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swat32
3 years ago
5

The diameter of a circle is 4 feet what is the area?

Mathematics
1 answer:
masya89 [10]3 years ago
3 0

the area of the circle is 12.57

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It has the same slope as y=5x+3 and passes through (1, 5).
valina [46]

Answer:

y=5x

Step-by-step explanation:

Because it has the same slope, both equations must have 5x as their slope. The 2 equations are not going to have the same y intercept, so the +3 can be ignored and replaced with b. You want to plug in (1,5) into you new equation of y=5x+b, to get 5=5(1)+b. Multiply 5 by 1 to get 5, and then subtract 5 from both sides, which gives you 0=b. This means that the y intercept is the origin, so your new equation is y=5x

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Find the length of the altitude to the hypotenuse. Round the answer to the nearest tenth. Solve for AD.
dedylja [7]

Answer:

  AD = 2.4

Step-by-step explanation:

All of the triangles in this figure are similar, so their corresponding sides have the same ratios.

The short side of ΔABD is 3/5 of the hypotenuse, which is 4.

  AD/AB = CA/CB . . . . = short side/hypotenuse

  AD = AB(CA/CB) = 4(3/5) = 2.4

The length of AD is 2.4 units.

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You can also go at this in terms of area.

  A = 1/2bh = 1/2(3)(4) = 1/2(5)(AD)   ⇒   AD = 12/5 = 2.4

4 0
3 years ago
Change the given fractions to decimals.then, determine whether the decimal is terminating or repeating .write your answer in you
Amanda [17]

Answer:

  • See below

Step-by-step explanation:

As a rule, worth remembering, the fractions with denominators of multiples of 2, 5 or combination of the two, result in terminating decimals and all the rest- non-terminating.

<u>Considering this we can state:</u>

  • 9/5, 5/16, 3/25, 2/5, 3/20 are terminating decimals
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Make an equation that has the numbers : -3.78 , -1.2y, and -4.2y
kodGreya [7K]

Answer: In solution

Step-by-step explanation:

Well, first you need to arrange the numbers in anyway, separated by operations. I just did:

-3.78 + (-1.2y + -4.2y)

We then need to come up with the other side of the equation.

For this, I added the like terms:

-3.78 + (-1.2y + -4.2y) = -3.78 -5.4y

Then, I came up with a value for y. Y = 5

Then, I multiplied -5.4 by 5, getting -27 so,

-3.78 + (-1.2y + -4.2y) = -3.78 - 27

Again, I collected like terms:

-3.78 + (-1.2y + -4.2y) = -30.78

Now, I have my equation.

———————————————————————————————

HOW TO SOLVE THE EQUATION

-3.78 + (-1.2y + -4.2y) = -30.78

1. Add 3.78 to both sides

-1.2y + -4.2y = -27

2. Collect like terms

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3. Divide both side by -5.4

y = 5

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Mrs. Ronilo had her students make a stem-and-leaf plot of the heights of all of the students in the class. The mean was 55. Dave
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