu = 143[/tex]

    The standard deviation is [tex]\sigma = 5[/tex]

Generally the standard error of the mean is mathematically represented as

       [tex]\sigma_{x} = \frac{\sigma }{\sqrt{n} }[/tex]

=>     [tex]\sigma_{x} = \frac{5 }{\sqrt{47} }[/tex]

=>     [tex]\sigma_{x} = 0.7293[/tex]

Generally the probability that the sample mean will differ from the population mean by more than 0.2 milli meters is mathematically represented as

       [tex]P(|\= x - \mu | \ge 0.2 ) = P(\frac{|\= x - \mu|}{\sigma_{x}} \ge \frac{0.2}{0.7293} )[/tex]

[tex]\frac{|\= x - \mu | -\mu}{\sigma }  =  |Z| (The  \ standardized \  value\  of  \ {|\= x - \mu |  )[/tex]

=>      [tex]P(|\= x - \mu | \ge 0.2 ) = P(|Z| \ge 0.2742 )[/tex]

=>     [tex]P(|\= x - \mu | \ge 0.2 ) = P(Z < - 2742) + P(Z > 0.2742)[/tex]

From the z table  the area under the normal curve to the left corresponding to   -2.742  is

    [tex]P(Z < -0.2742) =0.39197[/tex]

From the z table  the area under the normal curve to the right corresponding to   2.742  is        

    P(Z > 0.2742)   =  0.39197

So

      [tex]P(|\= x - \mu | \ge 0.2 ) = 0.39197 + 0.39197[/tex]

      [tex]P(|\= x - \mu | \ge 0.2 ) = 0.78394[/tex]

b) The perimeter of the rectangle below is 42cm. Calculate the
lengths of the sides by forming an equation and solving it.

x-2
x + 5​

Answers

Answer:

L = 14  W = 7

Step-by-step explanation:

2L + 2W = P

2 (x - 2) + 2(x + 5) = 42

2x - 4 + 2x + 10 = 42

4x + 6 = 42

    -6.      -6

4x = 36

x = 9

9 - 2 = 7

9 + 5 = 14

A sweater is on sale for 22.50 if the price represents a 45% what is the selling price

Answers

The answer $32.62........

The elevation of a mountain is 27,370 feet. Due to erosion, this mountain is reduced by 0.2% each year. In how many years will the elevation be 26,986.82 feet?

Answers

Answer:

7 years

Step-by-step explanation:

27370 - 26986.82 = 383.18ft

0.2% = 0.2/100 = 0.002

27370*0.002 = 54.74

each year the montain reduce your elevation

54.74ft

then:

383.18/54.74 = 7

Answer:

7 years

which two ratios form a proportion
A 1:2 and 4:2
b 1:2 6:3
c2:1 2:4
d 2:1 and 6 :3

Answers

Answer:c

Step-by-step explanation:

Did the test

Answer:

D. 2:1 & 6:3

Step-by-step explanation:

Proportion means equal so we need to see which ratios are equal.

To do that we need to make one fo the numbers in the ratio equal the corresponding number in the other ratio, then see if the other matches.

A:

1:2 & 4:2

The second number is already the same but the first isn't, therefore it is not proportional.

B:

1:2 & 6:3

To get 1 to equal 6 we must multiply it by 6, and what you do to one side you must do to the other so we have to multiply 2 by 6 as well

6:12 & 6:3

The first numbers are the same but the second isn't, therefore it is not proportional.

C:

2:1 & 2:4

The first numbers are the same but the second isn't, therefore it is not proportional

D:

2:1 & 6:3

to get 2 to equal 6 we need to multiply it by 3, which means we have to multiu 1 by 3 too

6:3 & 6:3

These are equal so this is proportional.

|| evaluate. ||
y + 8 for y = -10
help asap plspls !! :)

Answers

Answer:

i am braindead i cant help but i think its 2^5

Step-by-step explanation:

A boy wants to jump onto a carousel that is spinning at a rate of 14 revolutions per minute. If the carousel is 23 feet in diamter, how fast must the boy run to match the speed of the carousel and jump on?A) 2.68 feet per second.B) 1,011.59 feet per second.C) 33.72 feet per second.D) 16.86 feet per second.

Answers

Answer:

16.86 ft/s

Step-by-step explanation:

Given that

Speed of the carousel, s = 14 rpm

Distance from the carousel, d = 23 ft

To start with, we convert the given speed to revolution per second, so that

s = 14/60 rev/sec

To find the needed speed, we use the formula

v =2πnR, remember that Diameter = 2R, so we substitute D for 2R and get πnD

v = πnD, and we use this to find our needed velocity

v = 3.142 * 14/60 * 23

v = 72.266 * 14/60

v = 16.86 ft/s

Therefore the boy must run at a speed of 16.86 ft/s in order to be able to match the carousel and jump on it

casey wants to buy a gym memebership. One gym has a $80 joining fee and cost $35 per month. Another gym has no joining fee and costs 75$ per month. When would casey pay the same amount to be a member of either gym? how much would she pay?

Answers

Answer:

they cost the same after 2 months

Step-by-step explanation:

Since we're looking for these two gyms cost the same, we need to make the equation compare the two together:

35x + 80 = 75x (the 1st gym with a joining fee $80 and 35 monthly equals $75 monthly)

Subtract 35x from both sides:

35x - 35x + 80 = 75x - 35x

80 = 40x

Divide by 40:

80 / 40 = 40x / 40

2 = x

So they cost the same after 2 months

35 * 2 + 80 = 75 * 2

150 = 150

And you'll be spending $150 in total.

Working alone, Jamie can mow her lawn in 75 minutes. If Bob helps her, then the two can mow the lawn in 30 minutes. How long does it take Bob to mow the lawn alone?

20 POINTS!!

Answers

Answer:

60 mins

Step-by-step explanation:

Please help ASAP!!!!!!

Answers

Answer:

2

Step-by-step explanation:

Need help ASAP What’s the area of a sum

Answers

I believe the answer to you question is going to be 33x^2-50x+8.

Hope this helps!!:))
The answer is C.) or the third one

answer please math 1234556778898999000

Answers

Answer:

[tex]\sqrt{6}[/tex]

Step-by-step explanation:

Is square root 6 :)

plz HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

36 ÷ a

55 - b

18 + c

49 x d

e ÷ 62

Step-by-step explanation:

frank is going to plant b vegetable seeds in one garden and 4b + 2 vegetable seeds in another. How many seeds is frank going to plant?

Answers

Answer:

5b + 2

Step-by-step explanation:

Frank is going to plant b vegetable seeds in one garden and 4b + 2 vegetable seeds in another.

We need to find how many seeds is frank going to plant.

It is equal to the sum of vegetable seeds in one garden and the vegetable seeds in another.

Sum = b + 4b + 2

Sum = 5b + 2

So, there are "5b + 2" seeds frank going to plant.

help please !!!! algebra question !!!

Answers

Answer:

it depends on the value of x

Step-by-step explanation:

Eg. if x = 1

then, 3(1) < 4

and if, x = 2

then, 3(2) > 4

hope this helps

Other Questions
A wave has a frequency of 15,500 Hz and a wavelength of 0.20 m. What is thespeed of the wave? Use the equation v=fx2.A. 0.0000013 m/sB. 3100 m/sO C. 78,000 m/sD. 0.00032 m/s Practice reading the following excerpt for fluency and give a summary of the intended meaning of the paragraph:Joe Traynor is a California bee broker. From a small office in a quiet side street in downtown Bakersfield, on the southern tip of Central Valley, he runs a lucrative business matching almond growers with beekeepers. I put to him that surely all this moving around of bees, confined to their hives for long periods, must be stressful for them. He admits that too much travel is not good for their health: "When you're trucking bees, they need sleep, just as humans do, and the bumping around in the truck for two to three days keeps them awake, and this lowers their resistance to pests and disease." A lemonade recipe calls for 6 gallons of water. How many quarts of water are needed for the recipe Graph 3x + y = -1The graph only takes whole numbers. ASAPWhich word is the preposition in the following sentence? There is a river flowing through the valley I need the answer please help me CAN SOMEONE PLEASE write me a short story on a barzilian carnival IT HAS TO BE TURNED IN AT 11:59 TODAY SOMEONE PLEASE HELP ME ITS WORTH 50 POINTS SO I WILL GIVE 50 POINTS. It can be an ADVENTURE or an ACCOUNT OF A TRIP TO CARNIVAL or anything you wish to write it about and it has to be at least a page i suck a writing so can someone PLEASE do this for me!! pls dont just guest this is a test " " - (MEANING)"Time is very precious." Write four-five sentences on this topicsay in english or in hindi. HOW FAST CAN YOU ANSWER and ill give you brainliest if its correctLOL How does the action of wind affect a rock's appearance? Does john kill lenina? Listening well is an important skill that falls under what skill category?A. Communication skillsB. Organizational skillsC. FriendlinessD. Interpersonal skillsSUBMIT what is the missing number ___(7x + 3) = 14x + 6 Joey exercised 5/6 of an hour on Monday and 3/5 of an hour on Tuesday. How much longer did he exercise on Monday? One way to reduce waste in a shop is to _____________. A bag contains 4 yellow balls 5 red balls and 6 blue balls what is the probability of picking a yellow ball What was one goal of many people in the middle class?O A. To live in apartmentsO B. To keep the classes separateO C. To move out of the city to farmsO D. To improve the lives of others Peterson Soft Drink Corp. imports fruit flavors for use in its products. The company pays $0.86 per pound on every shipment. Which type of tariff does the company pay? What is 1/4 x (20) 1/3= ???