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2 years ago

At summer camp the ratio of boys to girls was 7:2 If there were 21 boys how many girls were there?

1 answer:

3 0

$Ratio:\\7:2\\\\
7x-number\ of\ boys\\2x-number\ of\ boys\\\\
7x=21\ \ \ |:7\\
x=3\\\\
2x=2*3=6\\
Number\ of\ girls\ is\ equal\ to\ 6.$

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Suppose that a ball is dropped from the upper observation deck of the CN Tower in Toronto, 450 m above the ground. Find the velo

mr Goodwill [35]

Answer:

1350

Step-by-step explanation:

460 X 3

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2 years ago

Using the midpoint method, find the cross-price elasticity of demand for FedEx and UPS overnight shipping if the price of FedEx

IrinaK [193]

Answer:

Cross price elasticity using midpoint method = 0.56

Step-by-step explanation:

Using the mid-point method

Cross-price Elasticity of Demand = % change in Quantity demanded of UPS

% change of price of FedEx

%change in Quantity demanded of UPS

using Mid-point method = Q2-Q1 × 100

(Q1+Q2)÷ 2

= 1.3-1.2 × 100

(1.2+1.3)÷2

= 0.1 × 100

1.25

= 8%

% change in price of FedEx

using midpoint method = P2-P1 × 100

(P1+P2)÷ 2

= 75-65 × 100

(65+75)÷2

= 10 × 100

= 14.28%

Cross-price Elasticity of Demand = 8% ÷ 14.28%

using midpoint method = 0.56

6 0

2 years ago

Which of the following describes the graph of y = StartRoot negative 4 x minus 36 EndRoot compared to the parent square root fun

RoseWind [281]

Answer:

stretched by a factor of 2, reflected over the y-axis, and translated 9 units left

Step-by-step explanation:

The given function is $y=\sqrt{-4x-36}$

We can rewrite this function by factoring -4 in the radicand to get:

$y=\sqrt{-4(x+9)}$

We further simplify the square root of 4 to get:

$y=2\sqrt{-(x+9)$

The parent function is $y=\sqrt{x}$

When we compare to the parent function, there is a stretch by a factor of 2, reflection over the y-axis, and translation 9 units left

The last option is correct

3 0

2 years ago

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Find the area of this quadrilateral. Explain or show your strategy.

Verizon [17]

Answer:

24 units

Step-by-step explanation:

1) Separate this quadrilateral into 2 triangles

2) Multiply the height by the width of one of the triangle

- Multiply 8×3

= 24

4 0

1 year ago

All of the following expressions are equal to N except _____. |−N| −(−N) |N| −N

Maksim231197 [3]

Answer:

D. -N

Step-by-step explanation:

Our four given expressions are:

A. |-N|

B. -(-N)

C. |N|

D. -N

The | | symbols represent absolute value, which is the distance from the value within the two lines and 0; essentially since it measures distance, absolute value always outputs a positive value.

In choice A, we have |-N|, which means the distance between -N and 0. Well, the distance will simply be N, which is equal to N. Eliminate A.

In choice B, we have -(-N). Double negatives signal that they will cancel out to become positive, so -(-N) = N. Eliminate B.

In choice C, we have |N|, which means the distance between N and 0. This is clearly just N, so eliminate C.

In choice D, we have -N, which denotes "negative N". Clearly, "negative N" (-N) is not the same as "positive N" (N), so D is the answer.

~ an aesthetics lover

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2 years ago

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