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Oduvanchick [21]
3 years ago
9

You take a three-question true or false quiz. You guess on all the questions. What is the probability that you will get a perfec

t score?
Mathematics
2 answers:
DedPeter [7]3 years ago
7 0
These are all independent events being that answering one question does not effect the other questions. Each question can be either true or false....so the probability of getting 1 correct is 1/2.

the probability of getting them all correct is : 1/2 * 1/2 * 1/2 = 1/8 <=
prisoha [69]3 years ago
4 0
It would be 1/8. 2 to the third is 8, and all three answers correct is one option.
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Plz can you help me on this
lisabon 2012 [21]

Answer:

100=2x2x5x5 or 2^2x5^2

70=2x5x7

hcf=2x5

735=3x5x7x7

1050=2x3x5x5x7

hcf=3x5x7

people=8

5 0
3 years ago
To amend U.S. Constitution, 3/4 of the 50 states must approve the amendment. If 35 states approve an amendment, will the Constit
Elodia [21]
To answer the question we need to know if 35 out of 50 states is equal or greater than 3/4 if that is the case, the Constitution will be ammended, and that is represented like this:
35/50 >= 3/4
that inequality is saying that 35 states out of 50 is equal or greater than 3/4, lets simplify and modify the fractions to compare easily:
<span>35/50 >= 3/4
</span>7/10 <span>>= 3/4
</span>now we need to find the least common multiplier of 10 and 4 to take the fractions to a common denominator and compare easy. Lets multiply numerator and denominator for a correct number to get the fractions to denominator common 20, the lcm:
7/10 <span>>= 3/4
</span>(2/2)(7/10) >= (5/5)(3/4)
2*7/2*10 >= 5*3/5*4
14/20 >= 15/20
we can see that the inequality does not hold, so,
<span>35/50 >= 3/4
</span>does not hold either, therefore the Constitution cannot be ammended
5 0
3 years ago
Read 2 more answers
Find the product.........................
allochka39001 [22]

Answer:

B


Step-by-step explanation:


<u>To find the answer, you have to </u><u>multiply each term of the first parenthesis' expression with each term in the next parenthesis' expression.</u><u> Then </u><u>combine like terms</u><u>.</u> So we have:


(6x^2-6x-5)(7x^2+6x-5)\\=(6x^2)(7x^2)+(6x^2)(6x)+(6x^2)(-5)+(-6x)(7x^2)+(-6x)(6x)+(-6x)(-5)+(-5)(7x^2)+(-5)(6x)+(-5)(-5)\\=42x^4+36x^3-30x^2-42x^3-36x^2+30x-35x^2-30x+25\\=42x^4-6x^3-101x^2+25


Answer choice B is right.

6 0
3 years ago
The height of a cylinder is 5 centimeters. The diameter of the base of the cylinder is 16 centimeters. Find the lateral surface
soldier1979 [14.2K]

Answer:

Lateral surface area of the cylinder =251.2 cm^2

Step-by-step explanation:

  Lateral surface area of he cylinder = 2*\pi*r*h  i.e area of side surface.

Height(h) = 5 cm

Diameter = 16 cm

radius(r)= 16/2= 8 cm

Lateral surface area of the cylinder = 2*\pi *8*5                        

                                                                         \pi =\frac{22}{7}=3.14

               L.S.A=  2*3.14*8*5

              L.S.A=  251.2 cm^2

The lateral surface area of the cylinder with radius 8 cm and height 5 cm is 251.2 cm^2

6 0
3 years ago
Pls help on these and thku
USPshnik [31]
The answer is (x-3)(x-5)
7 0
3 years ago
Read 2 more answers
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