4 years ago

A letter that represents a number

Mathematics

1 answer:

shtirl [24]4 years ago

7 0

That would be a variable, x being one of the most commonly used variables to represent unknown numbers.

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Find the length of x

zavuch27 [327]

Answer:

7/2 =x

Step-by-step explanation:

The triangles are similar so we can write a ratio to solve

2 4

---- = -------

x 7

Using cross products

2*7 = 4x

14 = 4x

14/4 = 4x/4

7/2 =x

3 0

3 years ago

Read 2 more answers

Can someone actually help and not tell me to use google. thanks.

solmaris [256]

Answer:

i deserved these

Step-by-step explanation:

3 0

3 years ago

Graph the linear equation. 3x−4y=12<br><br> Please show it on a graph

baherus [9]

Answer: The graph is attached.

Step-by-step explanation:

By definition, the line intersects the y-axis when $x=0$ .

Then, in order to find the y-intercept, substitute $x=0$ into the equation and solve for "y":

$3(0)-4y=12\\\\y=\frac{12}{-4}\\\\y=-3$

By definition, the line intersects the x-axis when $y=0$ .

Then, in order to find the x-intercept, you can substitute $y=0$ into the equation and then you must solve for "x". Then you get:

$3x-4(0)=12\\\\x=\frac{12}{3}\\\\x=4$

Knowing that the line passes through the points $(0,-3)$ and $(4,0)$ , you can graph it (The graph is attached).

5 0

4 years ago

Simplify the expression:<br> 3j+10j

igor_vitrenko [27]

Answer:

13j

Step-by-step explanation:

3+10=13

5 0

3 years ago

Read 2 more answers

Wyatt analyzed the data from his science experiment and found that the MAD was greater than the IQR. What does this tell you abo

damaskus [11]

Answer:

The correct option is C

Step-by-step explanation:

The average variation is spread out more than the middle 50% of the data.

6 0

4 years ago