Determine the value of y, if x is 7.
y = x2 - 1

Answers

Answer 1

Answer:

13

Step-by-step explanation:

If x is 7, then 7 * 2 = 13, and 14 - 1 = 13.

Hope that this helps!

Answer 2
13 because if you plug in 7 y=7(2)-1 then do 7x2 and then it would be 14-1 so 13

Related Questions

A skydiver falls 125 feet in 5 seconds. How far does the skydiver fall per second?

Answers

Answer:

25 feet in one second

Step-by-step explanation:

125 divided by 5 is 25

Answer:

25 feet per second

Step-by-step explanation:

how do you find mean...

Answers

Answer:

It’s the middle number of the group

Step-by-step explanation:

How big of an electric field exists when an electric force of 2 Newtons is exerted on a charge of 1.602 x 10^-19 Coulombs? *

Answers

Answer:

The electric field experienced by the charge is 1.248 x 10¹⁹ N/C

Step-by-step explanation:

Given;

the magnitude of the force, F = 2 N

the magnitude of the charge, q = 1.602 x 10⁻¹⁹ C

The electric field experienced by the charge is calculated as follows;

[tex]E = \frac{F}{q} \\\\E = \frac{2}{1.602 \times 10^{-19} \ } \\\\E = 1.248 \times 10^{19} \ N/C[/tex]

Therefore, the electric field experienced by the charge is 1.248 x 10¹⁹ N/C.

Solve and Graph the Inequalities​

Answers

Answer:

1) 2 + 5k ≤ -18

5k ≤ -20

K ≤ -4

2) -7 > 3 + r/5

-10 > r/5

-50 > r

3) -6 + a/2 < -6

a/2 < 0

a < 0

4) -10 ≤ 5 - 3y

-15 ≤ -3y

5 ≤ y

5) 5 - 6z < 29

-6z < 24

z < -4

6) 5c + 2 ≥ -28

5c ≥ -30

c  ≥ -6

7) -4 + x/2 ≥ -10

x/2 ≥ -6

x ≥ -12

8) 4d + 5 ≤ -27

4d ≤ -32

d ≤ -8

9) -9 > -5 + y/6

-4 > y/6

-24 > y

10) -45 > 3 + 6g

-48 > 6g

-8 > g

For all of the graphs:

Start the point on the number that I got from the inequality.

A filled circle means:

Greater than or equal to or less than or equal depending on where the line goes.

A hallow circle means:

Greater than or less than also depending on where the line is pointed towards too.

In order to graph an inequality you have to find and simply first then graph it.

For example on number 1, K ≤ -4.

Let's graph!

As you can see I filled in the circle and started at the point, -4.

Once I did it I made it bold from -4 and there on to the left. Making -4 be greater than or equal to K.

I showed that -4 is greater than or equal to K by making the line bold behind -4, also by filling in the circle.

anjou has 28 apples.3\7 of apples that are rotten find the number of rotten apples

Answers

Answer:

3/7 × 28 = 12 apples are rotten

Hope it helps

Answer:

12

Step-by-step explanation:

3/7*28/1=12

PLS HELP!! WILL GIVE BRAINLIST!!

Answers

The answer is C plz brainliest

Find the degree of the polynomial below.
9x2 – 25

Answers

Answer:

[tex]\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}[/tex]

[tex] {9x}^{2} - 25[/tex]

✏ Degree is the highest value of the exponent in the polynomial. In this polynomial 2 is the degree of the polynomial.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

[tex] \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}[/tex]

Answer:

9x² - 25

2 is the degree of the polynomial.

Want two numbers multiply to get -30 and add to get -13

Answers

Answer:

-15 and 2

Step-by-step explanation:

-15 x 2 = -30

-15 + 2 = -13

the glass gauge on a cylindrical coffee maker shows there are 45 cups left when the coffee maker is 36% full. How many cups of coffee does it hold when its full?

Answers

Answer:

125 cups

Step-by-step explanation:

45 is 36% of what number?

45 = 0.36n

n = 45 / 0.36

n = 125

What is the mean absolute deviation of the data set?

{20, 10, 30, 20, 50, 30, 40, 20} 08 O 10 o 12 O 20​

Answers

Answer:

The answer is 10

Step-by-step explanation:

-add all numbers in a sum

-divide by total of numbers

-use 1.5 strategy

-you get ten

Answer:

10

Step-by-step explanation:

took quiz

Solve the equation for x:

Answers

Answer:

A.   x = 10

Step-by-step explanation:

-5x + 20 = -30

Subtract 20 from both sides

-5x = -50

Divide both sides by -5

x = 10

Answer:

A. x = 10

Step-by-step explanation:

- 5x + 20 = - 30

- 5x = - 30 - 20

- 5x = - 50

5x = 50

x = 50 / 5

x = 10

There are 24 girls in a class. The ratio of girls to boys is 3:8.
How many boys are in the class?​

Answers

Answer:

64 boys.

Step-by-step explanation:

There are 3 girls for every 8 boys.

24/3 = 8

8 * 8 = 64

The number of boys will be [tex]64[/tex] .

What is ratio ?

Ratio is the comparison of two numbers i.e. how much a number contains other.

We have,

Number of girls [tex]=24[/tex]

Ratio of girls to boys [tex]=\ 3:8[/tex]

So,

According to the question,

Let number of girls [tex]=3x[/tex]

Number of boys [tex]=8x[/tex]

And,

We have number of girls so compare them,

i.e. [tex]3x=24[/tex]

⇒[tex]x= 8[/tex]

So, now putting value of [tex]x[/tex] in Number of boys,

i.e.

Number of boys [tex]=8x[/tex]

                           [tex]=8*8[/tex]

Number of boys [tex]=64[/tex]

Hence, we can say that the number of boys will be [tex]64[/tex] .

To know more about Ratio click here

https://brainly.com/question/13419413

#SPJ3

Can someone please explain Conditional probability to me

Answers

Answer:

conditional probability is probability based on logic and past events instead of your current data which you got from whichever experiment you did (that is experimental probability)

Step-by-step explanation:

HELP ASAP FOR 100 POINTS

Answers

Answer:

C

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

you are correct already

Two functions are given below. How do they compare?
f(x) = -3x + 1
g(x) = -3x + 4
a) f(x) is less steep than g(x)
b) f(x) has the same y-intercept as g(x)
c) f(x) is translated 3 units down from g(x)
d) f(x) is translated 3 units up from g(x)

Answers

Answer:

I'm pretty sure the answer is D

With working steps :)​

Answers

Answer:

Surface area =132cm

Step-by-step explanation:

Formula= 2A(b)+(a+b+c)h

This one is really long

PLEASE H LP ME WITH THIS AND SHE WANTS US TO SHOW WORK AND I NEED THE ANSWER AND THE WORK

Answers

ok lets convert first

1/2=0.5

Then divide

2/0.5=4

so now we multiply 50 with 4

50*4=200

The answer would be D

D, 200 miles

What is 3/3 plus 4 6/4?

Answers

Answer:

78/12 or 6 1/2

4b^2+10 if b=5 please help and I need to use distributive property

Answers

Answer:

fonite is amzing

Step-by-step explanation:

here is my question please anwser as soon as possible !!!!!!!

Answers

Answer:

is it asking which one is a y coordinate?

Answer:

Q'(5, -3), R'(4, -1), S'(0, -2), T'(0, -5)

Step-by-step explanation:

Reflecting across the y-axis causes the x coordinate of a point to change to its opposite. So in terms of x and y: (x, y) ⇒ (-x, y)

Q(-5, -3) ⇒ Q'(5, -3)

R(-4, -1) ⇒ R'(4, -1)

S(0, -2) ⇒ S'(0, -2)

T(0, -5) ⇒ T'(0, -5)

Determine the value of the variable that makes the equation true.

`1=-10c`

Answers

Answer:

please the answer is-10

Jill used 10 gallons of gas for every 50 miles she drive? how many gallons does she use if she drives 200 miles?

Answers

Jill uses 40 gallons of gas

Amy work 5 hours less than Samantha worked. together they worked 19 hours how many hours did they each work? Help and show work plssss

Answers

Answer:

Samantha worked 12 hours and Amy worked 7 hours.

Step-by-step explanation:

Samantha worked 12 hours, so Amy is 5 less, so Amy would be 7 hours. 12+7 = 19.

Complete the factored form.
7x² +37x + 10 = (7x + 2)()

Answers

The completed factor is (7x+2) (x+5)

Easy brainliest, please help me..
-44 points in total with brainliest-
(only if you get it correct)

Answers

Answer:

Solution given:

arcCD=2×35=70°[inscribed angle is half to the central angle]

r=10in

area of segment :[tex] \frac{70}{360} π×r²[/tex]

:[tex] \frac{70}{360} π×10²[/tex]

=[tex] \frac{175}{9} π[/tex] in²

C.[tex] \frac{175}{9} π[/tex] in² is a right answer.

what is difference between poor maths and maths lit​

Answers

Answer:

Mathematics deals with theories and concepts and problems not necessarily encountered in everyday life (think trigonometry, algebra and basic calculus). In contrast to this, mathematical literacy deals with common practical problems like budgeting, interest calculations

Step-by-step explanation:

Step-by-step explanation:

Poor Math:

1+1=3

Lit Math:

e = mc^2

solve for n:

4n-40=7(-2n+2)

Answers

Step-by-step explanation:

hope this helped you :)) !!

a line that passes through the point (3,-1) and has a slope of -2/3​

Answers

Answer:

y = -2/3x + 1

Step-by-step explanation:

y = -2/3x + b

-1 = -2/3(3) + b

-1 = -2 + b

1 = b

y = -2/3x + 1

I need this answered

Answers

Answer:

a please would be nice

It should be C if not then not good enough information

what is the graph function f(x) = x^3 +9x^2 +2x -48?

Answers

Answer:

y=9x^2+2x-48

Step-by-step explanation:

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