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Murljashka [212]
3 years ago
11

Can I have these questions answered,

Mathematics
1 answer:
weeeeeb [17]3 years ago
3 0
1. 37.0952380952 or if rounded 38
2. 49.05 or if rounded 49.1 or 49
3. 2.84375 or if rounded 2.8 or 3
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Trying to finish this test at 3:30 am plz help
Angelina_Jolie [31]

Given:

The given sum is:

\sum _{k=4}^9(5k+3)

To find:

The expanded form and find the sum.

Solution:

We have,

\sum _{k=4}^9(5k+3)

The expanded form of given sum is:

\sum _{k=4}^9(5k+3)=(5(4)+3)+(5(5)+3)+(5(6)+3)+(5(7)+3)+(5(8)+3)+(5(9)+3)

\sum _{k=4}^9(5k+3)=(20+3)+(25+3)+(30+3)+(35+3)+(4+3)+(45+3)

\sum _{k=4}^9(5k+3)=23+28+33+38+43+48

\sum _{k=4}^9(5k+3)=213

Therefore, the correct option is C.

7 0
3 years ago
Point M is located at (-2,7). If point N is 10 units away from point M, how many possible cordinate pairs
natulia [17]

Answer:

2 possible coordinate pairs

N (8, 17) OR (-12, -3)

Step-by-step explanation:

The rule:

(x, y) => (x + 10, y + 10) OR (x - 10, y -10)

(-2 + 10, 7 + 10) OR (-2 - 10, 7 -10)

(8, 17) OR (-12, -3)

Hope this helps!

6 0
2 years ago
Find the equation of the line.
Stells [14]

To find the equation of the line, we need to figure out the slope and y-intercept.

To find the y-intercept, look at the number where the line intersects the y-axis. The number is 5. The equation so far is y = ?x + 5.

We still didn't figure out the slope yet. To figure out the slope, pick two points. Use the rise over run method. It is in the image below. The line is going up to the left, so the slope will be negative. Now we know the slope is -1/3. The equation now that we figured out the slope is y = -1/3x + 5.

I hope this helps you! Let me know if I got something wrong.

4 0
2 years ago
Scientists are creating a material that may replace damaged cartilage in human joints. This hydrogel can stretch to 21 times its
Oduvanchick [21]

Answer:

c

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
CALC!! Please help me. For which pair of functions f(x) and g(x) below will the limit as x goes to infinity of the product of f
Marizza181 [45]
First limit:
\lim_{x\to\infty}(10x+e^{-x})*\frac{1}{5x}
=\lim_{x\to\infty}(2+\frac{1}{5xe^{x}})
=2+0
=2

Since we know that the first pair of functions does not approach 0, we do not have to check the others.
6 0
3 years ago
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