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erastovalidia [21]
3 years ago
10

Please Help!

Mathematics
1 answer:
Strike441 [17]3 years ago
6 0

Answer:

Amelia has more she has 1/2 and Alex has 1/3

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David can type a 50-page paper in 8 hours. Last month, David and Andy together typed a
erik [133]

Answer:

12.5pages

Step-by-step explanation:

50pages ×6hours=300 and then we divide by 8 to get 37.5(the number of pages printed by david in 6 hours)

subtract 37.5 from 50 to find the number of pages printed by andy

3 0
3 years ago
100 POINTS AND BRAINILY
Arte-miy333 [17]

Answer:

Step-by-step explanation:

In a right-angled triangle, by definition:

sinX = opposite side / hypothesis

= 5/13

tanX = opposity side / adjacent side

= 5/12

cosX = adjacent side / hypothesis

= 12/13

7 0
2 years ago
Read 2 more answers
Heya! ツ
fiasKO [112]

Answer:

See Below.

Step-by-step explanation:

In the given figure, O is the center of the circle. Two equal chords AB and CD intersect each other at E.

We want to prove that I) AE = CE and II) BE = DE

First, we will construct two triangles by constructing segments AD and CB. This is shown in Figure 1.

Recall that congruent chords have congruent arcs. Since chords AB ≅ CD, their respective arcs are also congruent:

\stackrel{\frown}{AB }\, \cong\, \stackrel{\frown}{CD}

Arc AB is the sum of Arcs AD and DB:

\stackrel{\frown}{AB}=\stackrel{\frown}{AD}+\stackrel{\frown}{DB}

Likewise, Arc CD is the sum of Arcs CB and DB. So:

\stackrel{\frown}{CD}=\stackrel{\frown}{CB}+\stackrel{\frown}{DB}

Since Arc AB ≅ Arc CD:

\stackrel{\frown}{AD}+\stackrel{\frown}{DB}=\stackrel{\frown}{CB}+\stackrel{\frown}{DB}

Solve:

\stackrel{\frown}{AD}\, \cong\,\stackrel{\frown}{CB}

The converse tells us that congruent arcs have congruent chords. Thus:

AD\cong CB

Note that both ∠ADC and ∠CBA intercept the same arc Arc AC. Therefore:

\angle ADC\cong \angle CBA

Additionally:

\angle AED\cong \angle CEB

Since they are vertical angles.

Thus:

\Delta AED\cong \Delta CEB

By AAS.

Then by CPCTC:

AE\cong CE\text{ and } BE\cong DE

5 0
2 years ago
Read 2 more answers
Y=mx+bWhat variable shows the y intercept of the line?
Y_Kistochka [10]

Answer:

y- intercept is 'b'

Step-by-step explanation:

<u>Explanation</u>:-

Equation of the line having a slope 'm' and y- intercept 'c' is y=mx+c

slope - intercept form is y = mx +c

In given equation y = mx +b comparing y = mx +c

In above equation 'm' is the slope of the line = tan θ , θ be the angle

and y- intercept is 'b'

7 0
3 years ago
A sphere has a volume of 18,432π cubic feet. What is the radius of the sphere?
Vinil7 [7]
Volume of sphere is given by:
V=4/3πr³
thus the value of r will be found as follows:
Plug in the values we get:
18432π=4/3πr³
solving for r we get:
r³=13824
r=∛13824
r=24 ft
8 0
3 years ago
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