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never [62]
2 years ago
8

Substitute 3 for x and evaluate the expression below.

Mathematics
1 answer:
lana66690 [7]2 years ago
6 0

Answer:4

Step-by-step explanation:3-8=-5. But because it is in absolute value, it would be positive 5. And then 5-1=4.

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If triangle abc is similar to triangle edc find the value of x
svetoff [14.1K]

Answer:

x = 15

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

\frac{BC}{DC} = \frac{AC}{EC} , substitute values

\frac{3x-5}{32} = \frac{5x-5}{56} ( cross- multiply )

56(3x - 5) = 32(5x - 5) ← distribute and simplify both sides

168x - 280 = 160x - 160 ( subtract 160x from both sides )

8x - 280 = - 160 ( add 280 to both sides )

8x = 120 ( divide both sides by 8 )

x = 15

4 0
2 years ago
Please answer please it’s pweety ez
r-ruslan [8.4K]

Answer:

67 feet^2

Step-by-step explanation:

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8 0
2 years ago
?????????????????????????????????????????????????
Vladimir [108]
Number 15- The total is 350
                    A discount of 70% off
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4 0
3 years ago
Read 2 more answers
Can someone please help
ollegr [7]

-18x

you first times the numbers, which becomes -18

Next you add the exponent from the veriables (x) (if you're diving you're subtractiong example: x^a/x^b = x^a-b)

Sooo when you add them you get 8-7=1 which means.. x^1 (but you don't need to put the 1)

-18x

8 0
3 years ago
Read 2 more answers
Simplify the following Expression by combining like terms:<br> y+ 3x + 4y + 2x + 3y + 3x
lys-0071 [83]

Answer:

8x+8y

Step-by-step explanation:

y + 3x + 4y + 2x + 3y +3x

<em>With</em><em> </em><em>this</em><em> </em><em>we</em><em> </em><em>group</em><em> </em><em>x</em><em> </em><em>with</em><em> </em><em>x</em><em> </em><em>and</em><em> </em><em>y</em><em> </em><em>with</em><em> </em><em>y</em><em> </em><em>and </em><em>in</em><em> </em><em>ascending</em><em> </em><em>order</em><em> </em><em>so</em><em> </em><em>x</em><em> </em><em>comes</em><em> </em><em>before</em><em> </em><em>y</em>

3x+2x+3x

And the y with y

y+4y+3y

Which is;

3x+2x+3x+y+4y+3y

8x+8y

8 0
2 years ago
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