All categories

2 years ago

Can someone please help me?

Mathematics

2 answers:

Keith_Richards [23]2 years ago

8 0

Because the angles of both triangles are equal, they are similar triangles, and because they share side JL, they are congruent triangles. due to this, the length of side KJ=JM, therefore 2x-7=3x-16. solving this for x, we get that x=9. And because KJ=2x-7, plugging in 9 for x we get that KJ=11 m

Rama09 [41]2 years ago

4 0

Yes I can help. what do you need

You might be interested in

Question 4 options: Find the mean and standard deviation for a binomial distribution with 680 trials and a probability of succes

lys-0071 [83]

Answer:

Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 680 trials

r = number of success

p = probability of success which in our question is 0.55

So, it means X ~ $Binom(n=680, p=0.55)$

Now, we have to find the mean and standard deviation of the given binomial distribution.

Mean of Binomial Distribution is given by;

E(X) = n $\times$ p

So, E(X) = 680 $\times$ 0.55 = 374

Standard deviation of Binomial Distribution is given by;

S.D.(X) = $\sqrt{n \times p \times (1-p)}$

= $\sqrt{680 \times 0.55 \times (1-0.55)}$

= $\sqrt{680 \times 0.55 \times 0.45}$ = 12.97

Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

3 0

3 years ago

Solve this problem 8x + 4(x-1) a. 32x+3 b. 12x-4 c. 12x+4 d. 9x-4

Lilit [14]

Answer:

Step-by-step explanation:

8x +4(x -1)

Expand by multiplying 4 into each term inside the bracket:

= 8x +4(x) +4(-1)

= 8x +4x -4

Simplify

= 12x -4

Thus, the answer is b.

7 0

1 year ago

Read 2 more answers

More help please lol

amm1812

Answer:

46.03 = 46.030

Step-by-step explanation:

they are the same nub,er except they put another zero at the end of the one on the right

4 0

2 years ago

Read 2 more answers

Nina and Ryan each ran at a constant speed for a 100-meter race. Each runner’s distance for the same section of the race is disp

Elden [556K]

"Nina and Ryan each ran at a constant speed for a 100-meter race. Each runner’s distance for the same section of the race is displayed..." Ryan had a head start of 10 meters.

This is further explained below.

<h3>Who had a head start, and how big was the head start?</h3>

Generally, To help low-income children and their families, the United States government funds a program called Head Start, which offers a variety of services including early childhood education, health care, nutrition education, and parent engagement.

In conclusion, who had a head start, and how big the head start was is; Ryan had a head start of 10 meters.