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3 years ago

PLS HELP WITH THESE ASAP

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

8 0

Step-by-step explanation:

For a

the solution is x>-17

For b

the solution is x<-1

For c

solve by adding 5.5 to each side

For d

solve by dividing each side by 2.5

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Is negative 1 4/5 greater than negative 1 7/10

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Answer:

Step-by-step explanation:

1 4/5 = 1 8/5 if you make a common denominator

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How is constructing an angle bisector similar to constructing a perpendicular bisector?

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Hello,
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3 years ago

Using the diagram on the right, find the length of GT and TA.

Art [367]

Answer:

$GT=10\ units$ and $TA=6\ units$

Step-by-step explanation:

we know that

In the diagram

Triangles GRT and GEA are similar by AA Similarity Postulate

Remember that

If two figures are similar, then the ratio of its corresponding sides is proportional

$\frac{GR}{GE}=\frac{GT}{GA}$

we have

$GR=5\ units$

$GE=5+3=8\ units$

$GT=16-x\ units$

$GA=16\ units$

substitute

$\frac{5}{8}=\frac{16-x}{16}\\ \\5*16=8*(16-x)\\ \\80=128-8x\\ \\8x=128-80\\ \\x=48/8\\ \\x=6\ units$

therefore

$GT=16-x=16-6=10\ units$

$TA=x=6\ units$

5 0

3 years ago

(3) A boy has 10 pens in a pack. He gives 2 pens to his friend. What fraction of the pack is left? *

Olegator [25]

Answer: $\frac{4}{5}$

Step-by-step explanation:

10 pens - 2 pens = 8 pens

Write 8 of 10 as a fraction.

You get $\frac{8}{10}$ , right?

Now, simplify 8/10.

You get 4/5.

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3 years ago

If an interior angle of a regular polygon measures 140*, how many sides does it have?

Katen [24]

Answer:

9 sides.

Step-by-step explanation:

N is the # of sides.

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Multiply both sides by n

140 n = (n-2) x 180

Distribute the right side

140 n = 180 n - 360

Subtract 140 n and add 360 to both sides.

40 n = 360

n = 9

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3 years ago