MATHEMATICS HIGH SCHOOL

Please help me ASAP!! Will give Brainliest!!

Answers

Answer 1

Answer:

Answer:

A and B are correct AKA C

Step-by-step explanation:

The total of the two shorter lengths should be more than the longest

a)20+21>22

b)8+80>80

c)4+40<50

d)3+3=6

Therefore a and b are correct

Answer 2

Answer: First one is the answer

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A number is multiplied by 7. Then 29 is added to the product. This sum is then divided by 2. The answer is 46. What was the original number? Student's solution - The answer was 46. If this was the result of dividing by 2, the number at this point was 92. If this was the result of adding 29, the number at this point was 63. If this was the result of multiplying by 7, the original number was 9. Solve this problem using a similar strategy. A number is multiplied by 10. Then 32 is added to the product. This sum is then divided by 4. The answer is 28. What was the original number?
PLEASE ANSWER QUICKLY... Liam and Michelle split the cost of supplies to build some trebuchets. The expression for the cost that each must pay to make t (trebuchets) is (2.5t+2)+(1.8t+3) as the numerator and 2 as the denominator. What is the cost for each person if t=2

Identify the coefficient of 2xy3

Answers

the coefficient is 2

2

The coefficient always comes before any unknowns, so for 2xy3, 2 is the coefficient.

Simplify the rational expression. State any restrictions on the variablen^4-10n^2+24/ n^4-9n^2+18

Answers

Answer:

The simplified form is $=((n-2)(n+2))/((n-\sqrt3)(n+\sqrt3))$

The variable n can not be equals to $\pm\sqrt3$ as for these value denominator equals to zero which becomes an indeterminate form.

Step-by-step explanation:

we have to simplify the rational expression and state the restrictions on the variable.

$(n^4-10n^2+24)/(n^4-9n^2+18)$

We can now see that both the numerator and denominator are quadratic trinomials in $n^2.\$

We split the middle terms as follows;

$(n^4-10n^2+24)/(n^4-9n^2+18)=(n^4-6n^2-4n^2+24)/(n^4-3n^2-6n^2+18)$

$=(n^2(n^2-6)-4(n^2-6))/(n^2(n^2-3)-6(n^2-3))$

$=((n^2-4)(n^2-6))/((n^2-6)(n^2-3))$

$=((n-2)(n+2))/((n-\sqrt3)(n+\sqrt3))$

which is the simplified form of given expression.

The variable n can not be equals to $\pm\sqrt3$ as for these value denominator equals to zero which becomes an indeterminate form.

The answer to the question is n^2-4/n^2-3 n ≠±√6±√3

How many triangles exist with the given side lengths?12 in, 15 in, 18 in
A) No triangle exists with the given side lengths.
B) Exactly one unique triangle exists with the given side lengths.
C) More than one triangle exists with the given side lengths.

Answers

According to triangle inequality theorem, “The sum of the length of two sides of a triangle should be greater than the third side”. In order to verify the mentioned theorem, some calculations are performed below.

12 + 15 > 18

15 + 18 > 12

12 + 18 > 15

As the triangle inequality theorem satisfied, so there is only one triangle possible with the given sides length. No more than one triangle is possible, because the angles are not given, and the sides length are fixed.

So option “B” is correct.

Answer:

it is b

Step-by-step explanation:

Nick is now seven times as old as Harry. In 6 years, Nick will be five times as old as Harry. How old will Harry be in 6 years?If x represents Harry's age now, then which of the following equations could be used to solve the problem?

Answers

i think its 7x+6=5(x+6) if its wrong then me so sorry. its the answer i chose tho

Let x represent Harry's age now, and Nick's age now is 7x. [t]
In 6 years, Harry is x + 6 , and it is given that Nick's age will be 5(x+6). [t+6]

Combining [t] and [t+6], 7x + 6 = 5(x+6).
So the formula 7x + 6 = 5(x+6) represents the problem.

And x = 12 , so Harry's age in 6 years will be x +6 or 18 years .

I hope this helps!

How do you find the radius when the circumference is given?

Answers

Step-by-step explanation:

r = c/2π

The radius of a circle is half of the circumference. So for example if the circumference is 10, the radius would be 5.

How many ways can the letters of the word ORGANISM be arranged so the third letter is G?

Answers

$7!=5040$
..........

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