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yarga [219]
3 years ago
6

15 points!!! Help please

Mathematics
2 answers:
TiliK225 [7]3 years ago
5 0

Answer:

\frac{1}{5} + (\sqrt{7}  x \sqrt{10} )

Step-by-step explanation:

Both \sqrt{7} and  \sqrt{10} will give ± value but when it multiplies it always give a positive number.

Nonamiya [84]3 years ago
4 0

Answer:

Based on this screenshot, this is a Test. Do the test no your own, and if you're unsure what the answer is you can come back to it later or just pick random. If you get it correct or incorrect most tests like this will change their difficulty level to see what types of problems you can and cannot answer. This is so your teacher can see what you know about math and what you may need help learning about.

Step-by-step explanation:

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Find the sum of the first 47 terms of the following series, to the nearest integer.
Leokris [45]

Answer:

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ is 4,888

Step-by-step explanation:

The given series is;

12, 16, 20, ...,

Therefore, the first term of the series is, a = 12

The common difference of series is found as follows;

The difference between subsequent terms, 12 and 16 is  16 - 12 = 4

The difference between subsequent terms, 16, and 20 is  20 - 16 = 4

Therefore, the common difference, d = 4

The series is therefore an arithmetic projection, AP

The sum of the first 'n' terms of an AP, Sₙ, is given as follows;

S_n = \dfrac{n}{2} \cdot \left [2 \cdot a + (n - 1)\cdot d \right ]

(47/2)*(2*12+(47-1)*4)

The sum of the first 47 terms is therefore given as follows;

S_n = \dfrac{47}{2} \cdot \left [2 \times 12 + (47 - 1)\times 4 \right ] = 4,888

The sum of the first 47 terms of the series, 12, 16, 20, ... S₄₈ = 4,888

5 0
2 years ago
Find the midpoint of the line segment with the given endpoints<br> (-4,-6), (1,6)
maksim [4K]

Answer:

Step-by-step explanation:

(6,18)

5 0
3 years ago
URGENT!!!! WILL GIVE BRANLIEST !!! AT LEAST TAKE A LOOK!!!!!! Find cosP. A) COS=29/21 B) ) COS=21/29 C) ) COS=20/29
Rina8888 [55]

Answer:

C. cos 20/29

Step-by-step explanation:

Cosine is adjacent over hypotenuse, like SohCahToa. Therefore, 20 is the adjacent side and 29 is the hypotenuse (hypotenuse is always the longest side).

3 0
3 years ago
X^2+y^2≤ 4y, x^2+y^2≤4x
lisabon 2012 [21]

Answer:

0 what is the question man what

7 0
3 years ago
Help I have a lot to do
BaLLatris [955]
12)
(intro) Slope is change in y divided by change in x (axes). Here, the y axis is depth and the x axis is hours. So, the slope is change in depth between any two points, divided by the change in hours between the same points. The slope of this line is half a foot depth divided by 2 hours.
a) So, the slope is 0.5 / 2 = 0.25, or 1/4.
b) The graph shows a constant rate of change because the line is straight (it increases at the same speed. If the line was curving, it would not be a constant rate of change).
c) Yes, because the line has a constant rate of change now.
4 0
3 years ago
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