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Anna [14]
3 years ago
9

How do you solve the following equation. Make sure to use evidence as to how you got your answer.

Mathematics
1 answer:
vampirchik [111]3 years ago
8 0
22 :)

Two negatives make a positive therefore the equation is just 15+7 which is 22.
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Which of the following shows the best way to set up the product of (2x - 5) and<br> (4 - 3x + 4.)?
masha68 [24]

Answer:

  C

Step-by-step explanation:

It usually works best to use the polynomial with fewer terms as the multiplier. A row of partial products is written for each term of the multiplier, so the fewer terms will result in fewer rows of partial products.

In order to keep like terms together, it is preferable to allocate a separate column of the multiplication tableau to each power of the operands or product. This means we want to make note of the fact that the cubic multiplicand has a coefficient of 0 for its x^2 term.

The best setup is the one shown in the attachment.

3 0
2 years ago
Write an equation of the line that passes through the given points.<br> (-1,7) and (4, -8)
djverab [1.8K]

Answer:

y=-3x+4

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-8-7)/(4-(-1))

m=-15/(4+1)

m=-15/5

m=-3

y-y1=m(x-x1)

y-7=-3(x-(-1))

y-7=-3(x+1)

y=-3x-3+7

y=-3x+4

3 0
3 years ago
What is the number three thousand eighty expressed in scientific notation?
valentinak56 [21]

Answer:

3.08 x 10^{3}

Step-by-step explanation:

3080 = 3.08 x 1000 = 3.08 x 10^{3}

6 0
3 years ago
SAM now has 30ml of pop to share equally into glasses.
crimeas [40]
So whole ml's


30 mls
find what 30 is evenly divisble by
factor 30
30=2 times 3 times 5
therefor
30 is divisble by 2,3,5,6,10,15

so he can divide the glass into 2 sevings which is 30/2=15 ml in each

servings    ml         fraction
2              15            15/30=1/2
3              10              10/30=1/3
5                6             6/30=1/5
6              5                5/30=1/6
10               3              3/30=1/10
15              2              2/30=1/15
7 0
3 years ago
Given a term in a geometric sequence and the common ratio, find the explicit formula, a11=5120 ans r=-2
sweet-ann [11.9K]

Answer:

U_n=5(-2)^{n-1}

Step-by-step explanation:

Given a geometric sequence, the nth term of the geometric sequence is obtained by using the formula:

U_n=ar^{n-1}

If the eleventh term, a_{11}=5120

and the common ratio, r=-2.

Then:

5120=a(-2)^{11-1}\\a=\frac{5120}{2^{10}} =5

The explicit formula for the sequence is:

U_n=5(-2)^{n-1}

5 0
3 years ago
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