2 years ago

One of the legs of a right triangle measures 12 cm and the other leg measures 9 cm.

Mathematics

2 answers:

Alex73 [517]2 years ago

8 0

15 cm

Pls see photo for explanation!

PolarNik [594]2 years ago

7 0

Answer:

15cm

Step-by-step explanation:

a^2+b^2=c^2

12^2+9^2=c^2

144+81=c^2

c^2=225

c=15

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A car drives 40 miles on local roads at 20 mph, and 180 miles on the highway at 60 mph, w Your dinner bill is $25 before tax. Th

Anastasy [175]

Answer and Step-by-step explanation:

$Let's~solve~your~problem!$

Formula :

$speed=\frac{distance}{time}$

Solving for time:

$Time~taken~to~cover~40~miles~on~local~ roads~= \frac{40}{20} = 2~hours$

$Time~taken~to~cover~180~miles~on~the~highway~=$ $\frac{180}{60}=3~hours$

$Total~Time~=~5~hours$

Solving for distance:

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Average speed:

 $\frac{Total~distance}{Total~time} = \frac{225}{5} = 44~miles~per~hour$ 

6 0

3 years ago

I need help on this someone please answer this.

Crank

Answer:

60! Add em all up

Step-by-step explanation:

7 0

3 years ago

What is the area of this trapezoid? 10cm 5cm 12cm 1.5cm

lutik1710 [3]

Area of a trapezoid = a+b+c x h

10 + 5 +12 = 27 x h

27h = 27 x 1.5 = 40.5

8 0

3 years ago

A pilot of a helicopter plans to release a bucket of water on a forest fire. The height y in feet of water t seconds after its r

frosja888 [35]

You’re gonna have to use the quadratic formula here and a bit of thinking. We know y is height, and once it touches the ground, it will be 0.

(-b +- sqrt b^2 - 4ac)/2a
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(2 +- 138.58)/-32
We don’t want a negative time because it’ll make no sense. So do subtraction

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3 years ago

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Y_Kistochka [10]

Answer:

Step-by-step explanation:

z+3z+25=125

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z=25

3 0

3 years ago

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