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nadya68 [22]
3 years ago
14

Is -9 a rational number? yes no

Mathematics
2 answers:
Genrish500 [490]3 years ago
8 0

Answer:yes

Step-by-step explanation:

it can  be writtin as a ratio thefor it is a rational number

Contact [7]3 years ago
5 0

Answer:

yes

Step-by-step explanation:

it is a rational number because it's a whole number vs. a fraction or decimal

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Is X-1 a factor of x^5-1?
Musya8 [376]

Answer: No

Explanation:

According to factor theorem, if f(x)=0 then x is a factor of the given function or equation.

As x-1 is a factor

We equate x-1=0

x=1

Substituting in x^5-1, we have 1^5-1 =1-1=0.

Hence, it's a factor.

When coming to x^5+1, it would become 1^5+1=1+1=2

So x-1 isn't a factor of x^5+1.

4 0
2 years ago
A and B are complementary angles. If m_A = (6x + 29) and m
Liono4ka [1.6K]

Answer:

m∠A=77°

Step-by-step explanation:

Complementary angles are a pair of angles whose measures have a sum of 90°. Since m∠A = 6x+29 and m∠B = x+5, we can write the following equation to solve for x:

6x+29+x+5=90

Solving for x, we get:

6x+29+x+5=90

7x+34=90 (Simplify LHS)

7x+34-34=90-34 (Subtract 34 from both sides of the equation to isolate x)

7x=56 (Simplify)

\frac{7x}{7}=\frac{56}{7} (Divide both sides of the equation by 7 to get rid of x's coefficient)

x=8

Therefore, m∠A=6x+29=6(8)+29=48+29=77°. Hope this helps!

6 0
3 years ago
Read 2 more answers
An initial investment of $60.00 increases in value by 15% each year. Which of the following statements are true? Select all that
aivan3 [116]
The situations can be represented by the exponential function f(x)=60x1.15^x
After 7.86 years the value of the investment will be three times the initial value (If you round to the nearest dollar)
After 8 years the value of the investment will be $184.00 (If you round to the nearest dollar)
3 0
4 years ago
Read 2 more answers
How to solve -2x+2y=6 +4x+2y=-5 using elimination
MariettaO [177]
7. {-5, -1, 3, 7, 11}<span>
8. 3
9. one solution
10. (2, -3)
11. 7=2x+3

</span>
5 0
4 years ago
Danica has a -$23 balance in her bank account. She gets paid $40 for cutting grass and immediately up deposit. How much money do
salantis [7]

Danica has -$23, but deposits $40

Add the two numbers

40 + (-23) = 40 - 23 = 17

Danica has $17 in her bank.

hope this helps

3 0
4 years ago
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