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sammy [17]
2 years ago
7

If y = x² + 2x + 3, find the value of y when x = -1

Mathematics
1 answer:
BARSIC [14]2 years ago
5 0

Answer:

y = 2

Step-by-step explanation:

Given

y = x² + 2x + 3 ← substitute x = - 1

y = (- 1)² + 2(- 1) + 3 = 1 - 2 + 3 = 2

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Surface area of solid cuboid 8cm 6cm 2cm
strojnjashka [21]

Answer:

152 \text{cm}^2

Step-by-step explanation:

We know that the total surface area of a cuboid is the sum of the  surface area of all six of its faces.

We also know that each opposing side has the same surface area. Thus the total surface area is equal to:

2*(8*6+8*2+6*2)\\\\=2*(48+16+12)\\=2*76\\=152(\text{cm}^2)

6 0
2 years ago
for his long-distance phone service, Kareem pays a $2 monthly fee plus $0.12 per minute. Last month, Kareem's long-distance bill
beks73 [17]
$13.52-$2=$11.52

11.52 \div 0.12 = 96

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8 0
3 years ago
Hey! Please help me
mafiozo [28]

Answer:

Exact: 10.08

To 1 decimal place: 10.1

Step-by-step explanation:

Just ask.

Hope this helps.

3 0
2 years ago
What are two solutions of 3 + 4 |x/2 + 3| = 11?
Alex
3 + 4abs(x/2 + 3) = 11 Subtract 3
4 abs(x/2 + 3) = 11 - 3
4 abs(x/2 + 3) = 8 Divide by 4
abs(x/2 + 3) = 8/4
abs(x/2 + 3) = 2

Solution 1
x/2 + 3 = 2 Subtract 3
x/2 = 2 - 3
x/2 = - 1 Multiply by 2
x/2 *2 = - 2
x = - 2

Solution 2
x/2 + 3 = - 2
x/2 = - 2 - 3
x/2 = - 5 Multiply by 2
x = -5 * 2
x = -10

Solutions
x = - 2 <<<< answer 1
x = -10 <<<< answer 2

3 0
3 years ago
What is the domain associated with?
artcher [175]

Answer:

A domain name (often simply called a domain) is an easy-to-remember name that's associated with a physical IP address on the Internet. It's the unique name that appears after the at sign in email addresses, and after 3 w's in web addresses.

Step-by-step explanation:

i hope this helps :) if not sorryyy

4 0
3 years ago
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