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Zinaida [17]
3 years ago
13

Which ordered pair is a solution of this

Mathematics
1 answer:
Lostsunrise [7]3 years ago
7 0
It would be (0,-4).
If you do 9(0) + 7(-4) it would be 0 + -28 which equals -28.
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A 51 foot piece of wire is cut into 3 sections so that the first section is three times as long as the second section and the se
kirill [66]

Answer:

The length of the longest section x = 36 ft

Step-by-step explanation:

Total length of the wire = 51 ft

Let first section of wire = x

Second section of wire = y

Third section of wire = z

According to given data

x = 3 y & y = 4 z

Total length of the wire = x + y + z = 51

y + 3 y + \frac{y}{4} = 51

\frac{17}{4} y = 51

y = 12

x = 3 × 12 = 36

z = \frac{y}{4} = \frac{12}{4} = 3

Therefore the length of the longest section x = 36 ft

8 0
3 years ago
Read 2 more answers
A bag contains 10 red balls, 5 blue balls and 7 green balls. Find the probability of selecting at random
Masteriza [31]

Answer:

Probably red ball because it has higher amount

4 0
3 years ago
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I can't figure out how to do this. Please show work
Oksanka [162]
I believe that on the shape is length times the width which is 56
7 0
3 years ago
Assume the competing hypotheses take the following form: H0: µ1 – µ2 = 0, HA: µ1 – µ2 ≠ 0, where µ1 is the population mean for p
DedPeter [7]

Answer:

t=\frac{\bar x_1- \bar x_2}{\sqrt{\frac{s_1^2}{n_1} +\frac{s_2^2}{n_2} } }

Step-by-step explanation:

H0: µ1 – µ2 = 0

HA: µ1 – µ2 ≠ 0

We have given,

The population variances are not known and cannot be assumed equal.

The test statistic for the test is

t=\frac{\bar x_1- \bar x_2}{\sqrt{\frac{s_1^2}{n_1} +\frac{s_2^2}{n_2} } }

Where,

\bar x_1 = sample meaan of population 1

\bar x_2 = sample mean of population 2

n_1 = sample size of population 1

n_2 = sample size of population 2

Therefore, this is the test

t=\frac{\bar x_1- \bar x_2}{\sqrt{\frac{s_1^2}{n_1} +\frac{s_2^2}{n_2} } }

7 0
3 years ago
Which of the following expressions are equivalent to -5.1/4.3
jonny [76]

Answer:

1.186

Step-by-step explanation:

3 0
3 years ago
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