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julia-pushkina [17]
4 years ago
12

Which expression is equivalent to 56+48A.6(9+8)B.7(8+6)C.8(7+6)D.9(6+8)Show WORK

Mathematics
1 answer:
Elanso [62]4 years ago
7 0

C.8(7+6) is the right answer because 8x7=56 and 8x6=48 so, 56+48=104

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On a certain standardized test used for college entrance purposes, the mean score was 21 and the standard deviation was 5. The d
Fiesta28 [93]

Answer:

A

Step-by-step explanation:

Carlos' score was 2 standard deviations from the mean, so his z-score was 2.0. You can either use the empirical 68-95-98.5 rule, or you can plug it into your calculator as <u>normalcdf(-999, 2) = .977</u>

So 97.7% of people had a score lower than Carlos!

.977 * 1.5 million = 1,465,500 people

5 0
4 years ago
Write the equation in standard form y+2=3/5(x + 5)
KiRa [710]
If by standard form, you mean ax+by= c, here is how to solve.

To write the equation in standard form, move each variable term to the left side of the equation and simplify.

y+2=3/5(x + 5)
y+2= (3/5*x) + (3/5*5)
y+2= 3/5x + (3*5)/5
y+2= 3/5x +15/5
y+2= 3/5x + 3
subtract 3/5x by both sides
-3/5x+y+2= 3
subtract both sides by 2
-3/5x+y=1
multiply by 5 to eliminate fraction
-3x + 5y= 5

ANSWER: -3x + 5y= 5

Hope this helps! :)
7 0
4 years ago
Jim and Carla are scuba diving. Jim Started out 10 feet below the surface. he descends 18 feet, rose 5 feet, and descended 12 mo
Viefleur [7K]

Carla rested at: -33


Jim rested at: -35

Now it is up to you to figure who was at the greater depth. I did the calculations for you all you have to do is compare:)))) GOOD LUCK its not hard now



6 0
3 years ago
What is the square root of 675 estimated
harkovskaia [24]
It probably would be 676
6 0
3 years ago
Read 2 more answers
C.is decrease by 1 foot every 500 miles D. Is decrease by 1 foot every 1000 miles
Tasya [4]

Answer:

Option A

Step-by-step explanation:

Slope of a line passing through two points (x_1,y_1) and (x_2,y_2) is given by,

Slope = \frac{y_2-y_1}{x_2-x_1}

Line shown in the graph is passing through two points (2, 8000) and (4, 7000).

Therefore, slope of the given line = \frac{8000-7000}{2-4}

                                                        = -500 feet per mile

Which means, altitude decreases by 500 ft every mile.

(Negative sign represents the decrease)

Option A is the correct option.

4 0
3 years ago
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