Answer:
The firston one is a scale factor of two and the second one is a scale factor of three.
Step-by-step explanation:
You just look at the coordinates. (1,1):(2,2) and (4,0):(8,0) and then for the second one (-1,0):(-3,0) and (3,2):(9,6).
1x2=2
4x2=8
-1x3=-3
3x3=9
2x3=6
Answer:
2x^2-6x-4
Step-by-step explanation:
(7x2 + 4x - 9)
-(5x2 + 10x - 5)
=
7x^2-5x^2=2x^2
4x-10x=-6x
-9-(-5)=-4
thus, your answer is 2x^2-6x-4
Answer:
= 4.44948
or = 
<em>step by step...solving </em>
<em>10 + 4</em>
<em />
<em>add/subtract </em><em>² = 6</em>
<em>=10 + 4</em><em> + </em><em>² - 6</em>
<em>Refine</em>
<em>= </em><em> ² + 4</em><em> + 4</em>
<em>rewrite </em><em>↑</em><em> as </em><em>² + 2</em><em> * 2 + 2²</em>
<em>apply Perfect Square Formula (a + b)² = a² + 2ab +²</em>
<em>a = </em><em>, b=2</em>
<em>= (</em><em> + 2)²</em>
<em>= </em>
<em>2square </em>
<em>(the 2 square would not fit like i wanted it to)</em>
<em>apply radical rule </em>![\sqrt[n]{a^{n} } = a](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Ba%5E%7Bn%7D%20%7D%20%3D%20a)
<em>, assuming a ≥ 0</em>
<em>= </em>
<em />
posting others as picture (have an account with Symbolab to help me as well. Just taking too long to type in the step by step if you need it. all pictures have the decimal result.
20% as a fraction is 1/5
25% is 1/4
40% is 2/5
and 70% is 7/10
Depending on what your fraction is, you can find the answer in the fraction itself-
20%, you can take 20, 5 times to get to 100. Hence 1/5.
25 can go into 100 4 times (1/4)
40 is just 20 twice, so its 2/5.
Take 10 7 times and get 7/10.
Hope this helps a bit :)
Answer:
$6.66
Step-by-step explanation:
You just take $19.99 and divide it by 3. Your answer is then 6.663.
