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2 years ago

Problem example: For the given sequence: -2,2,6,10,14,18

Mathematics

1 answer:

Kobotan [32]2 years ago

7 0

Answer:

250

Step-by-step explanation:

You can take the explicit formula and simply substitute the n value with 64:

-2 + 4 * (64 - 1)

-2 + 4 * (63)

-2 + 252

250

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If 12 less than 4 times a number is 8, the number is 5. Write a different sentance where the unknown number is also 5.

anastassius [24]

Two times a number minus 4 is six. (2*5-4=6)

7 0

4 years ago

Read 2 more answers

A batter strikes a baseball. the equation y = -0.005^2 +0.7x + 3.5 models its path, where x is the horizontal distance, in feet,

hram777 [196]

Answer:

(D)144.8 feet

Step-by-step explanation:

Given the equation which models the path of the baseball

$y = -0.005x^2 +0.7x + 3.5$

where x is the horizontal distance, in feet, the ball travels and y is the height, in feet, of the ball.

To determine how far from the batter the ball will land, we determine the distance x at which the height, y=0.

$y = -0.005x^2 +0.7x + 3.5=0$

$-0.005x^2 +0.7x + 3.5=0$

We use the quadratic formula to solve.

In the quadratic equation above, a=-0.005, b=0.7, c=3.5

$x=\dfrac{-b\pm\sqrt{b^2-4ac} }{2a} \\=\dfrac{-0.7\pm\sqrt{0.7^2-4(-0.005*3.5)} }{2*-0.005} \\=\dfrac{-0.7\pm\sqrt{0.49+0.07} }{-0.01}\\=\dfrac{-0.7\pm\sqrt{0.56} }{-0.01}\\x=\dfrac{-0.7+\sqrt{0.56} }{-0.01} \: or\: x=\dfrac{-0.7-\sqrt{0.56} }{-0.01}\\x=-4.83 \: or\: x=144.83$

Since x cannot be negative, x=144.8 feet to the nearest tenth of a foot.

The correct option is D.

6 0

3 years ago

Kyla is hiking. She comes to this marker at a fork in the trail. Which of these gives the same distance to Cascade Falls?

gogolik [260]

Answer:

3.5 miles

Step-by-step explanation:

The actual choices and question is as attached. Since it's shown in a mixed fraction as $3\frac{1}{2}$ then we convert the number to decimal. \frac {1}{2} will be 1 divided by 2 which is 0.5 hence the distance to Cascade Falls is 3.5 miles

4 0

3 years ago

Will mark brainliest, most likely last one sorry.

Neko [114]

Answer:

Step-by-step explanation:

Rational numbers Irrational numbers

3√25 5.15603418923......

-11/151 √141

____

1.1625

√256

Irrational numbers are numbers that doesn't terminate and doesn't repeat.

Rational numbers are numbers that can be written in p/q form

6 0

3 years ago

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Juli2301 [7.4K]

Answer:

QPN and TSU

Step-by-step explanation:

They're both exterior angles and they are both alternate to each other.

4 0

3 years ago