3 years ago

I need to know this ASAP 20 points,

Mathematics

2 answers:

Sonbull [250]3 years ago

7 0

Answer: B

Step-by-step explanation:

grigory [225]3 years ago

3 0

I think the answer is B

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Expand and simplify (x+3)(x-4)

Vinvika [58]

Answer:

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Step-by-step explanation:

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3 years ago

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find the coordinates of p so that p partitions segment ab in the part to whole ratio of 1 to 4 with a(-5,4) and b(7,-4)

scoray [572]

Answer:

$p(x,y) = (-2.6 ,2.4)$

Step-by-step explanation:

Given

a(-5,4) and b(7,-4)

Required

Partition P

Given that the segment ab is divided into ratio;

The coordinates of point p can be calculated using ratio formula given below

$p(x,y) = (\frac{mx_2 + nx_1}{m+n} ,\frac{my_2 + ny_1}{m+n})$

Where m and n are the ratio; m = 1 and n = 4

$(x_1, y_1) = (-5,4); \\(x_2, y_2) = (7,-4)$

So,

$p(x,y) = (\frac{mx_2 + nx_1}{m+n} ,\frac{my_2 + ny_1}{m+n})$ becomes

$p(x,y) = (\frac{1 *7 + 4 * -5}{1+4} ,\frac{1 * -4 + 4 * 4}{1+4})$

$p(x,y) = (\frac{7 + -20}{5} ,\frac{-4 + 16}{5})$

$p(x,y) = (\frac{-13}{5} ,\frac{12}{5})$

$p(x,y) = (-2.6 ,2.4)$

Hence, the coordinates of p are (-2.6,2.4)

3 0

4 years ago

Plz I really need help!!!

BartSMP [9]

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3 years ago

Two balls are drawn in succession out of a box containing 2 red and 4 white balls. Find the probability that at least 1 ball was

Anestetic [448]

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3 years ago

Jason is 11 years old. His older brother is 5 years less than twice as old as he is. How old is Jason's older brother? In 3 year

melisa1 [442]

older

brother x+5=2*11

x=17

young

brother 2*(y+3)=11+3

y=4

8 0

3 years ago