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1 year ago

Which is the graph of f(x) = }(4)*2

Mathematics

1 answer:

zavuch27 [327]1 year ago

5 0

Answer: D

Step-by-step explanation:

Where the x-intercept is 0.25.

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2. Which of the following ordered pairs (x,y) satisfies the system of equations below?

bixtya [17]

Answer:

b(2,-2)

Step-by-step explanation:

x= 2 and y=-2

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3 years ago

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dem82 [27]

Answer:

First and second

Step-by-step explanation:

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3 years ago

Brenda buys a shirt for $40. She has a coupon for 25% off. What is 25% of $40?

tia_tia [17]

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3 years ago

Read 2 more answers

X^2 - y^2 = 100

luda_lava [24]

Answer:

Step-by-step explanation:

Let's start by rewriting the second equation in terms of "x":

$x+y=5$

Subtract y from both sides:

$x=5-y$

Now, substitute "5-y" for "x" in the first equation:

$(5-y)^2-y^2=100$

Note that:

$(a-b)^2=a^2-2ab+b^2$

$25-10y+y^2-y^2=100$

Cancel out like terms:

$25-10y=100$

Subtract 25 from both sides:

$-10y=75$

Divide both sides by -10

$y=\frac{75}{-10}=\frac{15}{-2}=-\frac{15}{2}$

Now, substitute this value back into either of the equations to solve for x.

$x+y=5\\x-\frac{15}{2}=5\\$

Add 15/2 to both sides:

$x=5+\frac{15}{2}\\x=\frac{10}{2}+\frac{15}{2}\\x=\frac{25}{2}$

Now, find the difference:

$x-y=\frac{25}{2}-(-\frac{15}{2})=\frac{25}{2}+\frac{15}{2}=\frac{40}{2}=20$

8 0

2 years ago

Let m=4 and n=36. What is the value of m+.9?

Anna11 [10]

Answer:
4.9

Explanation:
We are given m = 4 and n = 36 and the expression m + .9.

Replace m with the given value:
4 + .9

Add them together:
4.9

3 0

2 years ago