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Stels [109]
3 years ago
10

A class is made up of 10 boys and 4 girls. Half of the girls wear glasses. A student is selected at random from the class what i

s the probability that the student is a girl with glasses
Mathematics
2 answers:
ZanzabumX [31]3 years ago
8 0

Answer:

2/14 or 1/7

Step-by-step explanation:

Half the girls where glasses so 2 girls.

there are only 2 girls that wear glasses out of all the 14

so the answer is 2/14

NikAS [45]3 years ago
8 0
Answer:
1 in 6 chance or 16.6- percent chance (17% chance rounded up)


Explanation: So first of all the probability of a girl getting called in general is a 4 in 14 chance. Or a 25% chance. We can figure this out by finding out the amount of girls, and adding it by the guys, and putting the girls as the numerator. Since half the girls wear glasses, this puts it down to 2 girls in all, simply replace the 4 with a 2 and you have a 2 in 14 chance, which simplifies to a 1 in 6 chance. Thus, the probability would be a 1 in 6 chance, or 16.6- chance.
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I got
X+B=4
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5 0
2 years ago
A shooting star forms a right triangle with the Earth and the Sun, as shown below:
Semmy [17]

I found this!!!!

The scientist can use these two measurements to calculate the distance between the Sun and the shooting star by applying one of the trigonometric functions: Cosine of an angle.

- The scientist can substitute these measurements into cos\alpha=\frac{adjacent}{hypotenuse}cosα=

hypotenuse

adjacent

and solve for the distance between the Sun and the shooting star (which would be the hypotenuse of the righ triangle).

Step-by-step explanation:

You can observe in the figure attached that "AC" is the distance between the Sun and the shooting star.

Knowing the distance between the Earth and the Sun "y" and the angle x°, the scientist can use only these two measurements to calculate the distance between the Sun and the shooting star by applying one of the trigonometric functions: Cosine of an angle.

This is:

cos\alpha=\frac{adjacent}{hypotenuse}cosα=

hypotenuse

adjacent

In this case:

\begin{gathered}\alpha=x\°\\\\adjacent=BC=y\\\\hypotenuse=AC\end{gathered}

α=x\°

adjacent=BC=y

hypotenuse=AC

Therefore, the scientist can substitute these measurements into cos\alpha=\frac{adjacent}{hypotenuse}cosα=

hypotenuse

adjacent

, and solve for the distance between the Sun and the shooting star "AC":

cos(x\°)=\frac{y}{AC}cos(x\°)=

AC

y

AC=\frac{y}{cos(x\°)}AC=

cos(x\°)

y

7 0
3 years ago
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Answer:

$56.67

Step-by-step explanation:

$30+$21.50+$50=101.50

$101.50-$18=$83.50

$83.50-$26.83=$56.67

4 0
2 years ago
Please help me please
hram777 [196]

Answer:

detailed explanation is in image

Step-by-step explanation:

ans is 60 unit²

4 0
2 years ago
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marishachu [46]
A total of 48 students will not go to college
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3 years ago
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