How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet?
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When you say 32 more than something, you are basically adding:
32 more than 3 = 35
32 more than 16 = 48
etc.
So, even though you have a letter, it is the same concept...
32 more than d = 32 + d
Into an expression makes...
x = 32 + d
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You then divide the numerator(top) by the denominator(bottom)
Your answer is
A.
x ≥ –1
B.
x ≤ –1
C.
x ≤ –2
D.
x ≥ –2
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The expression for the money deposited in the bank is 500 + 40m and it will take 7 months to get the required amount.
What is compound interest?
The compound interest is a form of interest where the rate of interest is applied on the amount obtained after every interval of time.
(A) The balance of Raj's account is given as $500.
And, the money deposited every month is $40.
Suppose, the number of months be m.
Then, the following expression can be written for money in account as,
500 + 40m.
(B) The equation for the given case can be written as,
500 + 40m = 780
⇒ 40m = 280
⇒ m = 7
Hence, the required expression is 500 + 40m number of months required is 7.
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Answer:
-4x² + 10x + 4
Step-by-step explanation:
(-4x² + 3x - 5) - (-7x - 9)
-4x² + (3x - -7x) + (-5 - -9)
-4x² + (3x + 7x) + (-5 + 9)
-4x² + 10x + 4
Final answer:
To subtract – 7x – 9 from - 4x² + 3x – 5, we change the signs of all the terms in the second expression and then combine like terms. The final answer is -4x² + 10x + 4.
Explanation:
To subtract – 7x – 9 from - 4x² + 3x – 5, you simply replace the minus sign before the second expression (– 7x – 9) with a plus sign, and then change the signs of all the terms in that expression. This is analogous to the subtraction of scalars, where for example, 5–2 equals 5+(-2).
Thus, the expression becomes: -4x² + 3x - 5 + 7x + 9. Now, you simply combine like terms. The 3x and 7x can be combined to get 10x, and -5 and 9 can be combined to get 4. The final answer is -4x² + 10x + 4.
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.40
so yes