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1 year ago

What is a possible value for the missing term of the geometric sequence? 43, ___, 688, ...

Mathematics

1 answer:

Ostrovityanka [42]1 year ago

4 0

Answer:

172

Step-by-step explanation:

The formula for the missing term of a geometric sequence is the square root of x times y.

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What is the factored form of 9X^2-64

Maksim231197 [3]

This should be recognized as the difference of perfect squares which is of the form:

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(a-b)(a+b) in this case:

(3x-8)(3x+8)

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2 years ago

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2 years ago

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Point W has coordinates (4, -7). If it is reflected over the y -axis, what are the coordinates of its image?

Korolek [52]

Answer:

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Step-by-step explanation:

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1 year ago

Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon

Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

we have

$h(t)=-16t^2+40t+5$

we know that

When the ball hits the ground, the height is equal to zero

$-16t^2+40t+5=0$

The formula to solve a quadratic equation of the form

$at^{2} +bt+c=0$

is equal to

$t=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-16t^2+40t+5=0$

$a=-16\\b=40\\c=5$

substitute in the formula

$t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}$

$t=\frac{-40\pm\sqrt{1,920}} {-32}$

$t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec$

$t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec$

therefore

The solution is t=2.62 seconds

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2 years ago

Factorise this : 2p²-p-10

gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

p(2p-1)-10

8 0

2 years ago