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Mnenie [13.5K]
3 years ago
10

Solve for a, 1/3 + a = 5/4

Mathematics
2 answers:
kirza4 [7]3 years ago
8 0

Answer:

\frac{1}{3}  + a =  \frac{5}{4}

a =  \frac{5}{4}  -  \frac{1}{3}

a =  \frac{15 - 4}{12}

a =  \frac{11}{12}

Luden [163]3 years ago
4 0

Answer:

a = \frac{11}{12}

Step-by-step explanation:

a = \frac{5}{4} - \frac{1}{3}

a = \frac{11}{12}

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F(x) = -4x2 + 4x – 4<br> Find f(3)
ValentinkaMS [17]

F(3) occurs when x =3. So lets plug 3 into our equation.

f(3) = -4(3)^2 + 4(3)-4\\f(3) = -4(9) + 12- 4\\f(3) = -36 + 12- 4\\f(3)= -28

F(3) = -28

I hope this helps! :)

5 0
3 years ago
What is the area of a circle with a radius of 42 inches?<br> in²<br> (Use 3.14 for Pi.)
TEA [102]

Answer:

Area of circle = π r ^ 2

= 3.14 × ( 42) ^ 2

= 5538.96 in^2

If you need any other help , please let me know ! [ you'll have to pay btw]

3 0
2 years ago
Find the variance of the set of data to the nearest tenth: 5, 8, 2, 9, 4
Orlov [11]

Answer:

Therefore the variance on the data set is 8.3

Step-by-step explanation:

In order to find the variance of the set of data we first need to calculate the mean of the set, which is given by:

mean = sum of each element / number of elements

mean = (5 + 8 + 2 + 9 + 4)/5 = 5.6

We can now find the variance by applying the following formula:

s^{2} = \frac{\sum_{(i=1)}^n(x_i - mean)^2}{n -1}

So applying the data from the problem we have:

s² = [(5 - 5.6)² + (8 - 5.6)² + (2 - 5.6)² + (9 - 5.6)² + (4 - 5.6)²]/(5 - 1)

s² = [(-0.6)² + (2.4)² + (-3.6)² + (3.4)² + (-1.6)²]/4

s² = [0.36 + 5.76 + 12.96 + 11.56 + 2.56]/4 = 8.3

Therefore the variance on the data set is 8.3

7 0
3 years ago
Which are perfect square trinomials? Select two options.
Paul [167]

Answer:

C and D

Step-by-step explanation:

just took the quiz

3 0
3 years ago
Read 2 more answers
ANSWER ASAP PLEASE!!! TY:)​
ANEK [815]

Answer:

Volume of triangular prism is given by formula

Volume of triangular prism = (Area of the base) x 12 (height of the prism)

now plug the given values

216= (area of the base) x 12

216/12 = area of the base

18= area of the base

so, the answer is 18 square cm

7 0
3 years ago
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