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3 years ago

HELP ME SOLVE THE AREA OF THIS TRAINGLE

Mathematics

1 answer:

alexdok [17]3 years ago

7 0

A triangle is 1/2 bh so .5*8*6 which equals 25 cm square. hope I helped. brainliest would be much appreciated because I am trying to rank up!!!

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Correct 0.00578 to 2 decimal places<br><br>(year 9 - British system)

MrMuchimi

Answer:

0.00578 the answer is 0.0058

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2 years ago

How do I Take this down

Mars2501 [29]

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2 years ago

Find a third-degree polynomial equation with the rational coefficients that has roots -3 and 1+i

jolli1 [7]

Answer:

x³ + x² − 4x + 6 = 0

Step-by-step explanation:

Imaginary roots come in conjugate pairs. So if 1+i is a root, then 1−i is also a root.

(x − (-3)) (x − (1+i) (x − (1−i)) = 0

(x + 3) (x² − (1+i) x − (1−i) x + (1+i) (1−i)) = 0

(x + 3) (x² − x − ix − x + ix + 1 − i²) = 0

(x + 3) (x² − 2x + 2) = 0

x (x² − 2x + 2) + 3 (x² − 2x + 2) = 0

x³ − 2x² + 2x + 3x² − 6x + 6 = 0

x³ + x² − 4x + 6 = 0

3 0

3 years ago

What is the scientific notation for 1,520,000,000??? Help soon!!!

lozanna [386]

1.52x10^9
that your answer
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8 0

4 years ago

What is the equation of the line best fit for the following data? Round the slope and y-intercept of the line to three decimal p

kari74 [83]

Answer:

$y=1.383x-1.526$

Step-by-step explanation:

The given data table is

x : 4 7 10 12 13

y : 5 7 12 14 18

We need to find the equation of the best fit line.

The general form of a best fit line is

$y=mx+b$ .... (1)

where, m is slope and b is y-intercept.

$m=\frac{\sum_{i=1}^nx_iy_i-n\overline{x}\overline{y}}{\sum_{i=1}^nx_i^2-n\overline{x}^2}$

$b=\overline{y}-b\overline{x}$

Using the graphing calculator we get

$m=1.38321\approx 1.383$

$b=-1.52555\approx -1.526$

Substitute m=1.383 and b=-1.526 in equation (1).

$y=1.383x-1.526$

Therefore, the equation of best fit line is $y=1.383x-1.526$ .

4 0

4 years ago

Read 2 more answers