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timama [110]
2 years ago
11

2. Expand and simplify each of the following

Mathematics
1 answer:
Taya2010 [7]2 years ago
7 0
(A) 5a +10b -36
(B) 19p + 921
(C) -4a +7b
(D) 7x -9y + 10z
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Which of the following proves trinagle ABC =~ trinagle DEF? Please help me step-by-step with this please, and if you give just a
Art [367]

Answer:

C. ASA

Step-by-step explanation:

The details of the given parameters are;

Angle ∠B of ΔABC is congruent to angle ∠E of triangle ΔDEF,

Angle ∠C of ΔABC is congruent to angle ∠F of triangle ΔDEF

Side \overline{BC} of ΔABC is congruent to side \overline {EF} of triangle ΔDEF

Two angles (∠B and ∠C) and the included side (side \overline{BC}) of ΔABC are congruent to the corresponding two angles and included side (∠D, ∠E and side \overline {EF}) of ΔDEF, therefore, the two triangles are congruent by the Angle-Side-Angle, ASA, rule of congruency

3 0
3 years ago
Kala must choose a shirt, a pair of pants, and a cap for today's outfit. She has 3 shirts, 3 pairs of pants, and 1 cap to choose
Mrac [35]

Answer:

just multiply all the variables.

3 pants times 3 shirts= 9.

only 1 hat, so no variable there.

9 outfits

8 0
3 years ago
HELLO? HELLO? ANYONE THERE TO ANSWER
Svetach [21]

Answer:

-2u + w ⇒ answer B

Step-by-step explanation:

* To solve this problem you must find the result from the graph

- The ray move from the origin 6 units to the left and then 1 unit up

∴ The result is <-6 , 1>

* Now lets check which answer give the same result

∵ u = <5 , -5> , v = <1 , -4> , w = <4 , -9>

# Answer A: w - 2v

∵ w = <4 , -9>

- Find 2v by multiply v by 2

∵ 2v = 2<1 , -4> = <2 , -8>

- Subtract 2v from w

∴ w - 2v = <4 , -9> - <2 , -8> = <(4 - 2) , (-9 - -8)> = <2 , -1> ≠ <-6 , 1>

# Answer B: -2u + w

∵ u = <5 , -5>

- Find -2u by multiply u by -2

∵ -2u = -2<5 , -5> = <-10 , 10>

- Add -2u and w

∵ w = <4 , -9>

∴ -2u + w = <-10 , 10> + <4 , -9> = <(-10 + 4) , (10 + -9)> = <-6 , 1> = <-6 , 1>

∴ The answer is B

8 0
3 years ago
Read 2 more answers
A circle with radius of 3 cm sits inside a circle with radius of 5 cm. What is the area of the shaded region? Round your final a
DiKsa [7]

Hello!!

So first you need to find the area of the green circle. The formula for finding area for a circle is A = π r2. So the area for the green circle is 28.26 cm. Then you need to find the area of the blue circle. (Using the same formula) which would be 78.5. Then you subtract the value of the green circle to get the value of the shaded region which then your final answer is 50.24 cm. Hope this helped!!

8 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME ASAP PLEASEEEE!!!​
oee [108]
Could be wrong but since given the smaller quadrilateral is similar to to larger one, by definition the ratio of there corresponding sides would be congruent. Length of 5 of ec is to 10 of bc as the length of fe (6) is to the length of ab would be 12
8 0
3 years ago
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