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HACTEHA [7]
3 years ago
14

Find the length of the base 12m is wall. 13m is Ladder . then ground.​

Mathematics
1 answer:
Aleks [24]3 years ago
5 0

Answer:

5m

Use the Pythagorean theorem: base =sqrt(13^2-12^2)= sqrt(25) =5

sqrt Is Square root btw

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Tile costs $28 per square meter. how much will it cost to cover the counter top with new tile?( 4.36 square meters)
marta [7]
Tile costs $28 per square meter. how much will it cost to cover the counter top with new tile?( 4.36 square meters)

28 x 4.36 = $122.08
5 0
3 years ago
What is the constant of variation for the quadratic variation? 0.1y = 3x2
svet-max [94.6K]

Answer:

The constant of variation for the given quadratic equation is, 30

Step-by-step explanation:

One of the form of a quadratic equation is written as:

y = kx^2     ....[1]

where k is the coefficient and for this case the constant of variation.

In order to obtain the answer for the given equation, we write the given equation to the form above.

0.1y=3x^2  or

y=(\frac{3}{0.1})x^2 or

y=30x^2

Comparing this equation with equation [1], to get the value of k;

k=30.

therefore, the  constant of variation is, 30.

6 0
3 years ago
20% of what number is equal to 2/3 of 90?
blagie [28]
Let the number be x, then

1/5 * x = 2/3 * 90

1/5 x =  60

x = 60 * 5  = 300 (answer)
7 0
3 years ago
What is the result of 6 divided by 3/8?<br> Please help I’ll give brainliest
worty [1.4K]

Answer:

16

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve the system by the substitution method.<br> x-2y = -2<br> y = - 3x + 8
aliina [53]

x-2y = -2

x-2(-3x+8)=-2

mutiply the bracket by -2

(-2)(-3x)=6x

(-2)(8)=-16

x+6x-16=-2

7x-16=-2

move -16 to the other side

sign changes from -16 to +16

7x-16+16=-2+16

7x= -2+16

7x= 14

divide both sides by 7

7x/7=14/7

x=2

Find y by using the substitution method

y=-3x+8

y=-3(2)+8

-6+8

=2

Answer:(2,2)

6 0
3 years ago
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