3 years ago

Help 7th grade math need fast please

Mathematics

1 answer:

Vika [28.1K]3 years ago

8 0

Answer:

It's 4800, just multiply 60x80 bc the population is 80x larger than the sample of 100

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The graph of f(x)=3•2^x -3 is shown below. G(x) is a transformation of f(x). How would you write the equation for the function g

Bezzdna [24]

Answer:

Step-by-step explanation:

To find the appropriate equation, notice the red graph has shifted up about 6 units. This means that $3*2^x-3$ which is shifted by -3 will move 6 up. -3+6= 3. This means the function will have +3. Only B and C are options. Now test a point. Notice the red function crosses the y-axis at about 5 or 6 when x=0.

$g(x) = 2^x+3\\g(0) = 2^0+3\\g(0)=1+3\\g(0)=4$

This function doesn't match.

$f(0) = 3*2^0+3\\f(0) = 3*1+3\\f(0)=6$

This function matches. Option C is correct.

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3 years ago

Find the least common denominator (LCD)11/6 and 4/9.

viva [34]

Answer: 18

Step-by-step explanation:

11/6 * 3/3 = 33/18

4/9 * 2/2 = 8/18

Hope this helps! Please give brainliest :)

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2 years ago

Jackson hikes 220.2 meters up a mountain. If he is 60% of the way up, how tall is the mountain?

xxTIMURxx [149]

367 meters tall
divide 220.2 by 0.6

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3 years ago

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Find the equation of the axis of symmetry and the coordinates of vertex of the functions =2x^2+4x-3

SVEN [57.7K]

Hello,

Find the equation of the axis of symmetry is like find the maximum or minimum point of this function.

$f(x)=2x^2+4x-3\\\\\alpha=-\dfrac{b}{2a}=-\dfrac{4}{4}=-1\\\\$

The equation of the axis of symmetry is then : $x=-1$

$\beta=f(\alpha)=2(-1)^2+4(-1)-3=2-4-3=-5$

Coordinates of vertex : $(\alpha,\beta)=(-1;-5)$

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3 years ago

The rectangular backboard of a basketball court needs to be assembled. Its area is given as 18,900 cm2 and the width as 1.8 m.

boyakko [2]

18900cm = 189m
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The blackboard's length in meters is 105m.

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3 years ago

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