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vredina [299]
2 years ago
11

One number is 3 less than 4 times a second number. The difference of the

Mathematics
1 answer:
s344n2d4d5 [400]2 years ago
3 0

Answer:

17 and 5

Step-by-step explanation:

Interesting question!

Turn both sentences to equations:

a=4b-3\\a-2b=7

a is the first number, and b is the second number.

A system of equations! A graphing calculator will do the work:

(See picture)

The y in the picture is a, and the x in the picture is b.

So the solution is a=17 and b=5

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The Arc Electronic Company had an income of 90 million dollars last year. Suppose the mean income of firms in the same industry
jok3333 [9.3K]

Answer:

0.0869

Step-by-step explanation:

The arc electronic company had an income of 90 million dollars last year.

Mean(μ) = 75 million dollars

Standard deviation (σ) = 11 million dollars

Probability that the randomly selected will earn more than arc did last year = Pr(x>90)

Using normal distribution,

Z = (x - μ) / σ

Z = (90 - 75) / 11

Z = 15/11

Z = 1.36

From the normal distribution table, 1.36 = 0.4131

Φ(z) = 0.4131

Recall that when Z is positive, Pr(x>a) = 0.5 - Φ(z)

= 0.5 - 0.4131

= 0.0869

8 0
3 years ago
Find the product of 4.1x10*2<br><br><br>​
Lera25 [3.4K]

Answer: 410

Step-by-step explanation:

8 0
3 years ago
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The measures of the angles of a triangle are shown in the figure below. Solve for x.
Liula [17]

Answer:

Step-by-step explanation:

x=180-59-41

x=80

3 0
2 years ago
Read 2 more answers
John used AABC to write a proof of the Centroid Theorem. He began by drawing medians AK and CL,
kumpel [21]

Answer:

Hello your question is poorly written attached below is the complete question

answer :  attached below

Step-by-step explanation:

To Prove: Z is located 2/3 of the distance from each vertex of ΔABC to the midpoint of the opposite side. we will apply ; property of bisecting a line , equality theorem , transitive property and similarity theorem

Attached below is the proof

8 0
2 years ago
Compute: 5 ∙ (2 + 3i)
dimulka [17.4K]

Answer:

It will be equal to 40

Step-by-step explanation:

We have to compute 5\times (2+3!)

Let first find 3 !

For this we have to use factorial concept

So 3! will be equal to 3! = 3×2×1 = 6

Now According to 6+2 = 8

And now after solving bracket we have to multiply with 5

So 5×8 = 40

So after computation 5\times (2+3!)=40

So the final answer will be 40

4 0
3 years ago
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