Can someone help me with this??? Plzzzz

Answer:

-57

Step-by-step explanation:

-2+(-47-8)

-2-47-8

-49-8

-57

Answer:-57

Step-by-step explanation:

-2+(-47-8)

Parenthesis first

(-47-8)

-55

-2+-55

-57

Answer:

(2^8 ⋅ 5^−5 ⋅ 19^0)^−2 ⋅ (5^-2/2^3)^4 ⋅ 2^28

= (2^-16 ⋅ 5^10 ⋅ 1)⋅(5^-8 / 2^12) ⋅ 2^28

= 2^(-16-12+28) ⋅ 5^(10-8)

= 2^0 ⋅ 5^2

= 1 ⋅ 25

= 25

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given line

Perpendicular line has a slope that is negative reciprocal to a given

Finding the value of b using the point (-2, 4)

So the line is:

Answer:

y = -4x - 4

Step-by-step explanation:

The line of a perpendicular line is the opposite reciprocal of the original line.

1/4 -> -4/1 -> -4

Now that we have the new slope, we can find the new y-intercept.

y = -4x + b

4 = -4(-2) + b

4 = 8 + b

-4 = b

y = -4x - 4

Best of Luck!

Answer:

N is an integer

Step-by-step explanation:

Answer:

n = 15

Step-by-step explanation:

Solve for n:

n - 15 = 0

Hint: | Isolate terms with n to the left hand side.

Add 15 to both sides:

n + (15 - 15) = 15

Hint: | Look for the difference of two identical terms.

15 - 15 = 0:

Answer: n = 15

Answer:

2x - 5 = 47 is the expression .

x = 26

Step-by-step explanation:

The number is 26.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values. We frequently observe constant change in

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

given:

Five less than twice a number is equivalent to 47

let the number is x

So, 2x- 5= 47

Now solving for x

2x- 5= 47

2x= 52

x= 26

Hence, the number is 26

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Answer:

it is enough and she will have 6.19 left

Answer:

she has enough and her change would be $6.19

Step-by-step explanation:

the new balance would be $689.55

Answer:

B. 9=1+2n

Step-by-step explanation:

Read it aloud to write it out correctly

Answer:x=-20

Step-by-step explanation:

solve for x by simplyfying both sides of the eqautions.

Answer:

200ft would be your answer

Step-by-step explanation:

Answer: -4x²z²y + 12xz²y

Step-by-step explanation:-------------

Step-by-step explanation:

Variable n = number

7(n - 8) + 2 = 36

Step 1: Subtract 63 from both sides.

4x+63−63=18−63

4x=−45

Step 2: Divide both sides by 4.

4x /4 = −45 /4

x= −45 /4

Answer:

it is ten with the small two to the right of the ten

Step-by-step explanation:

G O O G L E

Answer:

Well, I guess you could use a special representation of the function through a sum of terms, also known as Taylor Series.

It is, basically, what happens in your pocket calculator when you evaluate, for example,  

sin

(

30

°

)

.

Your calculator does this:

sin

(

θ

)

=

θ

−

θ

3

3

!

+

θ

5

5

!

−

...

where  

θ

must be in RADIANS.

In theory you should add infinite terms but, depending upon the accuracy required, you can normally stop at three terms.

In our case we have:  

θ

=

π

6

=

3.14

6

=

0.523

and:

sin

(

π

6

)

=

sin

(

0.523

)

=

0.523

−

0.024

+

3.26

⋅

10

−

4

−

...

=

0.499

≈

0.5

Answer:

sin135° = [tex]\frac{1}{\sqrt{2} }[/tex]

Step-by-step explanation:

135° is in the second quadrant where sin x ° > 0

sin135°

= sin(180 - 135)°

= sin45°

= [tex]\frac{1}{\sqrt{2} }[/tex] = [tex]\frac{\sqrt{2} }{2}[/tex] ← exact value

Answer:

a

Step-by-step explanation:

Answer:

g(-2) = -7

Step-by-step explanation:

To find g(-2), plug -2 into g(x).

g(x) = -4x² + 3x + 15

g(-2) = -4(-2)² + 3(-2) + 15

g(-2) = -4(4) + 3(-2) + 15

g(-2) = -16 + (-6) + 15

g(-2) = -1 + (-6)

g(-2) = -7

Answer:

the answer is 2

Step-by-step explanation:

3(1) is 3, this means that your multiplying. 3*3 is 9. if you add 2 to 1 you'll have 3, so 3*3=9 or 3(3)=9

Answer:

s=2

Step-by-step explanation:

Answer:

The answer is below

Step-by-step explanation:

Let Q represent the amount of salt in the tank at time t.

[tex]\frac{dQ}{dt}= flow\ in - flow\ out\\ \\flow\ in=3\ gal/min*2\ lb/gal=6\ lb/min\\\\net\ gain\ in\ tank\ volume=3-4=-1, henceflow\ out= \frac{4Q}{100-t} \\\\\frac{dQ}{dt}= 6-\frac{4Q}{100-t} \\\\\frac{dQ}{dt}+ \frac{4Q}{100-t}=6\\\\The \ integrating\ factor\ is:\\\\IF=e^{\int\limits {\frac{4}{100-t} } \, dt }=e^{-4\int\limits {\frac{-1}{100-t}}=e^{-4ln(100-t)}=(100-t)^{-4}}\\\\Multiplying\ through \ by\ IF: \\\\(100-t)^{-4}\frac{dQ}{dt}+ (100-t)^{-4}\frac{4Q}{100-t}=6(100-t)^{-4}\\\\[/tex]

[tex]Integrating:\\\\A(100-t)^{-4}=-2(100-t)^{-3}+c\\\\A=-2(100-t)+\frac{c}{(100-t)^{-4}} \\\\at, t=0,A=0\\\\0=-2(100-0)+\frac{c}{(100-0)^{-4}}\\\\c=0.02\\\\A=-2(100-t)+\frac{0.02}{(100-t)^{-4}}[/tex]

Answer:

x=15/16

Step-by-step explanation:

Let's solve your equation step-by-step.

6−34x+13=12x+5

6+−34x+13=12x+5

Multiply all terms by x and cancel:

6x+−34+1x3=12+5x

193x+−34=5x+12(Simplify both sides of the equation)

193x+−34−5x=5x+12−5x(Subtract 5x from both sides)

43x+−34=12

43x+−34+34=12+34(Add 3/4 to both sides)

43x=54

(34)*(43x)=(34)*(54)(Multiply both sides by 3/4)

x=1516

Check answers. (Plug them in to make sure they work.)

x=1516(Works in original equation)

Answer:

the square root of 49

Step-by-step explanation:

may I please have brainlyest

Answer: It has 3 sets of parallel lines

Step-by-step explanation:

Im smart (AP Math)

Answer: There is 3 sets of parallel lines

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Since we know x = -2 we can plug it into the equation

3*-2^2+5*-2+1

Solve!

3*-2^2+5*-2+1 = 3

Hope this helps!

Answer:

2:9

Step-by-step explanation

4:18 divided by 2 is the lowest it can go so 4 divided by 2 is 2

18 divided by 2 is 9 so,

2:9

Answer:

2:9

3:27

Step-by-step explanation:

both 4 and 18 are even so you can split both of those in half which will become 2 and 9 then you can just time 2 and 9 by 3 and get 6 and 27

Answer: 75 feet per hour

Step-by-step explanation:

X: 1, 3

Y: 200, 350

150/2

75

The rate of change in altitude is 75 feet per hour.

Rate is a measurement to determine the change in one quantity with respect to another quantity.

Given that,

Altitude of hiker after 1 hour = 200 feet

Altitude of hiker after 3 hours = 350 feet

The change in altitude = 350-200 = 150 feet

The difference of time = 3 - 1 = 2 hours

Rate of change = change in altitude/ change is time

                          = 150/2

                           = 75 feet per hour

The rate of change in altitude of the hiker is 75 feet per hour.

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Answer:

7

Step-by-step explanation:

I don't really see how I can give you an explanation but the check is that 6,327 * 7 is 44,289

The answer should be 7

Answer:

19.85

Step-by-step explanation:

I rounded it. I think it's longer than 19.4615385...

Answer:

7 times a to the fourth power

Answer:

(2x+1)(2x+3)

Step-by-step explanation:

I am not sure

Answer:

Hello,

I am not sure if you are still having an issue with this problem but for future reference for you or anyone else the answer is

d. Each vertical line drawn through the graph will intersect a function in only one location.

I thought of it this way:

"Each vertical line" which tells me only one line per "one location" now I could be completely off but this was just my logic and it helped me personally.

Answer:

D

Step-by-step explanation:

just took the test