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lianna [129]
3 years ago
15

Simplify 12n-2n⁴-10n-2n⁴+na. 4n⁴+3nb. 3nc. -4n⁴+3nd. -n¹¹

Mathematics
2 answers:
levacccp [35]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Serjik [45]3 years ago
3 0

The answer is C. -4n⁴+3n.


Separate the expression by its like terms.

12n-2n⁴-10n-2n⁴+n

12n+(-10n)+n=3n

-2n⁴+-2n⁴=-4n⁴


The simplified expression comes out to -4n⁴+3n.

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Hector is flying a kite. He has let out 86 feet
Kaylis [27]

Answer:

Hector's kite is 61.84 feet from the ground.

Step-by-step explanation:

The angle of elevation of the kite is 42°15’30” when converted to decimals, it is 42.258333^{0} ≅ 42.26^{0}

Let the height of the kite to the horizontal of angle of elevation be represented as x. Applying the trigonometric function to the sketch of Hector's kite,

Sin θ = \frac{opposite}{hypotenus}

Sin 42.26^{0} = \frac{x}{86}

⇒ x = 86 x Sin 42.26^{0}

      = 86 x 0.6725

     = 57.835

x ≅ 57.84 feet

The height of Hector's kite from the ground = x + 4

                                    = 57.84 + 4

                                   = 61.84 feet

7 0
3 years ago
Each of the statements contains a blunder. In each case, choose the statement that correctly explains the blunder. (a) "There is
Vikki [24]

Answer:

Correlation requires both variables to be quantitative.

Step-by-step explanation:

The correlation coefficient measures the strength of relationship between two quantitative variables. In the given scenario correlation between sex of American workers and their income is computed and indicated that there is a high correlation between them. The sex of American worker is a categorical variable or a qualitative variable while income of American worker is a quantitative variable. The correlation between a quantitative variable and a qualitative variable can't be computed. So, the statement explains the blunder in the given scenario is "Correlation requires both variables to be quantitative".

4 0
3 years ago
A container holds 13 quarts of water. How much is this in gallons?
patriot [66]

Answer:

3 1/4 gallons or 3.25 gallons

Step-by-step explanation:

6 0
3 years ago
PLEASE HELP ME!!!!
antiseptic1488 [7]

Answer:

OBC= 15

OCR =30

In OBQ

OBQ + QOB + OQB = 180

OBQ= OBC=15

OQB= 90

SO, QOB = 180- OBQ- OQB

= 180-15 -90

= 75

c) is correct

5 0
3 years ago
Read 2 more answers
Help answer true or false
Sindrei [870]
5 and 6 are true but 7 is not true. If you divide an odd number by 2 it's not going to be half of it
4 0
2 years ago
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