Answer is the last choice
2a-4/1= -a-1/a-4
Cross multiply
(2a-4)(a-4)= -(a-1)
2a^2-8a-4a+16= -a+1
Bring right to left sign change signs
2a^2-8a-4a+16+a-1=0
Combine like terms
2a^2-11a+15=0
a= 2 b= -11 c= 15
Use quadratic formula
-b+-sq rt of b^2-4ac. Divided by 2a
-(-11) +- 11^2-4(2)(15) divided by 2(2)
11+-sq rt 121-120 divided by 4
11+1 /4. 11-1/4
12/4. 10/4
3. , 5/2
You'll want to convert 3 2/3 into a common denominator with 1/4.
The nearest common denominator of 3 and 4 is 12.
1/4 * 3/3 = 3/12
2/3 * 4/4 = 8/12
You need 3 and 8/12 in total so subtract 3/12 from 3 8/12 to get the flour
3 8/12 - 3/12 = 3 5/12.
You would need 3 5/12 cups of flour.
Answer:
theres nothing to answer
Step-by-step explanation:
Answer:
Phrase : "the product of 19 and a number"
Mathematical expression : 19A
Step-by-step explanation:
Phrase : "the product of 19 and a number"
The product of two numbers a and b can be written as a x b =ab
<u>To find Mathematical expression
</u>
Let A be a number,
The product of number with 19 can be written as
19 x A = 19A
Therefore the given phrase "the product of 19 and a number" as a mathematical expression =19A
Answer:
9:11
Step-by-step explanation:
well 11 and 9 can be simplified so......
