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2 years ago

Which of these is the algebraic expression for "seven less than some number?" Fraction 7 over h Fraction h over 7 h − 7 7 − h

Mathematics

2 answers:

Olin [163]2 years ago

6 0

Let's assume the some number be h.

Now the given statement is "seven less than some number".

Which means we need to take out 7 from h. Hence, it can be translate into an algebraic expression as h-7.

Lady bird [3.3K]2 years ago

4 0

Answer: h − 7

Step-by-step explanation:

Hi, to answer this question we have to analyze the information given:

Some number will be represented with the letter h.

So, seven less means that we have to subtract seven to "some number" (h)

Mathematically speaking:

h-7

The correct option is h-7

Feel free to ask for more if needed or if you did not understand something.

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3x - 4y = -15 ; 4x +3y =5

Kipish [7]

Using elimination method to find y
3x - 4y = -15 (multiply 4)
4x + 3y = 5 (multiply 3)
------------------------------------
12x - 16y = -60
12x + 9y = 15
--------------------- - (substract)
-25y = -75
y = 3

Using subtitution method to find x
3x - 4y = -15
3x - 4(3) = -15
3x - 12 = -15
3x = -3
x = -1

The solution (-1,3)

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3 years ago

the track at east side high school is 440 yards long it took maya 10 min to jog around the track 4 times. find her speed in mile

SashulF [63]

Her speed i think is 40 miles per hour

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2 years ago

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Please answer asap this person made a mistake what is the error and correct solution to this problem

stiv31 [10]

Answer:

Step-by-step explanation:

Hello, please consider the following.

$(4+x)^2=4^2+2\cdot 4\cdot x+x^2=16+\boxed{8}x+x^2\\\\\text{ ... and not ...}\\\\16+\boxed{4}x+x^2$

So the correct equation becomes.

$x^2+64=16+8x+x^2\\\\8x=64-16=48\\\\\text{ we divide by 8 both sides of the equation.}\\\\x=\dfrac{45}{8}=6$

Hope this helps.

Do not hesitate if you need further explanation.

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2 years ago

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Find the slope of the line that passes through the pair of points. F(–6, 8), P(–6, –5)

mariarad [96]

First, let's take a look at the formula to figure this out.

m = y2 - y1/x2 - x1

y2 would be -5, and y1 would be 8. -5 - 8 = -13.

x2 is -6, and x1 is also -6. -6 - -6 would be -12.

So, now we must divide -13 and -12, which results in 1 1/12.

4 0

2 years ago

The graph of the function f is shown. The domain of f is [0,50]. What is the range of g(x)=4f(x)?

sergij07 [2.7K]

Answer:

The range of $g(x)$ is $[0,7]$ .

Step-by-step explanation:

We must remember that range of function $f(x)$ corresponds to the set of values of $y$ in the graph (+y direction). Given that $g(x)$ is a stretched version of $f(x)$ , the range of $g(x)$ corresponds to the range of $f(x)$ multiplied by 4. Then,

$Ran\{g(x)\} = 4\cdot Ran\{f(x)\}$

$Ran\{g(x)\} = 4\cdot [0,1.75]$

$Ran\{g(x)\} = [0, 7]$

The range of $g(x)$ is $[0,7]$ .

4 0

3 years ago