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ad-work [718]
3 years ago
10

Combine like terms: A. 7a + 7b - 13a - 11b B. -5a - 12a + 2b - 3b Explain

Mathematics
1 answer:
valkas [14]3 years ago
6 0
A. 7a i have done this before
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The sum of three integers is 228. The second integer is 1 more than the first, and the third integer is 2 more than the first. W
MaRussiya [10]
Ok so to start, your unknown numbers will ne represented as x. The equation looks like this: x+x+1+x+2=228. You have your unknown number, the number plus one, and the numner plus two. To find the answer you divide 228 by 3. Those numbers are all equal though,so you play around with them until you get 75+75+1+75+2=228
7 0
4 years ago
How many hours of sleep do most people need to function properly?
Juliette [100K]

Answer:

7

Step-by-step explanation:

8 0
3 years ago
what are the different types of geometric constraints that are applied to sketches, and what are their functions?
NemiM [27]
Some examples of geometric constraints include parallelism, perpendicularity, concentricity and symmetry. Parallelism occurs when two or more lines or axes of curves are equidistant from each other. Perpendicularity is a constraint in which lines or axes of curves intersect at right angles.
6 0
2 years ago
a. Suppose a BMW dealer in Fullerton, CA is trying to calculate the probability of his car sale for next week. The dealer knows
egoroff_w [7]

Answer:

0.45576

Step-by-step explanation:

z = (x-μ)/σ, where

x is the raw score

μ is the population mean

σ is the population standard deviation.

Standard Deviation = √variance

Mean = 50

= √9

= 3

z = 51 - 50/3

= 0.11111

Probability value from Z-Table:

P(x<51) = 0.54424

P(x>51) = 1 - P(x<51)

= 1 - 0.54424

= 0.45576

The probability that the dealer will sell 51 or more cars is 0.45576

8 0
4 years ago
Please help best gets brainlist and 5/5 and show work please
adelina 88 [10]
The answer is 12ft

Volume = (base area)(height)
900 = (75)(x)

So to figure out x you’ll need to divide 900 by 75 to get 12

Hope this helps!
4 0
3 years ago
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