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Elden [556K]
3 years ago
11

What is the STIMULUS in the following situation: All of the students go home or

Mathematics
1 answer:
kolbaska11 [484]3 years ago
7 0
I think it’s c the bell ringer
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5х2 +х — 9 – х2 + 5х – 4<br> Simplified
Pavel [41]

Answer:

the answer is 6

Step-by-step explanation:

6 0
3 years ago
A publishing company claims that in fall 2019, the average price of college textbooks for a single semester is $385. Suppose you
hram777 [196]

Answer:

We accept H₀ . We don´t have enough evidence to express the publisher claim is not true

Step by Step explanation:

We must evaluate if the mean of the price of college textbooks is different from the value claimed by the publisher

n < 30 then we must use t - distrbution

degree of freedom   n  - 1     df = 22 - 1     df = 21

As the question mentions " different " that means,  a two-tail test

At 0,01 significance level     α  = 0,01       α/2  =  0,005

and t(c)  = 2,831

Test Hypothesis

Null Hypothesis                      H₀          μ  =  μ₀

Alternative hypothesis           Hₐ          μ  ≠  μ₀

To calculate t(s)

t(s)  =  (  μ  -  μ₀ ) /σ/√n

t(s)  =  (  433,50 - 385 ) / 86,92 / √22

t(s)  =  2,6171

Comparing   t(c)   and t(s)

t(s) < t(c)

Then  t(s) is in the acceptance region we accept H₀. We don´t have enough evidence to claim that mean price differs from publisher claim

6 0
3 years ago
Find a solution of the linear inequality <br> y ≥ 4x - 5
ivolga24 [154]

Step-by-step explanation:

-5>4 because it is based on formula

5 0
2 years ago
What is the slope of a line that is perpendicular to the line represented by the equation 2x−5=−y?
Liula [17]

Answer:

\frac{1}{2}

Step-by-step explanation:

First, you need to get the equation into y = mx + b form, like this:

Add y to both sides to get y + 2x − 5= 0

Then subtract 2x to get y - 5 = -2x

Add 5 to get y = -2x + 5

Now we know the slope is -2, or -2/1.

A line that is perpendicular to it has a slope that is the first line's slope's opposite reciprocal. This means flip the fraction upside down and change the sign, which gives you positive 1/2.

3 0
3 years ago
F(x) = x2 – 3x + 18
weqwewe [10]

Answer:

Step-by-step explanation:

The discriminant is part of the quadratic formula.  If the value of the discriminant is less than 0, you have 2 imaginary solutions; if the discriminant is equal to 0, you have 1 real solution; if the discriminant is greater than 0, you have 2 real solutions.

The discriminant is b^2-4ac, which for us, looks like this:

(-3)^2-4(1)(18) which simplifies to -63.  That means that the solutions are imaginary...not real at all.  So in answer to your question, there are no real zeros at all.

6 0
3 years ago
Read 2 more answers
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