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vodka [1.7K]
3 years ago
9

use a graphing calculator to approximate the vertex of the graph of the parabola defined by the following equation. y=x^2+x+6

Mathematics
1 answer:
stepladder [879]3 years ago
6 0

Answer:

(-1/2, 23/4)

Step-by-step explanation:

Vertex of graph: -b/2a

b=1

a=1

Therefore, -1/2 is your x-value

Solve for y: y=1/4-1/2+6

y=5 3/4 or 23/4

Therefore your vertex is: (-1/2, 23/4)

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Maybe the answer must be 90°

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Name this angle <br>X Х<br>4<br>Y<br>N ​
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Step-by-step explanation:

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4 0
3 years ago
What is 1/4 of 20? what is an equivalent fraction to 1/2?
Vinvika [58]
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3 0
3 years ago
Kaylee invested $910 in an account paying an interest rate of 2.6% compounded
Nikitich [7]

Answer:

$1,179

Step-by-step explanation:

Lets use the compound interest formula provided to solve this:

A=P(1+\frac{r}{n} )^{nt}

<em>P = initial balance</em>

<em>r = interest rate (decimal)</em>

<em>n = number of times compounded annually</em>

<em>t = time</em>

<em />

First, lets change 2.6% into a decimal:

2.6% -> \frac{2.6}{100} -> 0.026

Since the interest is compounded quarterly, we will use 4 for n. Lets plug in the values now:

A=910(1+\frac{0.026}{4})^{4(10)}

A=1,179.21

The account balance after 10 years will be $1,179

8 0
3 years ago
There is 6 7/8 cups now i take 2 5/8 away how many is left ?
REY [17]

left means subtracting

6 7/8 - 2 5/8

Whole numbers subtract each other

Numerators subtract each other

The denominators stay the same.

6-2= 4

7-5=2

4 2/8

Reduce 2/8. Divide by 2. 2/2= 1, 8/2= 4

4 2/8=4 1/4

Answer: 4 2/8 = 4 1/4 cups left

3 0
3 years ago
Read 2 more answers
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