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irinina [24]
3 years ago
13

Solve for x8x²-5 = 11​

Mathematics
1 answer:
geniusboy [140]3 years ago
5 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x = √ 2 , − √ 2

Decimal Form:

x = 1.41421356 , − 1.41421356

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The straight line L has the equation 4y=5x+3
solniwko [45]

Answer:

y = -4/5x + 2/5

Step-by-step explanation:

4y=5x+3\\write -in ; y=mx+b -form\\y = \frac{5}{4}  x + \frac{3}{4} \\m = 5/4\\m_1m_2 = -1\\5/4m_2 =-1\\m_2 = -4/5\\ (3,-2)\\x = 3\\y = -2\\y = mx+b\\-2 = -\frac{4}{5}(3) +b\\-2 = -12/5 +b\\-2+12/5 = b\\2/5 = b\\m = -4/5\\Substitute -new-values-into-slope-intercept-form\\y = mx+b\\y = -4/5x + 2/5

6 0
3 years ago
Figure LMNP will be reflected across the y-axis. Place the point on the graph that represents
zimovet [89]

Answer:

If it's reflected on the y-axis, the answer for N would be (-2,-3).

5 0
3 years ago
You are assigned 32 math exercises for homework. You complete 87.5 of these before dinner. How many do you have left to do after
VARVARA [1.3K]

Answer:

4

Step by step:

This is if the question is saying you completed 87.5% of the exercises. Otherwise, I don't know what it is asking.

87.5% of 32=28

32-28=4

6 0
3 years ago
Andrea Is selling candles as a fundraiser she spent $50 on supplies for making the candles she plans to sell candles for $10 eac
dalvyx [7]

COMPLETE QUESTION:

Andrea is selling candles as a fundraiser. She spent $50 on supplies for making the candles. She plans to sell the candles for $10 each. Her profit can be modeled by C(x) = 10x - 50.

What type of function is this?

What is the domain and range of the function?

Answer:

- This function is one-to-one

- Domain D = {x: x is a whole number ≤ Z}

- Range R = {y: y is in -50, ..., (10Z - 50)}

Where Z is the number of candles she could produce with $50.

Step-by-step explanation:

Given that her profit is modeled by C(x) = 10x - 50

- This function is one-to-one, because it is in the form f(x) = y.

Let the number of candles she could make with $50 be Z.

Then the domain is the set of all whole numbers less or equal to Z.

D = {x: x is a whole number ≤ Z}

If there are infinite number of candles she could make with that money, then

D = (-infinity, infinity)

When x = 0, we have C = -50

When x = Z, we have C = 10Z - 50

The range is then given as

R = whole numbers from -50 up to (10Z - 50)

R = {y: y is in (50 -Z), ..., (10Z - 50)}

If there are infinite number of candles she could make with that money, then

R = (-infinity, infinity)

6 0
3 years ago
Rewrite the following equation in slope-intercept form. 18x − 19y = -20
pantera1 [17]
Slope intercept form

6 0
3 years ago
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