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bonufazy [111]
3 years ago
15

Factorise: 3x^2 + 3x 2x + 2

Mathematics
2 answers:
pentagon [3]3 years ago
8 0
1. 3x^2 + 3x + 0 
3x(x + 1)

2. 2x + 2
2(x + 1)


salantis [7]3 years ago
6 0
3x² + 3x

3*x*x + 3*x

3x( x + 1)


2x + 2

2*x + 2*1

2(x + 1)

Hope this explains it.
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Cornyia swims a 1/2 mile every 1/4 hour how long will it take to swim 2/ 1/2 miles
Pavlova-9 [17]

Answer:

I'm unsure what the final fraction is but if you comment it I'll reply with the answer

Step-by-step explanation:

every hour she travels 2 miles, so in 30 minutes she will travel 1 mile, hopefully that can help

5 0
3 years ago
Analyze the diagram below and complete the instructions that follow.<br><br> Find the value of x.
xenn [34]

Answer: I believe the answer is C.

Step-by-step explanation: In special case isosceles right triangles the hypotenuse is always equal to a · √2. With a=5√2 we can set up the equation 5√2 · √2 = 10.

8 0
3 years ago
Find two numbers such that the sum of the first and three times the second is 5 and the sum of the second and two times the firs
Sav [38]

Answer:

first number= 19/5

second number= 2/5

Step-by-step explanation:

first number= a

second number= b

a+3b=5   equation 1

b+2a=8  equation 2

using equation 2 we have

b=8-2a

using equation 1 we have

a+3(8-2a)=5  

a+24-6a=5

24-5=6a-a

19=5a

a=19/5 = first number

so using b=8-2a

we have

b=8-2(19/5)

b=8-(38/5)

b=2/5 = second number

4 0
3 years ago
A metallurgist has one alloy containing 45% copper and another containing 69% copper. How many pounds of each alloy must be use
lakkis [162]

5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more variables and numbers.

Let x represent the amount of 45% copper and y represent the amount of 66% copper needed to make 42 pounds of a third alloy containing 66% copper. Hence:

x + y = 42   (1)

Also:

0.45x + 0.69y = 42(0.66)   (2)

This gives:

x = 5.25, y = 36.75

5.25 pounds of one alloy containing 45% copper and 36.75 pounds of 69% copper is used to make 42 pounds of 66% copper

Find out more on equation at: brainly.com/question/2972832

#SPJ1

8 0
2 years ago
I need help pleassee
AnnyKZ [126]
I'm not sure but I think it is the first one
3 0
3 years ago
Read 2 more answers
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