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Usimov [2.4K]
3 years ago
14

Determine if the following triangle is a right Triangle. Write your answer, claim, as a

Mathematics
1 answer:
Reptile [31]3 years ago
7 0

Answer:

Step-by-step explanation:

Check if the lengths of the sides follows the Pythagorean theorem.

9² + 12² ≟ 15²

81 + 144 ≟ 225

225 = 225

Triangle ABC is a right triangle.

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a construction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut w
lapo4ka [179]

Dividing a whole number and an improper fraction seems tricky, but it just has one or two more steps than the normal process.  First, convert the whole number "9" into a fraction by giving it a denominator of "1".  It should look like 9/1.  Now that both numbers are converted into like formats (improper fractions), you should have 9/1 divided by 5/3.

Second, flip 5/3 over into 3/5 - this is the "reciprocal". Now you have 9/1 divided by 3/5.  It's just a matter of multiplying across the math sentence.  Multiply the numerators (9x3) and the denominators (1 x 5).  Your new fraction should be 27/5.  This is your answer in the improper fraction format.

You can create other formats depending on the expected answer.  For a mixed number, "divide your fraction UP" (27 divided by 5) which gives you 5 and 2/5.  This can be further converted into 5.4 if you need your answer in decimal form.


4 0
3 years ago
Ms. Day went shopping last week and spent a total of $120. Blankets cost her $16 while pillows cost her $10. Altogether, she bou
Crazy boy [7]

Answer:

Ms. Day bought 5 blankets and 4 pillows.

Step-by-step explanation:

Let x denotes number of blankets and y denotes number of pillows.

Blankets cost her $16 while pillows cost her $10 and Ms. Day spent a total of $120.

16x+10y=120

Divide this equation by 2.

8x+5y=60\,\,...(i)

Ms. Day bought 9 items.

x+y=9

Multiply this equation by 5.

5x+5y=45\,\,...(ii)

Subtract (ii) from (i)

3x=15\\x=5

Put x=5 in x+y=9

5+y=9\\y=9-5\\y=4

Therefore,

Ms. Day bought 5 blankets and 4 pillows.

4 0
3 years ago
I need help with this question please!
otez555 [7]

Answer:

B 3.78 seconds

Step-by-step explanation:

On the graph, the line ends when it hits (0,3.78) This means that the object was in the air for 3.78 seconds before hitting the ground (0 height)

4 0
3 years ago
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9+a/6=8 need help is
tensa zangetsu [6.8K]
A = -6

order of operations does division first, but you have to know that you must add -1 to 9 in order to get 8. Therefore, you must have a negative number over 6 and it has to be -6 in order for that negative number to be -1
4 0
3 years ago
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Find x, the answer is 5 but how do I get it?
dolphi86 [110]

\red{ \rule{40pt}{555555pt}}

6 0
3 years ago
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