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Mama L [17]
3 years ago
10

The population of the United States the about 3.2 × 10 ^ 8 the population of the United States is about 80 times the population

of Oregon white right the population of Oregon in scientific notation
Mathematics
1 answer:
Ainat [17]3 years ago
6 0

Answer:

4 x 10^{6}

Step-by-step explanation:

3.2 x 10^{8} = 320,000,000

320,000,000 ÷ 80 = 4,000,000

4,000,000 = 4 x 10^{6}

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Use algebra tiles to find the difference. Let one yellow tile equal +1 and one red tile equal –1. 8 – (–6)
Sauron [17]

We draw 10 white tiles.

Then we shade in 9 of them.

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4 0
3 years ago
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Solve the system of equations using the substitution method.
Karolina [17]
Substitution is where we first Isolate one of the unknowns, express it in terms of the other unknown, and replace the isolated unknown with the other unknown in another equation. So that each time we only need to deal with one unknown. I think you'll get a better idea here:

First name these 2 equations with 1 and 2.
4x + 5y = 7 (1)
y = 3x + 9 (2)

Since y is already isolated in (2), so we can skip the isolation step and continue to substitute.

Substitute (2) into (1).
4x + 5(3x+9) = 7

Expand.
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Group.
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Shift +45 to the other side and turn it into -45.

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Shift x19 to the other side, turn it into /19.
X = - 38/19
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Now we solved x already, we can just substitute x= - 2 back to equation (2).

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3 0
2 years ago
Half of a set of the parts are manufactured by machine A and half by machine B. Ten percent of all the parts are defective. Six
baherus [9]

Answer:

The probability that a part was manufactured on machine A is 0.3

Step-by-step explanation:

Consider the provided information.

It is given that Half of a set of parts are manufactured by machine A and half by machine B.  

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Let d represents the probability that part is defective.

Ten percent of all the parts are defective.

P(d) = 0.10

Six percent of the parts manufactured on machine A are defective.

P(d|A)=0.06

Now we need to find the probability that a part was manufactured on machine A, and given that the part is defective :

P(A|d) =\frac{P(A \cap d)}{P(d)}

P(A|d) =\frac{P(d|A)\times P(A)}{P(d)}\\P(A|d)= \frac{0.06\times 0.5}{0.10}

P(A|d)= 0.3

Hence, the probability that a part was manufactured on machine A is 0.3

8 0
2 years ago
2x+3y=6<br> 3x-y=2<br> How many solutions does this have, one, none or infinite
sergey [27]
Y=-2/3x + 2
y=3x-2

one because the slopes are different

6 0
3 years ago
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