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3 years ago

Find all numbers that must be excluded from the domain of each rational expression? 7/x-3

1 answer:

7 0

Domain is the numbers yo can use
yo can't user numbers that make undefined stuff like sqrt of a negative number or division by 0

assuming
7/(x-3), find what value is restricted
denomenator cannot be 0
find what makes is 0
x-3=0
x=3

3 must be restricted

if it was (7/x)-3, then the restricted value would be 0

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Find the equation of the line with slope = 2 and passing through (-3 , 4)

coldgirl [10]

Answer:

y = 2x + 10

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 2. thus

y = 2x + c ← is the partial equation

To find c substitute (- 3, 4) into the partial equation

4 = - 6 + c ⇒ c = 4 + 6 = 10

y = 2x + 10 ← equation of line

8 0

2 years ago

Read 2 more answers

Decide whether the triangles are similar. If so, determine the appropriate expression to solve for x.

ser-zykov [4K]

Answer:

The last answer is correct.

Step-by-step explanation:

3 0

1 year ago

PLEASE HALP ALL MY POINTS AND BRAINIEST

amm1812

Answer:

around 120

Step-by-step explanation:

3 0

2 years ago

I need 3 questions answered please.

kakasveta [241]

Answer:

$3) \: \: 113 {ft}^{2}$

$4) \: false$

$5) \: 70 {ft}^{2}$

Step-by-step explanation:

3) Area of a circle is

$\pi \times {r}^{2}$

Where r = 6

Thus,

$area = \frac{22}{7} \times {6}^{2}$

$area = \frac{22}{7} \times 36$

$area = 3.143 \times 36$

$area = 113 {ft}^{2} \: (nearest \: whole \: number)$

4) False

Area of a circle is measured by the formula below:

$area = \pi \times {r}^{2}$

5) The formula for calculating the area of a rectangle is given thus:

$area \: of \: a \: rectangle = l \times w$

Where, l = 10ft; w = 7ft

$area = 10ft \times 7ft = 70 {ft}^{2}$

8 0

3 years ago

Suppose the average yearly salary of an individual whose final degree is a master's is $(blank) thousand less than twice that

cupoosta [38]

Complete question :

Suppose the average yearly salary of an individual whose final degree is a master's is $41 thousand less than twice that of an individual whose final degree is a bachelor's. Combined, two people with each of these educational attainments earn $118 thousand. Find the average yearly salary of an individual with each of these final degrees.

Answer:

Bachelors = $53000

Masters = $65000

Step-by-step explanation:

Given that :

Let Salary of bachelor's degree holder = b

Salary of Master's degree holder = 2b - 41000

Master's + bachelor's salary = $118,000

Hence,

2b - 41000 + b = 118,000

3b = 118000 + 41000

3b = 159000

b = 159000 / 3

b = $53,000

Bachelor's degree salary = $53,000

Master's degree salary ; 2b - 41000

2(53000) - 41000 = 65000

4 0

3 years ago