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lozanna [386]
3 years ago
11

What is the range of f(x)=x2+4 if the domain is {2,0,1}

Mathematics
1 answer:
Bumek [7]3 years ago
3 0
F(x)=x2+4=2*2+4=4+4=8 when x=2
f(x)=x2+4=0*2+4=4 when x=0
f(x)=x2+4=1*2+4=6 when x=1
Have a nice day!!! ^^

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Find x<br> options;<br> a) 21√2/2<br> b) 21√2<br> c) 21√3/2<br> d) 7
pishuonlain [190]

The value of x is  21√2/2

The correct option is (A)

<h3>What is Trigonometry?</h3>

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.

In triangle having angle 60.

sin 60 = P/ 7√3

√3/2= P/7√3

2P= 21

P= 21/2

Now again

cos 45= 21/2/x

1/√2 = 10.5/x

x=  21√2/2

Learn more about trigonometry here:

brainly.com/question/26719838

#SPJ1

6 0
2 years ago
Find the range of f(x)=2/5x + 5 for the domain (-4, -2, 0 3)
vaieri [72.5K]

Answer:

Your answers are correct

Step-by-step explanation:

5 0
3 years ago
∠ABC is adjacent to ∠CBD. If the m∠ABC=4x+23, m∠CBD=6x+7, and m∠ABD=130°, what is the measure of angle ABC? (Show your work)
Hunter-Best [27]

Answer:

\angle ABC=63\textdegree

Step-by-step explanation:

\angle ABC=4x+23\\\angle CBD=6x+7\\\angle ABD=130\textdegree \\\angle ABD=\angle ABC+\angle CBD\\\\\Rightarrow4x+23+6x+7=130\\\Rightarrow10x+30=130\\\Rightarrow10x=100\\\Rightarrow x=10

Substitute the value of x

\angle ABC=4x+23\\=4\times10+23\\=40+23\\=63

7 0
3 years ago
John and some friends went to a sushi restaurant and ordered some sushi. He bought 2 Ahi Tuna, 1 California Roll, and 1 Eel Roll
Andrew [12]

Answer:

Let "a" represent amount of ahi tuna, "c" represent California rolls, and "e" represent eel rolls.

John: 2a+c+e=26.20

Sally: 3c = 17.85

5 0
3 years ago
There are 255 students this term completing this same assignment. Assuming they calculated the CI correctly, how many students s
andrey2020 [161]

Answer:

The number of students we expect to have an interval that does not contain the true mean value is,  255\times [\alpha\%].

Step-by-step explanation:

A [100(1 - α)%] confidence interval for true parameter implies that if 100 confidence intervals are created then [100(1 - α)] of these 100 confidence intervals will consist the true population parameter value.

Here α is the significance level. It is defined as the probability rejecting the claim that the true parameter value is not included in the 100(1 - α)% confidence interval.

It is provided that 255 students create the same confidence interval, correctly.

Then the number of students we expect to have an interval that does not contain the true mean value is,  255\times [\alpha\%]

For instance, if the students are creating a 95% confidence interval for mean then the number of students we expect to have an interval that does not contain the true mean will be:

The significance level is:

Confidence\ level=100(1-\alpha)\\\frac{95}{100}=(1-\alpha)\\\alpha =1-0.95=0.05

Number of students we expect to have an interval that does not contain the true mean will be: 255\times [\alpha\%]=255\times 0.05=12.75\approx13

Thus, 13 of the 255 confidence intervals will not consist the true mean value.

3 0
3 years ago
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