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Rasek [7]
3 years ago
13

HELP I NEED HELP ASAP A. D=55+9m B. D=43+10m C. M=55+10d D. M=43+10d

Mathematics
1 answer:
MissTica3 years ago
5 0

Answer:

c or d

Step-by-step explanation:

not sure witch

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What is the common difference of an AP which has its first term as 100 and the sum of its first 6 terms = 5 times the sum of its
Inga [223]

Answer:

The common difference of given AP is Option 2) -10.

Step-by-step explanation:

We are given the following information in the question:

First term of AP, a  = 100

The sum of its first 6 terms = 5(the sum of its next six terms)

We have to find the common difference of AP.

The sum of n terms of AP is given by:

S_n = \dfrac{n}{2}\big(2a + (n-1)d\big)

where a is the first term and d is the common difference.

Thus, we can write:

S_6 = 5 (S_{12}-S_6)\\\dfrac{6}{2}\big(200 + (6-1)d\big) = 5\bigg(\dfrac{12}{2}\big(200 + (12-1)d\big)-\dfrac{6}{2}\big(200 + (6-1)d\big)\bigg)\\\\600 + 15d =5(1200+66d-600-15d)\\600+15d=3000+255d\\2400 = -240d\\d = -10

Thus, the common difference of given AP is -10.

7 0
3 years ago
The distance of planet Jupiter from the Sun is approximately 7.8 ⋅ 108 kilometers, and the distance of planet Saturn from the Su
Y_Kistochka [10]
<h2>Option C is the correct answer,</h2>

Step-by-step explanation:

The distance of planet Jupiter from the Sun is approximately 7.8 x 10⁸ kilometers.

Distance from Jupiter to Sun = 7.8 x 10⁸ kilometers

The distance of planet Saturn from the Sun is 1.5 x 10⁹ kilometers.

Distance from Saturn to Sun = 1.5 x 10⁹ kilometers

Difference in distances = 1.5 x 10⁹ - 7.8 x 10⁸ = 15 x 10⁸ - 7.8 x 10⁸

Difference in distances = 7.2 x 10⁸ kilometers

Option C is the correct answer,

7 0
3 years ago
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Need help with trig!
dedylja [7]

Answer:

1. A. 4.42

2. F. 20.9

3. G. 4.57

4. A. 4.50

Step-by-step explanation:

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3 years ago
Does anybody know how to do this and explain it to me clearly plz and thx <br><br><br> - 1/2 x = 6
Usimov [2.4K]
1) first you multiply each side by -2
1a) that clears the -1/2
x = -12
3 0
4 years ago
Ill mark brainpower!!
Orlov [11]

Answer:

......................

................

6 0
3 years ago
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