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2 years ago

The area of a triangular flower bed in the park has an area of

Mathematics

1 answer:

blagie [28]2 years ago

8 0

Answer:

b = 24 ft

h = 10 ft

Step-by-step explanation:

120 = ½hb

120 = ½h(3h - 6)

240 = h(3h - 6)

240 = 3h² - 6h

80 = h² - 2h

0 = h² - 2h - 80

0 = (h - 10)(h + 8)

h = 10 ft or -8 ft

we ignore -8 as it makes no sense for a triangle side length.

b = 3(10) - 6 = 24 ft

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The average low temperature for Phoenix, Arizona in June is 72° F. This is 31°F

Rzqust [24]

Answer:

Step-by-step explanation:This would be 72+31 getting you an average high of 103 degrees F i believe.

6 0

2 years ago

Which are solutions of x2 + 5x = 2? Check all that apply.

ANEK [815]

we have

$x^{2} +5x=2$

Complete the square. Remember to balance the equation by adding the same constants to each side

$x^{2} +5x+2.5^{2}=2+2.5^{2}$

$x^{2} +5x+6.25=2+6.25$

$x^{2} +5x+6.25=8.25$

Rewrite as perfect squares

$(x+2.5)^{2}=8.25$

Square Root both sides

$(x+2.5)=(+/-)\sqrt{8.25}$

$x=(+/-)\sqrt{8.25}-2.5$

$\sqrt{8.25}=\frac{\sqrt{33}}{2}$

substitute

$x=(+/-)\frac{\sqrt{33}}{2}-2.5$

therefore

<u>the answer is</u>

the solutions are

$x1=-2.5+\frac{\sqrt{33}}{2}$ or $x1=\frac{-5+\sqrt{33}}{2}$

$x2=-2.5-\frac{\sqrt{33}}{2}$ or $x2=\frac{-5-\sqrt{33}}{2}$

7 0

3 years ago

Read 2 more answers

Please help so i can play my electronics

Maslowich

Answer:

All questions are answered in the photo, the answers are correct, but you might have a different method

8 0

2 years ago

Is 11.34 greater or less than 11.340

Alborosie

Equal to! If we have a decimal and we add a zero onto the END, the value will not change! The values will only change if you change the place values. Now, this is only with decimals!!

4 0

2 years ago

So wait what is the answer then

katrin [286]

Answer:

to what??????

Step-by-step explanation: ???????

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2 years ago