The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse? A. 13.23 centimeters B. 25 centimeters C. 5.92 centimeters D. 35 centimeters

Answers

Answer 1

Answer: $a;b-legs\nc-hyperotenuse\n\nPythagoras\ theorem:\ \ a^2+b^2=c^2\n\nsubstitute:\n\nc^2=15^2+20^2\n\nc^2=225+400\n\nc^2=625\n\nc=√(625)\n\nc=25\ (cm)\n\n\nAnswer:B$

Answer 2

Answer: The answer is B
15^2 + 20^2= 625
And 625 under square rout = 25

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A rabbit weighs 4 pounds and 6 ounces how many ounces does the rabbit weigh

Answers

A pound is 16 ounces so the rabbit weighs 16 x 4 = 64 plus an additional six ounces, or 70 ounces

1 pound = 16 ounces
16×4 = 64
64 ounces plus the the other ounces will be 70 ounces

X-1+x(x-1)=3(x-1)

Please solve for x

Answers

Factor out x-1.

... (x-1)(1 + x) = 3(x-1)

... (x-1)(x +1 -3) = 0 . . . . subtract the right side

... (x -1)(x -2) = 0 . . . . . . simplify

... x = 1 . . . or . . . x = 2 . . . . use the zero-product rule*

_____

* A product is only zero when one or more of its factors is zero.

x-1+x(x-1)=3(x-1)

x^2-1=3x-3

x^2-3x+2=0

Factor: (x-1)(x-2)=0

Set factors equal to 0:

x-1=0 and x-2=0

x=1 or x=2

10*(80+5)6-1Wow im so confused because there is no + / * or - next to the 6 please help 15 points

Answers

Parenthesis
Exponent
Multiply
Divide
Add
Subtract
First Parenthesis
So we have 80+5=85.
Now let's rewrite the problem. 10*85*6-1.
I put the * sign because when you have a number like this: (10+5)1 It means you will subtract it by the number outside of the parenthesis. Now we need to move onto multiplication because there are no exponents so we skip that.
Lets multiply from left to right.
So we have 10*85*6-1 so lets start with 10*85=850
Now we have
850*6-1 So let's do 850*6=5100
Now 5100-1=5099
So your answer is 5099

I have no idea how ti so this one can sombody help do this one please it is hard

Answers

Not as hard as you think.
Just multiply all the prime factors together.

just multiply 5*2*2*7, and you will get 140.

MathematicalUse Number Sense Duane and Mick are savingtheir money to build a tree house. Duane adds $5 to their piggybank every other week. Mick adds $2 every week. So far they havesaved $45. How many weeks have they been saving their money?

Answers

assuming they start saving at 0 dollars

45=total=duanesavings+micksavings
duanesavings=confusing, I will explain
mick savings =amount saves per week times number of weeks

duane saves 5 dollars every other week, aka 2.5 dollars per 1 week
DS=2.5w
MS=2w

since they save at same time and at that week, when the weeks are equal (w=w), 45 it total

DS+MS=45
2.5w+2w=45
4.5w=45
divide by 4.5 both sides
w=10

10 weeks

The linear equation y = -9 will be parallel to the x-axis.

True
False

Answers

Step-by-step explanation:

y=-9 paralel x-axis

True

y=-9↓↓

x----------------------------

-9--------------------------

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