Brainliest and 40 points please help

Answers

Answer 1

Answer: x= (−7/6) + (1/6)√13 or x= (−7/6) + (−1/6)√13

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What's the circumference of a circle with a diameter of 12 ft
For 7/20, what is an equivalent fraction with a denominator of 100?
Solve 2x^2+15x-8=0 and 2x^2+8x-24=0 for x
Please help this is timedWhat is the solution to this system of equations?3.2x+0.5y = 42-1.6x-0.5y = 3.4O (4.75, 38.8)O (4.75, -22)no solutioninfinitely many solutions
1. f(x) = x + 5, f(x) = 9

Find the lengths of two segments whose sum is 45 and whose ratio is 2:3

Answers

Let the two segments be x and y
x+y=45...1
X/y = 2/3...2
From1, y=45-x
Sub this into 2
x/(45-x)=2/3
3x=90-2X
5x=90
x=18
y=45-18=27

Find a number between 364 and 384 that is both a multiple of 7 and a multiple of 3

Answers

So the least common multiple of 7 and 3 is 21

So the multiple between 364 and 384 should be a multiple of 21.
21 × 18 = 378
And the number that is between 364 and 384 and is a multiple of 7 and 3 is 378

6h+9 is greater than 51

Answers

Answer:

h > 7

Step-by-step explanation:

6h + 9 > 51

-9 -9

6h > 42

/6 /6

h > 7

Hope this helps!

Classify triangle ABC by its sides if side AB = 6x, side AC = 4x + 6 and side BC = 8x + 3. The perimeter of triangle ABC is 63. Show all your work.

Answers

Answer:

So the triangle ABC is an isosceles triangle

Step-by-step explanation:

By definition the perimeter of a triangle is equal to the sum of the lengths of its sides.

In this case we know that the perimeter is 63

The lengths of its sides depend on x.

$AB = 6x\nAC = 4x + 6\nBC = 8x + 3$

So:

$6x + 4x + 6 + 8x + 3 = 63$

Now we solve for the variable x.

$6x + 4x + 6 + 8x + 3 = 63$

$18x + 9 = 63$

$18x = 54$

$x=(54)/(18)\n\nx=3$

Therefore:

$AB = 6(3)=18\nAC = 4(3)+6=18\nBC = 8(3) + 3=27$

The triangle has two sides of equal length. The triangles that have two equal sides are the isosceles triangles.

So the triangle ABC is an isosceles triangle

If you shift the quadratic parent function f(x))=x^2right 12 units what is the equation o the new function

Answers

hmm

the question doesn't look clear

The combined land area of the countries A and B is 157,973 square kilometers. Country A is larger by 773 square kilometers. Determine the land area of each country.

Answers

The combined land areas of country A & B are 157,973 sq km. COuntry A is larger by 773 sq kn. The land area of Country A is 79,373, the land area of Country B is 78,600.

A + B = 157,973
A = B + 773

now its just a matter of subbing
(B + 773) + B = 157,973
2B + 773 = 157,973
2B = 157,973 - 773
2B = 157,200
B = 157,200/2
B = 78,600 <=== land area for country B

A = B + 773
A = 78,600 + 773
A = 79,373 <== land area for country A