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3 years ago

Choose the graph that matches the inequality y < –2x + 4.

Mathematics

2 answers:

Dafna1 [17]3 years ago

5 0

Answer:

I belive this would be C

Step-by-step explanation:

IceJOKER [234]3 years ago

4 0

Answer:

Step-by-step explanation:

You know that if its < or >, the line is - - - -, not a fully dark line.

So it would be either A or C

Plot in some numbers for x

Less than would be to the left.

So it wouldn't be A, leaving us with C

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Read the problem below and find the solution.

dybincka [34]

Answer:

440 ft

Step-by-step explanation:

Ball dropped and we start count from that moment:

160 ft down
80 ft up and down
40 ft up and down
20 ft up and down, end

Total distance:

160 + 80*2 + 40*2 + 20*2 = 440 ft

7 0

3 years ago

A computer software vendor claims that a new version of its operating system will crash fewer than 10 times per year on average.

Oksana_A [137]

Answer:

Step-by-step explanation:

The hypothesis is written as follows

For the null hypothesis,

µd ≤ 10

For the alternative hypothesis,

µ > 10

This is a right tailed test

Since no population standard deviation is given, the distribution is a student's t.

Since n = 97

Degrees of freedom, df = n - 1 = 97 - 1 = 96

t = (x - µ)/(s/√n)

Where

x = sample mean = 8.9

µ = population mean = 10

s = samples standard deviation = 3.6

t = (8.9 - 10)/(3.6/√97) = - 3

We would determine the p value using the t test calculator. It becomes

p = 0.00172

Since alpha, 0.01 > than the p value, 0.00172, then we would reject the null hypothesis. Therefore, At a 1% level of significance, there is enough evidence that the data do not support the vendor’s claim.

3 0

3 years ago

I've been trying for 3 hours to answer these problems please help!!

Simora [160]

Answers:

77 = 8.8

23 = 4.8

31 = 5.6

46 = 6.8

9 = 3

53 = 7.3

108 = 10.4

10 - 3.2

4 0

4 years ago

Help me below pleasse

pashok25 [27]

The answer is c (7,8)

3 0

3 years ago

Read 2 more answers

Its pretty straight forward, (Questions in image)

Mama L [17]

2) Find the area of a parallelogram with a height of 8 inches and a base of 14 inches.

A=bh=14·8=112in²

3) Find the surface Area of the rectangular prism with a length of 15 cm, height of 7 cm, and width of 5 cm.

A=2(wl+hl+hw)=2·(5·15+7·15+7·5)=430cm²

4) Find the volume of the following figure:

$V=\frac{lwh}{3} =\frac{16*8*9}{3} =384$

5) You are wrapping a cube shape present that is 9 inches tall. How much wrapping paper will you need to wrap the entire present.

SA = $l*w*h$ = 9x9x9 = 729in²

6) A truck has a trailer that has a length of 13ft, a width of 6ft, and a height of 8ft. What is the volume of the trailer?

$V=whl=6*8*13=624$

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3 0

2 years ago

Read 2 more answers

Choose the graph that matches the inequality ­ y < –2x + 4.

Choose the graph that matches the inequality y < –2x + 4.