Please help, the problem is bellow
Please help, the problem is bellow - 1

Answers

Answer 1
Answer: 4x + 1.25y = 500. Hope this helps

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Holly say 4.131131113 is a rational number which of the following best describes whether holly is correct and why

Answers

Answer: Holy is not correct

Step-by-step explanation:

Rational numbers is a decimal number must terminate or repeat. However in this case this number is irational. This is because there is a continues pattern of 1's and 3's

Answer:

holly is not correct

Step-by-step explanation:

Rational numbers is a decimal number must terminate or repeat. However in this case this number is irational. This is because there is a continues pattern of 1's and 3's

Could you prove this trignometry identity? It's
sin x cot x =cos x

Answers

Cotx can also be written as cosx/sinx. So sinx × cosx/sinx = cosx.

Answer:

sinx ×cosx/sinx

sinx gets cancelled

cosx

Can some one please explain to me how to do these three problems so that I can do the rest of my home work. THANK YOU

Answers

1.4²+b²=3.1²
1.96+b²=9.61
b²=7.65
b=√7.65
b=2.8(rounded to the nearest tenth)

5²+12²=C²
25+144=c²
169=c²
c=√169
c=13cm

6²+3²=c²
36+9=c²
c²=45
c=√45
c=6.7ft ( rounded to the nearest tenth)
a² + b² = c²
1.4² + b² = 3.1²
1.96 + b² = 9.67
-1.96         -1.96
           b² = 7.71
            b ≈ 2.78
-----------------------------------------------------------------------------------------------
a² + b² = c²
5² + 12² = c²
25 + 144 = c²
169 = c²
13 = c
-----------------------------------------------------------------------------------------------
a² + b² = c²
6² + 3² = c²
36 + 9 = c²
45 = c²
6.71 ≈ c

If one leg of a right triangle measures 3 centimeters and the other leg measures 6 centimeters, what is the length of the hypotenuse in centimeters?

Answers

Pythagorean theorem- a²+b²=c²
so a= 3 b=6 c=hypotenuse
3²+6²=c²
9+36=45
square root of 45 is 6.708203932 so 7.1 (1dp) is the answer

The length of a rectangular poster is 3 inches less than the width. The perimeter is 38 inches. Find the length

Answers

Answer: Breadth = 11 ; Length = 8

Step-by-step explanation:

Let the width of the rectangle be 'x'

Length of the rectangle = x - 3

Perimeter of the rectangle = 38

Perimeter of rectangle formula = 2 ( length + breadth )

Substitute:

2 ( x + x-3 ) = 38

2 ( 2x - 3 ) = 38

2x - 3 = 19

2x = 19 + 3

2x = 22

x = 11

Therefore, the breadth  = 11

Length = x-3 = 11 - 3 = 8

To check, find the perimeter:

2( 11 + 8)

= 2 ( 19 )

= 38.

We get the same perimeter so the answer is correct.

Answer:

length =8

Step-by-step explanation:

x= width

x-3(3 inches less than the width)

x+x-3+x+x-3=38

4x-6=33. add 6 on both sides

4x=44 divide by 4

x=11. plug 11 in for x because 11 is the width. in the equation x-3. (x=width) 11-3= 8. The length is 8.

What is the answer for the picture #26

Answers


Oh you're so close !

Just look again at #22, right above it. 
Your answer to #22 is correct.
Think hard again about #22.
You'll see how it can help you solve #26, completely on your own.


the answer is 1/13 ². Because if you divide 1/169 and 1/13, then you get 1/13. With that being said, if you multiply 1/13 and 1/13, then you get 1/169. And of course the symbol ( ² ) means squared so you multiply that number he (² ) is over twice. So like 3², 3*3=9.


Helpful???