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3 years ago

(32 - 20) ÷ 4 I need the example

Mathematics

1 answer:

insens350 [35]3 years ago

7 0

The answer is 3. 32-20=12. 12/4 is 3

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I understand I need help on this.

Anvisha [2.4K]

Answer:

A. 168 units³

Step-by-step explanation:

volume = area of bas × height

volume = (6)(7)/2 × 8

volume = 168 units³

4 0

3 years ago

Factor the polynomial F(x) =x^3-x^2-4x+4 completely.

Norma-Jean [14]

Answer:

Step-by-step explanation:

PART 1:

Possible roots by noticing the coefficient of first term:

x = 1, -1

PART 2:

1 | 1 -1 -4 4

1 0 -4

1 0 -4 0

The remainder is zero, hence one factor is (x-1)

PART 3:

$x^3-x^2-4x+4=(x^2-4)(x-1)\\\\x^3-x^2-4x+4=(x+2)(x-2)(x-1)$

PART 4:

$f(x)=(x+2)(x-2)(x-1)\\\\=(x^2-4)(x-1)\\\\=x^3-4x-x^2+4\\\\=x^3-x^2-4x+4$

6 0

3 years ago

Simplify 4 n5 + 3.5 n5 + (-2.1 n5 ).

Alona [7]

Step-by-step explanation:

Step 1: Let's simplify step-by-step.

$4n^5 + 3.5n^5 - 2.1n^5$

$= 4n^5 + 3.5n^5 + -2.1n^5$

Step 2: Combine Like Terms:

$= 4n^5 + 3.5n^5 + -2.1n^5$

$= (4n^5 + 3.5n^5 + -2.1n^5)$

$= 5.4n^5$

Answer:

$=5.4n^5$

Hope this helps.

7 0

3 years ago

1/2x+y=10 solving literal equation

hram777 [196]

Step-by-step explanation:

1 x-y = 10

multiply by 2

2* (1 x+y) =10

x+y=20

5 0

3 years ago

Suppose a normal distribution has a mean of 48 and a standard deviation of 2. What is the probability that a data value is betwe

stepan [7]

Answer:

Choice D. 15.2%

Step-by-step explanation:

We have a normal...

mean u = 48

standard deviation s = 2

We want P(43 < X < 46)

We standardize.

Consider P(43 < X) = P( (43 - 48)/2 < Z) = P(-2.5 < Z)

P( X < 46) = P( Z < (46 - 48)/2 ) = P(Z < -1)

We want P( -2.5 < Z < -1)

Look at Z-scores.

P( Z < -2.5) = 0.0062

P(Z < -1) = 0.1587

so P(-2.5 < Z < -1) = P(Z < -1) - P(Z < -2.5) = 0.1587 - 0.0062 = 0.1525 = 15.2%

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3 0

4 years ago