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dybincka [34]
3 years ago
8

Find the difference of -12.7 - (-5.6) 17.13 -7.13 -7.1 -8.4

Mathematics
1 answer:
SOVA2 [1]3 years ago
7 0

Answer:

-7.1

Step-by-step explanation:

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F(105)=105/7 use the following functions to find f(105)
sashaice [31]

Answer:

F(105)  = 15

Step-by-step explanation:

105 ÷ 7 = 15

Hope this helps!

4 0
2 years ago
What is the mean absolute deviation of this data set, rounded to the nearest tenth?
vova2212 [387]

Answer:

The answer is C. (1.1)

Step-by-step explanation:

5 0
3 years ago
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PLEASE HELP
olasank [31]

Answer:seventh year

Step-by-step explanation:

4 0
3 years ago
Learning Task 4. Solve the problem by applying the sum and product of roots
Delvig [45]

Answer:

<em>Thus, the dimensions of the metal plate are 10 dm and 8 dm.</em>

Step-by-step explanation:

For a quadratic equation:

x^2+bx+c=0

The sum of the roots is -b and the product is c. Note the leading coefficient is 1.

We know the perimeter of the rectangular metal plate is 36 dm and its area is 80 dm^2. Being L and W its dimensions, then:

P=2(L+W)=36

A=L.W=80

Note both formulas are closely related to the roots of the quadratic equation, we only need to adjust the data for the perimeter to be exactly the sum of L+W and not double of it.

Thus we use the semi perimeter instead as P/2=L+W=18

The quadratic equation is, then:

x^2-18x+80=0

Factoring by finding two numbers that add up to 18 and have a product of 80:

(x-10)(x-8)=0

The solutions to the equation are:

x=10, x=8

Thus, the dimensions of the metal plate are 10 dm and 8 dm.

6 0
3 years ago
Maria throws an apple vertically upward from a height of 1.3m unit an initial velocity of velocity of 12.4m/s . Will the apple r
PSYCHO15rus [73]

Answer:

Step-by-step explanation:

v^2-u^2=2gh

0^2-12.4^2=2*(-9.8)h

-3.1×12.4=-4.9 h

h=\frac{-3.1*12.4}{-4.9} \approx7.84 m

yes it can reach

7 0
2 years ago
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