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bezimeni [28]
3 years ago
12

Mr. Osborne needs two students to help him with a demonstration. He decides to draw two names out of a bag to make things fair.

There are 9 girls and 12 boys in his class. What is the probability that he draws the names of two boys?
Mathematics
2 answers:
Vladimir79 [104]3 years ago
8 0
Yes thrust if forest
Dovator [93]3 years ago
8 0
Answer: 2/21

Number chosen out of the total in the set.
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Find X.
seropon [69]

Answer:

x = 118 degrees approximately

Step-by-step explanation:

Here, we want to get the measure of the angle marked x

We shall use the side facing it and apply the cosine rule

The side facing the angle measures 90

Thus, we have it that;

90^2 = 55^2 + 50^2 - 2(50)(55) cos X

2575 = - -5,500 cos X

X = cos^-1(-2575/5,500)

X = 118 degrees approximately

6 0
3 years ago
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How are the functions f(x)=16^x and g(x)=16^(1/2)x related? The output values of g(x) are one-half the output values of f(x) for
Goshia [24]
F(x) =16ˣ     and   g(x) = 16⁽ˣ/₂⁾

Since 16 = 2⁴, then we can write:

f(x) =2⁽⁴ˣ⁾  and  g(x) = 2⁽⁴ˣ/₂⁾ = 2²ˣ

for x = 1 f(x) =  2⁴ = 16
for x = 1 g(x) = 2² = 4
(√16 = 4)

for x = 2 f(x) =  2⁸ = 256
for x = 2 g(x) = 2⁴ =16
(√256) = 16

for x = 3 f(x) =  2¹² = 4096
for x = 1 g(x) = 2⁶ =  64
(√4096 = 64)

We notice that:
The output values of g(x) are the square root of the output values of f(x) for the same value of x.
 
6 0
3 years ago
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Select all of the following expressions that are equivalent to 0.25.
lora16 [44]

1. (0.5)2=1

2. (-0.2) + (-0.05) = -0.25

3. |-3 + 2.75| = 0.25

4. -(-0.25) = 0.25

5. 2x - 1.75x = 0.25x


So your answers are 3 and 4.


6 0
2 years ago
What is the product?
Marina86 [1]

Answer:

\frac{2}{k+2}

Step-by-step explanation:

Simplify the expression and you will get this.

hope this helps

3 0
2 years ago
What is the solution set of the equation x2 +3x-4=6
stealth61 [152]
X^2 + 3x - 4 = 6

x^2 + 3x -10 = 0

(x + 5)(x - 2) =0

x = -5 or x = 2

solution set is {-5,2}
6 0
3 years ago
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