Ask question

Ask question

All categories

3 years ago

13

How many different triangles can be constructed with side lengths 5 inches, 7 inches, and 15 inches? exactly one triangle more

than one triangle no triangles

2 answers:

zhannawk [14.2K]3 years ago

8 0

No triangle can be constructed.<span />

AysviL [449]3 years ago

5 0

I Just did the test and the answer was no triangle can be constructed.

You might be interested in

at an aquarium six out of 18 deliveries are plants out of 15 delivery's in one week how manybare plants

earnstyle [38]

Do six multiply fifteen which equals to 90

5 0

3 years ago

40 POINTS been stuck on this i'd mean alot for yall to help i'll mark brianliest

g100num [7]

Answer:

For the first blank: 8

For the second blank: I think it's 913

Step-by-step explanation:

First blank: To find the area of a square do (Length * Width) For the roof do 15 * 25 to get 375. Then divide by 100 and you get 3.75 but round to 4

That's for 1 half of the roof so do cover the whole roof you need 8.

8 0

3 years ago

Read 2 more answers

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

Help someon in need of making a 100 to pick my grade up plzz

Marat540 [252]

Answer:

Step-by-step explanation: 10x10=100

D and b

3 0

2 years ago

Eleven is 20% of ____

ollegr [7]

Convert to a decimal which would be 0.55 (11/20).

Then you want to multiply 0.55 by 100 (which is a whole number, all % is going to come from 100) to convert to a full % -> 0.55*100

Then you will simplify 0.55*100

You answer will be 55%.

5 0

3 years ago

Read 2 more answers