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3 years ago

HELP QUICK PLEASE WILL MARK BRAINLIEST!!

Mathematics

1 answer:

ikadub [295]3 years ago

7 0

Answer:

y = 1/2x - 3

Step-by-step explanation:

Slope = -2

Slope of the perpendicular line: 1/2

b = -2 - (1/2)(2)

b = -3

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PLEASE HELP!!!

Vilka [71]

You add 42 and 16 and then u have 58 dollars/$58

8 0

3 years ago

Read 2 more answers

Which number is greater than 7.23 and less than 7.55? 7.59;7.17;7.6;7.3

Step2247 [10]

7.3 also written as 7.30

5 0

3 years ago

Help with this pleaseee

Savatey [412]

Answer:

Sum of 100 terms of the sequence = 15050

Step-by-step explanation:

Given expression which represents a sequence is,

$\sum_{r=1}^{100}(3r-1)$

So the sequence will be,

2, 5, 8, 11, 14..........

So, the given sequence is an arithmetic sequence with,

First term of the sequence 'a' = 2

Common difference 'd' = 5 - 2 = 3

Sum of 'n' terms of an arithmetic sequence is given by,

$S_n=\frac{n}{2}[2a+(n-1)d]$

Here, n = number of terms

a = first term

d = common difference

$S_{100}$ = $\frac{100}{2}[2(2)+(100-1)(3)]$

= 50[4 + 297]

= 15050

Therefore, sum of 100 terms of the sequence = 15050

3 0

3 years ago

5 squirrels were found to have an average weight of 8.9 ounces with a sample standard deviation is 0.9. Find the 95% confidence

stira [4]

Answer: ( 8.11 , 9.69)

the 95% confidence interval of the true mean weight

= ( 8.11 , 9.69)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 8.9

Standard deviation r = 0.9

Number of samples n = 5

Confidence interval = 95%

z(at 95% confidence) = 1.96

Substituting the values we have;

8.9+/-1.96(0.9/√5)

8.9+/-1.96(0.4025)

8.9+/- 0.79

= ( 8.11 , 9.69)

Therefore at 95% confidence interval (a,b) = ( 8.11 , 9.69)

7 0

3 years ago

Option 2:<br><br> Find m < C. Show all work.

maksim [4K]

Answer:

m∠C = 28.1°

Explanation:

angle m∠C has opposite angle of 16 and hypotenuse of 34

using sine rule:

$\boxed{ sin(C) = \frac{opposite}{hypotenuse}}$

$sin(C)=\frac{16}{34}$

$C = sin^{-1}(\frac{16}{34} )$

C = 28.07248°

C = 28.1°

5 0

3 years ago

Read 2 more answers