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Marta_Voda [28]
3 years ago
8

What is the domain of the square root function graphed below?

Mathematics
1 answer:
Xelga [282]3 years ago
5 0

Answer:

Set the expression inside the square root greater than or equal to zero. We do this because only nonnegative numbers have a real square root, in other words, we can not take the square root of a negative number and get a real number, which means we have to use numbers that are greater than or equal to zero.

Step 2: Solve the equation found in step 1. Remember that when you are solving equations involving inequalities, if you multiply or divide by a negative number, you must reverse the direction of the inequality symbol.

Step 3: Write the answer using interval notation.

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Зr2 + 6r - 4 = -2 +5
Step2247 [10]

Answer:

deciaml form would be 0.825742185

Step-by-step explanation:

5 0
3 years ago
The scores of the quizzes of five students in both English and Science are:
vredina [299]

Answer:

0.23

Step-by-step explanation:

Given the data:

____(x) __(y)__(x - m1) /s1 ___(y-m2) /s2

1 ___6 ___8__ - 0.2 _______0.625

2 __5 ___ 5__ - 0.7________ - 1.25

3 __9____6__ 1.3 ________ - 0.625

4__ 4____ 7__ - 1.2 ______ 0

5__ 8 ____9 _ 0.8 _______ 1.25

For English :

Mean score(m1) = 6.4

Standard deviation (s1) = 2.0

For Science :

Mean score (m2) = 7.0

Standard deviation (s2) = 1.6

n = number of observations = 5

Correlation Coefficient (r) :

r = 1/(n - 1) Σ[((X - m1) / s1) * ((Y - m2) /s2)]

(-0. 2 * 0.625) + (-0.7 * - 1.25) + (1.3 * - 0.625) + (-1.2 * 0) + (0.8 * 1.25) = 0.9375

r = 0.9375/(5-1)

= 0.234

= 0.23

6 0
3 years ago
If 19.3% of children and adolescents are obese (14.4M), what is the total number of children and adolescents overall? Please i n
Anna35 [415]

Answer:

74,611,399

Step-by-step explanation:

Percentage of obese children and adolescent = 19.3%

19.3% = 14.4 million

The overall number of children and adolescent equals a total percentage of 100%

Hence,

If 19.3 % = 14.4 million

100% = x

Cross multiply :

19.3% x = 100% * 14.4 million

0.193x = 14400000

x = 14400000 / 0.193

x = 74611398.964

Total number of children and adolescent = 74,611,399

4 0
3 years ago
A circle has a diameter of 2.5 ft.
alukav5142 [94]
A = pi * r^2
D = 2.5 so r = 1.25
A = 3.14 * 1.25^2
A = 4.9 ft^2
8 0
3 years ago
Jason is 2017 federal income tax is $3,500. He entitled to a $1,000 tax credit which reduces the amount of his tax bill to what
Sergeu [11.5K]

Answer:

The amount of his tax bill is <u>$2,500</u>.

Step-by-step explanation:

Given:

Jason is 2017 federal income tax is $3,500.

He entitled to a $1,000 tax credit.

Now, to find the tax bill.

Amount of income tax = $3,500.

Tax credit = $1,000.

Thus, by subtracting the tax credit from income tax amount we get the amount of Jason tax bill:

3500-1000

=2500.

Therefore, the amount of his tax bill is $2,500.

8 0
4 years ago
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