3 years ago

The opposite of -a is always positive. True or false? Answer it fast please!!

Mathematics

1 answer:

nikklg [1K]3 years ago

3 0

Answer:

false

Step-by-step explanation:

If "a" is a negative number, then this statement would be false.

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If you help me I’ll mark brainliest

Ivahew [28]

Answer:

∠2=92°

Step-by-step explanation:

Using an angle formula, -8x+144=2x+74

Simplification:

-8x+144=2x+74

-8x+70=2x

70=10x

x=7

Therefore, each angle is 88°

Now, because ∠2 is adjacent to one of 88°, they add up to 180°

Therefore,

180°=88°+∠2

∠2=92°

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2 years ago

In a group of 31 pupils, 4 play the flute only. 14 play the piano only. 7 play neither instrument. A student is selected at rand

solmaris [256]

Answer:

probability the student plays both instruments is [ $\frac{6}{31}$ ]

<h2> <u>Explanation</u>:</h2>

students who play both instruments = total students - flute players - piano players - students who play neither instruments

students who play both instruments

→ 31 - 4 - 14 - 7

→ 6 students play both instruments.

probability:

<h2>→ $\boxed{\frac{students- who -play- both- instruments}{total -students} }$ </h2><h2>→ $\boxed{\frac{6}{31} }$ </h2>

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2 years ago

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A local water park has two types of season passes. Plan A costs a one-time fee of $147

vredina [299]

Answer:

I hate my math teacher

Step-by-step explanation:

I just hate him

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2 years ago

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Find the product of −3/5 x −1.5.

lilavasa [31]

2+_3/458 find the product

6 0

3 years ago

Solve the system of linear equations using elimination. <br><br> −2x − y = 3<br> −9x − y = 17

Maurinko [17]

-2×-y=3-9×-y=17

=2×+9×=1y+1y=17+3

11×=2y=20

11=y=20÷2

11y=10

y=10/11

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3 years ago