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Elis [28]
4 years ago
12

Please answer correctly

Mathematics
1 answer:
fenix001 [56]4 years ago
3 0

Answer:

My answer is D

Step-by-step explanation:

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If ABCD is a parallelogram, BC =3m + 10, and AD = 7m – 2, find the value of ‘m’. *
-BARSIC- [3]

Answer:

The value of m is 3

Step-by-step explanation:

We are given that ABCD is a parallelogram

Property of parallelogram : Opposite sides of parallelogram is equal

So, AB = CD and BC = AD

We are given that

BC =3m + 10

AD = 7m – 2

So, Using Property

BC=AD

3m+10=7m-2

12=4m

\frac{12}{4}=m

3=m

Hence The value of m is 3

8 0
4 years ago
What is the value of c so that -9 and 9 are both solutions of x2+c=103
Debora [2.8K]

Answer:

c=22

Step-by-step explanation:

Given equation:

x^2+c=103

Solutions: -9 and 9

To solve for c

Solution:

The solutions of the equation means x=-9 and x=9

We will plugin the solutions in the equation and solve for c

1)  when x=-9

(-9)^2+c=103

81+c=103

Subtracting both sides by 81.

81+c-81=103-81

∴ c=22

2)  when x=9

(9)^2+c=103

81+c=103

Subtracting both sides by 81.

81+c-81=103-81

∴ c=22

So, for both solutions we get c=22

5 0
3 years ago
(a) An object has a mass of 720 g and a density of 18 g/cm^3<br> volume of the object?
Setler [38]

Answer:

volume = mass / density

volume = 720 g / 18 g/cm³

volume = 40 cm³

Step-by-step explanation:

5 0
3 years ago
-u/5=-27 help pls due today
ElenaW [278]

Answer:

u = 135

hoped i helped u

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Expression equivalent to 5(3m + n)
skelet666 [1.2K]

Answer:

Step-by-step explanation:

5(3m + n) = 15m + 5n

3 0
3 years ago
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