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Rashid [163]
4 years ago
13

Solve the linear expression 5(-3.4k-7)+(3k+21)

Mathematics
1 answer:
Marysya12 [62]4 years ago
4 0
I am just a middle-schooler, but like to answer, so I believe k is -1.
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Round 34.4678 of to two decimals​
mina [271]

Answer:

34.47

Step-by-step explanation:

When you need to round it off to the second decimal, you must look at the 3rd decimal place.

In this case, it's 7. If it's a number greater than 5 or 5, you must round off to the next value and if it is less than 5 or 5.

Since it is 7 in the third decimal place, the answer would be 34.47

6 0
3 years ago
Read 2 more answers
The table contains the data of two variables, X and Y. Which regression line shows the best fit to the random sample observation
Over [174]
I believe the answer is b!!


- hope this helped!!
7 0
3 years ago
Write the following equation in standard form. Then solve. 8q^2-5q=7q^2-8q+10
Nata [24]
You have to add the like terms in the equation
These like terms are 8q^2 and 7q^2 because they both share q^2

The other like terms are -5q and -8q because they both have ‘q’

So add them and then add extra numbers (the 10) to the equation

Hope this helps xo

7 0
3 years ago
During the first hour of operation the farm stand owner sold 15% of the apples he had. On the second hour he sold 20% of the rem
Gnesinka [82]

Answer:

22.95 kg

Step-by-step explanation:

Let's say the farm stand owner starts with x kg of apples.

During the first hour, he sells 15% of the apples:

0.15 x

This means he's left with 85% of the original apples.  During the second hour, he sells 20% of the remaining apples:

0.20 (0.85 x)

= 0.17 x

He's sold a total of 15% + 17% = 32% of the apples, so he's left with 68% of the apples.  Continuing the pattern, the apples sold during the third hour:

0.25 (0.68 x)

= 0.17 x

He's sold 49% of the apples and is left with 51%.  The apples sold during the fourth hour:

0.30 (0.51 x)

= 0.153 x

If 0.17 x = 25.5, then x = 150.  So the apples sold during the fourth hour is:

0.153 (150) = 22.95

6 0
3 years ago
(-1,4) and (3,16) in point slope form
Klio2033 [76]

Answer:

The equation of the line is y - 16 = 3(x - 3)

Step-by-step explanation:

To find the equation of this line, we first need to find the slope. To do that, we use the slope equation.

m(slope) = (y2 - y1)/(x2 - x1)

m = (16 - 4)/(3 - -1)

m = (16 - 4)/(3 + 1)

m = 12/4

m = 3

Now that we have the slope, we can use it and either point in point-slope form.

y - y1 = m(x - x1)

y - 16 = 3(x - 3)


3 0
4 years ago
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