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dmitriy555 [2]
3 years ago
7

A rectangle has a height of 3 and a width of 2x*2 + 3x - 5 , express area of whole rectangle, please answer this ASAP !!!

Mathematics
1 answer:
monitta3 years ago
8 0
Area is height time width, or in this case, 3(2x^2+3x+5), which is 6x^2+9x+15.
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The equations : -3x+4y=-30− and 9x + 5 y = 39 intersect at the coordinate (h, k). What is the value of h?
Phantasy [73]

Answer:

h = 6

Step-by-step explanation:

Given the 2 equations

- 3x + 4y = - 30 → (1)

9x + 5y = 39 → (2)

We require the value of the x- coordinate at the point of intersection, thus require to eliminate the y- term from the equations

Multiply (1) by 5 and (2) by - 4

- 15x + 20y = - 150 → (3)

- 36x - 20y = - 156 → (4)

Add (3) and (4) term by term thus eliminating y

- 51x = - 306 ( divide both sides by - 51 )

x = h = 6

5 0
3 years ago
The circumference of a circle is 9.37cm.
klasskru [66]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
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The equation is 2(4x-11)=10 and how do you divide each side of the equation by 2.
Ierofanga [76]

Answer:

4x-11=5

Step-by-step explanation:

If u were to divide each side of the equation by 2, the 2 on the left which is supposed to distribute into the parenthesis would disappear, and the 10 on the right side would turn into 5.

What is left is this,

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7 0
3 years ago
Please help!! Greatly appreciated <3
Margaret [11]

Answer:

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Step-by-step explanation:

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Which set of lengths might be used to represent the sides of a right triangle?
UNO [17]

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Step-by-step explanation:

B

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