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adelina 88 [10]
3 years ago
15

15. True or False: Is x = 4 a solution to X + 51 = -9 True False

Mathematics
2 answers:
lora16 [44]3 years ago
4 0

Answer:

False

Step-by-step explanation:

if x=4 the answer would not be -9

x+51 would add up to 55

so it would be : 4+51=55

now if we wanted the answer to be -9 , x would have to be different

-60+51=-9

but in this case x is no -60, it's 4, so no this statement is false.

frosja888 [35]3 years ago
3 0
It is false as
X = 4
4+51 is not equal to -9
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If P(n) and Q(n) are polynomials of degree j and k, respectively, then the series
Naya [18.7K]

Answer:

converges

Step-by-step explanation:

well the two polynomials in the series are 1 and n^8 (I'm assuming the +7 is not in the decimal but it seems to not matter). The degree of the polynomial 1 is 0 which can be represented by 1x^0. The second polynomial in the denominator has a degree of 8. So j = 0  and k = 8. Since 0 < (8-1)

0 < 7 the series converges

6 0
2 years ago
$49.95 CD player 5%tax
denpristay [2]
Adding the tax?
 
to add taxes it requires only two steps:
1) multiply the price by the tax as a Decimal (tax must be in decimal form)
2) add what you get after multiplying to the original price
 So..
1) 49.95(.05) = 2.497
 
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So the whole price is $52.45

**you can also round the 49.95 to 50 before doing the math to make it easier**
6 0
3 years ago
∠a and ∠b are complementary angles ∠a measures 78°<br><br> What is the measure of ∠b?
Furkat [3]

Good evening ,

Answer:

∠b = 12°

Step-by-step explanation:

∠a and ∠b are complementary angles ⇔ ∠a + ∠b = 90

Then ∠a =90 - ∠b = 90 - 78 = 12°

:)

4 0
4 years ago
If you were applying for a job and the boss said: “We have 7 employees and the average salary is $100,000,” would you hope that
frosja888 [35]
Mode, because mode is the number that shows up most often. 
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4 years ago
Plzzzz need answers​
earnstyle [38]

Answer:

1. (x,y)→(y,-x)

2. (x,y)→(-y,x)

3. (x,y)→(-x,-y)

Step-by-step explanation:

1. Rotation 90° clockwise (or 270° counterclockwise) about the origin changes x into y and y into -x, so it has the rule

(x,y)→(y,-x)

2.  Rotation 90° counterclockwise (or 270° clockwise) about the origin changes x into -y and y into x, so it has the rule

(x,y)→(-y,x)

3.  Rotation 180° clockwise  about the origin changes x into y and y into -x, so it has the rule

(x,y)→(-x,-y)

Here you can apply rotation by 90° clockwise twice, so

(x,y)→(-y,x)→(-x,-y)

3 0
3 years ago
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