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Ulleksa [173]
3 years ago
14

Which expression is represented by the diagram?

Mathematics
1 answer:
Vilka [71]3 years ago
6 0
-6-(-1)

explanation:
-6-(-1)
remove parentheses
-6+1=5
there are only 5 blocks remaining and this equation is the only one that totals out to 5 blocks
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Can someone please help me I really need help please help me thank you
Bezzdna [24]

Answer:

97

Step-by-step explanation:

the shape leans a little so it's more than 90

4 0
3 years ago
Given that y varies directly as x and y = 18 when x = 6
sergey [27]

Answer:   y = 15,    x = 10

<u>Step-by-step explanation:</u>

NOTE: "varies directly" is of the form    \dfrac{y}{x}=k  where k is the constant of proportionality.

First, input the given x and y-values to find k

\dfrac{y}{x}=k\qquad \qquad \text{Given: y=18, x=6}\\\\\dfrac{18}{6}=k\\\\\boxed{3=k}

Next, input the given value and k = 3 to solve for the missing variable.

x = 5\\\\\dfrac{y}{5}=3\\\\\large\boxed{y = 15}\\\\\\y=30\\\\\dfrac{30}{x}=3\\\\\dfrac{30}{3}=x\\\\\large\boxed{10 = x}

4 0
4 years ago
Sam can plant 261 cabbage plants in 1 row of his garden . How many rows in his garden must be used to plant 1044 plants
HACTEHA [7]
4 rows becsuse 261 × 4 = 1044. hop it helped
5 0
3 years ago
(3x +1)•2x – x^2 • 3<br> (3x + 1)^2
lys-0071 [83]

Answer:

<h3>3x^2 +2x</h3><h3>9x^2 +6x+1</h3>

Step-by-step explanation:

(3x +1)\cdot 2x - x^2 \cdot 3\\\\=2x\left(3x+1\right)-3x^2\\\\\mathrm{Expand}\:2x\left(3x+1\right):\quad 6x^2+2x\\\\=6x^2+2x-x^2\cdot \:3\\\\\mathrm{Simplify}\:6x^2+2x-x^2\cdot \:3:\\\quad 3x^2+2x

2.

(3x + 1)^2\\\\\mathrm{Apply\:Perfect\:Square\:Formula}:\\\quad \left(a+b\right)^2=a^2+2ab+b^2\\\\a=3x,\:\:b=1\\\\=\left(3x\right)^2+2\cdot \:3x\cdot \:1+1^2\\\\\mathrm{Simplify}\:\left(3x\right)^2+2\cdot \:3x\cdot \:1+1^2:\\\quad 9x^2+6x+1

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4 years ago
I have x^2=2 how do you "undo" squaring a number?
bezimeni [28]
You have to square root it. 

6 0
3 years ago
Read 2 more answers
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