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2 years ago

Which of the following equations cannot be solved using real numbers?

Mathematics

1 answer:

dsp732 years ago

4 0

Answer:

x²+4=0

Step-by-step explanation:

x²=-4

√x² = √-4

x = 2i

x is an imaginary number

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If the cube root parent function is horizontally stretched by a factor of 4, then translated 5 units right and 3 units up, write

Gala2k [10]

Answer:

The cube root parent function:

f(x) = $\sqrt[3]{x}$

Horizontally stretched by a factor of 4:

g(x) → f(1/4x) = $\sqrt[3]{1/4x}$

Translated 5 units right:

h(x) → g(x - 5) = $\sqrt[3]{1/4x - 5}$

Translated 3 units up:

k(x) → h(x) + 3 = $\sqrt[3]{1/4x - 5} + 3$

5 0

2 years ago

Pleaseeee help me ASAP.

alekssr [168]

Answer:

m = -2

Step-by-step explanation:

Slope formula ---

m = y2-y1/x2-x1

m = 5-9/8-6

m = -4/2

m = -2

5 0

2 years ago

PLEASE TRY TO HELP I'M STRUGGLING

Anvisha [2.4K]

Answer:

Step-by-step explanation:

The equation of a straight line can be represented in the slope intercept form as

y = mx + c

Where

m = slope = (change in the value of y in the y axis) / (change in the value of x in the x axis)

The equation of the given line is

7x+4y=3

4y = - 7x + 3

y = -7x/4 + 3/4

Comparing with the slope intercept form, slope = -7/4

If the line passing through the given point is perpendicular to the given line, it means that its slope is the negative reciprocal of the slope of the given line.

Therefore, the slope of the line passing through (6,-9) is 4/7

To determine the intercept, we would substitute m = 4/7, x = 6 and y = -9 into y = mx + c. It becomes

- 9 = 4/7×6 + c = 24/7 + c

c = - 9 - 24/7 = -87/7

The equation becomes

y = 4x/7 - 87/7

6 0

2 years ago

Read 2 more answers

Identify any restrictions on the variable.

Wittaler [7]

Answer:

x=mc2 + 86

Step-by-step explanation:

4 0

1 year ago

1.) Which domain restrictions apply to the rational expression? 14x-2x / x^2-7x

mezya [45]

Answer:

3. $\displaystyle 1\frac{1}{3} = x$

2C. $\displaystyle III.$

2B. $\displaystyle I.$

2A. $\displaystyle II.$

1. $\displaystyle Set-Builder\:Notation: [x|7, 0 ≠ x] \\ Interval\:Notation: (-∞, 0) ∪ (0, 7) ∪ (7, ∞)$

Step-by-step explanation:

3. See above.

2C. The keyword is ratio, which signifies division, so you would choose "III.".

2B. The keyword is percent, which signifies multiplication of a ratio by 100, so you would choose "I.".

2A. The keyword is total, which signifies addition, so you would choose "II.".

1. Base this off of the denominator. Knowing that the denominator CANNOT be zero, you will get this:

$\displaystyle x^2 - 7x \\ x[x - 7] = 0; 7, 0 = x \\ \\ Set-Builder\:Notation: [x|7, 0 ≠ x] \\ Interval\:Notation: (-∞, 0) ∪ (0, 7) ∪ (7, ∞)$

I am joyous to assist you anytime.

5 0

2 years ago