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3 years ago

What is -2(4n - 1) +15 I think that it is -8n - 13 but i am not sure plz help

Mathematics

1 answer:

ANEK [815]3 years ago

8 0

Answer: Your right!

-8n-13

Step-by-step explanation:

-2(4n-1)+15=

-8n+2-15

Combine like terms- 2-5= -13

so -8n-13

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Click “show your work” and graph the absolute value function shown below. f(x) =|x – 4| + 1

AVprozaik [17]

Answer: here u go

Step-by-step explanation:

4 0

3 years ago

What is the first four terms in the multiplication or ,geometric , pattern in which the first term is 2 and then each term is mu

kirza4 [7]

Answer:

Sequence will be 2, 14, 98, 686.

Step-by-step explanation:

Since we know in an geometric sequence the terms are in the form are

$T_{n}=a(r)^{n-1}$ in which

a = first term

r = common ratio

n = number of term

Now from this expression we can all terms of the sequence

in which a = 2 and common ratio r = 7

The sequence will be

$2, 2.(7), 2.(7)^{2},2.(7)^{3}$

Or 2, 14, 98, 686

So the answer is 2, 14, 98, 686.

7 0

4 years ago

3 & 5 please step by step

BlackZzzverrR [31]

Answer:

#3=51. #5=85

Step-by-step explanation:

#3. PEMDAS

(2-10×6)-7

PARENTHESIS FIRST

MULTIPLICATION FIRST

10×6=60

60-2=58

58-7=51

#5. PEMDAS

(12-11)+12×7

PARENTHESIS FIRST

12-11=1

1+12×7

MULTIPLICATION FIRST

12×7=84

84+1=85

4 0

3 years ago

The cost of a pair of jeans was changed from $47 to $42.13. what was the percent change?l

My name is Ann [436]

Answer:

10.4%

Step-by-step explanation:

$\$47 \:to \: \$42.13\\\\47 - 42.13\\\\= \$4.87\\\\= \frac{4.87}{47} \times 100\\\\\frac{487}{47} \\\\=10.36 \\= 10.4 \%$

6 0

3 years ago

Which line is perpendicular to the given equation: y=2x+17

pentagon [3]

Answer:

$\large\boxed{y=-\dfrac{1}{2}x+b,\ \text{wher}\ b\in\mathbb{R}.}$

Step-by-step explanation:

$\text{Let}\ k:y=m_1x+b_1,\ l:y=m_2x+b_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\l\ \parallel\ k\iff m_1=m_2\\==========================\\\\\text{The slope-intercept form of an equation of a line:}\\\\y=mx+b\\\\m-slope\\b-y-intercept\\==========================\\\\\text{We have the equation of the line:}\ y=2x+17\to m_1=2.\\\\\text{Therefore}\ m_2=-\dfrac{1}{2}.\\\\\text{The equation of a line:}\ y=-\dfrac{1}{2}x+b,\ \text{wher}\ b\in\mathbb{R}.$

8 0

3 years ago