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MA_775_DIABLO [31]
3 years ago
14

What value correctly fills in the blank so that the expressions are equivalent?

Mathematics
2 answers:
Step2247 [10]3 years ago
8 0

Answer:

8

Step-by-step explanation:

8*4 is 32 8*9 is 72

so, it is 8

since it is distributive property 8(4+9)

kati45 [8]3 years ago
4 0

Answer:

8

Step-by-step explanation:

1) simplify the equation

32+72=104

104=4x+9x (distibute the "x")

104=13x

x=8

hence the "blank" is 8

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Suppose you purchase a bundle of 18 bare-root broccoli plants. The sales clerk tells you that on average you can expect 8% of th
neonofarm [45]

Answer:

There is a 57.18% probability that you will lose at most 1 of the broccoli plants.

Step-by-step explanation:

For each plant, there are only two possible outcomes. Either they die, or they do not. This means that we can solve this problem using the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem, we have that

There are 18 plants, so n = 18.

8% of the plants die before producing any broccoli. So p = 0.08.

Use the binomial formula to find the probability that you will lose at most 1 of the broccoli plants.

This is

P = P(X = 0) + P(X = 1)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{18,0}.(0.08)^{0}.(0.92)^{18} = 0.2229

P(X = 1) = C_{18,1}.(0.08)^{1}.(0.92)^{17} = 0.3489

P = P(X = 0) + P(X = 1) = 0.2229 + 0.3489 = 0.5718

There is a 57.18% probability that you will lose at most 1 of the broccoli plants.

7 0
4 years ago
Find the ranges giving brainlest
scoray [572]

Answer:

The range for Problem 18 is

16.1

The range for problem 19 is

167

Step-by-step explanation:

To find the range you subtract the smallest value from the largest value. In problem 18 the largest value was 17.6 and the smallest was 1.5.

17.6 - 1.5 = 16.1

In problem 19 the largest value was 181 and the smallest was 14

181 - 14 = 167

5 0
2 years ago
Rob's family ate 3 5/8 pizzas at a local restaurant. Each pizza weighs 1 1/4 kg. Which expression can be used to determine how m
aleksklad [387]

Answer:

b

Step-by-step explanation:

g

4 0
3 years ago
What is the value of 6z÷22+5y when y=3 and z=6 ?
Mnenie [13.5K]
The must be b because I got 16.66666
5 0
3 years ago
2x+y=70<br> 2y+z=110<br> x+y+z=?
Alexeev081 [22]
No solution
Because 3 unknown needs 3 equation at least
7 0
3 years ago
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