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arlik [135]
3 years ago
14

What is the value of the expression 4 + 8.6?

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
8 0

Answer:

simple

Step-by-step explanation:

it's

4+8.6

12.6

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Besties this is 100 points & i'll give brainliest istg i need to know this
diamong [38]

Answer:

\displaystyle   b  =   - 14

\displaystyle    c =   - 54

Step-by-step explanation:

to figure out b we can consider the following formula:

\displaystyle  \frac{ - b}{2a}  = h

the form of vertex coordinate given by

\displaystyle (h,k)

so according to the question

\displaystyle (h,k) = ( - 7, - 5)

by order pair we obtain:

\displaystyle h  =  - 7, k = - 5

now substitute the value of h and a to the formula:

\displaystyle  \frac{ - b}{2(- 1)}  =  - 7

simplify multiplication:

\displaystyle  \frac{ - b}{ - 2}  =  - 7

cross multiplication:

\displaystyle   - b  =  14

divide both sides by -1:

\displaystyle   b  =   - 14

now we need to figure out C to do so substitute -7 for x and -5 for y which yields:

\displaystyle    -  {7}^{2}    - 14( - 7)  + c =  - 5

simplify square:

\displaystyle    -49    - 14( - 7)  + c =  - 5

simplify multiplication:

\displaystyle    -49     + 98+ c =  - 5

simplify addition:

\displaystyle    49+ c =  - 5

cancel 49 from both sides:

\displaystyle    c =   - 54

hence,

  • b=-14
  • C=-54
7 0
3 years ago
Read 2 more answers
Round 8 5/6 to the nearest whole number
kiruha [24]

Answer:

9

Step-by-step explanation:

8 5/6

5/6 is close to 1 so it will round up

8+1 = 9

8 5/6 rounds to 9

5 0
3 years ago
Read 2 more answers
The average (arithmetic mean) of 0, a, and b is 2a. What is the value of b in terms of a?
kramer
0+a+b
a=2
b=10
0+2+10=12/3=4
4=2a
5a is the answer.


3 0
3 years ago
What is the probability of rolling a 7?
marta [7]
The answer is 0% chance
8 0
3 years ago
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A tank that measures 40 feet by 36 feet by 18 feet is filled with water to 5/6 of its height. 1/3 of the water is poured out of
rodikova [14]

so assuming the tank is just a big tall rectangular box-like tank.


well, the volume of a rectangular prism is simply the product of its length, height and width. So the volume for this one will be 40 * 36 * 18, or 25920 ft³.


if we fill that up to only 5/6, not the whole tank, how much is 5/6 of 25920? well, is really just their product, namely 21600 ft³.


and then we dump 1/3 of that 21600, how much is that anyway? well 1/3 of 21600 is really just their product, so 7200 ft³.


so we had 21600 ft³ of water, and dumped 7200 ft³, we're left only with 21600 - 7200, or 14400 ft³.

4 0
4 years ago
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