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2 years ago

Rosa finishes the trail first. How long, in minutes (min), does she have to wait for Peng to finished?

Mathematics

1 answer:

prisoha [69]2 years ago

7 0

Answer:

what is the full problem?

Step-by-step explanation:

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A survey 50 randomly selected students showed that 38 students by lunch at school and 12 students bring lunch from home each day

masha68 [24]

12/50=24% of student bring lunch so 24%-524=398 student buy lunch out of 524

8 0

2 years ago

I don't even know how to figure this out. I don't have a formula for this

yuradex [85]

Answer:

$\sin\theta=\dfrac{15}{17}$

$?=15$

Step-by-step explanation:

Use the trigonometry formula

$\cos^2\theta+\sin^2\theta=1$

You are given that

$\cos \theta=\dfrac{8}{17}$

Substitute into the first formula

$\left(\dfrac{8}{17}\right)^2+\sin^2\theta=1\\ \\\dfrac{64}{289}+\sin^2\theta=1\\ \\\sin^2\theta=1-\dfrac{64}{289}=\dfrac{289-64}{289}=\dfrac{225}{289}\\ \\\sin \theta=\pm \dfrac{15}{17}$

Angle $\theta$ is acute angle, then the sine of this angle is positive and

$\sin\theta=\dfrac{15}{17}$

3 0

3 years ago

What is the area of this rectangle?

nataly862011 [7]

Answer: 18 units squared

Step-by-step explanation:

To find area of a rectangle use A=lw

we can count the units for both and get...

11x2=18

So 18 units squared

3 0

2 years ago

Simplify expression with rational exponents.

musickatia [10]

27^(4/3)+4^(3/2) can be simplified using roots.

The cube root of 27 is 3 and the square root of 4 is 2. This removes the denominators from the expression. The expression is now 3^4+2^3.

Simplify this and you get 81+8=89

5 0

3 years ago

Help Me for number 1 & 2

mafiozo [28]

This may not be correct but Georgia will be about nine if u subtract 6 from 15... And as for Jerry, if he swims for 4 hours, at 2 miles, he might be swimming 480 miles.. 2x60 (aka and hour x 2) 120.. Do that 4 times and u end up with about 480.. So sorry if I'm wrong

6 0

3 years ago