PLEASE HELP! Im not very good at math

Answers

Answer 1

Answer:

Answer:

The answer provided is incorrect, the mistake is in the division between the monomials $x^{(6)/(5)}$ and $x^{(2)/(5)}$ that is equal to $x^{(4)/(5)$ not $x^3$ , because we must mantain the same base "x" and subtract the expoents that are $(6)/(5) - (2)/(5) = (4)/(5)$ .

Step-by-step explanation:

In order to simplify that question we need to multiply, divide and power monomials with the same base "x". When we multiply monomias with the same base we sum the expoents, to divide we subtract the expoents and to power them we multiply the expoents. Therefore to simplify the equations we must do:

$(\frac{x^{(2)/(5)}*x^{(4)/(5)}}{x^{(2)/(5)}})^(1)/(2)\n(\frac{x^{(6)/(5)}}{x^{(2)/(5)}})^(1)/(2)\n(x^{(4)/(5)})^(1)/(2)\nx^{(4)/(10)}\nx^{(2)/(5)}$

Answer 2

Answer:

Answer:

No the answer is incorrect.

Step-by-step explanation:

From the question given;

( $X^{(2)/(5) }$ . $X^{(4)/(5) }$ / $X^{(2)/(5) }$ )¹/²

We will start by solving the inner bracket

By the law of indices $x^(a) . x^(b) = x^(a+b)$

$X^{(2)/(5) }$ . $X^{(4)/(5) }$ = $X^{(2)/(5)+(4)/(5) } = X^{(6)/(5) }$

we will replace $X^{(2)/(5) }$ . $X^{(4)/(5) }$ by $X^{(6)/(5) }$

$X^{(2)/(5) }$ . $X^{(4)/(5) }$ by $X^{(6)/(5) }$

( $X^{(2)/(5) }$ . $X^{(4)/(5) }$ / $X^{(2)/(5) }$ )¹/² = ( $X^{(6)/(5) }$ / $X^{(2)/(5) }$ )¹/²

By the law of indices $x^(a) /x^(b) = x^(a-b)$

$X^{(6)/(5) }$ / $X^{(2)/(5) }$ = $X^{(6)/(5) - (2)/(5) }$ = $X^{(4)/(5) }$

We will replace $X^{(6)/(5) }$ / $X^{(2)/(5) }$ by $X^{(4)/(5) }$

( $X^{(6)/(5) }$ / $X^{(2)/(5) }$ )¹/² = ( $X^{(4)/(5) }$ )¹/² = $X^{(4)/(10) }$ = $X^{(2)/(5) }$

( $X^{(2)/(5) }$ . $X^{(4)/(5) }$ / $X^{(2)/(5) }$ )¹/² = $X^{(2)/(5) }$

No the answer is incorrect.

He made a mistake, because $X^{(6)/(5) }$ / $X^{(2)/(5) }$ = = $X^{(6)/(5) - (2)/(5) }$ = $X^{(4)/(5) }$ and not equal to $x^(3)$

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Last Month the electric meter reading was 7985 kWh. This month the reading was 8328 kWh. If electricity costs P3.40 per kWh,how much will I pay?

Answers

$8328kWh-7985kWh=343kWh\n\n343\ *\ 3.40=1166.20\leftarrow answer$

$8328-7985=343\n 343\cdot\pounds3.40=\pounds1166.2$

Solve 5x + 7 ≥ 2

(just putting this here since the question is too short)

Answers

1. $5x + 7 \geq 2$
2. $5x \geq -5$
3. $x \geq -1$

1. Start
2. Subtract 7 from both sides
3. Divide both sides by 5

5x + 7 ≥ 2
- 7 -7
5x ≥ -5
/5 /5
"x ≥ -1" is your final answer

A 30-30-120 isosceles triangle has two legs of length 4 units. If it is rotated around an axis that contains one leg, what is the volume of the solid of revolution?

Answers

Volume of the solid of revolution is 127.47 cubic units

What is Isosceles triangle?

An isosceles triangle is a triangle that has two sides of equal length.

What is Volume?

Volume is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface.

What is Solid of revolution?

A solid of revolution is a solid figure obtained by rotating a plane curve around some straight line that lies on the same plane

Angles of the given isosceles triangle = 30-30-120 triangle

Length of the leg = 4 units

Length of the Third side c = $\sqrt{a^(2)+b^(2)-2ab cos C }$

Where a and b are the length of the leg and C is the vertex angle

Then,

Length of the third side c= $\sqrt{4^(2)+4^(2)-2(4)(4)cos120 } =4√(3)$

It is rotated around an axis that contains one leg

Draw the figure,

From the figure we can say that we have to subtract the volume of the big cone from the volume of the small cone to find the required volume of the cone

Volume of big cone = $(1)/(3)\pi r^(2)\sqrt{l^(2).r^(2) }$

where, r is the radius and l is the slant length

r = $(4√(3) )/(2)=2√(3)$ unit

l= $4√(3)$ unit

Volume of the big cone = $(1)/(3)\pi (2√(3))^(2)\sqrt{(4√(3))^(2). (2√(3))^(2) }$ =301.59 cubic unit

Volume of small cone = $(1)/(3)\pi r^(2)\sqrt{l^(2).r^(2) }$

r = $(4√(3) )/(2)=2√(3)$ unit

l= 4 unit

Volume of the small cone = $(1)/(3)\pi (2√(3))^(2)\sqrt{(4^(2) . (2√(3))^(2) }$ =174.12 cubic unit

Volume of required region = Volume of big cone - Volume of small cone

=301.59 - 174.12

=127.47 cubic unit

Hence, volume of the solid of revolution is 127.47 cubic unit

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i think i know how to solve it but i would take a couple of minutes

The marching band ordered 19 pizzas for a party. Each pizza had 6 slices. Felipe are 7 of the slices. How many were left for the rest of the band?

Answers

Answer:

107

Step-by-step explanation:

multiply 19 times 6 minus 7 because Felipe ate 7

Final answer:

The marching band has 107 pizza slices left after Felipe ate 7 slices from a total of 114 slices obtained from 19 pizzas.

Explanation:

This math problem requires to determine the number of pizza slices left after Felipe ate some. To start, we multiply the total number of pizzas (19) by the number of slices each pizza has (6). This gives us a total of 114 slices. Felipe ate 7 slices. Subtracting these from the total, we get 107 slices left for the rest of the band.

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Which number is not a composite number 2 9 15 21

Answers

Number which is not a composite number is given by the equation A = 2

What are Factors of a Number?

Numbers that divide an original number evenly or precisely are known as its factors. A factor is a whole number that can divide a larger number in two equal parts. A factor is a number that divides another number, leaving no remainder

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the set of number be in set C = { 2 , 9 , 15 , 21 }

And , composite number is a positive integer that can be formed by multiplying two smaller positive integers

So , the factors of 9 = 1 , 3 , 9

The factors of 15 = 1 , 3 , 5 , 15

The factors of 21 = 1 , 3 , 7 , 21

And , the factors of 2 are 1 and the number 2 itself

Therefore , the value of A = 2

Hence , the number 2 is a composite number

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2 is not a composite number but it is actually a prime number because it is only divisible by one and itself and only composite numbers have more than just 2 factors so since 2 only has 2 factors, it is a prime number.

!!PLEASE ANSWER ASAP!!this table shows the values for functions f(x) and g(x) .

what is the solution to f(x) and g(x) ?

select each correct answer.

Answers

X=0 is the answer. When x=0, BOTH functions =1, so f(x)=g(x) when x=0.

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I ONLY need HELP on number 3 what does it mean for me to do?? Thank You All in Advance!!!!!!

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