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3 years ago

The volume of this pyramid is 90 cm3. what is the height

Mathematics

1 answer:

Ksju [112]3 years ago

3 0

30 because you just have to divide it by three

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Express each repeating decimal as a fraction. 1. 1.8[4] 2. 2.1[26]

Viefleur [7K]

Hello,

1.8444444....=1.8+1/10*0.44444....
=1.8+1/10*4/9
=1.8+4/90
=162/90+4/90
=166/90
=83/45

2.126262626...=2.1+1/10*0.262626...
=2.1+1/10*26/99
=2.1+26/990
=2079/990+26/990
=2105/990
=421/198

4 0

3 years ago

If x = 5, find the value of a) x2 b) (x + 3)2

PtichkaEL [24]

Answer: a) = 10

b) = 16

Step-by-step explanation:

a) as x = 5 so putting the value of x in given equation

5 multiplied by 2 is equal to 10

b) Putting value of x in given equation

= (5 + 3) 2

According to BODMAS solve the brackets first

= 8 x 2

= 16

3 0

3 years ago

What point on the unit circle corresponds to an angle of 173º

Wewaii [24]

Ksjdhrisgdfbvgigsdtr aerigtksjdbfkhg is the correct answer

idk
lol

6 0

3 years ago

Tyler is 5 years younger than three times his cousin Lejla's age. Tyler is 40 years old.

Brut [27]

Answer:

I times 3-5

Step-by-step explanation:

Their are other ways to do it

Sorry if it is not the answer you were looking for.

3 0

3 years ago

Read 2 more answers

Which number is a solution of the inequality?

padilas [110]

we know that

A number is an inequality solution if the number satisfies the inequality

Part 1) $10.6 < b$

rewrite the inequality

$b > 10.6$

The answer Part 1) is the option D $14$

Because $14$ satisfies the inequality

$14 > 10.6$ -----> is true

Part 2) $m > 7/12$

The answer Part 2) is the option A $1$

Because $1$ satisfies the inequality

$1 > 7/12$ -----> is true

Part 3) $8< x(7-x)$

we're going to verify every case

case A) For $x=2$

substitute the value of x in the inequality

$8< 2(7-2)$

$8< 10$ ------> is true

therefore

The number $2$ is a solution

case B) For $x=8$

substitute the value of x in the inequality

$8< 8(7-8)$

$8< -8$ ------> is not true

therefore

The number $8$ is not a solution

case C) For $x=-1$

substitute the value of x in the inequality

$8< -1(7-(-1))$

$8< -8$ ------> is not true

therefore

The number $-1$ is not a solution

case D) For $x=0$

substitute the value of x in the inequality

$8< 0(7-0)$

$8< 0$ ------> is not true

therefore

The number $0$ is not a solution

therefore

The answer Part 3) is the option A $2$

6 0

3 years ago

Read 2 more answers