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lapo4ka [179]
3 years ago
6

Twice a number and the square of a number are 35Write the equation and the answer

Mathematics
1 answer:
love history [14]3 years ago
7 0

Answer:

equation:

x^2 + x

answer:

5^2 + 7

i think thats right

i am not sure i had a similar question and this was my answer

Step-by-step explanation:

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99PTS!!!!!!!! What is the approximate area of this backyard pond?
lozanna [386]
I would say A) is your answer.

This is my choice, so I might be wrong.

Glad I could help, and good luck!

8 0
3 years ago
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Which table shows a proportional relationship between x and y
Anettt [7]

Answer: A, and their proportional relationship is 5

Step-by-step explanation:

7 0
3 years ago
A line intersects the points(-22,-14) and (-18,-12). What is the slope-intercept equation for this line?
zaharov [31]

Hello there,

Well we are going to start off with the equation to find the slope based on the given points:

                                                    \frac{y_{2} - y_{1}  }{x_{2} -x_{1} }

Now using the two given points we are going to plug in and solve:

                                         \frac{(-12)-(-14)}{(-18)-(-22)} = \frac{2}{4} = \frac{1}{2}

From this you know that \frac{1}{2} is the slope of the equation. However, to find the y-intercept we are going to use y = mx+ b and plug in one of the points to solve:

                                        (-14) = \frac{1}{2} (-22) + b

                                        (-14) = (-11) + b

                                         -3 = b

That means that the y-intercept is at (0, -3). Lastly, we are just going to plug all this into the slope-intercept form:

                                       y = \frac{1}{2} - 3

Hope I helped,

Amna

6 0
3 years ago
A public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes. Kar
ch4aika [34]

Answer:

We conclude that the mean waiting time is less than 10 minutes.

Step-by-step explanation:

We are given that a public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes.

Karen took bus number 14 during peak hours on 18 different occasions. Her mean waiting time was 7.8 minutes with a standard deviation of 2.5 minutes.

Let \mu = <u><em>mean waiting time for bus number 14.</em></u>

So, Null Hypothesis, H_0 : \mu \geq 10 minutes      {means that the mean waiting time is more than or equal to 10 minutes}

Alternate Hypothesis, H_A : \mu < 10 minutes    {means that the mean waiting time is less than 10 minutes}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                       T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean waiting time = 7.8 minutes

             s = sample standard deviation = 2.5 minutes

             n = sample of different occasions = 18

So, <u><em>test statistics</em></u> =  \frac{7.8-10}{\frac{2.5}{\sqrt{18} } }  ~ t_1_7

                              =  -3.734

The value of t test statistics is -3.734.

Now, at 0.01 significance level the t table gives critical value of -2.567 for left-tailed test.

Since our test statistic is less than the critical value of t as -3.734 < -2.567, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u>we reject our null hypothesis</u>.

Therefore, we conclude that the mean waiting time is less than 10 minutes.

5 0
3 years ago
What is the value of the underline digit 56.123 1 is underlined.A.ten B.one C.one-tenth D.one-hundredth ? Not sure if it is ten
Triss [41]
1 is in the one-tenths place. If 2 was in this spot, it would be two-tenths.

Here are the place values for the question's given number of 56.123.

5- tens
6- ones
decimal
1- tenths
2- hundredths
3- thousandths

ANSWER:
1 has the place value of C) one-tenth

Hope this helps! :)
6 0
3 years ago
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