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Ulleksa [173]
2 years ago
11

This is not a quiz it is an assignment that is due tomorrow and I Wil be grateful for anyhelp​

Mathematics
1 answer:
ladessa [460]2 years ago
7 0
Xy - x - y + 1

explanation: distribute (x-1)(y-1) —> x(y-1) - 1 (y-1) —> xy - x - 1(y-1) —> xy - x - y + 1
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List three exampls of a rate
Tamiku [17]

Answer:

Step-by-step explanation:

It is a special type of ratio

EXAMPLE:

12 ounce can of corn costs $.69 the rate would be $.69 for 12 ounces would be .69:12

6 0
3 years ago
What is the radius<br> and diameter
kotegsom [21]
Diameter- Is two times the radius. Circumference is the distance around the edge of the circle.

Radius- A line from the center of a circle to a point on the circle.

Hope this helped.
7 0
3 years ago
Read 2 more answers
Anyone solve this pls
Bingel [31]
X = -3.5 or -7/2 or -3 1/2
8 0
2 years ago
Read 2 more answers
A poll agency reports that 75% of teenagers aged 12-17 own smartphones. A random sample of 234 teenagers is drawn. Round your an
GalinKa [24]

Answer:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

X \sim Binom(n=234, p=0.75)

And the mean for this case would be:

E(X) =np = 234*0.75= 175.5

And the standard deviation would be given by:

\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624

Step-by-step explanation:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

X \sim Binom(n=234, p=0.75)

And the mean for this case would be:

E(X) =np = 234*0.75= 175.5

And the standard deviation would be given by:

\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624

3 0
3 years ago
-8x = 140<br><br> Solve for x
Alekssandra [29.7K]

Answer:

<h2><em><u>x = -17.5</u></em></h2>

Explanation:

-8x = 140

  • Divide both sides by -8

-8x / -8 = 140 / -8

x = ⁻³⁵⁄₂

  • Simplify

x = -17.5

6 0
3 years ago
Read 2 more answers
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