Please help!! Im bad at this

Answers

Answer 1

Answer:

Step-by-step explanation:

This is proportional because the number of calories burned is directly proportional to the amount of time spent on the treadmill

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A blimp can be seen flying at an altitude of 5500 feet above a motor speedway during a race. The slanted distance directly to the pagoda at the startdashfinish line is d feet. Express the horizontal distance h as a function of d.

Answers

Answer:

The expression of h as function of x is h = $√((d + 5500) (d - 5500))$

Step-by-step explanation:

Given as :

The distance of blimp (AB) = 5500 feet

The slanted distance to the pagoda (BC) = d feet

The horizontal distance (AC) = h

Let the angle made between slanted distance and horizontal distance be Ф

So , cos Ф = $(AC)/(BC)$ = $(h)/(d)$

And sin Ф = $(AB)/(BC)$ = $(5500)/(d)$

∵, cos²Ф = 1 - sin²Ф

So, $((h)/(d))^(2)$ = $1 - ((5500)/(d))^(2)$

Or, $((h)/(d))^(2)$ = $((d^(2)- 5500^(2))/(d^(2)))$

Or, h² = d² - 5500²

∴ h = $\sqrt{d^(2)- 5500^(2)}$

Or, h = $√((d + 5500) (d - 5500))$

Hence The expression of h as function of x is h = $√((d + 5500) (d - 5500))$ Answer

Given quadrilateral LMNO ~ quadrilateral RSTU and LM = 8, NO = 12, and RS = 7, what is TU?

Answers

10.5 is the answer. 7x12 then divide by 8

Solve for x: 2 over 3 (x - 4) = 2x.

Answers

2/3 (x - 4 ) = 2x

Simplify both sides of the equation.

2/3(x−4)=2x

Simplify:

2/3(x−4)=2x

(2/3)(x)+(2/3)(−4)=2x(Distribute)

2/3x+−8/3=2x

Subtract 2x from both sides.

2/3x+−8/3−2x=2x−2x

−4/3x+−8/3=0

Add 8/3 to both sides.

−4/3x+−8/3+8/3=0+8/3

−4/3x=8/3

Multiply both sides by 3/(-4).

(3/−4)*(−4/3x)=(3/−4)*(8/3)

x=−2

The correct answer for the value of for the expression $(2)/(3)(x - 4) = 2x$ is

-2.

To solve for x in the equation:

$(2)/(3)(x - 4) = 2x$

First, distribute the $(2)/(3)$ to the terms inside the parentheses:

$(2)/(3) x - (2)/(3)*4 = 2x$

$(2)/(3) x - (8)/(3) = 2x$

Next, Isolate the terms with x on one side of the equation.

Subtract $(2)/(3)x$ term from both side of the equation:

$(2)/(3) x - (2)/(3) x-(8)/(3) = 2x-(2)/(3) x$

$(-8)/(3) = (4)/(3) x$

Now, Solve for x by multiplying both sides of the equation by the reciprocal of $(4)/(3)$ , which is $(3)/(4)$ :

$(-8)/(3) * (3)/(4)= (4x)/(3) * (3)/(4)$

$x= (-8)/(4)$

Simplify further:

$x = -2$

The solution of the equation $(2)/(3)(x - 4) = 2x$ is $x = -2$ .

Learn more about Simplification here:

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Sean has 1/5 of a cupcake and 1/5 of a large cake . Are the wholes the same? Explain.

Answers

I don't think the wholes are the same because if you imagine a cup cake and a cake of different sizes cut into equally 5 pieces, one piece of the cup cake won't be the same size as the piece of cake.
or fractions are to show the fractions of something, so just because two fractions are the same it doesn't mean the whole numbers are the same too.

No, the only way I can explain it is with actual numbers. 50% of 100 is not the same as 50% of 200. Though the ratio may be the same, the wholes are not the same.

Whats is six over 9 + 1 over 3

Answers

Step-by-step explanation:

6/9 + 1/3

= 6/9 + 3/9

= 9/9

= 1.

32% of what number is 56

Answers

let 32% of x = 56

32%*x = 56
32/100 *x = 56
x = 56*100/32
x = 5600/32 = 175

hence, 32% of 175 is 56.

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