All categories

2 years ago

Find f(343) & f(-64) .

Mathematics

1 answer:

Alexus [3.1K]2 years ago

4 0

f(343) = ?

$\sqrt[3]{343} = 7$

7 + 4 = 11

f(-64) = ?

$\sqrt[3]{ - 64} = - 4$

-4 + 4 = 0

You might be interested in

X to the fourth power minus Y to the fourth power

storchak [24]

Answer:

$(x - y) \times (x + y)( {x }^{2} + {y}^{2} )$

Step-by-step explanation:

$(x ^{2} - y ^{2} ) \times (x ^{2} + y ^{2} )$

$({x} - y) \times (x + y) \times {x }^{2} + y ^{2} )$

8 0

3 years ago

3) In the Pacific Ocean, a seal was swimming 110 feet below sea level. As he was searching for food, he dove

Reptile [31]

Answer:

158 feet below sea level

Step-by-step explanation:

110 + 48 = 158

So 158 was the seal's final depth below sea level

8 0

3 years ago

two friends went to a restaurant and ordered one plain pizza and two sodas. their bill totaled $15.95. later that day, five frie

oksano4ka [1.4K]

X= cost per pizza
y= cost per soda

1ST VISIT TO RESTAURANT
x + 2y= $15.95

2ND VISIT TO RESTAURANT
3x + 5y= $45.90

STEP 1
multiply equation from 1st visit by -3. Will be able to solve by elimination method in step 2.

-3(x + 2y)= -3(15.95)
multiply -3 by each term

(-3 * x) + (-3 * 2y)= (-3 * 15.95)

-3x - 6y= -47.85

STEP 2
add 2nd visit equation to new 1st
visit equation in step 1.

3x + 5y= 45.90
-3x - 6y= -47.85
x term will cancel out; solve for y

-y= -1.95
divide both sides by -1

y= $1.95 per soda

STEP 3
substitute y value in either original equation to solve for x

x + 2y= $15.95

x + (2 * 1.95)= 15.95
multiple in parentheses

x + 3.90= 15.95
subtract 3.90 from both sides

x= $12.05 per pizza

CHECK
3x + 5y= $45.90
3(12.05) + 5(1.95)= 45.90
36.15 + 9.75= 45.90
45.90= 45.90

ANSWER: Each pizza costs $12.05 and each soda costs $1.95.

Hope this helps! :)

4 0

3 years ago

What value of x is the solution to the equation −3/2x−3/4=−1/5 ?

Ray Of Light [21]

Answer:

$\Longrightarrow: \boxed{\sf{x=-\dfrac{11}{30} }}$

Step-by-step explanation:

Isolate the term of x from one side of the equation.

First, add by 3/4 from both sides.

$\sf{-\dfrac{3}{2}x-\dfrac{3}{4}+\dfrac{3}{4}=-\dfrac{1}{5}+\dfrac{3}{4} }$

Solve.

⇒ = -3/2x=11/20

Then, you multiply by 2 from both sides.

2(-3/2x)=11*2/20

Solve.

11*2/20

11*2=22

22/20

Common factor of 2.

11/10

-3x=11/10

Divide by -3 from both sides.

$\sf{\dfrac{-3x}{-3}=\dfrac{\dfrac{11}{10}}{-3}}$

Solve.

$\Longrightarrow:\boxed{\sf{x=-\dfrac{11}{30} }}$

Therefore, the correct answer is D. x=-11/30.

I hope this helps! Let me know if you have any questions.

6 0

3 years ago

What is the length of r and t ?

vredina [299]

Correct answer is going to be D

7 0

3 years ago