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Nikolay [14]
3 years ago
10

What is the square root of √64/25 A) 8/5 B) -8/5 C) ±8/5 D) ±320/125

Mathematics
1 answer:
horsena [70]3 years ago
5 0

Answer:

C) ±8/5


Step-by-step explanation:

Both the numerator and the denominator are positive squares (8 is the square root of 64, and 5 is the square root of 25). Finding the square root of both the numerator and the denominator will yield the simplified fraction ±8/5.

Remember: the square roots of a positive square are always both positive and negative. The square root of \sqrt{4} is 2 (2^{2} =4) and -2 (-2^{2} =4)

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What are the coefficients in the polynomial 7x^2 -4x+6
alisha [4.7K]
7 and -4

Coefficients are the numbers before a variable, meaning that 7 and -4 (be careful of that subtraction sign) are the coefficients. Additionally if you were asked what the leading coefficient was the answer would be 7 because it has the greatest exponent attached to it (2).
8 0
3 years ago
The graph highlights two other points on the trend line. Use them to find another equation for the trend line shown for this sca
frutty [35]

Option A:

The equation for the trend line is y = 82x + 998.

Solution:

The points on the line are (2, 1162) and (11, 1900).

Here, x_1=2, y_1=1162, x_2 = 11, y_2=1900

Slope of the line:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

$m=\frac{1900-1162}{11-2}

$m=\frac{738}{9}

m = 82

Point-slope formula:

y-y_{1}=m\left(x-x_{1}\right)

y-1162=82\left(x-2\right)

y-1162=82x-164

Add 1162 on both sides of the equation.

y=82x+998

The equation for the trend line is y = 82x + 998.

Hence Option A is the correct answer.

4 0
2 years ago
John has 6 pancils, 3 blue pens, 5 black pens, and 2 red pens in a cup on his desk Without looking, John pulls a writing utensil
Katen [24]

Answer:

john has a 6 out of 10 chance of picking a pencil

4 0
3 years ago
Read 2 more answers
2. SALES TAX Olivia purchases a DVD movie priced
Nataly_w [17]

Answer:

$23.42

Step-by-step explanation:

  • To find the sales tax, you need to 6.5% of $21.99
  • To do this you have to times need to turn 6.5% into a decimal, which is 0.065 (i moved decimal point 2 numbers to the left)
  • then you do 0.065 × 21.99 which equals 1.42935
  • now you have to add 21.99 with 1.42935 = 23.41935
  • because of the context of the question, you need the answer needs to be rounded up to the nearest hundredth.
  • making the answer $23.42 total
8 0
3 years ago
Please Help. ASAP!!
Ratling [72]

Answer:

Equation:   x + (x+ 1) = 67

Step-by-step explanation:

We want to find two consecutive integers.

Let them be labeled as  x and x + 1

We want  x + (x + 1) = 67

x is the smaller number

x + 1 is the largest

We can solve for x.

x + (x + 1) = 2x + 1 = 67

2x = 66

x = 33

The largest integer is 34

3 0
2 years ago
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