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4 years ago

What's the size of 2ABC shown in the above figure?

Mathematics

1 answer:

cluponka [151]4 years ago

3 0

Answer:

Hello There!

~~~~~~~~~~~~~~~~~~`

Your answer would be (B) 35.

Step-by-step explanation:

m∠ABC = 1/2(measure of arc AC)

m∠ABC = 1/2(70)

m∠ABC = 35°

(inscribed angle formula)

Hope this helped you. Brainliest would be nice!

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Please help me thank you

laila [671]

Parallel lines have the same slope. The equation of the parallel line is therefore:

y = x + b

Plug in the values you are given to find b:

2 = -3 + b

b = 5

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3 years ago

If 89 X 25 = 2225 work out 89 x 250?

Andreas93 [3]

89 times 250 is just going to be 22,250. It's just adding one more zero!

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3 years ago

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What is 13x-8 less than or equal to -32 simplified?

lapo4ka [179]

Answer:

Add

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13x≥−32+8

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3 years ago

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Question 4 options: Find the mean and standard deviation for a binomial distribution with 680 trials and a probability of succes

lys-0071 [83]

Answer:

Mean for a binomial distribution = 374

Standard deviation for a binomial distribution = 12.97

Step-by-step explanation:

We are given a binomial distribution with 680 trials and a probability of success of 0.55.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 680 trials

r = number of success

p = probability of success which in our question is 0.55

So, it means X ~ $Binom(n=680, p=0.55)$

Now, we have to find the mean and standard deviation of the given binomial distribution.

Mean of Binomial Distribution is given by;

E(X) = n $\times$ p

So, E(X) = 680 $\times$ 0.55 = 374

Standard deviation of Binomial Distribution is given by;

S.D.(X) = $\sqrt{n \times p \times (1-p)}$

= $\sqrt{680 \times 0.55 \times (1-0.55)}$

= $\sqrt{680 \times 0.55 \times 0.45}$ = 12.97

Therefore, Mean and standard deviation for binomial distribution is 374 and 12.97 respectively.

3 0

3 years ago

I won $60,000 I invested part in a CD at 2% interest the rest at 3%interest in a cd at the end of the year I earned $1600 in int

zaharov [31]

Let x = amount invested in 2% CD and y = amount invested in 3% CD
x + y = 60000
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SOLVE THE 1st EQUATION FOR x AND SUBSTITUTE RESULT IN 2nd
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y = 13333.34
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3 years ago

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