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3 years ago

Need help with understanding table of ordered pairs , I have two left and that's basically all.

Mathematics

1 answer:

azamat3 years ago

8 0

Answer:

Step-by-step explanation:

The easiest way to figure this out is to substitute in the variables. So for a, 2=-5+7 is correct, and 7=0+7 is correct as well. If you were to look at the other answers, you would see that the equation would not match up. Hope this helps!

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Each vertical cross-section of the triangular

Blizzard [7]

Answer:

The vertical height is $h=3\ units$

Step-by-step explanation:

we know that

In the right triangle ABC

see the attached figure

To find the height h apply the Pythagoras Theorem

$c^{2}=a^{2}+b^{2}$

we have

$c=AB=3\sqrt{2}\ units$

$a=BC=6/2=3\ units$

$b=AC=h\ units$

substitute

$(3\sqrt{2})^{2}=3^{2}+h^{2}$

$18=9+h^{2}$

$h^{2}=18-9=9$

$h=3\ units$

3 0

2 years ago

Read 2 more answers

Solve this please <br><img src="https://tex.z-dn.net/?f=2x%20%2B%203%20%5Cleqslant%20x%20%2B%205" id="TexFormula1" title="2x + 3

Nastasia [14]

Answer:

x ≤ 2

Step-by-step explanation:

Isolate the variable, x. Note the ≤ sign, treat it like an equal sign, what you do to one side, you do to the other.

First, subtract 3 and x from both sides:

2x (-x) + 3 (-3) ≤ x (-x) + 5 (-3)

2x - x ≤ 5 - 3

Simplify:

2x - x ≤ 5 - 3

x ≤ 2

x ≤ 2 is your answer.

6 0

3 years ago

What is the ratio of 15 to 21

Step2247 [10]

Answer:

Ratio: 15:9

hope this helps :)

4 0

3 years ago

Read 2 more answers

If the function f(x) = (2x - 3)2 is transformed to g(x) = (-2x - 3), which type of transformation occurred?

san4es73 [151]

Answer:

A. horizontal reflection

Step-by-step explanation:

Given:

$f(x)=(2x-3)^2$

$g(x)=(-2x-3)^2$

To identify the type of transformation.

Solution:

On close observation of the functions we find the that sign of $x$ has changed in $g(x)$ with other terms being constant.

<em>Thus, the transformation statement can be given as:</em>

$f(x)\rightarrow f(-x)$

As:

$f(x)=(2x-3)^2$

$f(-x)=(2(-x)-3)^2= (-2x-3)^2 = g(x)$

The transformation $f(x)\rightarrow f(-x)$ describes horizontal reflection of function across the y-axis.

Thus, $f(x)$ is horizontally reflected across y-axis to get $g(x)$ .

8 0

3 years ago

A car takes 65.1 seconds to travel 1 mile. How long does it take the car to travel 4.3 miles? First round to the nearest whole

Elodia [21]

279.93 ≈ 280 seconds or 4 minutes 40 seconds

3 0

2 years ago