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Answer:

x - 9 = y +2 => y = x - 11

It is linear because the exponent of x number is equal to 1.

Answer:

  4.8

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the relation between angles and sides of a right triangle is ...

  Tan = Opposite/Adjacent

  tan(75°) = 18/x

Solving for x gives ...

  x = 18/tan(75°)

  x ≈ 4.8

Answer:

A, D, E

Step-by-step explanation:

for a function in its inverse, the domain and range are switched.  

Answer:

ADE

Step-by-step explanation:

ADEADEADEADE

Answer:

38/10

Step-by-step explanation:

hope this helps uwu

Think of the binomial squared as its own squared term.

Since the squared term is isolated, we can take the square root of both sides.

On the left, the square root removes the square and we have x + 7.

On the right, the square root of 81 is ± 9.

*Always use plus or minus when taking square root of both sides*

So we have x + 7 = ± 9.

Now, split things up into two separate equations.

Solving each equation from here, we find that x = -2 or x = 16.

We can write this as {-2, 16}.

The solutions to the equation [tex](x + 7)^2 = 81[/tex]  are x = 2 and x = -16.

The correct option is D.

To find the solutions to the equation [tex](x + 7)^2 = 81[/tex] , we can start by taking the square root of both sides of the equation. However, since we have a squared term, we need to consider both the positive and negative square roots.

Taking the square root of both sides, we have:

[tex]x + 7 = \pm \sqrt{81}[/tex]

Simplifying the right side, we get:

x + 7 = ±9

Now, we can solve for x by subtracting 7 from both sides:

x = -7 ± 9

This gives us two possible solutions:

x = -7 + 9 = 2

x = -7 - 9 = -16

Hence, the correct answer is option D: -16 and 2.

To learn more about the quadratic equation;

https://brainly.com/question/17177510

#SPJ6

Answer:

Step-by-step explanation:

Given the sample data 2 6 15 9 11 22 1 4 8 19, before we can get the standard deviation, we need to first calculate the mean.

mean = 2 +6 +15 +9 +11 +22 +1 +4 +8 +19/10

mean = 97/10

mean = 9.7

Standard deviation for ungrouped data is expressed using the formula;

[tex]S = \sqrt{ \dfrac{\sum(x-\overline x)^2}{n-1} }[/tex]

[tex]\overline x \ is\ the \ mean\\n \ is \ sample \ size[/tex]

[tex]S = \sqrt{\frac{(2-9.7)^2+(6-9.7)^2+(15-9.7)^2+(9-9.7)^2+(11-9.7)^2+(22-9.7)^2+(1-9.7)^2+(4-9.7)^2+(8-9.7)^2+(19-9.7)^2}{10-1} }\\ S = \sqrt{\frac{(-7.7)^2+(-3.7)^2+(5.3)^2+(-0.7)^2+(1.3)^2+(12.3)^2+(-8.7)^2+(-5.7)^2+(-1.7)^2+(9.3)^2}{10-1} }\\\\S = \sqrt{\dfrac{59.29+13.69+28.09+0.49+1.69+151.29+75.69+32.49+2.89+86.49}{10-1} }\\\\\\S = \sqrt{\dfrac{452.1}{9} }\\\\S = \sqrt{50.23}\\ \\S = 7.08\\\\S \approx 7.1[/tex]

Hence the standard deviation of the sample data is 7.1

Work Shown:

1/5 = 3/15 after multiplying top and bottom by 3

1/5 + 3/15 = 3/15 + 3/15 = (3+3)/15 = 6/15

Reduce that result to get

6/15 = (2*3)/(5*3) = 2/5

So 6/15 reduces to 2/5

Overall,

1/5 + 3/15 = 2/5

Answer:

  7, 9

Step-by-step explanation:

The average of the two is the even integer between them:

  average = sum/2 = 16/2 = 8

The two odd integers are 7 and 9.

_____

In this case, the divisor for the average is 2, because there are 2 integers in the sum.

Step-by-step explanation:

pythagoras theorem: c²=a²+b²

Where c= longest side of a right angle triangle

AB= 6+r = c

AD= 12 =a

CD= r =b

(6+r)² = 12²+ r²

36+12r+r² =144 +r²

12r+r²-r²=144-36

12r=108

r= 108/12

r=9

Answer:

the answer is A.

Step-by-step explanation:

I just took the test

x = # of days

y = total calories

Simba = 1000 + 140x = y

Cuddles = 2650 - 190x = y

Let's set both of these equations equal to each other

1000 + 140x = 2650 - 190x

Add 190x to both sides and subtract 1000 from both sides.

330x = 1650

Divide each side by 330

x = 5

After 5 days, they will be consuming the same amount of calories.

To find out how many calories they will be consuming, let's plug 5 into our Simba equation.

1000 + 140(5) = y

Multiply 140 by 5

1000 + 700 = y

Simplify

1700 = y

They will be consuming 1,700 calories each day.

Answer:

1(-4)

Step-by-step explanation:

I think it's 1(-4)

since it's moving 1 number over, four times. and if you multiply, the answer -4.

I'm pretty sure this is the answer.

Answer:

13 cm

Step-by-step explanation:

because its represents the line parts

Answer:

The answer is 9

Answer:

151.9 or 15.2

Step-by-step explanation:

Answer:

He spent on 16 minutes

Step-by-step explanation:

Given

[tex]Base\ Amount = \$40[/tex]

[tex]Charge = \$0.5[/tex] per minute

[tex]Total = \$48[/tex]

Required

Determine the number of minutes

Let the number of minutes be n

If 1 minute costs $0.5

n minutes would cost $0.5n

The relationship between the given parameters is

[tex]Total = Base\ Amount + Charges[/tex]

Substitute values for each of the above

[tex]48 = 40 + 0.5n[/tex]

Solve for 0.5n

[tex]0.5n = 48 - 40[/tex]

[tex]0.5n = 8[/tex]

Solve for n

[tex]n = 8/0.5[/tex]

[tex]n = 16[/tex]

He spent on 16 minutes

Answer:

No

Step-by-step explanation:

7 would be the solution to 3x=21, the solution to 4x=21 is 21/4 or 5.25.

Answer:

9/3=3

Step-by-step explanation:

Answer: they are they same

Step-by-step explanation:

Answer:

2x−2

Step-by-step explanation:

Answer:

True.

Step-by-step explanation:

Let 0.005 is x times of 0.05. It can be solved as follows :

0.005 = 0.05x

Dividing both sides by 0.05,

[tex]\dfrac{0.005 }{0.05}=\dfrac{0.05}{0.05}x\\\\x=\dfrac{0.005 }{0.05}\\\\x=0.1\\\\\text{or}\\\\x=\dfrac{1}{10}[/tex]

So, 0.005 is 1/10 of 0.05. Hence, the given statement is true.

Answer:

0.1554

Step-by-step explanation:

.37x.42=.1554

Answer:

7 weeks.

Step-by-step explanation:

Divide 105 by 15, after working with all the numbers you should get 7. Your answer is 7 weeks! Hope it helped!

OwO

Answer:

-9.3

-7.2

2.05

2.3

4.06

4.32

4.35

21.3

Step-by-step explanation:

negatives go 1st. the bigger the number would be positive means its a smaller negative. then you just order the positive numbers least to greatest

No sé nada de esto, solo quiero los puntos, así que no se enoje conmigo por tener que publicar algunas preguntas, traduzca esto y, a cambio, responderé una pregunta realmente seria. entonces byeeeeeeee

Answer:

18 divided by 9 = 2 is that what you need help with?

Step-by-step explanation:

I can't understand what this means, but here are some answers if they help.

9 divided by 18 would be (one half, or 1/2)

9 divided by a number to get 18 would be again, (one half, or 1/2)

18 divided by 9 is (2).

Answer:

350

Step-by-step explanation:

Total ratio: 12

600/12

each ratio has 50 students

that means the boys are 5 * 50= 250

the girls are 7 * 50 =350

Answer:

Line TX or XT

Step-by-step explanation:

Planes always intersect in a line.