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3 years ago

Circle X is shown in the diagram.

Mathematics

1 answer:

GaryK [48]3 years ago

7 0

Answer:

m<1 = 1/2(a+b)

Step-by-step explanation:

First, you have to add the two different side angles and then divide by two. I just took my quiz and got this.

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Alan has 90 apple tree he has 90 apples and each apple tree how many apples does he have in all?

Nonamiya [84]

Answer:

8100

Step-by-step explanation: yee yee

6 0

3 years ago

Christine has always been weak in mathematics. Based on her performance prior to the final exam in Calculus, there is a 65% chan

amm1812

Answer:

0.49

Step-by-step explanation:

We apply conditional probability to solve this question.

We have Events X and Events Y

P(X) = Probability Christine fails the course = ??? Unknown

P(Y) = Probability Christine finds a tutor

= 0.35

P(Y') = Probability Christine does not find a tutor = 1 - 0.35 = 0.75

P(X|Y) = Decrease in her probability of failing = 0.35

P(X|Y') = Probability that she will fail the course if she does not have a tutor

P(X) = P(X|Y) × P(Y) + P(X|Y') × P(Y')

P(X) = 0.35 × 0.75 + 0.65 × 0.35

P(X) = 0.2625 + 0.2275

P(X) = 0.49

The probability that Christine fails the course is 0.49

8 0

3 years ago

At the city newsstand, Sunday papers are 10% off after 5:00 PM. Mr.Johnson pays $3.60 for a paper after 5:00 PM. He wants to kno

maxonik [38]

The regular price is $4 i.e., $3.6 divided by 0.9 = $4

7 0

3 years ago

Read 2 more answers

Could you help me with 8-9

tigry1 [53]

That would be negative 1 for your answer to 8 - 9

7 0

3 years ago

Read 2 more answers

Estimate the time it takes for a free fall drop from 10 meters height. Also estimate the time a 10 m platform diver would be in

murzikaleks [220]

Answer:

a) $t = \sqrt{\frac{2 *10m}{9.8 m/s^2}}=1.43s$

b) $4.9t^2 -2t -10 =0$

And we can use the quadratic formula to solve it:

$t = \frac{2 \pm \sqrt{(-2)^2 -4(4.9)(-10)}}{2*4.9}$

$t =\frac{2 \pm \sqrt{200}}{9.8}$

$t_1 =1.65 s, t_2 =-1.24 s$

And since the time can't be negative the correct option would be $t=1.65 s$

Step-by-step explanation:

For this case we can use the following kinematics formulas:

$y_f = y_o + V_o t + \frac{1}{2} a t^2$

For this case we assume that the only acceleration is the gravity a = g =9.8 m/s^2. And for this case we can assume that the reference point is $y_o =0$ and the final height would be $y_f = -10 m$ since is below the initial point.

Teh acceleration would be a=-g, since the gravity is acting dowward, we assume that the initial velocity is 0, so then we have everything to replace and we got:

$-10 m = 0m + (0m/s)t -\frac{1}{2} (9.8 m/s^2) t^2$