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4 years ago

A number increase by its product with 7 equals 48. Find the number.

1 answer:

4 0

Let a number = n

n(7) = 48

isolate the n. Divide 7 from both sides

n(7)/7 = 48/7

n = 48/7

Divide

n = 6.857 is your answer

hope this helps

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Part A: Which student simplified the expression incorrectly? Explain the errors that were made or the formulas that were misused

larisa86 [58]

The student B simplified the expression incorrectly the solution for the student B will be $Sin^2 \theta$

<h3>What is trigonometry?</h3>

The branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.

Correct Solution for the student B will be:

$=\dfrac{\dfrac{1}{Cos \theta}-Cos\theta}{sec\theta}$

$=\dfrac{\dfrac{1-Cos^2\theta}{Cos\theta}}{ \dfrac{1}{Cos\theta}}$

$=1-Cos^2\theta$

$=Sin^2\theta$

Hence the student B simplified the expression incorrectly the solution for the student B will be $Sin^2 \theta$

To know more about trigonometry follow

brainly.com/question/24349828

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2 years ago

If using the method of completing the square to solve the quadratic equation

Pepsi [2]

Answer:

$\frac{289}{4}$

Step-by-step explanation:

$(\frac{-b}{2a})^{2} = (\frac{-17}{2}) ^2 = \frac{289}{4}$

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3 years ago

There are twice as many cows as goats on a farm. All the cows and goats have a total of 1,116 legs. How many goats are there?

amm1812

Answer:

372 goats

Step-by-step explanation:

let the nuber of goat = x

number of cow = 2x

x+2x = 1116

3x =1116

x=1116/3 =372

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3 years ago

Identify an equation in slope-intercept form for the line perpendicular to y = –1/2x + 11 that passes through (4, –8).

Sophie [7]

Answer:

y = 2x - 16

Step-by-step explanation:

perpendicular lines = have negative-reciprocal slope

slope: -1/2 => negative-reciprocal => 2 ↓ slope

substitute (4, -8) and the slope 2 into the slope-intercept form(y = mx + b) to find b:

=> -8 = 2(4) + b => b = -16

plug in the slope 2 and b = -16 to the slope-intercept form:

y = 2x - 16

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3 years ago

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zmey [24]

Yes i think the evidence

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3 years ago

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