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3 years ago

Which equation demonstrates the distributive property?

Mathematics

2 answers:

HACTEHA [7]3 years ago

5 0

The Correct answer is: B

PIT_PIT [208]3 years ago

4 0

B because distributive property goes like this:
a(b+c)
a(b)+a(c)
That's just an example though

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Figure ABCD is a kite

Mars2501 [29]

The kite is symmetric about line segment BD.
Therefore
AB = BC
3x + 1 = 22
3x = 22 - 1 = 21
x = 21/3 = 7

Similarly,
AD = CD by symmetry
Therefore
4x = CD
4*7 = CD
28 = CD, the required line segment

Answer: 28

4 0

3 years ago

Read 2 more answers

Find the product 2x(-8)x(-9)

Elza [17]

2x(-8)x(-9)

2x8x9

16x9=144

7 0

3 years ago

Read 2 more answers

Y – 11 = 3(x – 2) in standard form

emmainna [20.7K]

Answer:

3x + y = -5

General Formulas and Concepts:

Pre-Algebra

Distributive Property
Equality Properties

Algebra I

Standard Form: Ax + By = C

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate
y₁ - y coordinate
m - slope

Step-by-step explanation:

Step 1: Define

[PS] y - 11 = 3(x - 2)

Step 2: Rewrite

Find Standard Form

Distribute 3: y - 11 = 3x - 6
Subtract 3x on both sides: -3x - y - 11 = -6
Add 11 to both sides: -3x - y = 5
Factor -1: -1(3x + y) = 5
Divide -1 on both sides: 3x + y = -5

4 0

2 years ago

How much difference do a couple of weeks make for birth weight? Late-preterm babies are born with 34 to 36 completed weeks of ge

stiks02 [169]

Answer:

a) 0.3277

b) 0.0128

Step-by-step explanation:

We are given the following information in the question:

N(2750, 560).

Mean, μ = 2750

Standard Deviation, σ = 560

We are given that the distribution of distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P (less than 2500 grams)

P(x < 2500)

$P( x < 2500) = P( z < \displaystyle\frac{2500 - 2750}{560}) = P(z < -0.4464)$

Calculation the value from standard normal z table, we have,

$P(x < 2500) = P(z < -0.4464) = 0.3277 = 32.77\%$

b) P ((less than 1500 grams)

P(x < 1500)

$P( x < 1500) = P( z < \displaystyle\frac{1500 - 2750}{560}) = P(z < -2.2321)$

Calculation the value from standard normal z table, we have,

$P(x < 1500) = P(z < -2.2321) = 0.0128 = 1.28\%$

3 0

3 years ago

Math: what is 2+7-9+11=

vlada-n [284]

2 + 7 - 9 + 11
= 9 - 9 + 11
= 0+ 11
= 11

hope it's helpful !
have a nice day :)

3 0

3 years ago

Read 2 more answers