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madam [21]
3 years ago
13

PLEASE HELP! this is a 4 part problem but here is the first part!! :(

Mathematics
1 answer:
dimulka [17.4K]3 years ago
8 0

Answer:

HI SORRY IM, SPEAK SPANISH... FROMN COLOMBIA

Step-by-step explanation:

HOLI MK NO SE HABLAR INGLES CHAU

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Find the solution of the given system of equations
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Answer:

Point form-

(3,-2)

Equation Form:

x=3, y=-2

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Solve for the first variable in one of the equations, then substitute the result into the other equation.

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Write as a numerical <br>expression<br><br>add 7 and 12 and then<br>multiply by 4<br>​
son4ous [18]

numerical expression: 7+12(4)

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Find the area of the shaded portion in the equilateral triangle with sides 6.
VashaNatasha [74]
First, let's get the area of the entire triangle since we'll need it later. The area of a triangle is A=1/2*b*h

We can find the height with the Pythagorean theorem by splitting the triangle in half. 
3^2+b^2=6^2
9+b^2=36
b^2=27
b=√27

Then we can find the area:
A=1/2*6*√27
A=3√27   or   =9√3   or 15.59

Now we can find the area of each region in the triangle other than the shaded region because they are all portions of a circle.

Each region has an angle of 60 because this is an equilateral triangle. Therefore the area of each region other than the shaded region will be 1/6 the area of a circle with a radius of 3 because a full circle is 360 degrees.
A=pi*r^2/6
A=pi*9/6
A=4.71

So three of these regions would have an area of 14.14

We do the area of the triangle minus the area of these regions to get the area of the shaded region
15.59-14.14 = 1.45

Hope this helps!


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3 0
3 years ago
Bruce weighs 12 pounds less than three times what Dylan weighs. Write an expression for Bruce's weight in terms of Dylan's weigh
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3d-12=b

Step-by-step explanation:

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Rewrite the expressions without the parentheses 5(-5x-7)=
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Answer:

5*-5x*-7=

Step-by-step explanation:

*=multiply

7 0
3 years ago
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