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2 years ago

This is a similar triangle please find the missing length. (?)

Mathematics

1 answer:

chubhunter [2.5K]2 years ago

4 0

Answer is 143. See picture for explanation

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Robert owns two dogs. Each day, one dog eats

notsponge [240]

Answer:

1/3

Step-by-step explanation:

1) 1/6+1/6= 2/6

2) 2 and 6 can both be divide be 2.

2/2=1 and 6/2=3

6 0

2 years ago

Need answer with step I will give ve you 35 points.After 12 years Kishor will be 3 times as old as he was 4 years ago . Find the

tatyana61 [14]

Answer:

12 years

Step-by-step explanation:

Let Kishor's present age be denoted by x.

According to the question :

He will 3 times as old as he was 4 years ago after 12 years

Therefore, the equation is :

x + 12 = 3(x - 4)

Solving :

x + 12 = 3x - 12
3x - x = 12 + 12
2x = 24
x = 12 years

Hence, Kishor's present age is 12 years.

8 0

2 years ago

What is the perimeter of khgj?

kaheart [24]

Answer:

58 in

Step-by-step explanation:

The fact that the rectangles are congruent means both have a length of 18 in and a width of 11 in. The perimeter is ...

P = 2(L +W)

P = 2(18 in + 11 in) = 2(29 in)

P = 58 in

The perimeter of KHGJ is 58 inches.

3 0

2 years ago

I'm studying a new bacteria that doubles in numbers every 25 minutes. If i start with 50 bacteria, how long until i have 5 milli

dimaraw [331]

Answer:

415.63 minutes

Step-by-step explanation:

Growth can be represented by the equation $A=A_0e^{rt}$ . We can find the rate at which it grows by using t=25 minutes and $\frac{A_{0}}{A} =2$ or double the amount at that time. The first step we always take is to divide $A_0$ by A.

$[tex]\frac{A_{0}}{A}=e^{rt}\\2=e^{r(25)}$

$2=e^{(25)r}$

To solve for r, we will take the natural log of both sides and use log rules to isolate r.

$ln 2=ln e^{(25)r}\\ln 2=25r (ln e)\\\frac{ln2}{25} =r$

We know $lne=1$ so we were able to cancel it out and divide both sides by 25.

We solve with a calculator $\frac{ln2}{25} =r\\0.0277=r$

We change 0.0277 into a percent by multiplying by 100 to get 2.77% as the rate.

The equation is $A=A_0e^{0.0277t}$ .

We repeat the step above substituting A=5,000,000, $A_0$ =50, and r=0.02777. Then solve for t.

$5000000=50e^{0.0277t}\\\frac{5000000}{50} =e^{0.0277t}\\100000=e^{0.0277t}\\ln100000=lne^{0.0277t}\\ln100000=0.02777t(lne)\\\frac{ln100000}{0.0277} =t$