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Sonbull [250]
2 years ago
5

Keisha spent 45 minutes at soccer practice on Monday, and n minutes on Tuesday. Write an expression that represents the number o

f minutes she practiced soccer.
Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
7 0
Time spent practising soccer = 45 + N<span />
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Solution or not a solution<br><br> and because
tamaranim1 [39]

Step-by-step explanation:

X + Y = -3

X + 3x +5 = -3

X=-2

X+Y=-3

Y=-3+2

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3 years ago
Rent and other associated housing costs, such as utilities, are an important part of the estimated costs of attendance at colleg
Anton [14]

Answer: (336.49,\ 355.51)

Step-by-step explanation:

The confidence interval for population mean is given by :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 314 , which is a large sample , so we apply z-test .

Sample mean : \overline{x}=346

Standard deviation : \sigma= 86

Significance level : \alpha=1-0.95=0.05

Critical value : z_{\alpha/2}=1.96

Now, a confidence interval at the 95% level of confidence will be :-

346\pm(1.96)\dfrac{86}{\sqrt{314}}\\\\\approx346\pm9.51\\\\=(346-9.51,\ 346+9.51)\\\\=(336.49,\ 355.51)

8 0
3 years ago
What is 2 + 2 = ?..........
hjlf

Answer:

4

Step-by-step explanation:

i could be wrong

7 0
2 years ago
9. Find the value of x. Round to the nearest degree.
Setler79 [48]
I need more information to answer this
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3 years ago
HELPPPPPPPPPPP<br> Draw the graph of y = 2x + 3 on the grid
topjm [15]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

y=2x+3

This is the equation of the line

To graph a line we need two points

<em>Find the intercepts</em>

1) The y-intercept is the value of y when the value of x is equal to zero

For x=0

y=2(0)+3

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The y-intercept is the point (0,3)

2) The x-intercept is the value of x when the value of y is equal to zero

For y=0

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The x-intercept is the point (-1.5,0)

To draw the graph of the line plot the intercepts and join the points

using a graphing tool

see the attached figure

3 0
2 years ago
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