All categories

4 years ago

This is about similar polygons in geometry

Mathematics

1 answer:

Airida [17]4 years ago

6 0

Answer:

Father's shadow is 9 feet long.

Step-by-step explanation:

From the given figure,

ΔABC and PQR will be similar.

So their corresponding sides will be proportional.

$\frac{AC}{PR}=\frac{BC}{QR}$

$\frac{AC}{7.5}=\frac{6}{5}$

AC = $\frac{6\times 7.5}{5}$

AC = 9 feet

Therefore, measure of the father's shadow is 9 feet.

You might be interested in

A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 100 ml of a 2% solution and wishes to add some 8% so

son4ous [18]

Answer:

200 ml

Step-by-step explanation:

It's proportions basically.

frst off, 2% of 100 ml is 2 ml, so the 100 ml solution has 2 ml of Minoxidil.

Eventually we want 6/100 to be the porportion. so the total is going to be 100 (from the initial 100 ml) plus however much is needed x. And we want the amount of Minoxidil to be 2 + 8 percent of x. so this gets us the equation

6/100 = (2 + .08x)/(100+x) Then we solve

(100 + x) 6/100 = 2 + .08x

(100 + x) 6 = 200 + 8x

600 + 6x = 200 + 8x

400 = 2x

x = 200

so they should add 200 ml

You can check too. there is 100 + 200 ml of solution total and 2 + 16 ml of Minoxidil so that's 18/300 = 6/100

6 0

3 years ago

14x+10y=72 14x+4y=96 Solve the following system of equations using any method

Anarel [89]

  14x + 10y = 72
  14x +   4y = 96
  6y = -24
6 6
  y = -4
  14x + 10y = 72
14x + 10(-4) = 72
14x - 40 = 72
+ 40 + 40
  14x = 112
14 14
x = 8
  (x, y) = (8, -4)

5 0

4 years ago

Please help urgent 7th grade math question?! begging?

ch4aika [34]

Answer:

no. B 40x+30y=60 l think

3 0

4 years ago

If the rate of inflation is 3.4%per year, the future price pt(in dollars) of a certain item can be modeled by the following expo

Doss [256]

Answer:

The current price is $3000 and price after 9 years from today is $4054.