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3 years ago

Please help me answer these questions!

Mathematics

2 answers:

FromTheMoon [43]3 years ago

5 0

I'm pretty sure the answer is 259

Alex Ar [27]3 years ago

3 0

The first term is 6^0 = 1. The common ratio r is 6. There are 4 terms in the series.

Using the formula for sum of geometric series S = a(1-r^n)/(1-r),

S = (1-6^4)/(1-6) = 259

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What is the equation of the line that passes through (-9,12) and is perpendicular to the line whose equation is y=1/3x 6?

tigry1 [53]

Y = 1/3x ? 6....slope here is 1/3. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So our perpendicular line will have a slope of -3 (see how I flipped 1/3 and changed the sign)

y = mx + b
slope(m) = -3
(-9,12)...x = -9 and y = 12
now we sub and find b, the y int
12 = -3(-9) + b
12 = 27 + b
12 - 27 = b
-15 = b

so ur perpendicular equation is : y = -3x - 15

6 0

3 years ago

The mode is the

taurus [48]

Answer:

most common, 4, c, 9

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

An insurance company has provided you with a sample of paid claims. The sample includes the following claims: 192, 113, 200, 287

Gennadij [26K]

The required value of mean and variance is 203 and 3942 respectively.
Hence option B is correct.

The sample includes the following claims: 192, 113, 200, 287, and 225.

<h3>What is Statistic?</h3>

The statistic is the study of mathematics which deal with relations between comprehensive data.

Mean(x) = 192+113+200+287+225/5
x = 203

variance = $\frac{\sum(x-x_i)^2}{n^2-1}$

=summation of squared value/n^2−1

=15769/25−1

=15769/24

=3942

Thus, the required value of mean and variance is 203 and 3942 respectively.

Learn more about Statistics here:

brainly.com/question/23091366

#SPJ128000544

8 0

2 years ago

8x - 3(5 + 9x what's the simplified algebraic expression p

Mashcka [7]

=8x + (-3) (5) + (-3) (9x)

=8x + -15 + -27x

(8x + -27x) + (-15)

19x +-15

19x -15

4 0

3 years ago

Write a word phrase for and algebraic expression 3x+10

exis [7]

Three multiplied by a number plus ten.

8 0

3 years ago