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3 years ago

Solve using any method. 2 x^2 + x - 5 = 0

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

8 0

if you meant: x^2 + x - 5 = 0

1.792 = x, although i could be wrong, its the only answer i found

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What is the distance between (-4,8) and (12,8) on a coordinate plane?

bazaltina [42]

Answer:

Step-by-step explanation:

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3 years ago

If it is 11:15

soldi70 [24.7K]

My god, this is tricky but it's between D and E.

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3 years ago

How do you solve 2x+4=7

marissa [1.9K]

2x+4=7 subtract 4 from both sides

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3 years ago

4.4 x 10 to the negative fifth power is what in standard form

Firdavs [7]

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3 years ago

11th grade geometry:

Aliun [14]

Answer:

The perimeter is 72 units and the area is 149 square units.

Step-by-step explanation:

$\triangle SBA$ has coordinates $S(15,-8),B(-2,21)$ and $A(0,0)$

Using the distance formula.........

Length of side $SB = \sqrt{(15+2)^2+(-8-21)^2}= \sqrt{17^2+(-29)^2}= \sqrt{1130}$

Length of side $BA= \sqrt{(-2)^2+(21)^2}= \sqrt{445}$

Length of side $AS =\sqrt{(15)^2+(-8)^2}=\sqrt{289}=17$

So, the perimeter of the triangle will be: $(SB+BA+AS)= \sqrt{1130}+ \sqrt{445}+17 =71.71... \approx 72$ units. (Rounded to the nearest unit)

The height of the triangle for the corresponding base $SB$ is 8.89 units.

Formula for the Area of triangle, $A= \frac{1}{2}(base\times height)$

So, the area of the $\triangle SBA$ will be: $\frac{1}{2}(\sqrt{1130}\times 8.89)= 149.42... \approx 149$ square units. (Rounded to the nearest unit)

3 0

3 years ago