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3 years ago

The difference of two numbers is 9 and the sum of the numbers is 55. what are the numbers?

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

3 0

The two numbers I think is 3&6 because this is a trick question

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Describe the transformation of g(x) = -f(x) + 6

alukav5142 [94]

Answer:

Step-by-step explanation:

the "-" sign simply turns everything upside-down. what was above the x-axis is now below it. and vice versa. hence, a reflection over the x-axis.

the "+6" moves then everything up by 6 units. which is a vertical shift up by 6 units.

3 0

2 years ago

What is the rational number equivalent to 1 point 28 with a bar over 28? 1 and 6 over 97 1 and 28 over 99 1 and 8 over 33 1 and

katrin2010 [14]

In algebra, the conversion of a more complex number to a simpler mixed number is rather simple. For the repeated numbers, which are designated by the bar above them, we simply have to put over 9 for each number repeated and 0 for the non-repeated numbers.

In this item, we have 1.28 with bar above 28 signifying that the number can also be written as 1.28282828.... The mixed number is then equal to,
<em>1 and 28/99 or 1 and 28 over 99</em>

Therefore, the answer to this item is the second choice.

7 0

3 years ago

Read 2 more answers

The time a basketball player spends in the air when shooting a basket is called the "hang time." the vertical leap l measured i

Marina86 [1]

Dénote l the vertical leap, then the given equation can be written like this:
$l(t)=4t^2\\\text{Since one inch equate 0.0833333 feet then 44 inches equate }\\44\times 0.0833333=3.6feet\\\text{Add to 33 feet like this:}\\33+3.6=36.6feet\\\text{Now we have to solve the equation:}\\4t^2=36.6\\\text{Divide over 4 we get:}\\t^2= \frac{36.6}{4}=9.15\\\text{Take the square root we get:}\\t=\sqrt{9.15}=3$

The hang time equates then 3 seconds

7 0

3 years ago

For a house call, a veterinarian charges $70, plus $40 an hour. A. Write an equation that represents the total fee y y (in dolla

Elodia [21]

Answer:

Let x represents the hours and y represents the total fees(in dollars)

As per the statement:

(a)

For a house call, a veterinarian charges $70, plus $40 an hour

"$40 an hour" means 40x

then;

the equation we get;

$y = 40x + 70$ .....[1]

(b).

Find the x-intercept.

x-intercept states that the graph cross the x-axis.

Substitute y = 0 in the equation and solve for x;

we get;

$x = -\frac{7}{4}$

y-intercept states that the graph crosses the y-axis i.e

Substitute x= 0 in the equation and solve for y;

$y =70$

Therefore, x-intercept and y-intercept of equation [1] are:

$-\frac{7}{4}$ and 70

5 0

3 years ago

Calculate the average rate of change of f(x) = x2 4 - 5 for 3 ≤ x ≤ 5. A) -2 B) - 4 3 C) 4 3 D) 2

mario62 [17]

Answer:

D)2

Step-by-step explanation:

ƒ(x) = x²/4 - 5; 3 ≤ x ≤ 5

Calculate the values of f(3) and f(5)

f(3) = 3²/4 - 5 = 9/4 - 5 = -2.75

f(5) = 5²/4 - 6 = 25/4 - 5 = 1.25

Calculate the average rate of change

Rate of change = (y₂ - y₁)/(x₂-x₁) = [1.25 -(-2.75)]/(5 - 3) = 4.00/2

= 2.00

The average rate of change is 2.00.

In the figure below, the red curve represents the function ƒ(x), while the black dashed line represents the average rate of change over the interval (3, 5).

The value of ƒ(x) increases by two units for every unit that x increases.

6 0

3 years ago