MATHEMATICS HIGH SCHOOL

Which of the following is not a layer of the Earth? a Inner core b Other core c Mantle d Crust

Answers

Answer 1

Answer:

Answer:

all of them are the layer of earth

Step-by-step explanation:

if it is about spelling its b, because there is no "other core" instead there is outer core

Answer 2

Answer: Other core is not one, if you mean outer core then all of them are layers

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When Legs jumps 2 times and takes 13 steps forward, he lands in the same place as when he jumps 4 times and takes 5 steps backward.• One jump equals how many steps?

Answers

Answer:

9 steps

Step-by-step explanation:

Let $x$ be the number of jumps

and $y$ be the number of steps

So the first case

$2x+13y$

Second case

$4x-5y$

Both cover equal distances so

$2x+13y=4x-5y$

$\Rightarrow 2x-4x=-5y-13y$

$\Rightarrow 2x=18y$

$\Rightarrow x=9y$

So, one jumps is 9 steps.

4 divided 5 2/3 please and thank you

Answers

Answer:

1.41

Step-by-step explanation:

you divide them in a calculator or Google and get the answer. :)

Answer:

Step-by-step explanation:

For example, the reciprocal of ¾ is 4/3.

Division of Fractions

Find the reciprocal of 3 ¾

The reciprocal of 3 ¾ is 4/15.

Division of Fractions Reciprocal

I. Division of a fraction by a whole number:

For example:

(i) Divide 3/5 by 12

Solution:

3/5 ÷ 12

= 3/5 ÷ 12/1

= 3/5 × 1/12

= (3 × 1)/(5 × 12)

= 3/60

= 1/20

Step I: Find the reciprocal of the whole number and multiply with the fractional number as usual.

Step II: Express the product in its lowest terms.

(ii) Solve: 5/7 ÷ 10

= 5/7 ÷ 10/1

= 5/7 × 1/10

= (5 × 1)/(7 × 10)

= 5/70

Step I: Find the reciprocal of the whole number and multiply with the fractional number as usual.

Step II: Express the product in its lowest terms.

II. Division of a fractional number by a fractional number:

For example:

(i) Divide 7/8 by 1/5

Solution:

7/8 ÷ 1/5

= 7/8 × 5/1

= (7 × 5)/(8 × 1)

= 35/8

= 4 3/8

Step I: Find reciprocal of 1/5.

Step II: Multiply 7/8 by it.

Step III: Express the product in its simplest form.

(ii) Divide: 5/9 ÷ 10/18

Solution:

5/9 ÷ 10/18

= 5/9 × 18/10

= (5 × 18)/(9 × 10)

= 90/90

= 1

Step I: Find reciprocal of 1/5.

Step II: Multiply 7/8 by it.

Step III: Express the product in its simplest form.

Solve for x
log(x–4)+log(x+3)=2logx

Answers

$D:x-4>0 \wedge x+3>0 \wedge x>0\nD:x>4 \wedge x>-3 \wedge x>0\nD:x>4\n\n\log(x-4)+\log(x+3)=2\log x\n\log(x-4)(x+3)=\log x^2\n(x-4)(x+3)=x^2\nx^2+3x-4x-12=x^2\n-x=12\nx=-12\n-12\not\in D\n\Downarrow\n\boxed{x\in\emptyset}$

Which type of triangle contains its centroid?A. right
B. acute
C. obtuse
D. all of the above

Answers

The correct answer is , B ) acute

The answer is D all of the above

What is the answer 3.5r=3(4+.5r)?

Answers

$3.5r=3(4+0.5r)\n\n3.5r=3*4+3*0.5r\n\n3.5r=12+1.5r\ \ \ \ \ |substract\ 1.5r\ from\ both\ sides\n\n2r=12\ \ \ \ \ \ |divide\ both\ sides\ by\ 2\n\nr=6$

The 'answer' is the number that 'r' must be in order to make the equation a true statement. There's only one number that can do it. Here's how to find it:

Copy the equation: 3.5r = 3(4 + .5r)

Expand the right side: 3.5r = 12 + 1.5r

Subtract 1.5r from each side: 2r = 12

Divide each side by 2 : r = 6

4/3v^2x -5/6vx^3 what is this answer for algebra

Answers

$(4)/(3) v^2x - (5)/(6) vx^3$

$(4)/(3) v^2x + (-5)/(6) vx^3$

Answer: $(-5)/(6) vx^3 + (4)/(3) v^2x$

$(4)/(3v^(2)x) - (5)/(6vx^(3)) = (5(3v^(2)x))/((3v^(2)x)(6vx^(3))) - (4(6vx^(3)))/((3v^(2)x)(6vx^(3))) = (15v^(2)x)/(18v^(3)x^(4)) - (24vx^(3))/(18v^(3)x^(4)) = (15v^(2)x - 24vx^(3))/(18v^3x^(4)) = (5v)/(6x^(2)) - (4)/(3v^(2)x)$

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