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3 years ago

Select the correct answer.

Mathematics

1 answer:

navik [9.2K]3 years ago

8 0

Answer:

b, its the logical answer

Step-by-step explanation:

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Will award 40 points if you answer correctly

IceJOKER [234]

see picture for the graph

equation: y = 1.50x

3 0

3 years ago

Read 2 more answers

Fastest answer gets brainlyest!

LUCKY_DIMON [66]

Answer:

(3)4

Step-by-step explanation:

3 x 3 x 3 x 3 can also be written as (3)4 or 3 to the 4th power

5 0

3 years ago

A colony contains 1000 Bacteria. The population increases at a rate of 115% each hour. If X represents the number of hours elaps

Irina18 [472]

Answer:

b(x) = 1,000 * 2.15^x

Step-by-step explanation:

1,000 represents the intial colony size. An increase of 115% correlates to multiplying the said size by 2.15 to the power of the hours elapsed.

Common error: The factor is 2.15 and not 1.15 as an increase of 100% is doubling the amount. i.e. if the increase was 15%, we would multiply by 1.15.

8 0

3 years ago

What is the explicit formula for the sequence: 18, 11, 4, -3?

kumpel [21]

Answer:

Step-by-step explanation:

c.d. d=11-18=4-11=-7

y=18+(n-1)(-7)

or y=18-7n+7

or y=25-7n

n=1,2,3, ...

7 0

3 years ago

Geometry:(<br><br> will give brainist to correct answer:)

Lorico [155]

Given:

End points a line segment are (9,-8) and (-1,-4).

To find:

The equation of perpendicular bisector of given line.

Solution:

Slope of given line is

$m=\dfrac{y_2-y_1}{x_2-x_1}$

$m_1=\dfrac{-4-(-8)}{-1-9}$

$m_1=\dfrac{-4+8}{-10}$

$m_1=\dfrac{4}{-10}$

$m_1=-\dfrac{2}{5}$

Product of slopes of two perpendicular line is -1.

$m_1\times m_2=-1$

$(-\dfrac{2}{5})\times m_2=-1$

$m_2=\dfrac{5}{2}$

So, slope of perpendicular bisector is $\dfrac{5}{2}$ .

Perpendicular bisector passes through the midpoint of given endpoints.

$Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)$

$Midpoint=\left(\dfrac{9+(-1)}{2},\dfrac{(-8)+(-4)}{2}\right)$

$Midpoint=\left(\dfrac{8}{2},\dfrac{-12}{2}\right)$

$Midpoint=\left(4,-6\right)$

So, perpendicular bisector passes through (4,-6) and having slope $\dfrac{5}{2}$ . The equation of perpendicular bisector is

$y-y_1=m(x-x_1)$

where, m is slope.

$y-(-6)=\dfrac{5}{2}(x-4)$

$y+6=\dfrac{5}{2}(x)+\dfrac{5}{2}(-4)$

$y+6=\dfrac{5}{2}x-10$

$y=\dfrac{5}{2}x-10-6$

$y=\dfrac{5}{2}x-16$

Therefore, the equation of perpendicular bisector is $y=\dfrac{5}{2}x-16$ .

7 0

3 years ago