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3 years ago

Type of triangles

2 answers:

4 0

A right angled triangle is a traingle with equal sides and the same size angles acute angles are normally in iscoceles triangle and are less than 90 degrees obtuse normally can be on a line or in a scalene triangle it’s more than 90 degrees but no more than 180 degrees

jasenka [17]3 years ago

3 0

Right angle triangle is a triangle with a right angle an acute triangle is a triangle lower than 90degrees obtuse is bigger than 90degrees

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The square root of 129 is between what two integers

BigorU [14]

Hey there! :)

Your answer is: Between 11 and 12

11² = 11 × 11 = 121
12² = 12 × 12 = 144

129 is between 121 and 144

Hope this helps :)

6 0

2 years ago

Water pours into a tank at the rate of 2000 cm3/min. The tank is cylindrical with radius 2 meters. How fast is the height of wat

Gennadij [26K]

Volume of water in the tank:

$V=\pi (2\,\mathrm m)^2h=\pi(200\,\mathrm{cm})^2h$

Differentiate both sides with respect to time t :

$\dfrac{\mathrm dV}{\mathrm dt}=\pi(200\,\mathrm{cm})^2\dfrac{\mathrm dh}{\mathrm dt}$

V changes at a rate of 2000 cc/min (cubic cm per minute); use this to solve for dh/dt :

$2000\dfrac{\mathrm{cm}^3}{\rm min}=\pi(40,000\,\mathrm{cm}^2)\dfrac{\mathrm dh}{\mathrm dt}$

$\dfrac{\mathrm dh}{\mathrm dt}=\dfrac{2000}{40,000\pi}\dfrac{\rm cm}{\rm min}=\dfrac1{20\pi}\dfrac{\rm cm}{\rm min}$

(The question asks how the height changes at the exact moment the height is 50 cm, but this info is a red herring because the rate of change is constant.)

7 0

3 years ago

What does the value of the 3 in the number 2358916

geniusboy [140]

The answer is 300,000

8 0

3 years ago

Read 2 more answers

A bookstore had 64 copies of a magazine. Yesterday, it sold 1/4 of them. Today, it sold 1/8 of what remained. How many copies do

just olya [345]

Answer: 42

Step-by-step explanation:

if the bookstore has 64 copies,

yesterday it was sold 1/4 , so it was sold 64/4=16

today it was sold 1/8 from what remained, which is 6(see below)

64-16=48

48/8=6

the store has left 48-6=42

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3 years ago

What is 26.73 rounded to the nearest decimal

Goshia [24]

I think it's 26.70 if I remember what a decimal is.

5 0

3 years ago