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MatroZZZ [7]
3 years ago
11

Find the domain of 3 √2t-1

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
4 0
T should be greater than or equal to 1/2
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Which polynomial function could be represented by the graph below?
quester [9]

Answer:

C

Step-by-step explanation:Only one that makes sence just look at the graph

4 0
2 years ago
X + y = 5<br> y = 3x + 1<br><br><br> How do I find the solution from these two equations by graphing
Mandarinka [93]

Answer:

x=1, y=4

Step-by-step explanation:

x+y=5 - (1)

y=3x + 1 (2)

Sub (2) into (1)

x + (3x +1)=5

4x=5-1

x=4 ÷4

=1

Sub x=1 into (2)

y=3(1)+1

= 4

5 0
3 years ago
Read 2 more answers
Young children in the United States are exposed to an average of 4.0 hours of background
Norma-Jean [14]

Answer:

The critical value approach and the p-value approach gave the same result.              

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 4 hours

Sample mean, \bar{x} = 4.5

Sample size, n = 460

Alpha, α = 0.051

Population standard deviation, σ = 1.00 hour

First, we design the null and the alternate hypothesis

H_{0}: \mu = 4.00\text{ hours}\\H_A: \mu > 4.00\text{ hours}

We use One-tailed z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{4.5 - 4}{\frac{1}{\sqrt{60}} } = 3.87

Now, z_{critical} \text{ at 0.01 level of significance } = 2.326

Since,  

z_{stat} > z_{critical}

We reject the null hypothesis and accept the alternate hypothesis. Thus, low-income families are exposed to more than 4.0 hours of daily background television.

p value at z-stat 3.87 is 0.000054. Since p-value is less than the significance level. We reject the null hypothesis.

Hence, the critical value approach and the p-value approach gave the same result.

5 0
3 years ago
URGENT PLEASE HELP!!!!!!!!!!!! Quadrilateral ABCD ​ is inscribed in a circle.
Stella [2.4K]

I got 3.33 because I just set the problem up as

4x+5=x+15

and then I did

4x-x=3x

and then I did

15=3x+5

and then

15-5=10

and then

3x=10

then

10÷3=3.33

4 0
3 years ago
Read 2 more answers
HELP ASAP PLEASE Alaina has $28 in her account. She wants to purchase a pair of shoes that costs $45. If Alaina makes the purcha
expeople1 [14]

Answer:

-17

Step-by-step explanation:

28-45= -17 dollars in her account

7 0
3 years ago
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