Answer: The expression factors to (2x - 1)(5x + 4)
In a rectangle the area is L x W. So if we know the area is 10x^2 + 3x - 4, then all we have to do is factor it to find possible values for the L and W.
If you factor the expression by grouping, you will get (2x - 1) and (5x + 4).
Your questions asks for possible dimensions, you could give the two expressions as dimensions.
If you wanted to select a value for x, you could plug it in and get values that could be dimensions.
For example if you let x = 10, you would have a rectangle that has a width of 19 and a length of 54.
7(4 + 5) = 63
28 + 35 fits the criteria for your question.
Answer: 90%
Step-by-step explanation: To write a fraction as a percent, first remember that a percent is a ratio of a number to 100.
So to write 9/10 as a percent, we need to find a fraction
equivalent to 9/10 that has a 100 in the denominator.
We can do this by setting up a proportion.
So we have 
.
Now, we can use cross-products to find the missing value.
So we have (9)(100) which is 900 <em>is equal</em> to (10)(n) or 10n.
So we have 900 = 10n.
Next, dividing both sides of the equation by 10, we have <em>90 = n</em>.
So, 9/10 is equal to 90/100 or 90%.
Answer:
1.33 or 4/3
Step-by-step explanation:
6/3 ×2/3
2/3× 2/1
= 4/3
=1.33
B because you multiply every number by 4.
Ex. 30 x 4 = 120
120 x 4 = 480
480 x 4 = 1,920
1,920 x 4 = 7,680
Hopefully that helps you :)
