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kondaur [170]
3 years ago
7

X2 + 8x + 4 = 0 please help

Mathematics
1 answer:
hodyreva [135]3 years ago
8 0

Answer:

x= -3/4 or x= 0.75

Step-by-step explanation:

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Which of the following are perpendicular to the line y=-1/3x+5 (three answers)
Mkey [24]
Y = -1/3x + 5....slope here is -1/3. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So ur perpendicular line will have a slope of 3.

y = 3x....has a slope of 3, so this is perpendicular.
3x - y = 2.....y = 3x- 2.....has a slope of 3 and is therefore perpendicular
3x - y = 6.....y = 3x - 6...has a slope of 3 and is perpendicular

6 0
3 years ago
The table shows the width and length of different pictures that Katie has enlarged for the school yearbook:
Y_Kistochka [10]

Answer:

24 inches

Step-by-step explanation:

Pattern for the length is time 6.

Do 6 x 4, which will equals 24  

Our Answer is- 24 inches.

Another way:

6 - 10 =  +6

12 - 18 =  +6

18 -24 =  +6

Therefore- 18 - 24 = +6

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7 0
3 years ago
You invest $1,000 in an account that earns 4.5%
PIT_PIT [208]

Investing $1000, compounding the interest once in a year will yield a final Amount of $1,935.28.

Given data

Principal = $1000

Rate = 4.5%

Time = 15 years

Calculation Steps:

First, convert R as a percent to r as a decimal

r = R/100

r = 4.5/100

r = 0.045 rate per year,

Then solve the equation for A

A = P(1 + r/n)^nt

A = 1,000.00(1 + 0.045/1)^(1)(15)

A = 1,000.00(1 + 0.045)^(15)

A = $1,935.28

Summary:

The total amount accrued, principal plus interest, with compound interest on a principal of $1,000.00 at a rate of 4.5% per year compounded 1 times per year over 15 years is $1,935.28.

Learn more about compound interest here:

brainly.com/question/24924853

3 0
3 years ago
The sum of the measures of the interior angles of a convex polygon is 2160. how many sides does the polygon have?
horsena [70]
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
2,160 = (sides -2) * 180
2,160 / 180 = sides -2
12 = sides -2
sides = 14
Source:
http://www.1728.org/polygon.htm

</span>
4 0
3 years ago
What's the answer to 3.75 ✖️4
ycow [4]
15, use your calculator
4 0
3 years ago
Read 2 more answers
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