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4 years ago

10

if the points (2,-3) , (8,3) and (4,7) are the vertices of triangle ,find the coordinate of the middle point of the sides of the

triangle .

1 answer:

jeyben [28]4 years ago

8 0

This is the answer, ask if you don’t understand anything

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which polynomial represents the sum below? (3x^2+3) + (3x^2+x+4) A) 6x^2+x+12 B) 9x^2+x+7 C) 6x^@+x+7 d)9x^2+x+12

mezya [45]

Answer:

Step-by-step explanation:

3x^2 + 3 + 3x^2 + x + 4....combine like terms

6x^2 + x + 7 <===

4 0

3 years ago

Rodney can wash 24 windows in an hour how many windows can he wash in 1/8 of an hour

Viktor [21]

Answer:

3

Step-by-step explanation:

24x (1/8) = 3

hope this helps

3 0

3 years ago

A set of stacking cubes measures 2cm by 2cm by 2cm. Kathy stacks eight cubes, and marco stacks five cubes. How much greater is t

Bas_tet [7]

Kathy’s stack is 24cm3 more then Marcos

5 0

3 years ago

What is the value of in e^4<br>a) 0<br>b) 1<br>c)2<br>d)4

Rina8888 [55]

Answer:

0

Step-by-step explanation:

5 0

3 years ago

Write an exponential model given the points ( 7, 12 ) and ( 8, 25 ). Round to the nearest hundredth.

inna [77]

Answer:

The exponential model is $y = 0.07\cdot e^{0.73\cdot x}$ .

Step-by-step explanation:

The exponential model can be modelled by the following mathematical expression:

$y = A\cdot e^{B\cdot x}$ (1)

Where:

$x$ - Independent variable.

$y$ - Dependent variable.

$A, B$ - Coefficients.

If we know that $(x_{1}, y_{1}) = (7,12)$ and $(x_{2}, y_{2}) = (8,25)$ , then we get the following system of equations:

$A\cdot e^{7\cdot B} = 12$ (2)

$A\cdot e^{8\cdot B} = 25$ (3)

If we divide (3) by (2), we calculate the value of $B$ :

$e^{B}=\frac{25}{12}$

$B = \ln \frac{25}{12}$

$B \approx 0.734$

And by (2), we determine the value of $A$ :

$A = 12\cdot e^{-7\cdot B}$

$A = 0.0704$

The exponential model is $y = 0.07\cdot e^{0.73\cdot x}$ .

4 0

3 years ago