Help please this has to be done today for me to get a 100

Mathematics

1 answer:

sukhopar [10]2 years ago

6 0

Answer:

135/4

Step-by-step explanation:

That's 45 divided by 4/3, which is 45 times 3/4, which is 135/4

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How do I solve for x

Alchen [17]

Greetings!

To find the length of any side of a right triangle, you can use the Pythagorean Thereom. It states that the squares of two sides are equal to the square of the hypotenuse:
$a^2+b^2=c^2$

Input the information from the diagram into the formula:
$(x)^2+(x+7)^2=(13)^2$

Expand each term:
$(x)^2+(x+7)^2=(13)^2$

$x^2+((x+7)(x+7))=169$

$x^2+(x(x+7)+7(x+7))=169$

$x^2+x^2+7x+7x+49=169$

Combine like terms:
$2x^2+14x+49=169$

Add -169 to both sides:
$(2x^2+14x+49)+(-169)=(169)+(-169)$

$2x^2+14x-120=0$

Factor out the Common Term (2):
$2(x^2+7x-60)=0$

Factor the Complex Trinomial:
$2(x^2-5x+12x-60)=0$

$2(x(x-5)+12(x-5))=0$

$2(x-5)(x+12)=0$

Set Factors to equal 0:
$x-5=0$

$x=5$

or

$x+12=0$

$x=-12$

However, since we are solving for the side length, the only possible answer is 5 (a shape can't have a side with a negative length.)

The Solution Is:
$\boxed{x=5}$

I hope this helped!
-Benjamin

6 0

2 years ago

Please help:) I'll report you if you steal points :(

Crank

Yeah y=9

hope this helped even tho I’m kinda late haha

5 0

2 years ago

Pls help it is due today

MAXImum [283]

Answer: 4.5

Step-by-step explanation:

I hope this helps I haven’t done dot plots since 6th grade which was 2 years ago so I’m not confident in my answer