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uranmaximum [27]
2 years ago
5

Please help, will mark!!

Mathematics
1 answer:
Temka [501]2 years ago
7 0

Answer:

c = 5

Step-by-step explanation:

The Pythagorean theorem states that in every right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the respective lengths of the legs. It is the best-known proposition among those that have their own name in mathematics.

Pythagoras theorem

In every right triangle the square of the hypotenuse is equal to the sum of the squares of the legs.

If in a right triangle there are legs of length a and b the measure of the hypotenuse is c then the following relation is fulfilled:

a^{2} +b^{2} =c^{2}

With a = 3 and b = 4

c=\sqrt{3^{2} +4^{2}} =\sqrt{9+16} =\sqrt{25} \\c=5

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Ms. Alders has $50 to buy prizes for the treasure box in her classroom. She bought 12 packages of stickers, 8 boxes of pencils,
IceJOKER [234]
The answer is $10

if you add up the total price for each of the items it totals to $40, she has $50 so $50-$40=$10

6 0
2 years ago
Can someone please help me with this question?
Alinara [238K]

Answer:

im pretty sure its a

Step-by-step explanation:

because the water level is pretty much the same even when theres more swimmers

4 0
2 years ago
Cupro-nickel coins are minted by mixing copper and nichel in the ratio 4:1
Softa [21]
Copper:   Nickel =  4:1

a) How much copper needed for 20 kg nickel
                 C:N = 4: 1 
                 C:20 = 4:1

C/20 = 4/1       Cross Multiply
C*1 = 4*20
C = 80     

80kg Copper would be needed.

b) How much Nickel would be needed for 20 kg of Copper
                 C:N = 4: 1 
                 20:N = 4:1

20/N = 4/1       Cross Multiply
4*N = 1*20
4N = 20   Divide both sides by N.  

N = 20/4 = 5

5kg Nickel would be needed.
8 0
3 years ago
A particular paper included the accompanying data on the tar level of cigarettes smoked for a sample of male smokers who subsequ
Dafna1 [17]

Answer:

Check the explanation

Step-by-step explanation:

H_0:proportion of male smoker lung deaths is same for the four given tar level categories.

H_1:proportion of male smoker lung deaths is not the same for the four given tar level categories.

Expected frequency=1177/4=294.25

Tar level     Observed Freq.(O)        Expected Freq.(E)         (O-E)^2/E

0-7                         107                                   294.25                120.435

8-14                        375                                  294.25                5.643

15-21                       553                                 294.25                 227.533

>=22                       183                                  294.25                 42.061

Total=                    1177                                  1177                      395.673

Total chi square score=395.673

df=4-1=3

p-value=CHIDIST(395.673,3)<0.001

p-value<0.001,Reject null hypothesis.

There is sufficient evidence that the proportion of male smoker lung deaths is not the same for the four given tar level categories.

5 0
3 years ago
Please help asap I’m so lost
Simora [160]
what are the other answers
4 0
2 years ago
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