2 years ago

If f(x) = x2 – 2x + 3, then find f(-3).

Mathematics

1 answer:

Georgia [21]2 years ago

7 0

Answer:

f(-3) = 18

Step-by-step explanation:

We need just substitute x with (-3) and calculate it.

f(-3) = (-3)² -2*(-3) + 3 = 9 + 6 +3 = 18

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Simplify the expression. 8x^-10 y^'6 -2x^2y^-8 Write your answer without negative exponents.

sergij07 [2.7K]

Answer:

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^{14} - 2x^{12}}{x^{10}y^8}$

Step-by-step explanation:

Given

$8x^{-10}y^6 - 2x^2y^{-8}$

Required

Simplify

Rewrite as:

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^6}{x^{10}} - \frac{2x^2}{y^8}$

Take LCM

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^6*y^8 - 2x^2 * x^{10}}{x^{10}y^8}$

Apply law of indices

$8x^{-10}y^6 - 2x^2y^{-8} = \frac{8y^{14} - 2x^{12}}{x^{10}y^8}$

8 0

2 years ago

Who had this before if so can I get help

telo118 [61]

2*3+4=10

5+2x2=9

4-3+2=3

4*3+2=14

20-4x3+6=14

16-30/2+11=12

24/6*5=20

15/5+2=5

2+2*9-5=15

12-3+4*2=1

12/3+3*4=16

9-6/3=7

16-3*4=4

36/4/9=1

The last one is yours

6 0

2 years ago

The first one is it right or wrong?

gayaneshka [121]

The first one is wrong

(do you need help solving it?)

3 0

2 years ago

Point Kis on line segment JL. Given JL = 4x + 2, KL=5x– 6, and JK = 3x, determine the numerical length of JK.

Salsk061 [2.6K]

Answer:6

Step-by-step explanation:

6 0

2 years ago

The blueprint for the Daly Daly's living room has a scale of 2 inches=3 feet. The family wants to use a scale of 1 inch equals

denpristay [2]

Answer:

5X ft

Step-by-step explanation:

Given the new scale of 1 inch equals = 5 feet

let $X$ denote the width of the living room on the blueprint.

To find the width of the living room:

$Width=Blueprint \ Dimensions \times scale\\\\=X times 5ft\\\\=5X \ ft$

Hence the living room has a width of 5X ft

7 0

3 years ago