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yarga [219]
3 years ago
12

I need answers please​

Mathematics
1 answer:
Semmy [17]3 years ago
4 0
4. 0.76
5. 0.18
8. 4.48
9. 0.08
12. 3.08
13. 0.45

:)
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In a pair of complementary angles, the larger angle is six more than three times the smaller angle. the measures of the angles a
harina [27]
2 angles are Complementary, if the sum of their measures = 90°.

Let the 2 angles be A and B, and let their measures be m(A)=a, m(B)=b.

Let A be the larger angle.



"the larger angle is six more than three times the smaller angle."

can be 'translated' into algebra as:   a = 6 + 3b

Also, since A and B are complementary, we have a+b=90°.


substitute a=6+3b in the second equation:

a+b=90°

(6°+3b+b)=90°


4b=90°-6°

b=84°/4=21°



Then, a = 90°-21°=69°


Answer: a= 69°, b=21°
7 0
3 years ago
If j and k are intersecting lines, A and B are points on j, and C and D are points on k, how many planes contain points A, B, C,
ValentinkaMS [17]
The correct answer to this question is letter "<span>B. We can't determine from the given information."
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Using the information as stated, "<span>If j and k are intersecting lines, A and B are points on j, and C and D are points on k," the number of planes that contain points A, B, C, and D cannot be determined because of the lack of information.
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7 0
4 years ago
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Is Event B dependent or independent of Event A? A: A green ball is drawn from a box with five balls and placed next to the box.
Zarrin [17]

Answer:

Step-by-step explanation:

Given that events are as follows:

A: A green ball is drawn from a box with five balls and placed next to the box. B: A red ball is drawn next and placed next to the green one

i.e. drawings of balls are made without replacement

Suppose there are m green balls and n red balls, where m+n =5

Prob of drawing green ball =m/5

After I draw made remaining are n red balls and m-1 green balls

Prob of drawing red ball now =n/4

Prob for drawing one green and one red simultaneously = \frac{mC1*nC1}{5C2} \\= \frac{mn}{10}

Product of the two probabilities = \frac{m}{5} *\frac{n}{4} \\=\frac{mn}{20}

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4 years ago
The volume of a cone is 36, what is the volume of a sphere that has the same height and radius
Nostrana [21]

Answer:

144

Step-by-step explanation:

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3 years ago
Bradley has a goal to work 28 hours each week at the pizza shop. So far he has
k0ka [10]

Answer:

it's 14h

Step-by-step explanation:

The h stands for hours and he needs to work 14 more hours.

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