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3 years ago

Helpppp pleaseeeee

Mathematics

2 answers:

Anna11 [10]3 years ago

5 0

Answer:

Here is the answer.

lutik1710 [3]3 years ago

4 0

Play Football Don't Play Football Total
Play Baseball 5 22 27

Don't Play baseball 11 20 31

Total 16 42 58

The bolded numbers are the ones that were given in the question. I got the other figures by subtracting as necessary (wherever I could find 2 already filled in figures).

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A rectangular standing-only section at the venue changes size as t increases in order to manage the flow of people. Let x repres

Cloud [144]

Answer: $3(2y-1)$

Step-by-step explanation:

Given

Length is increasing at the rate of $\dot{x}=6\ ft/s$

Width is decreasing at the rate of $\dot{y}=3\ ft/hr$

Area is given by

$A=xy$

So rate of area is

$\frac{dA}{dt}=x\frac{dy}{dt}+y\frac{dx}{dt}$

$\frac{dA}{dt}=x\times (-3)+y\times (6)$

$\frac{dA}{dt}=6y-3x$

$\frac{dA}{dt}=3(2y-1)$

So, area is changing at the rate of $3(2y-1)$

8 0

4 years ago

Lim x->1+( sin(1-x)-(e^(x-1))+1)/ lnx

BigorU [14]

We're given the one-sided limit,

$\displaystyle\lim_{x\to1^+}\frac{\sin(1-x)-e^{x-1}+1}{\ln(x)}$

Evaluating the limand directly at <em>x</em> = 1 gives the indeterminate from

(sin(1 - 1) - exp(1 - 1) + 1) / ln(1) = 0/0

so we can potentially solve the limit by applying L'Hopital's rule. Doing so gives

$\displaystyle\lim_{x\to1^+}\frac{\sin(1-x)-e^{x-1}+1}{\ln(x)}=\lim_{x\to1^+}\frac{-\cos(1-x)-e^{x-1}}{\frac1x}=\frac{-\cos(0)-e^0}{\frac11}=\boxed{-2}$

8 0

3 years ago

if the population of a certain city increased by 25% in two years, the new population was what percent of the old?

lesantik [10]

Answer:

125%

Step-by-step explanation:

The old population was 100% of the old population since 100% means a whole amount.

Since the population increased by 25%, the new population is 125% of the old population.

8 0

3 years ago

Matthew and his brother brought 500 game cards. They decided they were going to spilt the cards up between the two of them. How

mars1129 [50]

Answer:

250

Step-by-step explanation:

5 0

4 years ago

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What methods do you know that can be used to solve a quadratic equation?

zhuklara [117]

Answer: If the quadratic equation has real, rational solutions, the quickest way to solve it is often to factorise into the form (px + q)(mx + n), where m, n, p and q are integers. This is especially true where the coefficient of x2 is 1.

Example 1 - Solve x2+7x+12=0

Step-by-step explanation:

that's the only one I remember

8 0

3 years ago

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