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2 years ago

Can someone help me with this math homework please!

Mathematics

1 answer:

love history [14]2 years ago

3 0

1. f(-6)=8

2.-2

3. 4

Hope this helps you...

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Factor Completely: 25x2 - 64

prohojiy [21]

This is a difference of perfect squares which is of the form:

(a^2-b^2)

And which always factors to:

(a-b)(a+b)

In this case:

(5x-8)(5x+8)

6 0

3 years ago

4x + 3y = 6 3x + 5y = -1 Solve the simultaneous equations. y= z=

Kisachek [45]

Answer:

x=3, y= -2

Step-by-step explanation:

Multiplying :

(4x+3y =6)*-3

(3x+5y =-1)*4

-12x -9y= -18

12x+20y= -4

Add the equations

20y-9y = -4-18

11y = -22

y= -22/11 = -2

3x +5* -2= -1

3x -10 = -1

3x = 10-1

x= 9/3 =3

4 0

2 years ago

Which of the following expression is equivalent to sin(5x) ?

RSB [31]

$Use:\\sin(x+y)=sinxcosy+sinycosx\\-------------------------\\sin5x=sin(3x+2x)=sin3xcos2x+sin2xcos3x\\\\Answer:e)$

5 0

2 years ago

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Find the first term and common ratio for the geometric sequence a2 =2.5,a4=62.5

fenix001 [56]

Answer:

a1 = 0.5; common ratio = 5

Step-by-step explanation:

Let the common ratio = r

a2 = 2.5

a3 = 2.5r

a4 = 2.5r * r = 2.5r^2

We are told a4 = 62.5, so

2.5r^2 = 62.5

Divide both sides by 2.5

r^2 = 25

r = 5

a2 = a1 * r

a1 = a2/r = 2.5/5 = 0.5

Answer: a1 = 0.5; common ratio = 5

6 0

2 years ago

Let A = {0,1,2,3,4,5} B = {2,4,6,8} C= {1,3,5,7} Verity (AUB) UC=AU (BUC)

Angelina_Jolie [31]

Hope this will help u.

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3 0

3 years ago

Read 2 more answers