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mario62 [17]
3 years ago
6

Find the roots of the following function: y = x2 − 7x − 30

Mathematics
1 answer:
DIA [1.3K]3 years ago
6 0

Answer:

x = 3, −10

Step-by-step explanation:

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x.

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Help me with this yes im lazy 2 pages thats it.
valentinak56 [21]

Answer:

2.)\frac{1}{4}/3=\frac{1}{4}*\frac{1}{3}=\frac{1}{12} s yes she is correct

3.)\frac{1}{5}*\frac{1}{7}

4.)C\frac{1}{5}/2= \frac{2}{5},D\frac{1}{12}/5=\frac{1}{60},E

6.)\frac{1}{8}/3=\frac{1}{24}

Step-by-step explanation:

im not very good at word problems so i didnt do the secnd page sorry

5 0
3 years ago
Which expression is equivalent to (2^3)^-6?
Kay [80]

Answer:

2^-18

Step-by-step explanation:

3 0
2 years ago
My sisters phone is dead and she needs to know his question so I'll just tell you it!...
Vanyuwa [196]
 I used a calculator and it said the answer is 430858661.

The only way I know how to do this sort of long sum is with a calculator....
All you need to do is input 43789 * 9 + 138 * 12 - 1345 + 124556 x 3456 - 1287 and you will get the answer. Converted the words into the numerical symbols like times to *

If you want it to be more readable add commas so it's 430,858,661. You do it every 3 numbers. 

You'll want to do it the right order of operations since not all calculators do this automatically and it's a good habit >_>, using an acronym like BIDMAS (using the brit acronym lol) is a good way to remember this (<span>Brackets, Indices, Division, Multiplication, Addition, Subtraction)

So you'll need to do the multiplication first and then the addition and then the subtraction so this is the correct order. You want to use the brackets so it does it in the right order. 
(43 789 * 9) + (138 * 12) - 1345 + (124 556 x 3456) - 1287</span>
5 0
3 years ago
PLEASE HELP ME.
pshichka [43]

Answer:

B, B, A

Step-by-step explanation:

I don't know number 4 answer. hope I helped

7 0
3 years ago
Plzzzz I need help. Algebra!!!!!! The length of a rectangle is 2 more than 3 times its width. Find the dimensions of the rectang
defon

Answer:

W = 5 in.

L = 17 in

Step-by-step explanation

L = Length W = Width

L = 2 + 3w

44 = 2L + 2W

44 = 2(2+3W) + 2W

44 = 4 + 6W + 2W

40 = 8W

5 = W

6 0
3 years ago
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