Which equation correctly shows the angle relationships for the given figure?

Mathematics

1 answer:

pshichka [43]2 years ago

8 0

Answer:

Step-by-step explanation:

(3x-14)+9x=90, thus,

((3x-14)+9x)+90=180

90+90=180

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If the price of a textbook is $40 before tax is added on, and tax is 10%, what will the final price of the textbook be?

Digiron [165]

Answer:

soln,

price of textbook = $40

tax% = 10%

now,

tax amount = 10% of $40

= 10\100*40

= 10*4/10

= 40/10

= $4.

again,

final price = cost of textbook+tax

=$40+$4

=$44.

Step-by-step explanation:

so the total price of a Textbook is $40 which is 100% and the tax is 10% so you need to find tax from the price of the textbook which is 10% of the price of the textbook then add the price of the textbook with the tax amount which is the final cost .

4 0

2 years ago

True or false, the following expressions are equivalent:

drek231 [11]

Answer:False

Step-by-step explanation:

3 0

2 years ago

Need a little help with one please

Pani-rosa [81]

Answer:

That would be the side-side-side (SSS) postulate, which states that if all the sides of a triangle are in a fixed ratio to all the corresponding sides of another triangle, then the two triangles are said to be congruent.

Step-by-step explanation:

Looking at triangles ABC and DEF, we notice that:

$\frac{AB}{DE} = \frac{AC}{DF}=\frac{BC}{EF}$