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trasher [3.6K]
3 years ago
7

Can someone help me please?

Mathematics
1 answer:
sergiy2304 [10]3 years ago
8 0

Answer:

6.5

Step-by-step explanation:

43.50-24=19.5

19.5/3=6.5

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If x+3 is a factor of x^3-x^2-10x+A. What is the value of A?
Leno4ka [110]

Answer:

A = 6.

Step-by-step explanation:

Let a denote a constant (a number, rather than a variable like x.)

Let f(x) denote an expression about x (for example,

By the factor theorem, if (x - a) is a factor of f(x), then f(a) = 0. In other words, if all mentions of x in the expression f(x)\! are replaced with a, then the expression should evaluate to zero.

(x + 3) is equivalent to (x - (-3)). That is: a = -3.

Replace all mentions of x in x^3 - x^2 - 10\, x + A by (-3) to get:

(-3)^3 - (-3)^2 - 10\times (-3) + A.

That should evaluate to zero. Therefore: -27 - 9 + 30 + A = 0. Solve for A to get A = 6.

7 0
3 years ago
A group of four friends went out for dinner. Their bill came to $50.95. They also need to pay 8% sales tax, and want to tip thei
bija089 [108]

Answer:

Enter cost and tip percent to get a tip amount and total dinner amount. Also split the total amount; divide among any number of people. ... Money, Pay, Taxes. > Tip ... Enter your meal or dinner cost along with the tip percentage. ... To calculate a gratuity or tip on any calculator it is a simple multiplication. ... All rights reserved

Step-by-step explanation:

After eating at your favorite restaurant, you know that the bill before tax is $52.60 and that the sales tax rate is 8%. You decide to leave a 20% tip for the waiter based on the pre-tax amount. How much ... To figure out the tip, you need to find 20% of $52.60. 0.2 \times 52.6

3 0
3 years ago
Can someone help me out
madam [21]

the first part isn't 90, it's 180.

the whole circle is 360, half of 360 is 180


an acute angle is any angle less than 90 degrees.

3 0
3 years ago
Look at this graph:
Anton [14]

Answer:

3/2

Step-by-step explanation:

slope=rise/run=30/20=3/2

5 0
3 years ago
Help me ASAP plz!!!!
elena55 [62]
(2, -1), (6,- 4), and (6, -1). Hope this helps man!
6 0
3 years ago
Read 2 more answers
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