3 years ago

Answer correctly for brainliest and also a thanks ! Don't answer if you don't know it please !

1 answer:

5 0

The answer is B for increase of one year the events increase by 0.5

You can do this by using the eqn

y=0.5x-1.3
y=0.5(15)-1.3
y = 7.5-1.3
y = 6.2

y=0.5(16)-1.3
y=8-1.3
y=6.7

6.7-6.2 = 0.5

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David wants to build a rectangular fencing with the 5 identical parts for his animals. He has 780 feet of fencing to make it. Wh

Vladimir79 [104]

Answer:

65 ft by 39 ft

Step-by-step explanation:

Let x ft be the length of each part and y ft be the width of each part. The total perimeter of all 5 parts is

$6x+10y=780$

The length of the large rectangle is 5y ft and the width of the large rectangle is x, so the total area is

$A=x\cdot 5y$

From the first equation,

$y=78-0.6x$

Substitute it into the area expression:

$A(x)=x\cdot 5(78-0.6x)=390x-3x^2$

Find the derivative:

$A'(x)=390-3\cdot 2x=390-6x$

Equate it to 0:

$390-6x=0\\ \\6x=390\\ \\x=65$

Then

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5 0

3 years ago

Solve the equation.Check your solution<br><br> 4/5t=6/7

umka21 [38]

$\frac{4}{5}t = \frac{6}{7} \\\frac{5}{4} * \frac{4}{5}t = \frac{6}{7} * \frac{5}{4} \\t = 1\frac{1}{14}$

6 0

3 years ago

What is the product? (x^4)(3x^3-2)(4x^2)(4x^2+5x)

BabaBlast [244]

Answer:

Definitely A

Step-by-step explanation:

When multiplying you add exponents.

$x^{4} (3x^{2} -2) = 3x^{7} -2x^{4} \\FOIL (3x^{7} -2x^{4})(4x^{2} +5x) = 12x^{9} +15x^{8} -8x^{6} -10x^{5}$

7 0

3 years ago

Riley is saving up to buy a new television. She needs a total of $1,054.04. Riley has saved $200.66 already and earns $77.58 per

Gnesinka [82]

Answer:

Step-by-step explanation:

1,054.04-200.66=853.38

853.38/77.58=11

5 0

3 years ago

Best answer will get brainliest

Naddik [55]

Step-by-step explanation:

uhm sorry its to blurd!! i will answer some other question

4 0

3 years ago