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3 years ago

Sum of 8 and a number is 5 less than 70

1 answer:

5 0

So first, you would subtract 5 from 70.
70-5=65
So then, Subtract 8 from 65. 65-8=57

So, 8+57=65, which is less than 70.

Hope this helped! :)

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Choose the inequality that represents the following graph

Nezavi [6.7K]

Answer: A

Step-by-step explanation: The reason is when the circle is empty, it means it isn't equal to and is either only less than or greater than, when the circle is full, it means it can be less than or equal to 5.

3 0

3 years ago

(-4x-2)+1/2(12x-22) simplify

Ierofanga [76]

Answer:

2x - 13

Step-by-step explanation:

Step 1 :

Simplify —

Equation at the end of step 1 :

(-4x - 2) + (— • (12x - 22))

Step 2 : Pulling out like terms :

3.1 Pull out like factors :

12x - 22 = 2 • (6x - 11)

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

12x - 22 = 2 • (6x - 11)

Equation at the end of step 3 :

(-4x - 2) + (6x - 11)

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3 years ago

If the probability of losing is <br> 7<br> 10<br> what is the probability of winning?

alexandr1967 [171]

3/10 is the probability of winning

5 0

2 years ago

30 points !!!

Assoli18 [71]

We look at the point that has not moved and another point (if neccecary)

the point that has not moved is on the axis of reflection
that pont is D
we see in my diagram that the only axis that that is on is x=0

the answer is B. x=0

8 0

3 years ago

certain computer virus can damage any file with probability 35%, independently of other files. Suppose this virus enters a folde

Ksivusya [100]

Answer:

0.623 is the probability that between 800 and 850 files get damaged.

Step-by-step explanation:

We are given the following information:

We treat virus can damage computer as a success.

P( virus can damage computer) = 35% = 0.35

The conditions for normal distribution are satisfied.

By normal approximation:

$\mu = np = 2400(0.35) = 840\\\sigma = \sqrt{np(1-p)} = \sqrt{2400(0.35)(1-0.35)} = $$23.36$

We have to evaluate probability that between 800 and 850 files get damaged.

$P(800 \leq x \leq 850) = P(\displaystyle\frac{800 - 840}{23.36} \leq z \leq \displaystyle\frac{850-840}{23.36}) = P(-1.712 \leq z \leq 0)\\\\= P(z \leq 0.428) - P(z < -1.712)\\= 0.666 - 0.043 = 0.623 = 62.3\%$

$P(800 \leq x \leq 850) = 62.3\%$

0.623 is the probability that between 800 and 850 files get damaged.

8 0

3 years ago