All categories

3 years ago

Pls help or i get an F on my grade

Mathematics

2 answers:

GarryVolchara [31]3 years ago

6 0

Answer:

$250

Step-by-step explanation:

Westkost [7]3 years ago

3 0

Answer:

$150

Step-by-step explanation:

200 * 0.75 = 150

Hope this helps :D

You might be interested in

Phil has 19 other students in his math class. During class one day, the teacher asks for a volunteer to come up to the board. If

GenaCL600 [577]

Answer:

1/19

Since there are 19 students in the class, and this is a question of Phil.

Since there is only 1 Phil, it will be 1/19.

8 0

3 years ago

Solve for x. 7 (x - 3) = 4 (x + 5) A. x= 1/11 B. x= 1/3 C. x= 41/11 D. x= 41/3

Alexeev081 [22]

Answer: D is the answer

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Please help, I am so confused

Dmitry_Shevchenko [17]

Answer:

$\huge\boxed{25.2\ m}$

Step-by-step explanation:

In order to find the length of the missing side here, we must note that these triangles are similar.

Therefore their lengths are proportionate to each other.

So,

$\frac{27.6}{11.5} = \frac{x}{10.5}$

We can solve for x by cross multiplying.

$10.5\cdot 27.6 = 289.8\\\\289.8 \div 11.5 = 25.2$

Hope this helped!

5 0

3 years ago

How to write 6.716 im fraction

Varvara68 [4.7K]

Answer:

To write 6.716 as a fraction you have to write 6.716 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

6.716 = 6.716/1 = 67.16/10 = 671.6/100 = 6716/1000

And finally we have:

6.716 as a fraction equals 6716/1000

7 0

3 years ago

A researcher claims that the variation in the salaries of elementary school teachers is greater than the variation in the salari

guajiro [1.7K]

Answer:

The null hypothesis is $H_o : \sigma^2_1 = \sigma^2 _2$

The alternative hypothesis is $H_a : \sigma_1 ^2 > \sigma^2_2$

$F_{critical} = 1.8608$

$F = 2.9085$

The decision rule is

Reject the null hypothesis

There is sufficient evidence to support the researchers claim

Step-by-step explanation:

From the question we are told that

The first sample size is $n_1 = 30$

The sample variance for elementary school is $s^2_1 = 8324$

The second sample size is $n_2 = 30$

The sample variance for the secondary school is $s^2_2 = 2862$

The significance level is $\alpha = 0.05$

The null hypothesis is $H_o : \sigma^2_1 = \sigma^2 _2$

The alternative hypothesis is $H_a : \sigma_1 ^2 > \sigma^2_2$

Generally from the F statistics table the critical value of $\alpha = 0.05$ at first and second degree of freedom $df_1 = n_1 - 1 = 30 - 1 = 29$ and $df_2 = n_2 - 1 = 30 - 1 = 29$ is