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3 years ago

Which expression is equivalent

Mathematics

2 answers:

SCORPION-xisa [38]3 years ago

8 0

Hello from MrBillDoesMath!

Answer:

None of the provided answers is correct.

Discussion:

The correct answer is "none of the provided answers". The last term in 9x^2 - 2y + 3x^2 - 3y^2 is

None of the answers provided have a y^2 term! Check it out. Someone made a bo-bo and it wasn't MrBill!

Thank you,

MrB

almond37 [142]3 years ago

5 0

$Answer:10 {x}^{2} - 4y + 2 {x}^{2} - y$

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The end points of the diameter of a

SCORPION-xisa [38]

Find the diameter of circle using pythagoras
d = √(Δx² + Δy²)
d = √((7-1)² + (-6-2)²)
d = √(6² + (-8)²)
d = √100
d = 10
The diameter is 10

Find the circumference
c = π × d
c = 3.14 × 10
c = 31.4

5 0

3 years ago

I need help :( this problem is very confusing

Sladkaya [172]

Answer:

Emily , don't put your whole name in the questions :DDDD, it's at the top of the page, anyway, Eloper .. :DDD

Step-by-step explanation:

It's arithmetic b/c you're just adding 1

arithmetic

are the answers , the last one is b/c that's the common difference.

6 0

3 years ago

Read 2 more answers

Airline Fatalities One study showed that in a certain year, airline fatalities occur at the rate of 0.011 deaths per 100 million

Lelu [443]

Answer:

$P(X = 0) = 0.9891$

Step-by-step explanation:

Given

$\lambda = 0.011$

Required [This completes the question]

The probability of exactly 0 deaths

This probability follows a Poisson distribution, and it is given by:

$P(X = x) = \frac{e^{-\lambda}\lambda^{x}}{x!}$

For 0 deaths;

$x = 0$

So, the expression becomes

$P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{0!}$

$P(X = 0) = \frac{e^{-\lambda}\lambda^{0}}{1}$

$P(X = 0) = \frac{e^{-\lambda}*1}{1}$

$P(X = 0) = e^{-\lambda}$

Substitute 0.011 for $\lambda$

$P(X = 0) = e^{-0.011}$

$P(X = 0) = 0.9891$

<em>The probability of having exactly death is 0.9891</em>

8 0

3 years ago

Write an equation to describe this situation then solve it. Eight less than three times a number equals twenty-two

EastWind [94]

Answer:

The number is 10

Step-by-step explanation:

3x-8=22

3x=30

x=10

6 0

4 years ago

Two inches are cut off one side of a square board and three inches are added to an adjacent side. The resulting rectangle has a

devlian [24]

Answer: 53

Step-by-step explanation:

The original square had a dimension of x and x was reduced by 2 which means x-2 and 3 was added so the formula will be x-2+3=54 and to work that out you have to do it backwards.

54-3=51

51+2=53

So the original dimension was 53inches

8 0

3 years ago