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iVinArrow [24]
2 years ago
7

A multiple choice quiz has two questions , each with five answer choices. Only one choice is correct. Find the probability of an

swering two questions correctly,
. Show work
Mathematics
1 answer:
Leokris [45]2 years ago
4 0

Answer:

1/25 to get both correct

Step-by-step explanation:

So the probability of getting one choice correct is 1/5

Since 5 choices 1 is correct

now we have to get 2 in a row correct so

1/5*1/5=1/25

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(5x-12)+(3x+30)+(48)
skelet666 [1.2K]

Answer:

8x+66

Step-by-step explanation:

8 0
2 years ago
If a and b are rational numbers and 5 +2 root 3/7+4 root3=a-b root 3;then a and b=
Usimov [2.4K]

Answer:

           \bold{a=5\,,\quad b=-4\frac27}

Step-by-step explanation:

5+\frac{2\sqrt3}7+4\sqrt3=5+\frac27\sqrt3+4\sqrt3=5+4\frac27\sqrt3=5-(-4\frac27)\sqrt3

6 0
3 years ago
What are the zeros of this polynomial and state their multiplicity at each <br> y=(x-5)(x+2)^2
N76 [4]

Answer:

C.

Step-by-step explanation:

The zeros of a polynomial are the x-intercepts of the function. To find them, we factor the polynomial and set each factor equal to 0.

This polynomial is already factored so set each to 0 and solve for x.

x-5=0\\x=5\\(x+2)^{2}=0 \\(x+2)=0\\x=-2

This means x=-2, 5. Each zero or root has a multiplicity - the number of times the factor occurs. This is also known as the exponent of the factor expression.

(x+5) occurs once since it has exponent 1.

(x+2)^{2} occurs twoce since it has exponent 2.

x=5 mult. 1, x=-2 mult. 2



7 0
3 years ago
PLEASE HELP ME PLSSSSSSSSZZ
adoni [48]

Answer:

The answer is 5.

Step-by-step explanation:

Use order of operations. Parentheses come first, so I will compute what is in parentheses first. 11-3 is 8. Then, division comes next. I will divide 8 by 2 to get 4. Lastly, add 1 to get 5.

5 0
3 years ago
The expanded form of x0 is what
Anestetic [448]

Answer:

Can't really expand x and 0, so I guess it would just be x * 0

Step-by-step explanation:

explained above :)

4 0
2 years ago
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