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polet [3.4K]
2 years ago
15

PLS HELP ASAP :) Explain pls also!

Mathematics
1 answer:
Andru [333]2 years ago
6 0
11 students received a score of 80 or better because the chart says that 7 students received a score of 80-89 and 4 students received a score of 90-100
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I need help! Find the measure of all sides. Round to the nearest tenth.
Ivanshal [37]

Answer:

let \: the \: angle \: be \:  \alpha  \\  \tan( \alpha )  =  \frac{p}{b}  \\  \tan(16.8) =   \frac{2.7}{x}  \\ x =  \frac{2.7}{0.30 }  \\ x = 9 \\ now \: by \: using \: pythagoras \: theorem \:  \\ h =  \sqrt{p {}^{2} }  + b {}^{2}  \\ h =  \sqrt{ {2.7}^{2} }  +  {9 }^{2}  \\ h = 9.396

4 0
2 years ago
Select the equivalent expression. 2^-4 = ?​
mrs_skeptik [129]

Answer:

1/16

Step-by-step explanation:

This means 1/2x2x2x2  = 1/16

7 0
2 years ago
In the cafeteria tables are arranged in groups of 4, with each table seating 8 students. How many students can sit at 10 groups
Arisa [49]
4 tables = 1 group. So in 10 groups of tables, there are 40 tables. Each table seats 8 students, so you multiply 8 by 40, and that leaves your answer as 320 students. :)
4 0
2 years ago
In a right angle,the altitude to a 6ft hypotenuse.Find the length of the altitude and each leg.
Nuetrik [128]

Answer:a=3.6 and b=4.8

Step-by-step explanation:(a^2)+(b^2)=(c^2)

Where c is hypotenuse is equal to 6. A right triangle is also known as a 3,4,5 triangle where the 2 legs are 3 and 4 and hypotenuse is 5. Find the factor in size difference by dividing your hypotenuse of 6 by the hypotenuse of 5 you get 1.2. Now multiply the 3 and 4 by 1 2 to get your answers of 3.6 and 4.8.

To check work simply plug in your legs as a and b

(3.6^2)+(4.8^2)=(6^2)

(12.96)+(23.04)=(36)

6 0
3 years ago
I need help plzzzzzzzz
jok3333 [9.3K]
1minutethat the answer
7 0
3 years ago
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