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vichka [17]
3 years ago
15

Help me please I have no idea what the answer is​

Mathematics
1 answer:
joja [24]3 years ago
4 0

Answer:

-21/10

Step-by-step explanation:

-2/5 - 4/5 = -6/5  <--

a common denominator

Then...

-6/5 -9/10 = -21/10

There is not a common denominator so you have to multiply 2 to the -6/5 to make it -12/10

The answer can be left as an improper fraction which is -21/10

or a mixed number -2 1/10 th

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If ABCD is congrunent to , pqrs, then AD is congrent to ?
katovenus [111]

Answer:

AD is congruent to RS

Step-by-step explanation:

we know that

If two figures are congruent, then its corresponding sides and its corresponding angles are congruent

In this problem

If

ABCD≅PQRS

then

<em>Corresponding angles</em>

∠A≅∠P

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Write the direct variation: The total cost C of gasoline is $3.00 times the number of gallons g
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3 years ago
I need help with my homework
maxonik [38]

Answer:

The measure of the arc RQ is 160°

Step-by-step explanation:

  • <em>In any circle, the measure of the subtended arc of an inscribed angle is twice the measure of this inscribed angle</em>
  • <em>The measure of any circle is 360°</em>

Let us use these rules to solve the question

In the given figure

∵ ∠RPQ is an inscribed angle subtended by arc RQ

∴ m of arc RQ = 2 × m∠RPQ

∴ m∠RPQ = 5x + 15

∴ m of arc RQ = 2 × (5x + 15)

→ Multiply the bracket by 2

∴ m of arc RQ = 2(5x) + 2(15)

∴ m of arc RQ = 10x + 30

∵ The measure of the circle = 360°

∵ The sum of the measures of arcs RQ, QP, and PR equals the measure

   of the circle

∵ m of arc QP = 6x - 12

∵ m of arc PR = 9x + 17

→ Add them and equate the sum by 360°

∴ 10x + 30 + 6x - 12 + 9x + 17 = 360

→ Add the like terms in the left side

∵ (10x + 6x + 9x) + (30 - 12 + 17) = 360

∴ 25x + 35 = 360

→ Subtract 35 from both sides

∴ 25x = 325

→ Divide both sides by 25 to find x

∴ x = 13

→ To find the measure of arc RQ substitute x by 13 in its measure

∵ m of arc RQ = 10(13) + 30 = 130 + 30

∴ m of arc RQ = 160°

∴ The measure of the arc RQ is 160°

4 0
2 years ago
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