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vlada-n [284]
4 years ago
8

Maths question: Expand 3x (2x-1)

Mathematics
1 answer:
scZoUnD [109]4 years ago
3 0
<span>Expand 3x (2x-1)

3x outside must </span>multiply both terms inside the brackets:

= 6x^2 - 3x

Hope it helps
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Arrow is planning to bake approximately 305 cookies. If 3 pounds of cookie dough make 96 cookies, how many pounds of cookie doug
murzikaleks [220]

Answer:   10

Step-by-step explanation: 96 divided by 3 is 32  

32 x 10 = 320 you can't get exactly 305.

7 0
3 years ago
In one baseball season, Peter hit twice the difference of the number of homeruns Alice hit and 6. Altogether, they hit 18 homeru
m_a_m_a [10]
In order to solve this problem, the approach should be formulating equations such that they form a system of linear equations. Let's start by assigning variables. Let x be the number of homeruns made by Peter, and y be the number of homeruns made by Alice. Therefore,

x = 2(y - 6)

This is the equation for the relationship between Peter's and Alice's hits. The second equation would be the sum of their hits:

x + y = 18

These are the two independent equations in order to solve the two unknowns, x and y. Substituting the first equation into the second equation,

2(y - 6) + y = 18
2y - 12 + y = 18
3y = 18 + 12
3y = 30
y = 10

Using y=10 to the first equation:
x = 2(10 - 6)
x = 8

Therefore, Peter made 8 homeruns, while Alice made 10 homeruns for a total of 18.
7 0
4 years ago
Evaluate 2x − 2 for x = 0, x = 1, and x = 2.
Oksana_A [137]

Answer:

-2, 0, and 2

Step-by-step explanation:

<u>For x=0: </u>

2(0) -2

0-2

-2

<u>For x=1:</u>

2(1)-2

2-2

0

<u>For x=2:</u>

2(2)-2

4-2

2

5 0
3 years ago
Read 2 more answers
In triangle JKL, if m
romanna [79]

Answer:

\angle L = 52\\\\\angle J = 45\\\\\angle K = 83

Step-by-step explanation:

\angle J = \angle L-7\\\\\angle K=2\angle L-21\\\\\angle L = \angle L

we know that

\angle K +\angle J + \angle L =180 by the sum of interior angles of a triangle

so we have

(\angle L -7)+(2\angle L -21)+(\angle L)=180

we can simplify

(\angle L + 2\angle L + \angle L)+(-7-21)=180\\\\4\angle L -28=180\\\\4\angle L=180+28\\\\4\angle L = 208\\\\\angle L = 52

and now we find the other angles

\angle J = \angle L -7\\\\=52-7\\\\=45

\angle K = 2\angle L -21\\\\=2(52)-21\\\\=104-21\\\\=83

4 0
3 years ago
Graph the line that represents this equation:y=-2/3x +1
maksim [4K]

Answer:

(attached below)

Step-by-step explanation:

I have attached what your graph should look like with 1 being the y intercept and -2/3 being your slope

8 0
3 years ago
Read 2 more answers
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