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Pavel [41]
3 years ago
9

The area of a trapezium is 210cm. The

Mathematics
1 answer:
amid [387]3 years ago
6 0

Answer:

using the formula A = (a+b)/2 x ht., and substituting numbers given, the answer would be 15 cm.

Step-by-step explanation:

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Please help me really quick pleasee<br> answer choices:<br> a)2<br> b)11<br> c)20<br> d)29
mihalych1998 [28]

Answer:

C. x=20^{\circ}

Step-by-step explanation:

Angle 6 and angle with measure 45° are vertical angles (opposite angles whan two lines intersect). By Vertical Angles Theorem, vertical angles are congruent, so

m\angle 6=45^{\circ}

Angle 6 and angle with measure 5x+35^{\circ} are the same side interior angles when two parallel lines are cut by transversal. The same side interior angles add up to 180°, then

m\angle 6+5x+35^{\circ}=180^{\circ}\\ \\45^{\circ}+5x+35^{\circ}=180^{\circ}\\ \\5x=180^{\circ}-45^{\circ}-35^{\circ}\\ \\5x=100^{\circ}\\ \\x=20^{\circ}  

7 0
3 years ago
Simplify 8c- 4d + 8d +9c - 18c
neonofarm [45]

-c +4d

Step-by-step explanation:

8c - 4d + 8d + 9c - 18c

Group like terms and simplify

8c + 9c - 18c - 4d + 8d \\  - c + 4d

4 0
3 years ago
Read 2 more answers
PLEASE ANSWER THIS ASAP !!!!!!
MrRissso [65]

Answer:

y = - x

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 2, 2) and (x₂, y₂ ) = (2, - 2) ← 2 points on the line

m = \frac{-2=2}{2+2} = \frac{-4}{4} = - 1 , thus

y = - x ← equation of line

5 0
3 years ago
3x+7=13 (x=-2;x=2;x=5)
AnnZ [28]
X=2 because 3 times 2 is 6 and then you add 6 and 7 together and get 13.
5 0
3 years ago
Read 2 more answers
Imani is selling T-shirts for a student council fund-raiser. She spent $100 on
Kruka [31]

Answer:

Step-by-step explanation:

the domain is gonna be ur x values and ur range is gonna be ur r(x) values

the domain has to do with the number of t-shirts.....and it can range from 0 to 25.......so it would be written as : [0,25]...include the brackets....not parenthesis...or all whole numbers from 0 to 25

the range has to do with the money made....and it can range from : -100 to 200....so it would be written as : [ -100,200] ..use brackets and not parenthesis.

3 0
3 years ago
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