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V125BC [204]
3 years ago
15

Please help me with this thank you !!

Mathematics
2 answers:
andreev551 [17]3 years ago
4 0
I think the answer is b i've never learned this sorry :(
Keith_Richards [23]3 years ago
4 0
Remember, the sum of the interior angles within a pentagon is 540 degrees.
To find x, add up all the measures the of angles including the unknown angle, and set that equal to 540 degrees.
x + 118 + 100 + 100 + 124 = 540

Solve for x:
x = 98
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A microscope shows you an image of an object that is 20 times the objects actual size. Therefore, the scale factor of the enlarg
madam [21]
We just have to multiply 20 by 10mm, which is 200mm. 100mm is equal to one centimeter, so the body length of the insect under the microscope is two centimeters.
4 0
3 years ago
Read 2 more answers
Factor the polynomial: -43 - 3x2 - 4x
ASHA 777 [7]

Answer:

-3x^2-4x-43

Step-by-step explanation:

factor out the negative signs

remove parenthesis

5 0
2 years ago
Classify each as an expression or an equation.
fenix001 [56]

Answer:

1. equation

2. equation

3. expression

4. expression

explanation is that an equation has an equal sign and an expression doesnt .  

5. equation

Step-by-step explanation:

6 0
3 years ago
Xy+(4(20))>x-5y(2+9-7)
prohojiy [21]

I'll solve for y xy+(4(20))>x-5y(2+9-7) 

xy+4(20)>x-5y(2+9-7) 

xy+4(20)>x-5y(4) 

xy+4(20)>x-20y 

xy+80>x-20y 

xy+20y+80>x 

y(x+20)>-80+x 

y>(-80+x)/(x+20)


3 0
3 years ago
Solve by graphing.
const2013 [10]

Answer:

(4,4)

Step-by-step explanation:

y = 2x - 4 -------eqn 1

4y = x + 12 ------eqn 2

From eqn 1 y = 2x - 4; insert in eqn 2

4 (2x-4) = x + 12 (open the bracket)

8x - 16 = x + 12 (taking like figures to the same side, sign changes)

8x - x = 12 + 16

7x = 28

x = 28/7

x = 4

From eqn 1

y = 2x - 4

y = 2(4) - 4

y = 8 - 4

y = 4

(x,y) = (4,4)

8 0
3 years ago
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