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3 years ago

Could someone help me??

Mathematics

2 answers:

Irina-Kira [14]3 years ago

7 0

-1 because 6-5=1 and x takes 5 spaces while there’s 6 1’s

Y_Kistochka [10]3 years ago

5 0

Answer:

It's J my child

Step-by-step explanation:

-1 + -1 + -1 + -1 + -1 = -5

-5 - (6) = 1

(The six is from the 6 square blocks that says 1 on it)

(I put the parenthesis on the 6 so you know that it's a positive number and so you won't get messed up from the subtraction sign)

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A company says that the probability of finding an all-star card in a game pack is 12.5%. A student wants to determine the probab

Blababa [14]

Answer:

The estimated probability is about:

0.1333=13.33%

Step-by-step explanation:

It is given that:

The probability of finding an all-star card in a game pack is 12.5%.

A student wants to determine the probability that, if he buys 6 game packs, 2 or more will have an all-star card.

He uses a random number table to pick 6 numbers from 1 to 8.

He lets 1 represent a pack with an all-star card and 2 through 8 represent a pack without an all-star card.

The results of 15 trials are given as:

561673 366468 314255 361362 838443 126285 257231 768551 652585 468113 123711 322764 487626 783134 384664

So, the number of trials that have two or more 1 in it will represent the trial that 2 or more out of 6 packs will have an all-star card.

Number of trials that represent that 2 or more out of 6 packs have an all-star are:2

( Since, the trials are: 468113 and 123711 )

Hence, the estimated probability that 2 or more out of 6 have an all-star is:

2/15=0.13333=13.33%

7 0

3 years ago

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Luke is doing a Science Fair project. He observes that the cells double every 6 hours. If he starts with 50 cells, how many will

iogann1982 [59]

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3 years ago

$2.00 US Dollars can be exchanged for 1.25 English pounds. How many US dollars will it take to obtain 10.00 in English pounds?

ANTONII [103]

Answer:

$16.00 US dollars

Step-by-step explanation:

10 / 1.25 [English Pounds] = 8

therefore you need to do;

$2.00 * 8 = $16.00

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2 years ago

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A habitat of prairie dogs can support mmm dogs at most.

Sloan [31]

Answer:

The correct answer is p = K × x × (m - p) , where K is the constant of proportionality and x is the current population of the habitat.

Step-by-step explanation:

A habitat of prairie dogs can support m dogs at most.

Let us consider the current population of the habitat be x.

Given the condition that the habitat's population, p, grows proportionally to the product of the current population (x) and the difference between m and p.

Thus the proportional equation would look like:

p ∝ x × (m - p)

⇒ p = K × x × (m - p) , where K is the constant of proportionality.

Thus the equation describing the above mentioned relationship is given by the above equation.

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3 years ago

A baseball is thrown in a parabolic arc. It's position above the ground at a given point in time

FinnZ [79.3K]

If the ball was thrown straight up at 24 ft/sec when it was 5 ft above the ground, the ball reached a maximum height of 7.25 m

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<h3>Further explanation</h3>

Discriminant of quadratic equation ( ax² + bx + c = 0 ) could be calculated by using :

From the value of Discriminant , we know how many solutions the equation has by condition :

D < 0 → No Real Roots

D = 0 → One Real Root

D > 0 → Two Real Roots

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An axis of symmetry of quadratic equation y = ax² + bx + c is :

$\large {\boxed {x = \frac{-b}{2a} } }$

Let us now tackle the problem!

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<u>Given:</u>

$p(t) = 3gt^2 + v_ot + p_o$

$p(t) = 3(-32)t^2 + 24t + 5$

$p(t) = -64t^2 + 24t + 5$

<u>Asked:</u>

$p_{max} = ?$

<u>Solution:</u>

<em>At the maximum height , velocity is 0 m/s:</em>

$v = \frac{dp(t)}{dt}$

$v = \frac{d}{dt} ( -64t^2 + 24t + 5 )$

$v = (-64)(2)t^{2-1} + 24$

$v = -128t + 24$

$0 = -128t + 24$

$128t = 24$

$t = 24 \div 128$

$t = 3 \div 16$

$t = 0.1875 \texttt{ s}$

$\texttt{ }$

$p(t) = -64t^2 + 24t + 5$

$p(0.1875) = -64(0.1875)^2 + 24(0.1875) + 5$

$p(0.1875) = 7.25 \texttt{ m}$

$\texttt{ }$

<h3>Learn more</h3>

Solving Quadratic Equations by Factoring : brainly.com/question/12182022
Determine the Discriminant : brainly.com/question/4600943
Formula of Quadratic Equations : brainly.com/question/3776858

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<h3>Answer details</h3>

Grade: High School

Subject: Mathematics

Chapter: Quadratic Equations

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Keywords: Quadratic , Equation , Discriminant , Real , Number

#LearnWithBrainly

3 0

3 years ago

Read 2 more answers