All categories

2 years ago

ILL MARK BRAINIEST IF YOU DO THIS CORRECTLY PLEASE HELP!

Mathematics

1 answer:

snow_tiger [21]2 years ago

3 0

Answer:

The Answer is 5/9 in the simplest form.

You might be interested in

In a psychology class, 32 students have a mean score of 93.2 on a test. Then 16 more students take the test and their mean score

liraira [26]

Answer: 83.3

Step-by-step explanation:

Formula :

$\text{Mean}=\dfrac{\text{Sum of all observations}}{\text{Number of observations}}$ (1)

$\Rightarrow\ \text{Sum of all observations}=\text{Mean x (Number of observations)}$ (2)

Given : In a psychology class, 32 students have a mean score of 93.2 on a test.

By Using (2) , Sum of scores of 32 students = 93.2 x 32 =2982.4 (3)

Then 16 have a mean score of 63.4.

Again, By Using (2) , Sum of scores of 16 students = 63.4 x 16 =1014.4 (4)

Total students = 32+16 = 48

Add (3) and (4) , we get combined score of 48 students = 2982.4+ 1014.4

=3996.8

Now , by using (2) , the mean score of all of these students together

$=\dfrac{3996.8}{48}=83.2666666667\approx83.3$

Hence, the mean score of all of these students together is 83.3.

4 0

2 years ago

In this triangle, the product of sin B and tan C is<br> and the product of sin Cand tan B is

Ipatiy [6.2K]

Answer:

$\frac{c}{a}$ and $\frac{b}{a}$

Step-by-step explanation:

sinB = $\frac{opposite}{hypotenuse}$ = $\frac{AC}{BC}$ = $\frac{b}{a}$

tanC = $\frac{opposite}{adjacent}$ = $\frac{AB}{AC}$ = $\frac{c}{b}$

Thus

sinB tanC = $\frac{b}{a}$ × $\frac{c}{b}$ ( cancel b on numerator/ denominator )

= $\frac{c}{a}$

---------------------------------------------------------------------------

sinC = $\frac{opposite}{hypotenuse}$ = $\frac{AB}{BC}$ = $\frac{c}{a}$

tanB = $\frac{opposite}{adjacent}$ = $\frac{AC}{AB}$ = $\frac{b}{c}$

Thus

sinC tanB = $\frac{c}{a}$ × $\frac{b}{c}$ ( cancel c on numerator/ denominator )

= $\frac{b}{a}$

7 0

2 years ago

PLZ HELP BRAINLIEST<br> Which of the following graphs could represent a function?

Serhud [2]

Answer:

Step-by-step explanation:

all other graphs couldnt work because their x axis do not pass the vertical line test.

please give brainliest

5 0

2 years ago

A small artichoke contains about 9 milligrams of vitamin C. It also contains about 15% of the recommended amount of vitamin C a

Tasya [4]

Answer:

Well well well.

Step-by-step explanation:

DONOVON

6 0

3 years ago

Hello I need some help with my last Question pls..

solniwko [45]

Answer:

350

Step-by-step explanation:

The difference is 35, she's spending 35 everyday

7 0

2 years ago