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yarga [219]
3 years ago
5

Use the distributive property to expand the expression. (5x + 6y) − (3z + 4)

Mathematics
2 answers:
KatRina [158]3 years ago
6 0
5x + 6y - 3z - 4

the negative makes everything in the second set of parentheses negative <span />
vaieri [72.5K]3 years ago
5 0

5x + 6y − 3z − 4

Because


(5x + 6y) − (3z + 4)

(5x + 6y) + (−1)(3z + 4)

5x + 6y + (−1)(3z) + (−1)(4)

5x + 6y − 3z − 4

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A ship takes 18 days to reach its designated part. It starts with food for its crew
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Answer:

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Step-by-step explanation:

4 0
3 years ago
? Write 126 as a product of primes. Use index notation when giving your answer.​
Talja [164]

Answer:

2 x 7 x 3²

Step-by-step explanation:

When finding primes, you use the method I attatched as a picture. Start with the large number at the top, slowly dividing it by factors of it.

The picture shows that the primes 126 is a product of is:

2, 7, 3, 3

Or:

2 x 7 x 3 x 3

This can be simplified into:

2 x 7 x 3²

Hope this helps!

7 0
3 years ago
Read 2 more answers
Can this please be worked out so I can have a better understanding?
larisa86 [58]

Step-by-step explanation:

no, no, you use the equation to identify a, b and c.

then you use the formula with these values to get the solutions to the equation (the values of x for which the equation delivers 0).

always remember, a quadratic equation always has 2 solutions. sometimes at least one of them are not a real number, sometimes the 2 springs are equal, ...

x² - 4x - 2 = 0

a, b, c are the factors of the terms in x and the constant term.

so,

a = 1

b = -4

c = -2

x = (-b ± sqrt(b² - 4ac))/(2a)

x = (4 ± sqrt((-4)² - 4×1×-2))/(2×1) =

= (4 ± sqrt(16 + 8))/2 = (4 ± sqrt(24))/2 =

= (4 ± sqrt(4×6))/2 = (4 ± 2×sqrt(6)) / 2 =

= 2 ± sqrt(6)

x1 = 2 + sqrt(6)

x2 = 2 - sqrt(6)

6 0
2 years ago
Read 2 more answers
Which line is parallel to y= -52 + 6 and passes through (4, -2)?
Alexxandr [17]

Answer:

\[y=-5x+18\]

Step-by-step explanation:

Given that the line is parallel to \[y = -5x + 6\]

Hence the slope of the line is given by -5

Hence the equation of the required line can be represented by \[y = -5x + c\]

This line passes through (4,-2). Substituting:

\[-2 = -5 * 4 + c\]

=> \[-2 = -20 + c\]

=> c = 20-2 = 18

So the required equation of the line is given by : \[y = -5x + 18\]

From the given options, option 3 is the correct one.

8 0
4 years ago
Layla wants to build a wooden box with a volume of 450 cubic centimeters. She started with a width of 10cm and a height of 3cm.
puteri [66]

Answer:

Stop cheating and do your own work....

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Step-by-step explanation:

7 0
3 years ago
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