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arsen [322]
3 years ago
8

Find the value of c that completes the square for the function f(x)= x2 + 4x + C.

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0

Answer:

=  - 4 \times 2 + 4 \times ( - 4) + c \\   = - 8  - 16 + c \\  = 24 + c \\  \frac{ - c}{ - 1}  =  \frac{24}{ - 1}  \\ c =  - 24

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The square below represents one whole. Express the shaded area as a fraction, a decimal, and a percent of the whole. Fraction: D
Igoryamba

Answer:

Fraction = \frac{19}{50}

Decimal = 0.38

Percent = 38%

Step-by-step explanation:

Number of shaded rectangles = 38

Total number of rectangles = 100

Fraction represented by the shaded area = \frac{\text{Number of blocks shaded}}{\text{Total number of blocks}}

                                                                     = \frac{38}{100}

                                                                     = \frac{19\times 2}{50\times 2}

                                                                     = \frac{19}{50}

Decimal form of the shaded area = \frac{38}{100} =  0.38

Percent of the shaded area = \frac{38}{100} = 38%

7 0
3 years ago
How to subtract 4/5 and 3/10 in simplest form
g100num [7]
First you must find a common denominator. In this case 10 will work. You then multiply the top number by whatever you multiplied the bottom number by. This is shown below:
4/5- 3/10 = 8/10- 3/10 
You can now solve this to get 5/10. This answer can then be reduced to 1/2. 
3 0
3 years ago
Read 2 more answers
Solve these linear systems using elimination <3
Dmitry_Shevchenko [17]

Answer:

1.x=3/4y + 2

Step-by-step explanation:

Add 3y to both sides then after youdidnt that divide both sides by 4 Thereyougo the answer.

i have school myself so i only did one.

3 0
3 years ago
Megan has $45.12 in her purse. She spends $7.89 for lunch and $21.25 for a pair of sunglasses.
tekilochka [14]

Answer:

15.98 dollars

Step-by-step explanation:

its really easy

we need to subtract the total amount that she has spent from the total amount that she had in her purse

the total amount in Megan's purse=$45.12

total amount that Megan spent=$7.89+$21.25 =$29.14

now,

the exact amount that Megan has left = $45.12-$29.14=$15.98

5 0
2 years ago
The expressions are on the picture
Ghella [55]
A no
B yes
C no
D no
E yes
4 0
4 years ago
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