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prisoha [69]
3 years ago
8

Please help me with this math problem

Mathematics
2 answers:
bekas [8.4K]3 years ago
8 0
I hope this helps you!

Alekssandra [29.7K]3 years ago
3 0
3(3)(3) + 11(2) - 4(7)
27 + 22 - 28
49 - 28
= 21
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IgorC [24]
I can’t see nun, sorry kid.
5 0
3 years ago
Help me... I don't really understand and need an explanation
ehidna [41]

Answer:

x=17

Step-by-step explanation:

This should be for a "kite": AD=DC, AB=BC and ∠A=∠C

8x-27 = 3x+58

5x = 85

x = 17

3 0
2 years ago
Solve the system of equations using the substitution method.<br> -5x − 3y = 16<br> y = x
max2010maxim [7]

Answer:

-5x - 3x = 16

-8x = 16

x = -2

y = x

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Father's age is 3 times the sum of ages of his two children. After 5 years his age will be twice the sum of ages of two children
ra1l [238]

Answer:

45 is the father's age

Step-by-step explanation:

7 0
3 years ago
In the coordinate plane, draw quadrilateral ABCD with A(–5, 0), B(2, –6), C(8, 1), and D(1, 7), then demonstrate that ABCD is a
Len [333]

Answer:

ABCD is a rectangle

Step-by-step explanation:

∵ A = (-5 , 0) , B = (2 , -6) , C = (8 , 1) , D = (1 , 7)

∵ The x-coordinate of the mid-point of AC = (-5 + 8)/2 =3/2

∵ The y-coordinate of the mid-point of AC = (0 + 1)/2 = 1/2

∴ The mid-point of AC = (3/2 , 1/2)

∵ The x-coordinate of the mid-point of BD = (2 + 1)/2 =3/2

∵ The y-coordinate of the mid-point of BD = (-6 + 7)/2 = 1/2

∴ The mid-point of BD = (3/2 , 1/2)

∴ The mid-point of AC = The mid-point of BD ⇒ (1)

∵ AC = √[(8 - -5)²+(1 - 0)² = √170

∵ BD = √[(1 - 2)²+(7 - -6)² = √170

∴ AC = BD ⇒ (2)

From (1) and (2)

AC and BD equal each other and bisects each other

∴ ABCD is a rectangle

7 0
3 years ago
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