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3 years ago

C2>a2+b2 is it a obtuse right or acute

Mathematics

1 answer:

Alex Ar [27]3 years ago

7 0

Answer:

obtuse

Step-by-step explanation:

When c, the hypotenuse, is greater than the legs (a and b), it's an obtuse triangle

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What is the probability of rolling a four then a three

spayn [35]

Answer:

$\frac{1}{36}$

Step-by-step explanation:

Total possibilities when we a roll a die at a time are 6

given we should have four for first time and then three

let us assume we rolled the dice we may get 1,2,3,4,5,6(any of these) the probability to get 4 is

PROBABILITY= $\frac{\textrm{FAVOURABLE CHANCES}}{\textrm{TOTAL CHANCES}}$

Favourable chances=1

Total chances=6

Probability= $\frac{1}{6}$

the prabability to get 4 in first roll is $\frac{1}{6}$ .

let us assume we rolled the dice for second time again we may get 1,2,3,4,5,6(any of these) the probability to get 3 is

Favourable chances=1

total chances=6

probability= $\frac{1}{6}$

the probability to get 3 in second roll irrespective of first one is $\frac{1}{6}$

the probability to get 4 in first time and then 3 is

The probability to occur both events at a time is multiplication of individual probabilities

So,

probablility to get 4 in first roll= $\frac{1}{6}$

probability to get 3 in second roll= $\frac{1}{6}$

probability to occur both at a same time is = $\frac{1}{6}$ $\times$ $\frac{1}{6}$ = $\frac{1}{36}$

6 0

3 years ago

Diano4ka-milaya [45]

Part A) x cannot be 1 or 0, because that would lead do division by 0. If x=1, 1-1=0. If x=0, then we have straight division by 0.

Part B) x=2 or x=1.

Together they could clean the house in 3.75 hours.

Explanation:

Part A is explained with the answer.
Part B)
$\frac{1}{x-1}+\frac{2}{x}=\frac{x}{x-1}$
We will first multiply each term by (x-1) to cancel those denominators:
$\frac{1}{x-1} \times \frac{x-1}{1}+\frac{2}{x} \times \frac{x-1}{1}=\frac{x}{x-1} \times \frac{x-1}{1}
\\
\\ \frac{x-1}{x-1}+\frac{2(x-1)}{x}=\frac{x(x-1)}{x-1}
\\
\\ 1+\frac{2(x-1)}{x}=x$

Now we multiply everything by x to cancel that denominator:
$1(x)+\frac{2(x-1)(x)}{x}=x(x)
\\
\\x+2(x-1)=x^2
\\
\\x+2*x-2*1=x^2
\\x+2x-2=x^2
\\3x-2=x^2$

We want all of the variables to be on the same side of the equation, so subtract 3x from both sides:
3x-2-3x=x²-3x
-2=x²-3x

To solve quadratics, we set them equal to 0. Add 2 to both sides to make this happen:
-2+2=x²-3x+2
0=x²-3x+2

To solve this by factoring, we want factors of 2 that sum to -3. -2(-1)=2 and -2+-1=-3:
0=(x-2)(x-1)

The zero product property tells us that either x-2=0 or x-1=0; therefore x=2 or x=1.

Max cleans 1/10 of the house in an hour, since it takes him 10 hours to clean the whole house. Maggie cleans 1/6 of the house in an hour, since it takes her 6 hours to clean the whole house. Our equation is then:

1/10x+1/6x=1 (one whole, since it is one house; x is the number of hours)

Find a common denominator. 60 is the first thing that 10 and 6 both evenly divide into:
6/60x+10/60x=1
16/60x = 1

Divide both sides by 16/60:

16/60x ÷ 16/60 = 1 ÷ 16/60
x = 1/1 ÷ 16/60
x = 1/1 ×60/16
x = 60/16 = 3.75.

5 0

3 years ago

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March 21, the 80th day of the year, is the spring equinox. find the number of hours of daylight in fairbanks on this day

pentagon [3]

According to a daylight calculator for Fairbanks, AK, sun rises at 07:40 and sun sets at 20:12, giving 12 hours and 32 minutes of daylight.

Note that it is not a mistake that daylight is not exactly 12 hours on that day due to refraction of the sun's rays at sunrise and sunset.

At Fairbanks, near equality to 12 hours occurs on March 16 with sunrise at 07:58 and sunset at 19:57.

3 0

3 years ago

When you have a 40-hour mindset about studying, you A. put in most of your 40 hours through the week so that you have your wee

hram777 [196]

I think the answer is A. You put in most of your 40 hours through the week so that you have your weekends free. Usually, you will spend 8 hours a day, 5 times a week for studying so that you can spend your weekend to work, play, family or any other activities that do not involve studying. Also, this may avoid procrastination for some students.

7 0

3 years ago

Factor 8m^6 - 64n^12p^15.<br>Pls only answer if u know what to do, don't waste my points

Stells [14]

Use photomath LOLLLLLLLL

6 0

3 years ago

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