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2 years ago

Could someone explain things like radicals with variables that are raised to powers. plz,

1 answer:

5 0

When radicals (square roots) include variables, they are still simplified the same way. We just have to work with variables as well as numbers

1) Factor the radicand (the numbers/variables inside the square root). Factor the number into its prime factors and expand the variable(s).

2) Bring any factor listed twice in the radicand to the outside

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Is the relation a function 5,8 7,9 7,5 10,8

Tatiana [17]

No because the number 7 repeats no x-values can repeat.

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2 years ago

8 ft<br> Find the area of the figure.<br> The area is<br> square feet<br> Help me

sweet [91]

Answer:

Step-by-step explanation:

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2 years ago

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What is the solution to the inequality x2 < 16 – 6x?

zaharov [31]

Answer:

Step-by-step explanation:

2x < 16 - 6x

Bring the variables to one side

2x < 16 - 6x

+6x +6x

8x < 16

Divide both sides by the coefficient

8x/8 < 16?8

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2 years ago

A rectangular plot of farmland will be bounded on one side by a river and on the other three sides by a single-strand electric f

likoan [24]

Step-by-step explanation:

Let x be the length and y be the width of the rectangular plot.

The plot is bounded on one side by a river and on the other three sides by a single-strand electric fence. It means,

x+2y = 1500

x = 1500 - 2y ....(1)

We know that the area of a rectangular plot is given by :

A = xy ....(2)

Put the value of x from equation (1) in (2)

$A=(1500-2y)y\\\\A=1500y-2y^2$ .....(3)

For largest area, differentiate above area equation wrt y.

$\dfrac{dA}{dy}=\dfrac{d}{dy}(1500y-2y^2)\\\\=1500-4y\\\\\text{Put}\ \dfrac{dA}{dy}=0\\\\1500-4y=0\\\\y=\dfrac{1500}{4}\\\\=375$

Put the value of y in equation (1).

x = 1500-2(375)

= 750 m

Put the value of y in equation (3).

$A =1500(375)-2(375)^2\\A=281250\ m^2$

Hence, the largest area is 281250 m² and its dimensions are 750 m and 375 m.

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3 years ago

Find the percent of decrease from 12 home runs to 9 home runs. I need this FAST!

bearhunter [10]

Answer:

75%

Step-by-step explanation:

there are 4 3s in 12 and 9 is 3 of those 3s so 75%

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2 years ago