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Alex
3 years ago
9

Solve the system of equations Y=-2x+5 and y=x^2+3x+9

Mathematics
1 answer:
Andre45 [30]3 years ago
4 0

I think

x= -4, -1 and y=13, 8

(-4, 13) and (-1, 8)

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56 times a number minus 13 is equal to 6 less than the number.
Eddi Din [679]

Answer:

<h2>Z = 19/56</h2>

<h2>OR Z = 0.34</h2>

Step-by-step explanation:

The steps in the photo above

I hope that is useful for you :)

4 0
2 years ago
Help! The answer must me exact! Will rate you if correct!!
Maslowich

Answer:

The Correct Answer is 7.071

Step-by-step explanation:

Trust me, if its wrong report me, if its right mark me brinaliest pls

3 0
3 years ago
Sam decided to lose weight and went on a diet. The figure below depicts a graph, showing how his weight changed during the year.
elena-14-01-66 [18.8K]

Answer:

100kg

Step-by-step explanation:

On the graph 100kg is where the line starts so that his weight when he started. Hope this made sense!

6 0
2 years ago
Read 2 more answers
2. Company A packages roofing nails in boxes that are normally distributed with a mean of 276 nails and a standard deviation of
Natali5045456 [20]

Answer:

Company B

Step-by-step explanation:

We would use z score formula

z = (x - μ) / σ

x = raw score

μ = mean

σ = Standard deviation

let x = 260 with the mean μ1 = 276 and standard deviation σ = 5.8

let x = 260 with the mean μ2 = 252 and standard deviation σ = 3.4

z1 = (x- μ1) / σ = (260- 276) / 5.8 = -2.7586206897 = -2.76

z2 = (x2 - μ) / σ = (260 -252) / 3.4= 2.3529411765 = 2.35

Comparing the two z scores, we can see that company B has the probability of producing 260 nails because it has a z score of 2.35 compared to company A with a z score of -2.76.

6 0
3 years ago
Is the square root of 400 rational or irrational
STatiana [176]

Rational number, because the Square root of 400 is 20, since 20 x itself is 400. Hope this helps!

6 0
3 years ago
Read 2 more answers
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