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3 years ago

How to solve -7(x-1)^2-2 vertex form to standard form

Mathematics

1 answer:

ahrayia [7]3 years ago

4 0

Expand it

$-7(x-1)^2-2$
$-7(x^2-2x+1)-2$
$-7x^2+14x-7-2$
$-7x^2+14x-9$ is standard form

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Janice is 7 years older than Tam. Complete the table, and then graph this situation.

qwelly [4]

Answer:

The table in the exercise can be completed with the next results:

x y
2 9
4 11
6 13
8 15

Step-by-step explanation:

As in the exercise Janice is 7 years older than Tam, to obtain the result in the table, you must add 7 to each age in the column x, with this we can make the next formula:

y = x + 7

Remember that x is Tam's age, and y is Janice's age, so, you must replace the x variable in each case to obtain the result to y:

When x is 2:

y = 2 + 7
y = 9

When x is 4:

y = 4 + 7
y = 11

When x is 6:

y = 6 + 7
y = 13

When x is 8:

y = 8 + 7
y = 15

At last, to obtain the graph you can use the formula made: y = x + 7, and you'll obtain a graph like the attached picture, where each time x obtain a unit, the y variable obtain a unit too maintaining the diference of 7.

8 0

2 years ago

Rewrite the expressions below by completing the square 2 + 4+ 1

Lady bird [3.3K]

STEP BY STEP EXPLANATION
(Mark brainliest pls)

Square root is 2 square + 4 square + 1 because 1 does not enable a square perhaps for negatives to be imputed, and we know 2 square will be 1 hence,

1 x 1 = 1 squared
2 x 2 = 4 squared
Perhaps for 1, you will have to use a formula equation and add tang maybe. Etc I don’t know if tang but u will also have to convert 1 to a decimal to find the square root of 1, 1 is an odd number so it will end up with remainder decimals or just do 1x1, etc.

Hence u

(2 square + 4 square) + 1square?

It depends on addition or order of operations subtraction addition or you will might use multiply
if the subject is about multiply or Division so try and do it because i don’t know if I’m right

..

REMEMBER

PEMDAS

Please Excuse My Dear Aunt Sally

Parentheses
Equations
Multiplication
Division
Addition
Subtraction

ORDER OF OPERATIONS.

try and solve it hope this helps!
Have a nice day

8 0

2 years ago

Find the length of the third side . If necessary, round nearest tenth 24. 18

Ratling [72]

Answer:30 on delta math!

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

(x + 13y) + 8y= :\ This is so confusing

anygoal [31]

Answer:

x+21 y

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

A man is planning to take his vacation in three weeks. He determines that there is a 15% chance of rain on any given day in that

mixas84 [53]

Answer: 15%

Explanation: if it has 15% chance of rain on any given day so that’s 15% chance on every day that week and I’d think about rescheduling that vacation for another week

4 0

3 years ago