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3 years ago

If A(x,1),B(-3,7), C(-5,9), and D(5,4) find the value of x so that AB||CD

Mathematics

1 answer:

Mashutka [201]3 years ago

3 0

I’m not sure sorryyyy hope someone helps

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Calculate the simple interest on $1500 for 3 years at 20% per annum

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Answer:

see explanation below

Step-by-step explanation:

1500 × 3 × 20 ÷ 100

$900

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2 years ago

Simplify. 7x² - x + 9 + 6x² + 5x - 10 ___________ Will give brainliest.

Ira Lisetskai [31]

Answer:

13²+4−1

Step-by-step explanation:

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2 years ago

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The mass of Earth is made up of these parts.

Elena-2011 [213]

Answer:

1. atmosphere

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3.crust

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3 years ago

In a survey of adults who follow more than one sport, 30% listed football as their favorite sport. You survey 15 adults who foll

maxonik [38]

Answer: 0.5

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_x\ p^x(q)^{n-x}$ , where P(x) is the probability of getting success in x trials , n is the total trials and p is the probability of getting success in each trial.

Given : The probability that the adults follow more than one game = 0.30

Then , q= 1-p = 1-0.30=0.70

The number of adults surveyed : n= 15

Let X be represents the adults who follow more than one sport.

Then , the probability that fewer than 4 of them will say that football is their favorite sport,

$P(X\leq4)=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)\\\\=^{15}C_{0}\ (0.30)^0(0.70)^{15}+^{15}C_{1}\ (0.30)^1(0.70)^{14}+^{15}C_{2}\ (0.30)^2(0.70)^{13}+^{15}C_{3}\ (0.30)^3(0.70)^{12}+^{15}C_{4}\ (0.30)^4(0.70)^{11}\\\\=(0.30)^0(0.70)^{15}+15(0.30)^1(0.70)^{14}+105(0.30)^2(0.70)^{13}+455(0.30)^3(0.70)^{12}+1365(0.30)^4(0.70)^{11}\\\\=0.515491059227\approx0.5$

Hence, the probability rounded to the nearest tenth that fewer than 4 of them will say that football is their favorite sport =0.5

4 0

3 years ago

A rectangle with a width of 3 units and a length of x +5

Luden [163]

Answer:

The area is 45 units squared

Step-by-step explanation:

If the rectangle's width is 3 units, and the length is 5 times then:

5 x 3 = 15

So the length is 15 units

The area is length times width

15 x 3 = 45

The area is 45 units squared

7 0

3 years ago