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kramer
3 years ago
11

• Solve using the quadratic formula 2x2 + 11x +15= 0

Mathematics
1 answer:
artcher [175]3 years ago
3 0

Answer:

x=-5/2, -3

Step-by-step explanation:

2x^2+11x+15=0

factor out the trinomial

(2x+5)(x+3)=0

zero property,

2x+5=0, x+3=0

2x=0-5=-5, x=-5/2

x=0-3=-3

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An accessories store sells $8 custom socks and $11 custom hats. If 11 items were sold on Monday, and the
Vanyuwa [196]

Answer:

7 socks were sold

Step-by-step explanation:

7*8=56

11-7=4

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56+44=100

This proves the answer of 7 to be correct

7 0
2 years ago
How many solutions are there to the equation below?
Scrat [10]

Answer:

B

Step-by-step explanation:

6x + 30 + 4x = 10(x+3)

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3 0
3 years ago
What do i do here and plz help me answer this
stepladder [879]

Answer:

for number 1, you plug -3 in for x in the equation. and for number 2, you plug in 2 for y in the equation. you do this to find the missing values of the variables.

1. y= -10

2. x= -1

Step-by-step explanation:

i hope this helps :)

5 0
3 years ago
Read 2 more answers
What is a simpler form of the expression?<br><br> (2n^2 + 5n +3)(4n - 5)
coldgirl [10]

Answer:

8n³ + 10n² - 13n - 15

Step-by-step explanation:

Distribute the factors by multiplying each term in the first factor by each term in the second factor, that is

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= 8n³ + 20n² + 12n - 10n² - 25n - 15 ← collect like terms

= 8n³ + 10n² - 13n - 15

5 0
3 years ago
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A map has a scale of 1 cm to 16 km.
ra1l [238]
1cm = 16km

1cm • x = 23.1cm
x = 23.1

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The real distance is 369.6km.
4 0
3 years ago
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