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soldier1979 [14.2K]
3 years ago
7

Ilus

Mathematics
1 answer:
geniusboy [140]3 years ago
8 0

Answer:

<h2>         \bold{B.\quad \ y^3-\dfrac R2}</h2>

Step-by-step explanation:

"half of R" it is:   \dfrac R2

"y cubed" it is:   y^3

Therefore, half of R subtracted from y cubed is:  y^3-\dfrac R2

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0.5x-7= 0.3 solve the equation<br><br><br><br><br>​
Lena [83]

Answer:

<h3>\boxed{ \bold{ \boxed{ \sf{x = 14.6}}}}</h3>

Step-by-step explanation:

\sf{0.5x - 7 = 0.3}

Move 7 to right hand side and change it's sign

⇒\sf{0.5x = 0.3 + 7}

Add the numbers

⇒\sf{0.5x = 7.3}

Divide both sides of the equation by 0.5

⇒\sf{ \frac{0.5x}{0.5}  =  \frac{7.3}{0.5} }

Calculate

⇒\sf{x = 14.6}

Hope I helped!

Best regards!!

3 0
4 years ago
Sam wants to buy 8 pencils and 6 pens, which cost a total of $8.50. He realizes he doesn't have enough cash and instead takes on
Brums [2.3K]
Let x be the price of each pen and y be the price of each pencil. From the given, the equations that are described are,
                            6x + 8y = 8.50
                             4x + 4y = 5
Solving for x and y simultaneously gives an answer of x = 0.75 and y = 0.5. 

Thus, each pen costs $0.75 and each pencil costs $0.50.
8 0
3 years ago
The area (A) of a circle with a radius of r is given by the formula and its diameter (d) is given by . Arrange the equations in
ella [17]

Answer:

see explanation

Step-by-step explanation:

A = πr² ← r is the radius and r = \frac{1}{2} d ← d is the diameter

Hence

π (\frac{1}{2} d)² = A, that is

\frac{d^2\pi }{4} = A ( multiply both sides by 4 )

d²π = 4A ( divide both sides by π )

d² = \frac{4A}{\pi } ( take the square root of both sides )

d = \sqrt{\frac{4A}{\pi } }

7 0
4 years ago
(4,4) and (-2,-2) round to the nearest tenth
Oliga [24]
Both numbers are zero (0,0)
5 0
3 years ago
Can somebody help me find the slope of this line?
almond37 [142]

Answer:

the slope is 3

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
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