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marissa [1.9K]
2 years ago
10

Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.

Mathematics
2 answers:
Veseljchak [2.6K]2 years ago
8 0

Answer:

5/6

Step-by-step explanation:

Slope equals y 2 minus y 1 divided by x 2 minus x1

1-(-4)/4-(-2)

5/6

adoni [48]2 years ago
8 0

It 5/6 hope it helps you
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I don’t know if it’s A or B
lara31 [8.8K]

Answer:

A

Step-by-step explanation:

this is true due to the ratio of a 30-60-90 triangle, which is 1-2-sqrt(3). The 12 corresponds to the sqrt(3), which means that the 1 corresponds to 4sqrt3 and the 2 to 8sqrt3.

:)

7 0
2 years ago
Read 2 more answers
The common ratio in a geometric series is 4 and the first term is 3.
kodGreya [7K]

Answer:

The sum of the first 8 terms in the series is 65535.

Step-by-step explanation:

We have,

The common ratio in a geometric series, r = 4

First term of GP is, a = 3

It is required to find the sum of the first 8 terms in the series. The sum of first n terms of a GP is given by :

S_n=\dfrac{a(r^n-1)}{r-1}, r>1

Here, n = 8

S_8=\dfrac{3\times ((4)^8-1)}{4-1}\\\\S_8=65535

So, the sum of the first 8 terms in the series is 65535.

3 0
2 years ago
One number is five more than three times another. If their difference is 35, what is the larger number?
miv72 [106K]
Let x and y be the two unknown numbers. If one number, say x,is 5 more than 3 times another, say y, the equation would be

x = 5 + 3y

When their difference is 35, x-y = 35, since x is the much larger number here. We substitute x to solve for the smaller number, y.

x - y = 35
(5 + 3y) -y = 35
5 +2y = 35
2y = 35-5
2y = 30
y = 15

The larger number x would be
x = 5 + 3(15)
x = 50

The answer is 50.


8 0
2 years ago
Read 2 more answers
The following table shows the salary of 7 people in an office last year.
Andreas93 [3]

Answer:

a. Mean = £27928.57

b. Mean without Deva's income = £19416.67

Step-by-step explanation:

The mean is calculated by dividing the sum of values by number of values. Given 7 values will be used to calculate mean.

So,

Number of values = n = 7

Now,

Mean = \frac{Sum}{No.\ of\ values}\\=\frac{13500+27500+13750+79000+19250+27500+15000}{7}\\=\frac{195500}{7}\\=27928.5714..

Rounding off to two decimal places

Mean income = £27928.57

Now we have to calculate mean without Deva's income so the number of values will be 6 and the sum will be:

Sum = 195500-79000 = 116500

The mean without Deva's income is:

Mean = \frac{116500}{6} = 19416.6666..

Rounding off to 2 DP

Mean = £19416.67

Hence,

a. Mean = £27928.57

b. Mean without Deva's income = £19416.67

7 0
2 years ago
X^2+x+2=0. Solve for x
soldi70 [24.7K]
Answer in screenshot :)

4 0
3 years ago
Read 2 more answers
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