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1 year ago

Which of the following expressions are equivalent to - -13/12

Mathematics

1 answer:

RUDIKE [14]1 year ago

6 0

If is -(-13/12) then A. -13/-12

If is -13/12 then B. 13/-12

$-\dfrac{-13}{12}=\dfrac{-13}{-12}=\dfrac{13}{12}\\\\\dfrac{-13}{12}=-\dfrac{13}{12}=\dfrac{13}{-12}$

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Ede4ka [16]

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3 years ago

Please help.

serious [3.7K]

The number of throws that the player make X follows binomial distribution.

The probability that the player makes x throws out of eleven throws is

$P(X=x)=C(x,11)0.5^x(0.5)^{11-x}=C(x,11)0.5^{11}$

The probability that the player makes at most nine out of eleven free throws

$\sum_{x=0}^9C(x,11)0.5^{11}=1-\sum_{x=10}^{11}C(x,11)0.5^{11}\\ =1-C(10,11)0.5^{11}-C(11,11)0.5^{11}=1-\frac{12}{2^{11}} \\ =1-\frac{3}{512} =\frac{509}{512}$

Correct choice is (B).

8 0

3 years ago

You are an urban planner assessing the growth of a city. Ten years ago, the city's population was 250,823. Its current populatio

Tanzania [10]

Answer:

I just answered it

Step-by-step explanation:

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3 years ago

Please help me by marking the correct answer to each part of number 9. I really dont get this at all, so please tell me why your

natta225 [31]

A. False
Why? Because you cut off the triangle. The measurements are 20 mm and 10 mm.
B. True
Why? Because 20*10 = 200
C. False
Why? Because the base is 6 since 26 - 20 is 6. The height is 4, not 6 because 10 - 6 is 4.
D. True
Why? Because like question C., the base is 6, and the height is 4. 6*4 is 24/2 = 12. If you don't get this, the formula for all triangles is b*h*1/2
E. True
Why? Because from questions B. and D., the area of the rectangle is 200 and the area of the triangle is 12. 200 + 12 = 210.

Hope this helped,
Loafly

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3 years ago

Two 120 resistors are connected in parallel across voltage supply of 10 vdc what’s the current in this circuit

Daniel [21]

Answer: 0.167

Step-by-step explanation:

This is an applied mathematics question

Resistors in parallel ⁾/R = ¹/₁₂₀ + ¹/₁₂₀ since the resistor is two 120

Therefore , resolve into fraction now yield

¹/R = 1 + 1

-------

120

= 2/120

= ¹/₆₀

Therefore, ¹/R = ¹/₆₀

Cross multiply to get R the resistance

R = 60

From formula, V = IR where I is the current

There fore making I the subject of the formula

I = V/R

= 10/60

= 0.166

= 0.167 A, A = ampere which is the unit of current.

4 0

3 years ago