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devlian [24]
3 years ago
11

Can someone please help me

Mathematics
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

B

Step-by-step explanation:

x²+2x=19 add 1 to both sides which gives you x²+2x+1=20

x²+2x+1 is the same as (x+1)²

Therefore (x+1)²=20

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Your parents allow you to have Internet access on your cell phone as long as you prepay the bill. If your bill is $17.50 per wee
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2.5 dollars a day

Step-by-step explanation:

17.5 /7 in calculator

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3 years ago
HELP PLSSS ASAP!!!!!!!!
neonofarm [45]

Answer:

x = 5.5

Step-by-step explanation:

PM = MR

4x - 12 = -2x + 21         {add 2x to both the sides}

4x - 12 + 2x = -2x + 2x + 21

6x - 12 = 21         {Add 12 to both sides}

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6 0
3 years ago
Read 2 more answers
Vasco needs to know the area of the four-pointed star
Rama09 [41]

Answer:

Step-by-step explanation:

Find the area of the base

The base is a square.

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s = 1.5

Area = 1.5^2

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Area of 1 triangle

h = 2.4

b = 1.5

Area = 1/2 * b * h

Area = 1/2 * 1.5 * 2.4

Area = 1.8 cm^2

Area of 4 triangles

Area = 4 * area of 1 triangle

Area = 4 * 1.8

Area = 7.2

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7 0
3 years ago
Three shirts and two pairs of pants cost $40. Four shirts and one pair of pants cost
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Answer:

Step-by-step explanation:

3s + 2p = 40

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3s + 2p = 40

-5s = -35

s = $7.00 for a shirt

7 0
4 years ago
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