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3 years ago

How do i solve for this?

Mathematics

1 answer:

dem82 [27]3 years ago

4 0

Answer:

Step-by-step explanation:

So you know the coords for the angle which is (1, 4).

Another coord might be (2, 5) or (0,3)

So we can find the slope

rise/run=1/1

so m=1

Sub in coords like (1,4) to find y-int

y=mx+b

4=1(1)+b

b=3

Thus y=x+3

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In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-s

Bond [772]

Answer:

95.44%

Step-by-step explanation:

Mean (m) = 48

Standard deviation (sd) = 9

n = 12

Zscore = (x - m) /sd

X = 30

Zscore = (30 - 48) / 9

Zscore = - 2

X = 66

Zscore = (66 - 48) / 9

Zscore = 2

percentage of daily phone calls numbering between 30 and 66 = P(z < 2) - p(z < - 2)

P(z < 2) = 0.9772

P(z < - 2) = 0.0228

Hence,

0.9772 - 0.0228 = 0.9544

0.9544 * 100% = 95.44

4 0

4 years ago

A hippopotamus's typical growth rate is typically 50.5% per year when considering it's weight in pounds from birth to maturity.

VARVARA [1.3K]

Answer:

9.3 years

Step-by-step explanation:

we know that

The equation of a exponential growth is equal to

$y=a(1+r)^x$

where

y is the weight in pounds

x is the number of years

a is the initial value or y-intercept

we have

$a=70\ lb\\r=50.5\%=50.5\100=0.505$

substitute

$y=70(1+0.505)^x$

$y=70(1.505)^x$

For y=3,100 lb

substitute in the equation

$3,100=70(1.505)^x$

solve for x

$\frac{310}{7} =(1.505)^x$

apply log both sides

$log(\frac{310}{7}) =log[(1.505)^x]$

$log(\frac{310}{7}) =(x)log(1.505)$

$x=log(\frac{310}{7})/log(1.505)=9.3\ years$

6 0

3 years ago

Draw a balanced hanger diagram for the equation 2x=4

Pepsi [2]

Step-by-step explanation:

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8 0

3 years ago

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Is it possible to draw a triangle with these measurements?<br> • Side lengths 2 cm, 3 cm, and 4 cm

ryzh [129]

Answer:

Yes

Step-by-step explanation:

To form a triangle, any 2 of the side lengths added together must be greater than the 3rd side. In this case 2cm + 3cm = 5cm which is greater than 4cm (the remaining side)

3 0

3 years ago

Please help with this problem

Ulleksa [173]

The relationship between two variables is called their correlation. The closer the data points come when plotted to making a straight line, the higher the correlation between the two variables, or the stronger the relationship.

Also,
A scatter plot shows a positive trend if y tends to increase as x increases. A scatter plot shows a negative trend if y tends to decrease as x increases. A scatter plot shows no trend if there is no obvious pattern.

Hope this helps!

6 0

3 years ago

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