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3 years ago

I need help before with this before 12:00 am

Mathematics

2 answers:

bearhunter [10]3 years ago

8 0

7:18 light years hope you get it correct

frutty [35]3 years ago

6 0

Answer:

7.18 light-years

Step-by-step explanation:

6.8 x 10^13 = 68,000,000,000,000

9.46 x10 ^12 = 9,460,000,000,000

6.8 x 10^13 * 1 light year / 9.46 x 10^12 = 7.188 light years.

Have a Merry X-MAS Plz MArk Branilest

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What is the sum of the roots of the polynomial shown below? f(x) = x^3 + 2x^2 - 11x-12

svp [43]

Answer:

Sum of the roots of the polynomial $x^{3}+2 x^{2}-11 x-12 \text { is }-2$

Solution:

The general form of cubic polynomial is $a x^{3}+b x^{2}+c x+d=0$ ---- (1)

If we have any cubic polynomial $a x^{3}+b x^{2}+c x+d=0$ having roots $\alpha , \beta , \theta$

Sum of roots $\alpha + \beta + \theta$ = $\frac{-b}{a}$ ---(2)

From question given that,

$x^{3}+2 x^{2}-11 x-12$ --- (3)

On comparing equation (1) and (3), we get a = 1, b = 2, c = -11 and d = -12

Hence the sum of roots using eqn 2 is given as,

= $\frac{-2}{1}$

= -2

Hence the sum of the roots of the polynomial $x^{3}+2 x^{2}-11 x-12 \text { is }-2$

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3 years ago

Can anybody help me please

Alexxandr [17]

Step-by-step explanation:

I think you are clear. You can follow me to get more answers. Thanks.

5 0

2 years ago

point p is located at (x, y). The point is reflected in the y-axis. Point P’s image is located at (__?__)

lesya [120]

Answer:

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Step-by-step explanation:

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3 0

3 years ago

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What is the spuare root of 144

SVEN [57.7K]

Answer:

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3 years ago

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In the supermarket a loaf of bread costs 37p how many loaves can david buy with a 2 coin ? How much money will be left over?

Rasek [7]

Answer: He can buy 5 loaves of bread.

After buying 5 loaves 15 p will be left.

Step-by-step explanation:

Given, In the supermarket a loaf of bread costs 37p .

To find: How many loaves can David buy with a $\pounds 2$ coin?

Since $\pounds 1=100\text{ pence}$

Then, $\pounds 2=200\text{ pence}$

Number of loaves he can buy = (Amount he has) ÷ (Cost of a loaf of bread)

= 200 p ÷ 37 p

$=5\dfrac{15}{37}$

i.e. he can buy 5 loaves of bread and 15 p will be left.

Hence, He can buy 5 loaves of bread.

After buying 5 loaves 15 p will be left.

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3 years ago