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Soloha48 [4]
4 years ago
6

Which statement is true

Mathematics
1 answer:
Step2247 [10]4 years ago
7 0
The first statement is true because 10 x 50 = 500
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Please help and show work
mestny [16]
18- 5x
19- 6x
I'm not sure but I had a test like this
7 0
3 years ago
Please help!<br><br> -1 1/3 ÷ 2 2/5=
muminat
The answer to this equation is -1/15
7 0
2 years ago
Read 2 more answers
Nts) in a certain population of voters, 72% of them plan to vote in favor of a new
Ganezh [65]

Answer:

Probability that 10 of them plan to vote against this piece of  proposed legislation is 0.0701 or 7.01 %.

Step-by-step explanation:

Consider the event of voting against the piece as success, 'p'. So, voting in favor of the piece is failure and denoted by 'q'.

Given:

Sample size is, n=25

Probability of failure is, q=72\%=0.72

Therefore, probability of success is, p=1-q=1-0.72=0.28

Number of successes is, x=10

Now, from Bernoulli's distribution, probability of x successes out of n samples is given as:

P(X=x)=_{n}^{x}\textrm{C}p^xq^{n-x}

Here, n=25,x=10,p=0.28,q=0.72. Therefore,

P(X=10)=_{25}^{10}\textrm{C}(0.28)^{10}(0.72)^{25-10}\\P(X=10)=_{25}^{10}\textrm{C}(0.28)^{10}(0.72)^{15}\\P(X=10)=3.269\times 10^{6}\times 2.962\times 10^{-6}\times 7.244\times 10^{-3}\\P(X=10)=70.142\times 10^{-3}=0.0701=7.01\%

Therefore, probability that 10 of them plan to vote against this piece of  proposed legislation is 0.0701 or 7.01 %.

8 0
3 years ago
physics convention 11 companies set up equal sized square booths in a row along one wall of a convention center.The booths are a
givi [52]

Answer:

Side length of each booth is 8.35 ft approximately.

Step-by-step explanation:

There are 11 companies set up equal sized square booths in a row along one wall of a convention center.

Now, refer the diagram to answer the problem.

It is given area is 1200.

So, length x width =1200

(11x+24)(x+2)=1200

Multiply using FOIL method.

11x^{2}+22x+24x+48=1200

11x^{2}+46x+48-1200=0

11x^{2}+46x-1152=0

Solve using quadratic formula

x=\frac{-46+/- \sqrt{46^{2}-4(11)(-1152 } }{2(11)}

x=\frac{-46+/-\sqrt{2116+50688} }{22}

x=\frac{-46+/-\sqrt{52804} }{22}

Simplify it

x=\frac{-49+/- 229.79}{22}

Simplify to get two values for x.

x=8.35; x=-12.67

Here negative does not work.

Side length of each booth is 8.35 ft.

3 0
3 years ago
Follow the steps to solve for the variable in this two-step equation: 5×-10=0
lorasvet [3.4K]

Answer:

x=2

Step-by-step explanation:

5x-10=0           add 10 on both sides

  +10 +10

--------------          -10-10=0

                            0+10=10

5x=10

5x=10        divide 5x by 5 and 10 divided by 5

---   ---

5     5

x=2 because 10 divided by 5=2

5 0
3 years ago
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