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3 years ago

Given g(x)=-x-2, find g(1)

Mathematics

1 answer:

konstantin123 [22]3 years ago

6 0

Answer:

G(x)=−12x2−2x

Step-by-step explanation:

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If f(x)= 3x2- 2x + 3 then find what f(3) is equal to

Anettt [7]

Answer:

Answer is 24

Step-by-step explanation:

$given \: f(x) = 3 {x}^{2} - 2x + 3 \\ to \: find \: f(3) \ : \: ? \\ f(3) = 3( {3}^{2} ) - 2(3) + 3 \\ = 3(9) - 6 +3 \\ = 27 - 3 \\ = 24$

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5 0

2 years ago

Read 2 more answers

ΔEFG is located at E (0, 0), F (−7, 4), and G (0, 8). Which statement correctly classifies ΔEFG?

MariettaO [177]

Answer:

ΔEFG is an isosceles triangle.

Step-by-step explanation:

Given:

E (0, 0),

F (−7, 4),

G (0, 8)

ΔEFG

Solution:

Distance formula

Distance d = $\sqrt{(x_2-x_1)^2 +( y_2-y_1)^2$

Step 1: Finding the length of EF

By using distance formula,

$EF = \sqrt{(-7 - 0)^2 + (4-0)^2}$

$EF = \sqrt{(49) + (16)}$

$EF = \sqrt{(49) + (16)}\\EF = \sqrt{65}\\$

Step 2: Finding the length of FG

By using distance formula,

$FG = \sqrt{(0-(-7))^2+(8-4)^2}\\FG = \sqrt{(7)^2 +(4)^2}\\FG = \sqrt{49 +16}\\FG = \sqrt{65}$

Step 2: Finding the length of GE

$GE= \sqrt{(0-0)^2 + (0-8)^2}\\\\GE =\sqrt{(-8)^2}\\GE = \sqrt{64}\\GE = 8$

Thus we could see that the sides EF = FG

So it is a isosceles triangle.

6 0

2 years ago

Solve the following system of equations by the substitution method.

Dahasolnce [82]

Answer:

Step-by-step explanation:

5x=y+6 --------- equ 1

2x-3y=4 -------- equ 2

5x - 6 = y

y = 5x - 6

substitute in equ 2

2x-3(5x - 6) =4

2x - 3*5x + 3*6 = 4

2x - 15x + 18 = 4

- 13x = 4 - 18

-13x = -14

x = -14/-13

x = 14/13

substitute in equ 1

5*14/13 = y+6

70/13 - 6 = y

y = ( 70 - 78)/13

y = -8/13

6 0

2 years ago

Construction worker’s planned to secure a tall pole using two cables attached to the pole at a point 12 m above the ground as sh

padilas [110]

Answer:(24+12\3)m

Step-by-step explanation:

6 0

2 years ago

The decay constant of a radioactive element is -0.533 per minute. If a sample of the element weighs 50 grams, what will be its w

Stels [109]

$y=50e^{-0.533\times2}\approx17.2192\text{ g}$

7 0

3 years ago