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3 years ago

Evaluate. 18.65 -52/11=

Mathematics

1 answer:

professor190 [17]3 years ago

6 0

The answer is about 13.9927.

You would divide 52/11 and then subtract that decimal by 18.65.

18.65-4.7272=13.9927.

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I really don't understand on how to solve this

Aleks [24]

Hey there! :D

These are vertical angles. They have the same measure, so they are equal to each other.

$6x+25= 2x+105$

Subtract 25 on both sides.

$6x=2x+80$

Subtract 2x on both sides.

$4x=80$

Divide both sides by 4.

$x=20$

I hope this helps, and have a nice day!
~kaikers

3 0

3 years ago

Diane serves breakfast to two groups of children at a daycare center. One box of Oaties contains 12 cups of cereal. She needs 1/

bixtya [17]

No. It's over 12 by 1/6

3 0

3 years ago

The endpoints of line RS are R(1, -3) and S(4,2). Find RS

laila [671]

Answer:

Part 1) $RS=\sqrt{34}\ units$

Part 2) $CD=\sqrt{125}\ units$

Part 3) The coordinates of endpoint C are (13,5)

Step-by-step explanation:

Part 1) The endpoints of line RS are R(1, -3) and S(4,2). Find RS

we now that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$RS=\sqrt{(2+3)^{2}+(4-1)^{2}}$

$RS=\sqrt{(5)^{2}+(3)^{2}}$

$RS=\sqrt{34}\ units$

Part 2) The endpoints of line CD are C(-8,-1) and D(2,4). Find CD

we now that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$CD=\sqrt{(4+1)^{2}+(2+8)^{2}}$

$CD=\sqrt{(5)^{2}+(10)^{2}}$

$CD=\sqrt{125}\ units$

Part 3) The midpoint of line AC is M(5,6). One endpoint is A(-3,7). Find the coordinates of endpoint C

The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

Let

(x2,y2)-------> the coordinates of point C

(x1,y1) -------> the coordinates of point A

substitute the given values

$(5,6)=(\frac{-3+x2}{2},\frac{7+y2}{2})$

write the equations

$\frac{-3+x2}{2}=5\\ \\-3+x2=10\\ \\ x2=10+3\\ \\x2=13$

$\frac{7+y2}{2}=6\\\\ 7+y2=12\\ \\ y2=12-7\\ \\y2=5$

therefore

The coordinates of endpoint C are (13,5)

7 0

3 years ago

Find the measure of each angle in the diagram

Ann [662]

Answers are

3y + 11 = 50
10y = 130
4x -22 = 50
7x + 4 = 130

First we solve for x and y

The two “x” variable angles are supplementary so combined they will equal 180 degrees

(4x -22)+ (7x + 4) = 180
Combine

11x -18 = 180

Add 18 to both sides to isolate variable

11x -18+ 18 = 180 + 18

11x = 198

Divide both sides by 11 to solve for x

11/11 x = 198/11

x = 18

The two “y” variable angles are supplementary so combined they will equal 180 degrees

(3y + 11)+ 10y = 180

Combine

13y + 11 = 180

Subtract 11 from both sides to isolate y

13y + 11 -11 = 180 - 11

13y = 169

Divide both sides by 13 to solve for y

13/13 y = 169/13

y = 13

Now we can solve the angles

3y + 11 =
3(13) + 11 = 50

10y =
10(13) = 130

4x -22 =
4(18) -22 = 50

7x + 4 =
7(18) + 4 = 130

The vertical angle measurement equals each other so it is correct

7 0

1 year ago

(-5x²-9x-6)+(6x²+10)

quester [9]

Answer:

x^2-9x+4

Step-by-step explanation:

(-5x^2-9x-6)+(6x^2+10)

-5x^2+6x^2-9x-6+10

x^2-9x+4

6 0

3 years ago

Read 2 more answers