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3 years ago

Please someone help me solve this.

Mathematics

1 answer:

posledela3 years ago

3 0

First, add 78.3 to -116.46. Then after that, divide what is left over by -5.3 and then solve p.

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in Youngstown, the population reached 4420 people in 1993. in 1998 the population was 5600 residents. what was the population in

Julli [10]

5600 - 4420 = 1180....so there is a difference of 1180 in a period of (1998 - 1993) = 5 yrs.

1180/5 = 236 people per yr

so in 1998 the population was 5600.....in 2000 (2 yrs later) the population would be : 5600 + 236(2) = 5600 + 472 = 6072 <==

4 0

4 years ago

Luis Castillo, a commission merchant in Dallas, buys merchandise exclusively for principals. A recent transaction is listed belo

Svetach [21]

Answer:

commission on the purchase = $559

gross cost = $9371

Step-by-step explanation:

Given data

Prime Cost = $8,600

Commission Rate = 6.5%

Local Delivery = 44

storage = 77

air freight = 91

to find out

Luis' commission on the purchase and the gross cost

solution

we find first commission on the purchase that is = commision @ 6.5%

commission on the purchase = 8600 × 0.065 = $559

commission on the purchase = $559

and

gross cost = Prime Cost + Commission + Local Delivery +storage +air freight

gross cost = 8600 + 559 + 44+ 77 + 91

gross cost = $9371

5 0

3 years ago

PLEASE HELP!<br><br> What are the solutions to the equation 2^−x = −2x?

topjm [15]

Plit the second term in 2{x}^{2}-x-12x2 −x−1 into two terms2{x}^{2}+x-2x-1=02x2 +x−2x−1=0
2 Factor out common terms in the first two terms, then in the last two termsx(2x+1)-(2x+1)=0x(2x+1)−(2x+1)=0
3 Factor out the common term 2x+12x+1(2x+1)(x-1)=0(2x+1)(x−1)=0
4 Solve for xxx=-\frac{1}{2},1x=−21 ,1

Decimal Form: -0.5, 1

6 0

3 years ago

It is possible to get 2 solutions when the system of equations is: (check all that apply)

SVETLANKA909090 [29]

Answer:

A system of the equation of a circle and a linear equation

A system of the equation of a parabola and a linear equation

Step-by-step explanation:

Let us verify our answer

A system of the equation of a circle and a linear equation

Let an equation of a circle as $x^2+ y^2 = 1$ ..........(1)

Let a liner equation Y = x ............(2)

substitute (2) in (1)

$x^2 + x^2 = 1\\2x^2 = 1\\$

$x^2 = \frac{1}{\sqrt{2} } \\x = +\frac{1}{\sqrt{2} } , -\frac{1}{\sqrt{2} }$ so Y = $+\frac{1}{\sqrt{2} } , -\frac{1}{\sqrt{2} }$

so the two solution are ( $(\frac{1}{\sqrt{2} } ,\frac{1}{\sqrt{2} }) (-\frac{1}{\sqrt{2} }, -\frac{1}{\sqrt{2} }$ )

A system of the equation of a parabola and a linear equation

Let equation of Parabola be $y^2 = x$

and linear equation y = x

substitute

$x^2 = x\\x^2 - x= 0\\x(x-1) = \\x = 0 , 1$

Y = 0,1

so the two solutions will be (0,0) and (1,1)

3 0

3 years ago

Regression and modeling with functions

Leto [7]

I used scatter plot graph in the insert graph function of excel and added a trend line that shows the equation of the line of best fit and the r.

The line that can be applied in this function is linear with an equation of y = 3800.6x - 5223.6 and the regression is r² = 0.8925. The y intercept represents when the starting point of a line starts. It is a strong correlation since the value of r² that is equal to 0.8925 is close to 1. We can solve the value of the investment after 6 years using the equation above.

y = 3800.6x - 5223.6
y = 3800.6(6) - 5223.6
y = 17,580

5 0

3 years ago