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kvv77 [185]
3 years ago
5

Factor 2x^2-4x-30 completely. A. 2(x-5)(x+3) B. (2x-5)(x+3) C. (2x+3)(x-5) D. 2(x-3)(x+5)

Mathematics
1 answer:
OLEGan [10]3 years ago
4 0

Answer:

<h2>2(x - 5)(x + 3)</h2>

Step-by-step explanation:

2x^2-4x-30\\\\=2\cdot x^2-2\cdot2x-2\cdot15\\\\=2(x^2-2x-15)\\\\=2(x^2+3x-5x-15)\\\\=2[x(x+3)-5(x+3)]\\\\=2(x+3)(x-5)

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What is the image point of (-4, 2) after a translationm left 2 units and up 3 units?
GuDViN [60]

Answer:

(-6,5)

Step-by-step explanation:

left 2 = x-2

up 3= y+3

8 0
2 years ago
How do I simplify? x2 – 4 divided by x2 + 5x + 6. When working with Functions
user100 [1]

Answer:

Step-by-step explanation:

Factor the numerator and the denominator to get

\frac{(x+2)(x-2)}{(x+2)(x+3)}\\ \\ \text{The (x+2) terms cancel out leaving}\\ \\ \frac{x-2}{x+3}

4 0
3 years ago
mary ann spent $26.85 total on two new toys. She had a coupon for 1.00 off her total purchase and spend 1.75 on sales tax. Each
GalinKa [24]

Answer: $13.80

Step-by-step explanation:

Mary ann spent $26.85 total on two new toys but had a coupon for $1.00 off her total purchase. Therefore, we subtract $1.00 from $26.85. This will be:

= $26.85 - $1.00

= $25.85

Shw then spend $1.75 on sales tax. Total coat will now be:

= $25.85 + $1.75

= $27.60

Since each toy coat same amount, therefore each toy will cost:

= $27.60 / 2

= $13.80

3 0
2 years ago
Please answer correctly and no links​
krek1111 [17]

Answer:

-6.825 (-2 33/40). hope this helps

Step-by-step explanation:

- Zombie

4 0
2 years ago
A car rental costs $32 as a base fee, plus $28 per day. Use the explicit rule f (n )= 28n + 32
alexdok [17]

Answer:

The charges paid for the first four days are:

  • <u>$144</u>.

Step-by-step explanation:

To obtain the charges paid for the first 4 days, you must use the given explicit rule given:

  • f (n) = 28n + 32

Where:

  • <em>n = Number of days the person rents the car.</em>

As we need to obtain the charges to 4 days, we replace this value in the explicit rule:

  • f (n) = 28n + 32
  • f (4) = 28(4) + 32
  • f (4) = 112 + 32
  • <u>f (4) = 144</u>

With these calculations, <u>you can identify the charges paid for the first 4 days are $144</u>, <em>where $112 is the money by each day of the four days and $32 is the base fee</em>.

3 0
3 years ago
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