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irinina [24]
3 years ago
5

Can someone help me?

Mathematics
2 answers:
qaws [65]3 years ago
4 0

Answer:

D. All real numbers.

Step-by-step explanation:

This expression  can have any real number assigned to x.

Temka [501]3 years ago
4 0

Answer:

The input is all real numbers

Step-by-step explanation:

The domain is the input to the function

f(x) = x^2 + 3x +5

There is no limit to what we can put in the function so

The input is all real numbers

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Ok but why are so many people doing face reveals on this app?!? Anyways…
NeTakaya

Answer:

bru its cool

Step-by-step explanation: lol

4 0
2 years ago
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It is generally believed that the mean value of the district's total SAT score distribution is equal to 1200 (the null hypothesi
g100num [7]

Answer:

The corresponding p-value, is p = 1

Step-by-step explanation:

The maximum score SAT score, n =  1,600

The mean of the district's total SAT score distribution = 1,200

The claim of one of the districts principal, is the that mean of the district's total SAT score distribution ≠ 1,200

Using proportions, we have;

p = 1,200/1,600 = 0.75

q = 1 - p = 0.25

The margin of error, E = Z√(p·q/n)

∴ E = 5% = Z×√((0.75 × 0.25)/1,600)

z = 0.05/(√((0.75 × 0.25)/1,600)) ≈ 4.61880

Therefore, the corresponding p-value, p = 1

7 0
2 years ago
Find the value of x. Round you answer to the nearest tenth.<br> 20<br> 18<br> X
Zielflug [23.3K]

Answer:

  21.9

Step-by-step explanation:

The altitude of an isosceles triangle bisects the base. So, x represents the hypotenuse of a right triangle with legs of 9 and 20. It can be found using the Pythagorean theorem:

  x^2 = 9^2 +20^2 = 81 +400

  x = √481 ≈ 21.932

The length x is about 21.9 units.

4 0
2 years ago
Please help! I will give out brainlist.
Ainat [17]

Answer:

Step-by-step explanation:

This is a Pythagorean Theorem Question

c^2 = a^2 + b^2

c= sqrt(5)

a = x

b = x            This is an isosceles right triangle. The vertical side and the horizontal side are equal.

x^2 + x^2  =  sqrt(5)^2

2x^2 = 5                           Divide both sides by 2

x^2 = 5/2                          Take the sqrt of both sides.

√x^2 = √5 / √2                Multiply right side by √2 on both top and bottom

x = √5*√2 / √2*√2

x = √10 /2

7 0
2 years ago
12 cm<br> 14 cm<br> 1<br><br> -<br> Find volume
Anettt [7]

Answer:

<h3>Volume of cylinder = 6,330.24 cm</h3>

Solution:

Volume of cylinder = area of base × altitude

Volume = πr² × altitude

V= 3.14 × 12² × 14

V = 3.14 × 144 × 14

V = 6,330.24 cm

4 0
2 years ago
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