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3 years ago

12

copy this figure onto grid paper. draw line to divide the figure into 4 congruent polygons. how do you know the ploygons are con

gruent

1 answer:

Shalnov [3]3 years ago

4 0

Copy this figure on to grid paper

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Please I need this answer with working... <br> Log 91 - Log 13 /Log 245 - Log 5

kakasveta [241]

The answer is: 1.49
i used a calculator.

7 0

3 years ago

Read 2 more answers

Asta made a fraction number line to help her multiply 3 x 4/5

aalyn [17]

3 times 4/5 can also be known as 3 times 4 over 5, which is 12 over 5.
12/5 can be simplified to 2 2/5 or 2.4. This is the answer to 3 * 4/5
And I have no idea how to draw a number line on a computer.

7 0

3 years ago

Find the area of triangle PQR.

Alex

Answer:

70°

Step-by-step explanation:

Since PTS shape is equal to QTR

and PTQ shape is equal to STR

and Since QTP = 10

and Since PTS = 60

Add both up 70

Therefore PQR = 70°

4 0

3 years ago

X+78=3x-2 <br> ..................

photoshop1234 [79]

Answer:

$x=40$

Step-by-step explanation:

$x+78=3x-2\\\mathrm{Subtract\:}78\mathrm{\:from\:both\:sides}\\x+78-78=3x-2-78\\x=3x-80\\\mathrm{Subtract\:}3x\mathrm{\:from\:both\:sides}\\x-3x=3x-80-3x\\\\$

$-2x=-80\\\frac{-2x}{-2}=\frac{-80}{-2}\\x=40$

6 0

3 years ago

Prove that the value of the expression does not depend on the variable x:

Leviafan [203]

Answer:

See below

Step-by-step explanation:

If an expression is not dependent on x, it simplified form must not contain x. To show that this is the case for (a) and (b) we need to simplify them and assess:

(a)

$(x-5)(x+8)-(x+4)(x-1)=\\=x^2-5x+8x-40-x^2-4x+x+4=-36$

Indeed, does not depend on x!

And (b)

$x^4-(x^2-1)(x^2+1)=x^4-x^4+x^2-x^2+1=1$

Again, does not depend on x.

8 0

3 years ago