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daser333 [38]
3 years ago
7

You have a new mobile phone .The phone costed ?140 and then you pay for one year contract at ?15 per month .How much do you pay

in total ?
Mathematics
1 answer:
e-lub [12.9K]3 years ago
6 0
320 dollars in total
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If ∠C and ∠D are vertical angles and m ∠ C = x + 5 and m ∠ D = –2x + 80, what is m ∠ C?
amm1812

Answer:

m∠C=30°

Step-by-step explanation:

we know that

<u>Vertical Angles</u> are the angles opposite each other when two lines cross. They are always equal

so

m∠C=m∠D

substitute the given values

(x+5)\°=(-2x+80)\°

Solve for x

x+2x=80-5\\3x=75\\x=25

<em>Find the measure of angle C</em>

m∠C=(x+5)°

substitute the value of x

m∠C=(25+5)=30°

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3 years ago
Parallelogram PQRS has diagonals that are perpendicular. Based on that, which statement is most correct?
viva [34]

Answer:

B- Parallelogram PQRS is also a rhombus.

Step-by-step explanation:

Given

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Required

Which of the option is true

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<em>If (a) is false, then (d) is also false</em>

(b) PQRS can a rhombus

The diagonals of a rhombus are not perpendicular.

So (b) <em>is true</em>

<em>No need to check for (c), since only option is true</em>

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What are the roots of y=x^2 +25
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Answer:

Its a i just took the test

Step-by-step explanation:

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After increase by 30 % it becomes $520?
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I believe it is 364.
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