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3 years ago

Can anyone help me with this question

Mathematics

2 answers:

madam [21]3 years ago

7 0

Answer:

The answer to this question is 9

borishaifa [10]3 years ago

4 0

ANSWER

EXPLANATION

The given radical is

$\sqrt[3]{729}$

We can rewrite this as

${(729)}^{ \frac{1}{3} }$

Now we need to rewrite 729 as a power with an exponent of 3.

${(9 \times 9 \times 9)}^{ \frac{1}{3} }$

${( {9}^{3} )}^{ \frac{1}{3} } = {(9)}^{3 \times \frac{1}{3} } = {9}^{1} = 9$

The third choice is correct.

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What is10 + 9 i really dont know can someone help me

Tresset [83]

$\huge \green{ \boxed{ANSWER}}$

$10 \: + \: 9 \: = {\boxed{19}}$

USE CALCULATOR -_-

$\mathfrak{JazmineChoi}$

STAN TREASURE

8 0

2 years ago

Read 2 more answers

Math help me))))))))please

olasank [31]

X^2/(x- 9 = 81/(x - 9)
This is the equation for which you want the solution.
Multiplying both sides of the equation by (x - 9) we get
x^2(x - 9)/(x - 9) = 81(x - 9)/(x - 9)
So the (x - 9) goes out from both the denominator and the numerator and then the simplified equation becomes
x^2 = 81
x ^2 = (9)^2
x = 9
So the value of the unknown variable x comes out to be 9.

6 0

3 years ago

Read 2 more answers

Mark u as branliest but answer right plz

yanalaym [24]

Answer:

Step-by-step explanation:

55+4x

8 0

3 years ago

Water is leaking out of an inverted conical tank at a rate of 12,000 cm3/min at the same time that water is being pumped into th

Bas_tet [7]

Answer:

$291111.1cm^3/min$

Step-by-step explanation:

We are given that

$\frac{dV}{dt}_{out}=12000 cm^3/min$

Height of tank,h=6 m

Diameter of top,d=4 m

Radius,r= $\frac{d}{2}=\frac{4}{2}=2 m$

$\frac{dh}{dt}=20 cm/min$

$\frac{r}{h}=\frac{2}{6}=\frac{1}{3}$

$r=\frac{1}{3} h$

We have to find rate at which water is being pumped into the tank.

Volume of conical ,V= $\frac{1}{3}\pi r^2 h$

$V=\frac{1}{3}\pi(\frac{1}{3} h)^2h=\frac{1}{27}\pi h^3$

$\frac{dV}{dt}=\frac{1}{9}\pi h^2(\frac{dh}{dt})$

h=2 m=200 cm

1m=100 cm

$\frac{dV}{dt}_{in}-12000=\frac{1}{9}\pi(200)^2\times 20$

$\frac{dV}{dt}_{in}=12000+\frac{1}{9}\pi (40000)\times 20$

$\frac{dV}{dt}_{in}=291111.1cm^3/min$

4 0

3 years ago

Three cars are driving on a racetrack. The mean speed of the three cars is 100 miles per hour. Car X drives 109 miles per hour a

siniylev [52]

Answer:

Step-by-step explanation:

The mean is the average found by adding the sum of the data points and dividing by the number of them. Here there are 3 cars whose speeds are 109, 111, and Z or unknown. The mean of them is 100. Solve for Z.

100 =(109+111+Z)/3

300=220+Z

80=Z

The speed of Car Z is less than 100.

3 0

3 years ago