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katrin2010 [14]
3 years ago
8

How do I factor 16x^2 and -49y^2??

Mathematics
1 answer:
jeyben [28]3 years ago
8 0
(4x-7y)(4x+7y)

4x times 4x= 16x^2
-7y times 7y= -49y^2
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What is the weekly earnings of $4.75 per hour, 37 hours if all hours over 50 are paid time and a half?
Stels [109]

37* 4.75 =175.75

no overtime since there are no hours over 50

Answer: $175.75


7 0
3 years ago
3x + 2 = 14<br> Which number makes the equation true?<br><br> 1<br> 2<br> 2<br> 4<br> 6
mrs_skeptik [129]

Answer:

x=4

Step-by-step explanation:

3x+2=14\\\\3x+2-2=14-2\\\\3x=12\\\\\displaystyle \frac{3x}{3}=\frac{12}{3}\\ \\ x=4

7 0
1 year ago
Find the value of X(2x + 4) (2x-9)
kotykmax [81]

2x +4)° 2x-9)°= 4x  2 +8x−9=3

 Pull out like factors :

  2x + 4  =   2 • (x + 2) (4 • (x + 2) • x) -  9

4x • (x + 2) -  9

Factoring  4x2+8x-9  

The first term is,  4x2  its coefficient is  4 .

The middle term is,  +8x  its coefficient is  8 .

The last term, "the constant", is  -9  

Step-1 : Multiply the coefficient of the first term by the constant   4 • -9 = -36  

Step-2 : Find two factors of  -36  whose sum equals the coefficient of the middle term, which is   8 .

     -36    +    1    =    -35  

     -18    +    2    =    -16  

     -12    +    3    =    -9  

     -9    +    4    =    -5  

     -6    +    6    =    0  

     -4    +    9    =    5  

     -3    +    12    =    9  

     -2    +    18    =    16  

     -1    +    36    =    35

x=3

6 0
2 years ago
Read 2 more answers
Question 4 plz show ALL STEPS
scoray [572]

Part (a)

Locate x = -1 on the x axis. Draw a vertical line through this x value until you reach the f(x) curve. Then move horizontally until you reach the y axis. You should arrive at y = 4. Check out the diagram below to see what I mean.

Since f(-1) = 4, this means we can then say

g( f(-1) ) = g( 4 ) = 4

To evaluate g(4), we'll follow the same idea as what we did with f(x). However, we'll start at x = 4 and draw a vertical line until we reach the g(x) curve this time.

<h3>Answer:  4</h3>

==========================================================

Part (b)

We use the same idea as part (a)

f(-2) = 5

g( f(-2) ) = g(5) = 6

<h3>Answer:  6</h3>

==========================================================

Part (c)

Same idea as the last two parts. We start on the inside and work toward the outside. Keep in mind that g(x) is now the inner function for this part and for part (d) as well.

g(1) = -2

f( g(1) ) = f(-2) = 5

<h3>Answer:   5</h3>

==========================================================

Part (d)

Same idea as part (c)

g(2) = 0

f( g(2) ) = f( 0 ) = 3

<h3>Answer:  3</h3>

6 0
2 years ago
Admira is painting a rectangular banner 2 1/4 yards wide on a wall in the cafeteria. The Banner will have a blue background. Adm
bagirrra123 [75]
The solution to the problem is as follows:

<span>Area=h×w

</span><span>1(1/2) = h × 2 (<span>1/4)

</span></span><span>⟹3/2 = h × <span>9/4

</span></span><span>h = 3/2 ÷ <span>9/4

</span></span><span>Therefore, the height will be 2/3 yards if we use all the blue paint.
</span>

I hope my answer has come to your help. Have a nice day ahead and may God bless you always!
8 0
3 years ago
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