All categories

3 years ago

PLEASE HELP 20 POINTS

Mathematics

2 answers:

Step2247 [10]3 years ago

8 0

Answer:

x = 20

Step-by-step explanation:

If a line is parallel to a side of a triangle and it intersects the other two sides then it divides those sides proportionally.

This is the case here thus

$\frac{11}{121}$ = $\frac{10}{5x + 10}$ ( cross- multiply )

11(5x + 10) = 1210

55x + 110 = 1210 ( subtract 110 from both sides )

55x = 1100 ( divide both sides by 55 )

x = 20

Finger [1]3 years ago

8 0

The value of x would equal to 20

You might be interested in

Two chemists working for a chicken fast-food company, have been producing a very popular sauce. Let’s call then Jesse and Mr. Wh

a_sh-v [17]

Answer:

Check the explanation

Step-by-step explanation:

Let $\overline{x}$ and $\overline{y}$ be sample means of white and Jesse denotes are two random variables.

Given that both samples are having normally distributed.

Assume $\overline{x}$ having with mean $\mu_{1}$ and $\overline{y}$ having mean $\mu_{2}$

Also we have given the variance is constant

We can test hypothesis as

$H0: \mu_{1} = \mu_{2}H1: \mu_{1} > \mu_{2}$

For this problem

Test statistic is

$T=\frac{\overline {x}-\overline {y}}{s\sqrt{\frac {1}{n1} +\frac{1}{n2}}}$

Where

$s=\sqrt{\frac{(n1-1)*s1^{2}+(n2-1)*s2^{2}}{n1+n2-2}}$

We have given all information for samples

By calculations we get

s=2.41

T=2.52

Here test statistic is having t-distribution with df=(10+7-2)=15

So p-value is P(t15>2.52)=0.012

Here significance level is 0.05

Since p-value is <0.05 we are rejecting null hypothesis at 95% confidence.

We can conclude that White has significant higher mean than Jesse. This claim we can made at 95% confidence.

3 0

3 years ago

Rewrite the expressions in each pair so that they have the same base. c) (1 /2)^2x and (1/ 4)^x - 1

just olya [345]

I'm not completely sure but this is what I would do.
evaluate <span>(1/ 4)^x - 1 </span>as is. But change the (1 /2)^2x to (2/4)^2x. This way both fractions have the same denominator and in this sense, the same base. The 2/4 base still evaluates into 1/2 so nothing, mathematically, is being broken here.

7 0

3 years ago

How many yards off the line of scrimmage does the pass rusher need to line up?

stich3 [128]

The pass rusher, which is typically line up on the line of scrimmage.

Have a Great Day :)

3 0

3 years ago

PLEASE HELP WITH QUESTION THANK U

Darya [45]

What question I didn't get it

6 0

3 years ago

The ratio of Dobermans to terriers is 2:7. There are 774 dogs altogether.

kaheart [24]

Answer:

172-602 I think

Step-by-step explanation:

6 0

2 years ago