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3 years ago

Adittion of letters with powers

1 answer:

8 0

To add or subtract with powers, both the variables and the exponents of the variables must be the same. You perform the required operations on the coefficients, leaving the variable and exponent as they are.

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Two different floor plans are being offered in a new housing development. Several prospective

cricket20 [7]

Answer:

0.912

Step-by-step explanation:

The complete question is attached.

"OR" in probability means "ADDITION". So we find the individual probabilities and "ADD" them.

P(Plan A) would be the total people for plan A (add up column of Plan A) divided by total number of people [add up all the numbers].

Looking at the table, we have:

P (Plan A) = 38/68

Now,

P(40-49 Group) can be found by adding up the row of 40-49 age group and dividing by the total. So, we have:

P(40 - 49 Group) = 24/68

Now, adding up both:

38/68 + 24/68 = 62/68 = 0.912

7 0

3 years ago

Pls help -21 ÷ b = 3, b = ? and uhm this one too 3c + 1 = 10, c = ?

AfilCa [17]

Answer:

-21 ÷ b = 3, b = b=-7

3c + 1 = 10, c = c=1/7

Hope this helps!

5 0

3 years ago

Two wires

xz_007 [3.2K]

Answer:

am i suppoesd to do number 7 as well?

Step-by-step explanation:

Two wires

tether a balloon to the ground, as shown. How

high is the balloon above the ground? (Must Use Right

Triangle Trigonometry)

look at picture

4 0

3 years ago

I need helpppppppppppp

ratelena [41]

The answer to question 3 is D. 15(4a+3). And the answer to question 4 is A. 90. Have a great day

7 0

3 years ago

Lucy throws a fair six sided dice . so like the letter that matches the probability of the dice landing on a number between 1 an

irakobra [83]

Answer:

Letter B matches the probability.

Step-by-step explanation:

Lucy throws a fair six sided dice.

Probability of the dice landing on a number between 1 and 6 = $\frac{\text{Favorable outcome}}{\text{Number of events}}$

= $\frac{1}{6}$

On a number line fraction $\frac{1}{6}$ can be represented by,

An small section (A to B) will represent the fraction = $\frac{1}{6}$

Therefore, letter B will match the probability of a dice landing on a number between 1 and 6.

4 0

3 years ago