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3 years ago

Please help !! is 15^2 + 32^2 = 36^2 a right triangle ?

Mathematics

2 answers:

brilliants [131]3 years ago

7 0

Answer:

Step-by-step explanation:

Dvinal [7]3 years ago

5 0

Answer:no

Step-by-step explanation:

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Can somebody prove this mathmatical induction?

Flauer [41]

Answer:

See explanation

Step-by-step explanation:

1 step:

n=1, then

$\sum \limits_{j=1}^1 2^j=2^1=2\\ \\2(2^1-1)=2(2-1)=2\cdot 1=2$

So, for j=1 this statement is true

2 step:

Assume that for n=k the following statement is true

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

3 step:

Check for n=k+1 whether the statement

$\sum \limits_{j=1}^{k+1}2^j=2(2^{k+1}-1)$

is true.

Start with the left side:

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}\ \ (\ast)$

According to the 2nd step,

$\sum \limits_{j=1}^k2^j=2(2^k-1)$

Substitute it into the $\ast$

$\sum \limits _{j=1}^{k+1}2^j=\sum \limits _{j=1}^k2^j+2^{k+1}=2(2^k-1)+2^{k+1}=2^{k+1}-2+2^{k+1}=2\cdot 2^{k+1}-2=2^{k+2}-2=2(2^{k+1}-1)$

So, you have proved the initial statement

4 0

3 years ago

Please help me with this question!!

choli [55]

Answer:

0.75

Step-by-step explanation:

there is 1000 grams in 1 kilogram so I divided 750 by 1000 to get 0.75.

6 0

2 years ago

PLEASE HELP WITH MATH! 100 PTS

timurjin [86]

Answer:

1.) step No.3 x(2x-5) - (2x-5)

2.) 16 +28i-28i - 49i²

but we know i² = -1

the expression becomes

16 + 49

= 66

6 0

2 years ago

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5TH GRADE LEVEL QUESTION. PLEASE LOOK AT PHOTO AND ANSWER AND PLEASE LIST STEP BY 1,2,3 GIVING BRAINLIEST.

Andrej [43]

Answer:

Step 1: 3*4=12

Step 2: 12+3=15

Step 3: 15-10=5

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

And items are for $40 plus sales tax on the item is 8% what is the sales tax on the total cost

Setler79 [48]

Answer:

43.20 for the total cost of the item

6 0

2 years ago