Help please! I’ll give brainliest if correct!!

Answer:

b I think

Step-by-step explanation:

it would need to be a positive line so that eliminated A. also D is not it because the calories will go up, and not stay the same. this leaves is with B and C. I think that it is B because you have to start at 0. hope this helped!

Answer:

B

Step-by-step explanation:

You burn more calories as you exercise, so A and D are wrong. You don't burn any calories if you don't exercise, so C is wrong.

Therefore, B is the correct answer.

Hope I helped!!!

Answer:

8/21

Step-by-step explanation:

Answer:

The porch is 7.35 feet off the ground

Step-by-step explanation:

Trigonometric Ratios

The ramp, the height of the porch, and the distance from the base of both form a right triangle where trigonometric ratios can be applied.

The angle of 20° has the height of the porch H as the opposite side, and the hypotenuse is the length of the ramp.

The sine is defined as:

[tex]\displaystyle \sin\theta=\frac{\text{opposite leg}}{\text{hypotenuse}}[/tex]

For our problem:

[tex]\displaystyle \sin 20^\circ=\frac{H}{21.5}[/tex]

Solving for H:

[tex]H=21.5\cdot \sin 20^\circ[/tex]

Find the sine of 20° by using a calculator:

[tex]H=21.5\cdot 0.342[/tex]

H=7.35 feet

The porch is 7.35 feet off the ground

Answer:

75/100 expressed in the simplest fraction is 3/4.

Step-by-step explanation:

Answer:

[tex] \frac{3}{4} [/tex]

Step-by-step explanation:

75/25=3

100/25=4

Answer:

y = x - 5

Step-by-step explanation:

Answer:

0.38888888888

Step-by-step explanation:

Answer:

74

Step-by-step explanation:

72-7.0+9/1

Answer:

(7 over 13, 19 over 13 )

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Answer

a. The backpack is $4.50

b. The sweatshirt is $2.70

Step-by-step explanation:

a. 30 x 0.15 = 4.50 (The 0.15 is from the price you are actually paying for the item. Because the item is 85% off, you are paying for 15% of the usual price. 15% as a decimal is 0.15 so you multiply that to the original price to find the amount u will pay.)

b. 18 x 0.15 = 2.70  

Answer:

A.0.6

0.6*5yrs=3feet a year

Step-by-step explanation:

Answer:

i think it might be a correct me if i am wrong

Step-by-step explanation:

Answer:

1/6

Step-by-step explanation:

if there is 1/3 bag of candy, 1/3 of 1/3 is 1/9

Answer:

-16 and 16 so A and E

Step-by-step explanation:

The positive version of -16 is 16

the correct answers are A) 16 and E) -16. Both 16 and -16 have an absolute value of 16, as they are equidistant from zero on the number line.

To find the number whose absolute value is 16, we can consider both the positive and negative values that satisfy this condition.

The absolute value of a number represents the distance of that number from zero on the number line. Therefore, any number that is 16 units away from zero can be the answer.

In this case, the correct answers are A) 16 and E) -16. Both 16 and -16 have an absolute value of 16, as they are equidistant from zero on the number line.

Options B) -1/16, C) 61, and D) 1/16 are not correct answers as they do not have an absolute value of 16.

Learn more about absolute value here

https://brainly.com/question/17360689

#SPJ6

Answer:

i dont know if its supposed to be a whole number, fraction, decimal.

Step-by-step explanation:

but, one possible answer is 103 x 6 + 12 = 630

Answer: 195mph

Step-by-step explanation:

Answer:

195

Step-by-step explanation:

Distance = Rate * Time

Rate = 65 mph

Time = 3

Distance = 65 * 3

Distance = 195

Answer:

x = 3,46

d = 22,38 m

Step-by-step explanation: See Annex  

According to the problem description.

Let´s call L₁ total distance between Centerville and Springfield

and L₂  total distance between Centerville and Shelbyville

Then, the total cable will be:

L₁ + L₂   note that the length 12 - x ( in red in the annex ) is common to the two distances (we only need to take it once)

Therefore total distance  d = ( 12 - x ) + 2 √(x² ) + (6)²  

F(x) = 12 - x + 2*√ ( x² + 36 )

Taking derivatives on both sides of the equation

F´(x) = -1 + 2 * 1/2 * 2*x/ √( x² + 36 )

F´(x) = - 1 + 2*x / √(x² + 36 )

F´(x) = 0                    -1 +  2*x/ √( x² + 36 ) = 0

Solving for x

- √ ( x² +  36 ) + 2*x  = 0

- √ ( x² +  36 )  = - 2*x

 √ ( x² +  36 )  =  2*x

squaring both sides

x² + 36  = 4 x²

3*x² = 36

x² = 12

x =  3,46 m   then  ( 3,46 , 0 )   is the location for minimun length

Then total amount of cable is:

d  =  12 - 3,46 + 2 * √ (3,46)² + 36

d  = 8,54  + 2 * 6,92

d  = 22,38 m

if we take the second derivative of F

F´´(x) = 0 + D/ dx (  2*x/ √( x² + 36 ) )

F´´(x) = [ 2*√( x² + 36 )  - 2*x [ x/√ ( x² + 36 ) ] / (x² + 36)

we can see that this expression is an integer positive, since the second term is always smaller than the first one

then we have a minimun for x = 3,46

Answer:the unit price is 11.2

Step-by-step explanation:cuz u  divided 56 by 6 and u get =11.2 plz rate me brainest

Answer:

Step-by-step explanation:

The tangent to the curve has one point in common with the curve.

The slope-intercept form of an equation of a line:

[tex]y=mx+b[/tex]

[tex]m[/tex] - slope

[tex]b[/tex] - y-intercept

We have the slope [tex]m=2[/tex].

[tex]y=2x+b[/tex]

Therefore we have the system of equations:

[tex]\left\{\begin{array}{ccc}y=2x^2-2x+1&(1)\\y=2x+b&(2)\end{array}\right[/tex]

substitute (1) to (2):

[tex]2x^2-2x+1=2x+b[/tex]        subtract 2x from both sides

[tex]2x^2-4x+1=b[/tex]         subtract b from both sides

[tex]2x^2-4x+1-b=0[/tex]

Use the discriminant of a quadratic equation:

[tex]ax^2+bx+c=0\to \Delta=b^2-4ac[/tex]

If Δ = 0, then we have one common point.

Calculate:

[tex]2x^2-4x+1-b=0\\\\\Delta=(-4)^2-4\cdot2\cdot(1-b)=16-8+8b=8-8b[/tex]

[tex]\Delta=0\iff8-8b=0[/tex]   subtract 8 from both sides

[tex]-8b=-8[/tex]        divide both sides by (-8)

[tex]b=1[/tex]

Finally:

[tex]y=2x+1[/tex]

Answer:

Step-by-step explanation:

The equation of shifted function y = ax² is y = a(x-h)²+k, where h tells us how many units we move left (h<0) or right (h>0) and k tells how many units up (k>0) or down (k<0)

y = x² - 20 = 1(x - 0)² + (-20)   ⇒  k = -20<0

So it's shifted 20 units down.

Answer:

The first one the are equal the second one is the third option

Step-by-step explanation:

Answer:

$2.95/lb

Step-by-step explanation:

2 tons to lbs= 4000lbs

11,800/4000=2.95

Answer:

105

Step-by-step explanation:

Answer:

105.5 or 105 1/2

Step-by-step explanation:

3165/3000 = 1.055

1055* 100 = 105.5 or 105 1/2

Answer:

you subtract and get 2925

Step-by-step explanation:

Answer:

6752 - 3827 = 2925

Step-by-step explanation:

  5 17 12  

  6752

-  3827

--------------

  2925

Answer:

Given

f

(

x

)

=

4

⋅

7

x

For

x

=

−

1

we have

f

(

−

1

)

=

4

⋅

7

−

1

=

4

7

using

a

−

n

=

1

a

n

For x=2, we have

f

(

2

)

=

4

⋅

7

2

=

196

Step-by-step explanation:

Answer:

See below

Step-by-step explanation:

[tex]f(x) = 4. {7}^{x} \\ \\ plug \: x = - 1 \\ \\ f( - 1) = 4. {7}^{ - 1} \\ \\ f( - 1) = \frac{4}{7} \\ \\plug \: x = 2 \\ \\ f( 2) = 4. {7}^{ 2} \\ \\ f( 2) = 4 \times 49 \\ \\f( 2) = 196 \\ \\[/tex]