All categories

4 years ago

Enter an inequality that represents the graph in the box.PLEASE HELP ME!

Mathematics

2 answers:

a_sh-v [17]4 years ago

7 0

The line is solid so we have either ≤ or ≥

find the equation of the line

ok, a y intercept if -1
sllope=rise/run=3/1=3

y=mx+b
m=slope
b=y intercept

y=3x-1 is the equaton

now find if it's y≥3x-1 or y≤3x-1

test a point
we see (0,0) Is not in in it
test it in y≥3x-1
0≥3(0)-1
0≥-1
false,
so this is the equation because (0,0) is not a valid solution for this equation

answer is y≥3x-1

Tasya [4]4 years ago

5 0

its actually y=>3x-1 because it's shaded below the line.

below the line: < or <=

above the line: > or>=

You might be interested in

It takes 1/2 cup of lemon juice to make a glass of lemonade. You have 4 cups of lemon juice. How many glasses of lemonade can yo

hammer [34]

Answer:

the correct answer would be 8

Step-by-step explanation:

1 cup of lemon juice can make 2 glasses of lemonade so you would do 4 x 2 which would leave you with 8

8 0

3 years ago

Read 2 more answers

Question 10

DiKsa [7]

Answer:

the opposite of the opposite of -9, the opposite of 6, the opposite of 4, the opposite of 0, the opposite of the opposite of 7

Explanation:

the opposite of 4 = -4

the opposite of the opposite of -9 = -9

the opposite of 6 = -6

the opposite of the opposite of 7 = 7

the opposite of 0 = 0

Then you just put them in order.

Hope this helps!

4 0

3 years ago

71x28 explain your reasoning

erastovalidia [21]

Answer:

1988.

Step-by-step explanation:

71 x 28

= 71 x 8 + 71 x 20.

= 568 + 1420

= 1,988.

8 0

4 years ago

Read 2 more answers

(3-√5)(3-√5) Please Include Steps

wariber [46]

$\left( 3 - \sqrt 5 \right) \left( 3 - \sqrt 5 \right) \\\\=\left( 3 - \sqrt 5 \right) ^2\\\\=3^2 - 2 \cdot 3 \cdot \sqrt 5 + \left( \sqrt 5 \right)^2\\\\=9-6\sqrt5 +5\\\\=14-6\sqrt 5\\\\=2(\left7-3\sqrt 5 \right)$

4 0

2 years ago

In 1943, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you on occasion consume, alc

Fynjy0 [20]

Answer:

We conclude that the proportion of adults who totally abstain from alcohol has changed.

Step-by-step explanation:

We are given that in 1943, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do you on occasion consume, alcoholic beverages?"

Of the 1100 adults surveyed, 429 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adults and 352 in

Let p = proportion of adults who totally abstain from alcohol.

where, p = $\frac{429}{1100}$ = 0.39

So, Null Hypothesis, $H_0$ : p = 39% {means that the proportion of adults who totally abstain from alcohol has not changed}

Alternate Hypothesis, $H_A$ : p $\neq$ 39% {means that the proportion of adults who totally abstain from alcohol has changed}

The test statistics that would be used here One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of adults who totally abstain from alcohol = $\frac{352}{1100}$ = 0.32

n = sample of adults surveyed = 1100

So, test statistics = $\frac{0.32-0.39}{\sqrt{\frac{0.32(1-0.32)}{1100} } }$

= -4.976

The value of z test statistics is -4.976.

Now, at 0.10 significance level the z table gives critical values of -1.645 and 1.645 for two-tailed test.

Since our test statistics doesn't lie within the range of critical values of z, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which we reject our null hypothesis.

Therefore, we conclude that the proportion of adults who totally abstain from alcohol has changed.

4 0

3 years ago