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3 years ago

It’s urgent please help

Mathematics

1 answer:

Inessa [10]3 years ago

5 0

Answer:

domain is always the x values and y values are the range of x.

It's option A

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If there are 15 oat and 12 blueberry muffins in one package, and 45 blueberries and 36 oats on another package. Are the ratios o

malfutka [58]

Answer:

yes there the same

Step-by-step explanation:

there the same because 15 oats to 12 blueberries simplified equals to 5:4

and 45 blueberries to 36 oats are simplified to lowest equals 5:4 and this makes them equivalent

3 0

3 years ago

Read 2 more answers

20 POINTS * A circle has a radius of 6. An arc in this circle has a central angle of 48°

storchak [24]

Answer:

$\frac{8\pi}{5}$

Step-by-step explanation:

Since this is a degree we going to use the arc length formula

$2\pi \times( r)( \frac{x}{360)}$

where x is the central angle measure and r is the radius.

The radius is 6 and the central angle is 48 so let plug that in the formula

$2\pi \times (6)( \frac{48}{360} )$

Multiply 2 pi by 6

$12\pi \times ( \frac{48}{360} )$

$12\pi \times \frac{4}{30}$

$\frac{12\pi}{1} \times \frac{4}{30} = \frac{48\pi}{30}$

$\frac{8\pi}{5}$

8 0

3 years ago

Can anyone help me ??

bazaltina [42]

(previously gave the won't answer, so decided to edit and remove it sorry)

3 0

3 years ago

Find functions f and g so that h(x) = (f ∘ g)(x). h(x) = (6x - 14)^8 A. f(x) = 6x - 14, g(x) = x^8 B. f(x) = 6x^8 - 14, g(x) = -

8090 [49]

Hello,

Answer C

Be carefull

A: is (gof)(x)=g(f(x))=g(x^8)=6x^8-14

C: fog(x)=f((g(x))=f(6x-14)=(6x-14)^8

7 0

3 years ago

The number of bacteria in a culture is increasing according to the law of exponential growth. The initial population is 240 bact

notsponge [240]

Answer:

339

Step-by-step explanation:

Exponential Function

General form of an exponential function: $y=ab^x$

where:

a is the initial value (y-intercept)
b is the base (growth/decay factor) in decimal form
x is the independent variable
y is the dependent variable

If b > 1 then it is an increasing function

If 0 < b < 1 then it is a decreasing function

Given information:

a = 240 (initial population of bacteria)
x = time (in hours)
y = population of bacteria

Therefore: $y=240b^x$

To find an expression for the population after 1 hour, substitute x = 1 into the found equation:

$\implies y=240b^1$

$\implies y=240b$

We are told that the population after 9 hours is double the population after 1 hour. Therefore, make y equal to twice the found expression for the population after 1 hour, let x = 9, then solve for b:

$\implies 2(240b)=240b^9$

$\implies 480b=240b^9$

$\implies 480=240b^8$

$\implies 2=b^8$

$\implies b=\sqrt[8]{2}$

$\implies b=2^{\frac{1}{8}}$

Therefore, the final exponential equation modelling the given scenario is:

$\implies y=240(2^{\frac{1}{8}})^x$

$\implies y=240(2)^{\frac{1}{8}x}$

To find how many bacteria there will be after 4 hours, substitute x = 4 into the found equation:

$\implies y=240(2)^{\frac{1}{8}(4)}$

$\implies y=240(2)^{\frac{1}{2}}$

$\implies y=339 \:\: \sf (nearest\:whole\:number)$

Therefore, there will be 339 bacteria (rounded to the nearest whole number) after 4 hours.

3 0

2 years ago