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3 years ago

Correct answer will get brainliest

Mathematics

1 answer:

sineoko [7]3 years ago

8 0

Answer:

B 2/3

Step-by-step explanation:

it's positive 2 over 3

up two and over three

because it's rise over run

so your answer would be the 2nd option or B

I hope this helps! have a nice day/night, blessings, xx, nm <3 :)

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What is m∠CDJ ? Enter your answer in the box. ° Line A K and line M J intersect at a right angle at point D. Line L C also passe

Wittaler [7]

I think the answer is 34 tell me if i'm wrong I would love to see my mistakes hope this help plz leave a brainist

3 0

3 years ago

Read 2 more answers

Someone help i need an answer

soldi70 [24.7K]

Remember that the formula for the perimeter of a rectangle is:

$2w + 2l$

$w$ is the width of the rectangle
$l$ is the length of the rectangle

Thus, in this case, you can see that we are adding two of the same monomials and two of another monomial. One monomial is $x + 15$ and another monomial is $x + 5$ . In this case, these monomials would fulfill the perimeter equation of a rectangle.

Applying this perimeter structure, we can find that this expression represents a perimeter equation of a rectangle with sides x + 15 and x + 5.

8 0

4 years ago

On a certain hot summer's day, 435 people used the public swimming pool. The daily prices are $ 1.50 for children and $ 2.50 fo

Rufina [12.5K]

#1 1.5x + 2.5y = 884.50

#2 x + y = 435

Remember, x represents the children and y represents the adult

The first equation represents the cost of tickets, while the second one represents the number of people.

Find x in equation #2 & plug it into equation #1.
(usually choose easiest equation to solve first, but it's your preference)

x + y = 435
x = 435 - y. ***

Use the equation*** above and plug it into equation #2.

Plugging in x, to solve for y:

1.5(x) + 2.5y = 884.50

1.5(435 - y) + 2.5y = 884.50

652.50 - 1.5y + 2.5y = 884.50
(subtract 652.50 from both sides)

-1.5y + 2.5y = 232

y = 232

Solve for x using equation #2 (or whichever you prefer) and plug in y.
x + y = 435
x + 232 = 435
(subtract 232 from both sides)

x = 203

There were 203 children and 232 adults at the pool that day.

5 0

3 years ago

Toxaphene is an insecticide that has been identified as a pollutant in the Great Lakes ecosystem. To investigate the effect of t

Likurg_2 [28]

Answer:

This data suggest that there is more variability in low-dose weight gains than in control weight gains.

Step-by-step explanation:

Let $\sigma_{1}^{2}$ be the variance for the population of weight gains for rats given a low dose, and $\sigma_{2}^{2}$ the variance for the population of weight gains for control rats whose diet did not include the insecticide.

We want to test $H_{0}: \sigma_{1}^{2} = \sigma_{2}^{2}$ vs $H_{1}: \sigma_{1}^{2} > \sigma_{2}^{2}$ . We have that the sample standard deviation for $n_{2} = 22$ female control rats was $s_{2} = 28$ g and for $n_{1} = 18$ female low-dose rats was $s_{1} = 51$ g. So, we have observed the value

$F = \frac{s_{1}^{2}}{s_{2}^{2}} = \frac{(51)^{2}}{(28)^{2}} = 3.3176$ which comes from a F distribution with $n_{1} - 1 = 18 - 1 = 17$ degrees of freedom (numerator) and $n_{2} - 1 = 22 - 1 = 21$ degrees of freedom (denominator).

As we want carry out a test of hypothesis at the significance level of 0.05, we should find the 95th quantile of the F distribution with 17 and 21 degrees of freedom, this value is 2.1389. The rejection region is given by {F > 2.1389}, because the observed value is 3.3176 > 2.1389, we reject the null hypothesis. So, this data suggest that there is more variability in low-dose weight gains than in control weight gains.

8 0

3 years ago

Determine which situation could be represented by the system of linear inequalities given below

Dovator [93]

Answer:

The answer is (B)

Step-by-step explanation:

It would not be a, the maximum score is 180, so it would be less than or equal to.

It is (B), since they need to sell at least 40 bags a day, and max is 180.

Hope this helps!

6 0

3 years ago

Read 2 more answers