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nika2105 [10]
3 years ago
8

Help plz, its calculating area of a cricle​

Mathematics
2 answers:
kiruha [24]3 years ago
7 0

Answer:

1. 1385.44

2. 2463.01

Masteriza [31]3 years ago
6 0

Answer:

1. 1,385.442 , 2. 2,463.009  , 3. 7,542.964  , 4. 346.361

Step-by-step explanation:

pls mark brainiest!

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Solve the proportion y/22=3/11
djverab [1.8K]
Here;
Y=(3×22)/11. [ By Cross Multiply]
Y=66/11
:Y=6

May be Helpful.
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8 0
3 years ago
What is the vertex form of 4x^2+4x-12
REY [17]

Answer:

(-0.5, -13)

Step-by-step explanation:

3 0
3 years ago
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I NEED HELP! Write an equation in standard form of the line
nadezda [96]

Answers:

  • First box = 1
  • Second box = -5
  • Third box = -15

This forms the equation 1x-5y = -15, which is the same as x-5y = -15

=================================================================

Explanation:

Let's find the slope. I'll pick the first two rows to form the two points needed

(x1,y1) = (0,3)

(x2,y2) = (10,5)

These are then plugged into the slope formula.

m = slope

m = (y2-y1)/(x2-x1)

m = (5-3)/(10-0)

m = 2/10

m = 1/5

m = 0.2

The y intercept is b = 3 since this is the y value when x = 0.

With m = 0.2 and b = 3, we go from y = mx+b to y = 0.2x+3

Let's multiply both sides by 5 to turn that decimal value into a whole number. I'm picking 5 since 0.2 = 1/5

So we get

y = 0.2x+3

5y = 5*(0.2x+3)

5y = 5*0.2x+5*3

5y = x+15

Now let's get x and y together, but move that 15 to its own side

5y = x+15

x+15 = 5y

x = 5y-15

x-5y = -15

This is one way to write the equation in standard form.

Standard form is Ax+By = C, where A,B,C are integers. Some math textbooks insist that A > 0. In this case, A = 1, B = -5, and C = -15.

----------------------

As a way to check, we can plug in (x,y) = (15,6) from the third row of the table to see that..

x-5y = -15

15-5(6) = -15

15 - 30 = -15

-15 = -15

This verifies the third row. I'll let you check the first two rows of the table to fully confirm this equation works.

8 0
2 years ago
I need help ASAP thank you
Umnica [9.8K]

Answer:D) Under-root 25.Under-root 3

Step-by-step explanation

Under-root 25 = 5

7 0
3 years ago
Read 2 more answers
In the figure below, mZ1=(x +48) and m2 2=2xº.<br> Find the angle measures.
NARA [144]
Since m < 1 and m < 2 are complementary angles wherein the measure of their angles add up to 90°, we can establish the following equation:

m < 1 + m < 2 = 90°
x° + 48° + 2x° = 90°

Combine like terms:
48° + 3x° = 90°

Subtract 48° from both sides:

48° - 48° + 3x° = 90° - 48°

3x = 42°

Divide both sides by 3 to solve for x:

3x/3 = 42/3

x = 14°

Plug in the value of x into the equation to fins m< 1 and m < 2:

m < 1 + m < 2 = 90°
(14° + 48°) + 2(14)° = 90°
62° + 28° = 90°

90° = 90° (True statement)

Therefore:

m < 1 = 62°
m < 2 = 28°
6 0
3 years ago
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