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3 years ago

Can someone please help with question 3? I'll mark Brainliest.

Mathematics

1 answer:

Citrus2011 [14]3 years ago

7 0

Answer:

sorry but i don't know this i'm really sorry

Step-by-step explanation:

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If (x) =7-3x, determine the value of x when f(x)=16.

melomori [17]

Answer:

f=16/7.3x

Step-by-step explanation:

Lets solve for f:

f(7.3)=16

Step 1:Divide both sides by 7.3x

7.3f/7.3x=16/17.3x

f=16/7.3x

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3 years ago

Find three solutions of the equation y = 9x - 4.

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First one; substitute x into the equation and see if the result equal y in the coordinate

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3 years ago

When two variables have an inverse relationship, the slope is?

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When two variables have an inverse relationship, the slope is negatively correlated.

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3 years ago

Find the slope of the line that passes through (4,2) and (9,1)?

pshichka [43]

Answer:

The slope of the line is $\displaystyle -\frac{1}{5}$ .

Step-by-step explanation:

We are given two coordinate points:

$(4, 2)$
$(9, 1)$

We are asked to find the slope of the line.

We can use the rise-over-run formula to solve for the slope of the line.

$\displaystyle \text{slope} = \frac{\text{rise}}{\text{run}}\\\\\text{slope} = \frac{y_2-y_1}{x_2-x_1}$

However, we firstly need to name our coordinate points.

In math, we can label our coordinates using the following label system:

$(x_1, y_1), (x_2, y_2)$

Therefore, we can also label our coordinates as such:

$x_1 = 4$
$y_1 = 2$
$x_2 = 9$
$y_2 = 1$

Now, we can supply these values into the formula and solve for our slope, or a better known variable, <em>m</em>.

$\displaystyle m = \frac{1 - 2}{9 - 4}\\\\m = \frac{-1}{5}\\\\m = -\frac{1}{5}$

Therefore, our slope is $\displaystyle -\frac{1}{5}$ .

8 0

3 years ago

Read 2 more answers

For Valentine's Day, Kelsey got a box of 24 chocolates. After one week, she'd eaten 5/8 of them. How many chocolates had Kelsey

Readme [11.4K]

Answer:

She had eaten 15 chocolates.

Step-by-step explanation:

$\frac{5}{8} * 24 = \frac{120}{8} = 15$

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3 years ago