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3 years ago

Find the value. X3-4 when x=3 PLEASE HELP!!! ASAP!!!

Mathematics

2 answers:

DENIUS [597]3 years ago

7 0

Answer:

Step-by-step explanation:

Raise 3 to the power of 3

27 - 4

Subtract 4 from 27

Hope this was correct

andrew11 [14]3 years ago

4 0

Answer:

23

Explanation:

step 1 - rewrite the expression with the value of x

$x^3 - 4$

$(3)^3 - 4$

step 2 - solve the exponent

$(3)^3 - 4$

$27 - 4$

step 3 - subtract

$27 - 4$

$23$

therefore, the value of the expression is 23.

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PLEASE HELP ASAP!!!!!!

Natali5045456 [20]

Answer:

13.60 See the note below.

Step-by-step explanation:

Remark

This is just the reverse of the question you just did. This time you are trying to solve for c

Givens

a = 8
b = 11
c = ??

Solution

c^2 = a^2 + b^2 Substitute the givens.

c^2 = 8^2 + 11^2 Expand

c^2 = 64 + 121 Combine the right side by adding

c^2 = 185 Take the square root of both sides.

sqrt(c^2) = sqrt(185) Complete the operation

c = 13.601 Round to the nearest 1/100 th

c = 13.60 Note: the zero must be there or the answer does not show the nearest 1/100 th

8 0

3 years ago

The ratio of a triangle is 2:3:4 the shortest side is 15 inches what is the perimeter

hjlf

The perimeter is the sum of the side lengths, or x+y+z. The perimeter is 67.5 inches.

7 0

3 years ago

The eagles had a record of 16 wins and 12 loses. What was the ratio of wins to losses?

nata0808 [166]

Answer:

16/12 or 4/3

Math

6 0

2 years ago

Giovanni purchased 25tickets to an airshow. the cost of an adult's ticket is $14 and the child's ticket is $8. if the total cost

Masteriza [31]

Giovanni purchased 20 adult tickets and 5 child's tickets.

Step-by-step explanation:

Let,

x = Adult tickets

y = Child's tickets

According to given statement;

x+y=25 Eqn 1

One adult ticket costs $14 and one child ticket costs $8, therefore,

14x+8y=320 Eqn 2

$Multiplying\ Eqn\ 1\ by\ 8\\8(x+y=25)\\8x+8y=200\ Eqn\ 3\\Subtracting\ Eqn\ 3\ from\ Eqn\ 2\\(14x+8y)-(8x+8y)=320-200\\14x+8y-8x-8y=120\\6x=120\\Dividing\ both\ sides\ by\ 6\\\frac{6x}{6}=\frac{120}{6}\\x=20$

Putting value of x in Eqn 1;

$20+y=25\\y=25-20\\y=5$

Giovanni purchased 20 adult tickets and 5 child's tickets.

Keywords: Linear equations, Addition

Learn more about linear equations at:

#LearnwithBrainly

6 0

3 years ago

Cual es el resultado?/ who is the answer? -m+4-(-m)=

Debora [2.8K]

Answer:

$-m+4-(-m) = -m+4+m \\ = 4$

8 0

2 years ago