3 years ago

All equations are identies, but not all identies are equations True or False

1 answer:

5 0

ANSWER: It is false that All equations are identities, but not all identities are equations, as all identities are equations, but only some equations are identities.

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On a map, the scale is 1 inches = 50 miles. For each map distance, find the actual distance for: 12 inches

Free_Kalibri [48]

Answer:

600 miles

Step-by-step explanation:

Since the scale is given as 1 inch = 50 miles

Then to get the distance when given 12 inches in a map we do cross multiplication as follows

1 inch = 50 miles

12 inch=x miles

By cross multiplication

1 inch*x miles=50 miles *12 inches

Making x the subject of formula then

X=50*12/1=600 miles

Therefore, the actual distance is 600 miles

8 0

3 years ago

Travis plays a trivia game. He earns 2 points for each correct answer and loses 0.5 points for each incorrect answer. He gets 13

Oksana_A [137]

earns 2 points for each correct answer

loses 0.5 points for each incorrect answer

13 correct answers

2 incorrect answers

13 (2)-2(0.5) = 26-1 = 25

Score = 25 points

8 0

1 year ago

Which solution to the equation StartFraction 1 Over x minus 1 EndFraction = StartFraction x minus 2 Over 2 x squared minus 2 End

Darina [25.2K]

Answer:

x = - 4

Step-by-step explanation:

Given the expression

$\frac{1}{x-1} = \frac{x-2}{2x^2-2}$

This can also be expressed as;

$\frac{1}{x-1} = \frac{x-2}{2(x-1)(x+1)}\\1 = \frac{x-2}{2(x+1)}$

Cross multiply

$2(x+1) = x - 2\\2x+2 = x-2$

Add 2 to both sides

$2x+2+2 = x-2+2\\2x+4 = x\\2x-x = -4\\x = -4$

Hence the required extraneous solution is x = -4

4 0

3 years ago

Read 2 more answers

Please help! I will mark brainlest.

Ksju [112]

Answer:

x = NoSolutions

Step-by-step explanation:

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3 years ago

Read 2 more answers

Write 43 as a sum of powers of 2.<br> (2 Has to be the Base not the exponent)

slamgirl [31]

Answer:

2⁰ + 2¹+ 2⁵ +2³ = 43

Step-by-step explanation:

since 43 is odd, we know 2⁰ or 1 must be one of the sums

43 - 2⁰ = 42

42 - 2¹ = 40

16 = 2⁴

40-2(16) = 40 - 2⁵ = 8

8 = 2³

adding this all together

2⁰ + 2¹+ 2⁵ +2³ = 43

6 0

4 years ago