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3 years ago

Answer quickly, thank you 50 points.

Mathematics

1 answer:

pshichka [43]3 years ago

7 0

Answer:

Step-by-step explanation:

We are asked to justify the given steps:

a) AB+BC=AC : Segment addition postulate

b) 2x+6x+8 = 32: Substitution (substituted 2x for AB and 6x+8 for BC and 32 for AC)

c) 8x+8 =32 :Simplification

d)8x=24: Addition property of equality

e) x=3: Multiplication property of equality .....

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One estimate shows that the number of people without access to safe drinking water is about one billion. How much water is requi

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

1 billion = 10^9

10^9 people * (10 Liters)/person = 10^10 Liters

3 0

2 years ago

Find f(-2) for the function: f(x)= 3x^2-1, x<1 x+2, x> 1

azamat

F(x) = 3x² - 1
f(-2) = 3(-2)² - 1
f(-2) = 3(4) - 1
f(-2) = 12 - 1
f(-2) = 11

f(x) = x < 1
f(-2) = -2 < 1

f(x) = x + 2
f(-2) = -2 + 2
f(-2) = 0

f(x) = x > 1
f(-2) = -2 > 1
f(-2) = -2 < 1

8 0

2 years ago

3. Complete the sentence by choosing the proper option from the given choices.

DanielleElmas [232]

Answer:

B. is exactly 1 triangle

Step-by-step explanation:

For any given triangle, the sum of the internal angles is $180^{o}$ . Thus from the given question, adding the given angles;

30° + 70° + 80° = $180^{o}$

Therefore, only one triangle can be produced with the given measure of angles. This implies that there is exactly one triangle. So that the correct option is B.

3 0

2 years ago

Dolores and four friends went to a buffet dinner. The total costs was at most 130 dollars including the 20 dollar tip. How much

lyudmila [28]

130÷5=26 20÷5=4+26=30 each payed 30 dollars for the buffet

6 0

2 years ago

What is the square root of 50x^4

love history [14]

Answer:

5x²√2

Step-by-step explanation:

√50 $x^{4}$

The square root of x^4 is x².

The square root of 50 is 5√2.

Multiplying those two gives us 5x²√2

6 0

2 years ago