I cant figure this out pleas help

Answers

Answer 1

Answer: can u give me the questions and answers (picture wont show)

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How do you calculate the daily periodic rate?
What is the vertex of the parabola whose equation is y = (x + 1)2 + 3? (-1, -3) (-1, 3) (1, 3)
If a square has an area of 81 square units how long is each side?

Which set of ordered pairs represents a function?{(0, 1), (1, 3), (1, 5), (2, 8)}
{(0, 0), (1, 2), (2, 6), (2, 8)}
{(0, 0), (0, 2), (2, 0), (2, 4)}
{(0, 2), (1, 4), (2, 6), (3, 6)}

Please explain why.

Answers

The very last set
{(0, 2), (1, 4), (2, 6), (3, 6)}.

The reason why is because of the vertical line test. If there are two y-coordinates on a x-coordinate then it is not a function. A function is that each x-coordinate has a y-coordinate with the x-coordinates being different.

Example is above. If you have any questions then leave a comment. Good luck!

Answer:

last one

Step-by-step explanation:

Find all solution of the equation.
y=-x
y=xlnx

Answers

$\left\{\begin{array}{ccc}y=-x\ny=xlnx\end{array}\right;\ \ \ D:x\in\mathbb{R^+}\n\nxlnx=-x\n\nxlnx+x=0\n\nx(lnx+1)=0\iff x=0\notin D\ or\ lnx+1=0\n\nlnx=-1\iff x=e^(-1)\to x=(1)/(e)\in D\n\nAnswer:x=(1)/(e)\ and\ y=-(1)/(e)$

In March, a dealership sold 115 vehicles. In April, the same dealership sold 31.3% more vehicles than they sold in March. How many vehicles were sold in April?

Answers

It would be (115*131.3)/100 = 15099.5/100 = 150.99

Approx. 151 vehicles were sold in April

150.9 cars. so basically 150

NEED HELP WITH MATH QUESTION ITS ABOUT FINDING AREA OF A TRIANGLE !! I WOULD BE REALLY GRATEFUL IS SOMEONE HELPED ME WITH A FEW QUESTIONS AFTER THIS

Answers

Answer:

The area of triangle is 59.2 in².

Step-by-step explanation:

If a, b and c are three sides of a triangle then the area of triangle by heron's formula is

$A=\sqrt{s(s-a)(s-b)(s-c)$ .... (1)

where,

$s=(a+b+c)/(2)$

From the given figure it is clear that the length of sides are 12 in, 18 in and 28.8 in. The value of s is

$s=(12+18+28.8)/(2)=29.4$

Substitute s=29.4, a=12, b=18 and c=28.8 in equation (1).

$A=√(29.4(29.4-12)(29.4-18)(29.4-28.8))$

$A=√(3499.0704)$

$A=59.15294$

$A\approx 59.2$

Therefore the area of triangle is 59.2 in².

Answer:

65.8 in²

Step-by-step explanation:

Given a triangle with 2 sides and the included angle then the area (A) is

A = 0.5 × a × b × sinΘ

where a, b are the 2 sides and Θ the included angle

here a = 18, b = 12 and Θ = 147°, hence

A = 0. 5 × 18 × 12 × sin147°

= 108 × sin147° ≈ 65.8 ( to the nearest tenth )

A rectangle watch of ground is 5 m longer than it is wide its area is 20,000 m²

Answers

Lets call x how wide it is, and write the area equation:
area = width*length
a = (x)(x + 5) = 20000
expand it:
x^2 + 5x = 20000
make a quadratic trinomial:
x^2 + 5x - 20000 = 0
lets apply the general quadratic formula to solve:
x = (-5 +- √(25 + 80000))/2
x = (-5 +- 282.89)/2
we take the positive solution:
x = (-5 + 282.89)/2
x = 138.94
therefore the rectangle width is 138.94 m and 143.94 m long

The table shows ordered pairs of the function y=8-2x, when x=8,the value of y is

Answers

y just happens to be -8

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Which statements accurately describe the function f(x) = 3(16)^3/4? Check all that apply.The initial value is 3. The initial value is 48. The domain is x > 0. The range is y >0. The simplified base is 12. The simplified base is 8.

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