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2 years ago

6

EASY MATH PLEASE HELP!! : )

2 answers:

Mademuasel [1]2 years ago

8 0

120

10 x 8 = 80

8 x 5 = 40

80 + 40 = 120

Oksanka [162]2 years ago

4 0

Answer:

is it 40

Step-by-step explanation:

6×10=60. 4×5=20

60-20=40

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A salesman normally makes a sale (closes) on % of his presentations. Assuming the presentations are independent, find the pro

Tamiku [17]

Answer:

$(a)\ 0.0864$

$(b)\ 0.096$

$(c)\ 0.24$

$(d)\ 0.936$

Step-by-step explanation:

Given

$p \to$ close

$q \to$ fail to close

$p = 60\%$

$p = 0.60$

First, calculate the value of q

Using complement rule

$q = 1 - p$

$q = 1 - 0.60$

$q = 0.40$

So, we have:

$p = 0.60$ and $q = 0.40$

Solving (a): Fails to close on the 4th attempt

This means that he closes the first three attempts. The event is represented as: p p p q

So, we have:

$Pr = p*p*p*q$

$Pr = p^3*q$

$Pr = 0.60^3*0.40$

$Pr = 0.0864$

Solving (b): He closes for the first time on the 3rd attempt

This means that he fails to close the first two attempts. The event is represented as: q q p

So, we have:

$Pr = q * q * p$

$Pr = q^2 * p$

$Pr = 0.40^2 * 0.60$

$Pr = 0.096$

Solving (c): First he closes is his 2nd attempt

This means that he fails to close the first. The event is represented as: q p

So, we have:

$Pr = q * p$

$Pr = 0.40 * 0.60$

$Pr = 0.24$

Solving (d): The first he close is one of his 3 attempts

To do this, we make use of complement rule

The event that he does not close any of his first three attempts is: q q q

The probability is:

$Pr = q*q*q$

$Pr = q^3$

The opposite is that the first he closes is one of the first three

So, we have:

$Pr' = 1- Pr$ --- complement rule

$Pr' = 1- q^3$

$Pr' = 1- 0.40^3$

$Pr' = 1- 0.064$

$Pr' = 0.936$

4 0

2 years ago

LMN is a straight angle. Find m LMP and m NMP

viva [34]

Answer:

(-16x + 13)° + (-20x + 23)° = 180° ( St. angle)

-16x° + 13° - 20x° + 23° = 180°

-4x° + 36° = 180°

-4x° = 180°-36°

-4x° = 144°

-x° = 144°/4

-x° = -36°

x° = 36°

<u>Minus</u><u> </u><u>Minus</u><u> </u><u>cut</u>

<u>I</u><u> </u><u>hope</u><u> </u><u>you</u><u> </u><u>can</u><u> </u><u>know</u><u> </u><u>this</u><u> </u><u>answer</u>

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2 years ago

Make the following conversion. 420 hg = _____ cg 4200000 420000 0.0420 0.00420

Otrada [13]

Using the standards of conversions, we will find that 1 hg is equivalent to 10000 cg.
Therefore, to convert 420 hg to cg, all you have to do is cross multiplication as follows:
420 hg = (420 x 10000) / 1 = 4200000 cg

The correct choice is: 4200000

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Answer:

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Find the height of a clock tower if the angle of elevation from a horizontal point 430 m from its base is 40°.

zaharov [31]

$\\ \sf\longmapsto tan40=\dfrac{P}{430}$

$\\ \sf\longmapsto 0.83=\dfrac{P}{430}$

$\\ \sf\longmapsto P=430(0.83)$

$\\ \sf\longmapsto P\approx361m$

P=Height of tower

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2 years ago

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