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3 years ago

How to work this out and answer please

Mathematics

2 answers:

olga2289 [7]3 years ago

6 0

The answerrRRRRRRRRRRRRRRRRRRRR is A

Anon25 [30]3 years ago

5 0

(3x+94)+(x+30)+(2x-4)=180
5x+120=180
5x=60
x=12
COD=42

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6.8x+9.3= -9.4+3.4(2-5x)

NemiM [27]

Answer: the answer to this is x=0.5

Step-by-step explanation:

In order to solve this you have to combine the multiplied terms into a single fraction so its going to look like this - 34x/5 + 9.3= -9.4+3.4(2-5x)

The reposition your terms and put together your multiplied terms into a fraction,Once you have that done distribute them

Subtract 9.3 on both sides.you may simplify and then multiply all the terms with the same value to get rid of the denominators from the fractions

also add 85x to both sides then finally divide both side by the same term which get you -59.5/119 and then simplify and you get -0.5

so x= -0.5

5 0

3 years ago

Read 2 more answers

Pure mathematicsssss

stepan [7]

Answer:

(i) a = 2

b = -1

c = -1

(ii) x= 1

Step-by-step explanation:

Step 1: Factorise

$f(x) = 2(x^{2} -2x+\frac{1}{2})$

Step 2: Use the complete square method.

$f(x)=2(x^{2} -2x+(\frac{-2}{2})^{2} + \frac{1}{2} - (\frac{-2}{2})^{2} )$

Step 3: Have it to $a(x+b)^{2} +c$

$f(x)=2((x-1)^{2} -\frac{1}{2} )\\ = 2(x-1)^{2} -1$

Line of symmetry:

To find line of symmetry, we use -b/2a formula.

Based from $2x^{2} -4x+1$ :

a=2, b=-4

-b/2a = -(-4)/2(2) = 1

3 0

3 years ago

Using the given right triangle, which ratio is correct?

Tom [10]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Prove that BUGS is a trapezoid with coordinates B(-2,-1), U(0,3), G(3,2) and S(4,-3).

telo118 [61]

Answer:

Proved

Step-by-step explanation:

Given

$B =(-2,-1)$

$U = (0,3)$

$G = (3,2)$

$S = (4,-3)$

Required

Prove BUGS is a trapezoid

Given the coordinates, to prove a trapezoid; all we need to do is to check if one pair of sides is parallel.

Taking BU and GS as a pair

First, we calculate the slope using:

$m = \frac{y_2 - y_1}{x_2 - x_1}$

For BU

$B =(-2,-1)$ --- $(x_1,y_1)$

$U = (0,3)$ --- $(x_2,y_2)$

So, we have:

$m = \frac{3 - -1}{0- -2}$

$m = \frac{4}{2}$

$m = 2$

For GS

$G = (3,2)$ --- $(x_1,y_1)$

$S = (4,-3)$ --- $(x_2,y_2)$

So, we have:

$m = \frac{-3-2}{4-3}$

$m = \frac{-5}{1}$

$m = -5$

The slope of BU and GS are not the same; hence, they are not parallel.

Taking BS and GU as a pair

Calculate the slope

For BS

$B =(-2,-1)$ --- $(x_1,y_1)$

$S = (4,-3)$ --- $(x_2,y_2)$

So, we have:

$m = \frac{-3 - -1}{4- -2}$

$m = \frac{-2}{6}$

$m = -\frac{1}{3}$

For GU

$G = (3,2)$ --- $(x_1,y_1)$

$U = (0,3)$ --- $(x_2,y_2)$

So, we have:

$m = \frac{3-2}{0-3}$

$m = \frac{1}{-3}$

$m = -\frac{1}{3}$

The slope of BS and GU are the same; hence, they are parallel.

BUGS is a trapezoid because BS and GU have the same slope

8 0

3 years ago

If 50 empty soda cans weigh312 pounds, how much would 70 enpty soda cans weigh?

Deffense [45]

312 / 50 = 6.24
70 • 6.24 = 436.8

70 cans would weigh 436.8 pounds.

7 0

3 years ago