All categories

2 years ago

I need help asap!!!!!!!!!!!

Mathematics

2 answers:

sergeinik [125]2 years ago

5 0

First, we need to total the number of students that took the test:
1 student got between 1-20%
3 students got between 21-40%
5 students got between 41-60%
8 students got between 61-80%
8 students got between 81-100%
Therefore, the sum of the students is 1+3+5+8+8 = 25 students in total
There were 16 students who got a 61% or above, so the fraction of students that got a 61% or higher is 16/25. Convert this to a decimal, and we get 0.64. To convert from decimal to percent, multiply the decimal by 100%, and the final answer is 64% of students got a 61 or better on the exam.

Reil [10]2 years ago

3 0

Ur answer will be 8% and do u need me to explain

You might be interested in

Oh gosh I dunno any of this-<br><br> Trigonometry

egoroff_w [7]

Answer:

Step-by-step explanation:

<u>Triangle 1</u>:

Problem:

Find leg $a$ of a right triangle if hypotenuse $c=10$ and angle $\alpha =25^o$ .

Solution:

$a$ ≈ $4.2262$

Explanation:

To find leg $a$ use formula:

$\text{sin}(\alpha )=\frac{a}{c}$

After substituting $\alpha =25^o$ and $c=10$ we have:

$sin(25^o)=\frac{a}{10}\\0.4226=\frac{a}{10}\\a=0.4226\times10\\$

$a=4.2262$

<u>Triangle 2</u>:

Problem:

Find leg $b$ of a right triangle if leg $a=4$ and angle $\alpha =20^o$ .

Solution:

$b$ ≈ $10.9899$

Explanation:

To find leg $b$ use formula:

$\text{tan}(\alpha)=\frac{a}{b}$

After substituting $\alpha =20^o$ and $a=4$ we have:

$tan(20^o)=\frac{4}{b}\\0.364=\frac{4}{b}\\b=\frac{4}{0.364}\\b =10.9899$

8 0

1 year ago

Read 2 more answers

Which of the following functions best describes this graph ?

IrinaVladis [17]

Answer:

Step-by-step explanation:

As seen from the graph , the function cuts the x-axis at 4 and 5. So, the roots of function are 4 and 5.