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Alekssandra [29.7K]
3 years ago
7

HELP DUE IN 10 MINS!

Mathematics
1 answer:
Ksju [112]3 years ago
5 0

Answer:

125.6 cm²

Step-by-step explanation:

the area of sector = 225/360×3.14×8²

= ⅝ × 3.14 × 64

= 3.14 × 40

= 125.6 cm²

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Linda has $26. She wants to buy a ski pass for $80.
bezimeni [28]

Answer:

Linda would have to babysit for 9 hours.

Step-by-step explanation:

26+54=80

54÷6=9

8 0
3 years ago
Read 2 more answers
I need help on this question
BigorU [14]

Answer:

c

Step-by-step explanation:

I think its c because there is no relation between 2x-1 and 4-x ,it is not equals its + because there is no equals in a straight angle

6 0
2 years ago
Helppppppp!!!!!!!!!!!!
LuckyWell [14K]

Answer:

3 4/5 or 3.8

Step-by-step explanation:

median you just start marking them off.

3 2/5, 3 2/5, 3 4/5, 3 4/5, 3 4/5, 4,4,4

8 0
3 years ago
If triangle DEC is congruent to triangle BEC,which is true by CPCTC?
inn [45]
Let's go through the possible answer choices one by one

A) BE is congruent to ED
This is true because "BE" and "ED" are formed by the first two letters of BEC and DEC respectively. The triangles are congruent, so the corresponding sides must be congruent. To name a segment, the order does not matter. Writing "DE" is the same as "ED".

B) AC is congruent to BD
False. Point A isn't mentioned at all. We don't know for sure how point A fits in. The statement may be true, or it could easily be false as well. We don't have enough info.

C) Angle BEC = angle DCE
False. The order of the letters is very important. For angle BEC, we have E in the middle so the vertex of the angle is at point E. For angle DCE, the vertex is at point C. If angle BEC = angle DCE, then E and C must correspond; however they don't. Back up at the top, it says "DEC is congruent to BEC", so we see that E corresponds to E, and C corresponds to C. 

D) angle BCA = angle BCD
False. Again we don't know anything about point A. The same issues come up as they did with choice B.

The only true result is choice A
8 0
3 years ago
The PSTAT Department at UCSB has developed a Markov model to simulate graduation rates in their programs. Students might drop ou
goldfiish [28.3K]

Answer:

State space

S=\{F,So,J,Sr,G,D\}

Transition probability matrix

\begin{bmatrix} & F & So&J&Sr&G&D\,\\ F &0.03&0.91&0&0&0&0.06\,\\So&0&0.03&0.91&0&0&0.06\\J&0&0&0.03&0.93&0&0.04\\ Sr&0&0&0&0.03&0.93&0.04\\G&0&0&0&0&1&0\\D&0&0&0&0&0&1\end{bmatrix}

The transition graph is attached.

Step-by-step explanation:

The state space for this Markov chain is all the possible states that the variable can take.

In this case the student can be: Freshman, Sophomore, Junior, Senior, Graduate and Drop out

S=\{F,So,J,Sr,G,D\}

The transition probability matrix for this state space is:

\begin{bmatrix} & F & So&J&Sr&G&D\,\\ F &0.03&0.91&0&0&0&0.06\,\\So&0&0.03&0.91&0&0&0.06\\J&0&0&0.03&0.93&0&0.04\\ Sr&0&0&0&0.03&0.93&0.04\\G&0&0&0&0&1&0\\D&0&0&0&0&0&1\end{bmatrix}

The transition graph is attached.

7 0
3 years ago
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