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olga nikolaevna [1]
3 years ago
8

-9(m+3) +14=-49 please show work

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
8 0

Answer:

m=4

Step-by-step explanation:

−9(m+3)+14=−49

Step 1: Simplify both sides of the equation.

−9(m+3)+14=−49

(−9)(m)+(−9)(3)+14=−49(Distribute)

−9m+−27+14=−49

(−9m)+(−27+14)=−49(Combine Like Terms)

−9m+−13=−49

−9m−13=−49

Step 2: Add 13 to both sides.

−9m−13+13=−49+13

−9m=−36

Step 3: Divide both sides by -9.

−9m

−9

=

−36

−9

m=4

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14 points for help plz
zepelin [54]

We can divide the above figure into two rectangles MNSR and OPQS.

The dimension of rectangle MNSR is 3 x 4 (Since, MR = 3 and MN = 4).

So, area of rectangle MNSR = 3* 4 = 12 square units.

Similarly dimension of rectangle OPQS is 3 x 1 because

PQ = MR - NO = 3 - 2 = 1

SQ = RQ - MN = 7 - 4 = 3.

So, area of OPQS = 3* 1 = 3 square units.

Hence, the area of polygon MNOPQR = Area of rectangle MNSR that is 12 square units + Area of rectangle OPQS that is 3 square units.

= 12 + 3

= 15 square units.

Hope this helps you!

3 0
3 years ago
Given: AE ≅ CE ; DE ≅ BE Prove: ABCD is a parallelogram. Parallelogram A B C D is shown. Diagonals are drawn from point A to poi
nikklg [1K]

Answer:

The proof is below

Step-by-step explanation:

Given a parallelogram ABCD. Diagonals AC and BD intersect at E. We have to prove that AE is congruent to CE and BE is congruent to DE i.e diagonals of a parallelogram bisect each other.

In ΔACD and ΔBEC

AD=BC              (∵Opposite sides of a parallelogram are equal)

∠DAC=∠BCE       (∵Alternate angles)

∠ADC=∠CBE        (∵Alternate angles)

By ASA rule, ΔACD≅ΔBEC

By CPCT(Corresponding Parts of Congruent triangles)

AE=EC and DE=EB

Hence, AE is conruent to CE and BE is congruent to DE

6 0
3 years ago
Pls help 2 and 3!!!!!!!!!
VLD [36.1K]

Answer:

2)

d. -1 1/2

3)

c. 21 1/2

Step-by-step explanation:

5 0
3 years ago
The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of
never [62]
C = 2(pi)r....so we are looking for the radius (r)
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4 0
3 years ago
Read 2 more answers
How do you write 210% as a decimal?
mixas84 [53]

Answer:

I believe it is 2.1 if I am wrong, very sorry.

Step-by-step explanation:

So you divide 200 by 100 so 210/100, thats when you get 2.1. So to convert that from percent to decimal all you do is is just divide by 100 and remove the % sign! Just move the decimal point 2 places to the left. If the percent value is a integer, the '.' is at the right of the right most digit.

Hope this helped you out and hope you got your answer right! Enjoy the rest of your day. :)


5 0
3 years ago
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