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3 years ago

Help with full calculations

Mathematics

1 answer:

aev [14]3 years ago

4 0

Answer:

2. (b) ∠ZYX

3. (b) noncollinear

Step-by-step explanation:

2. An angle is named by naming the two rays that make it up. The vertex (common end point of the two rays) is named in the middle.

Here, the rays making the angle are YX and YZ. The angle could be named either ∠XYZ or ∠ZYX.

3. Points not on the same line are <em>noncollinear</em>. Point E does not lie on line AB, so points A, B, and E are noncollinear.

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Raheem made a net of a triangular pyramid as shown.

Cerrena [4.2K]

Answer:

the answer is b

Step-by-step explanation:

i took the test it is b. The sum of the areas of faces A, B, and C.

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3 years ago

The scale factor between two similar shapes is 4. what is the scale factor of area

lana [24]

I think the scale of the factor of area is 2

6 0

3 years ago

Read 2 more answers

I also need help on this one smh

AysviL [449]

Answer:

C. 176.6 Square feet (I think)

Step-by-step explanation:

I tried many different ways and got three of the answers above but I think this is the right one.

The equation to find area of a circular cone base: $A= \pi r^2$

We are given the diameter (15 Feet) but we need to find the radius. So we use the diameter to radius formula: $r = \frac{d}{2}$
Plug in numbers: $r=\frac{15}{2}$ ≈ $7.5$
Use the Area formula now that you have radius: $A=\pi 7.5^2$
Solve and get = $a = 176.71458676$
Looking at the options the closest one to our answer (off by one-tenth) is C.

Sorry if you get this wrong. I tried lol.

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3 years ago

Does (3,1) satisfy 4x + 5y + 19

shtirl [24]

Answer:

Step-by-step explanation:

4*3 = 12

5*1 = 5

12 + 5 = 17

17 = 19 <-- doesn't make sense

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3 years ago

Suppose that for a recent admissions class, an Ivy League college received 2,851 applications for early admission. Of this group

masya89 [10]

Answer:

a. P(E) = 1033/ 2851=0.3623

P(R) = 854/2851=0.2995

P(D) = 964/2851=0.3381

P(E ∩ D) = P(E) +P(D)= 0.3623 +0.3381= 0.7004

(d) 0.423 158

Step-by-step explanation:

a. P(E) = 1033/ 2851=0.3623

P(R) = 854/2851=0.2995

P(D) = 964/2851=0.3381

(b) Are events E and D mutually exclusive?

Yes these events are mutually exclusive. If students are deferred they may be admitted later but not early. Mutually Exclusive or disjoint events do not occur at the same time.

P(E ∩ D) = P(E) +P(D)= 0.3623 +0.3381= 0.7004

(c) For the 2,375 students who were admitted, the probability that a randomly selected student was accepted during early admission is

P(E) = 1033/ 2851=0.3623

P(E) + P(D for later admission) =0.3623 + 18%*0.3381

=0.3623 + 0.0609 = 0.423 158

3 0

4 years ago