All categories

3 years ago

Are these similar and why?

Mathematics

1 answer:

pantera1 [17]3 years ago

8 0

Yes because they are the same shape.

You might be interested in

a car travels 83 7/10 miles on 2 1/4 gallons of fuel. which is the best estimate of the car travels on one gallon of fuel

Komok [63]

It will travel 39.11 miles on one gallon of fuel
hope it helps :)

5 0

3 years ago

Is 2 feet longer than 30 inches

loris [4]

1 foot is 12 inches. 2 feet is 24 inches. yea so I'd say 30 inches is definitely longer

5 0

3 years ago

HELP ASAP ILL GIVE BRAINLIST

Mila [183]

Answer:

Part A) ΔCGB and ΔPBE are similiar

Part B) They are similar because they are Vertical Angles/Alternate Interior Angles

Part C) Distance from B to E is 125; Distance from P to E is 275.

Step-by-step explanation:

5 0

2 years ago

Use the exponential decay model, Upper A equals Upper A 0 e Superscript kt, to solve the following. The half-life of a certai

Akimi4 [234]

Answer:

It will take 7 years ( approx )

Step-by-step explanation:

Given equation that shows the amount of the substance after t years,

$A=A_0 e^{kt}$

Where,

$A_0$ = Initial amount of the substance,

If the half life of the substance is 19 years,

Then if t = 19, amount of the substance = $\frac{A_0}{2}$ ,

i.e.

$\frac{A_0}{2}=A_0 e^{19k}$

$\frac{1}{2} = e^{19k}$

$0.5 = e^{19k}$

Taking ln both sides,

$\ln(0.5) = \ln(e^{19k})$

$\ln(0.5) = 19k$

$\implies k = \frac{\ln(0.5)}{19}\approx -0.03648$

Now, if the substance to decay to 78% of its original amount,

Then $A=78\% \text{ of }A_0 =\frac{78A_0}{100}=0.78 A_0$

$0.78 A_0=A_0 e^{-0.03648t}$

$0.78 = e^{-0.03648t}$

Again taking ln both sides,

$\ln(0.78) = -0.03648t$

$-0.24846=-0.03648t$

$\implies t = \frac{0.24846}{0.03648}=6.81085\approx 7$

Hence, approximately the substance would be 78% of its initial value after 7 years.

5 0

3 years ago

Solve for x ~ <img src="https://tex.z-dn.net/?f=2%28x%20-%203%29%20%2B%205%283x%20%2B%201%29%20-%2016x%20%3D%20x%20%5C%5C

Mars2501 [29]

Answer:

Step-by-step explanation:

3 0

2 years ago