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2 years ago

Solve for x with step by step explanation

Mathematics

1 answer:

HACTEHA [7]2 years ago

6 0

0.85x-100<80

collect like terms

0.85x<80+100

0.85x<180

divide by 0.85

x<211.8

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Please help (just tell me what i have to put in the blanks, i’ll give credit)

Misha Larkins [42]

Answer:

a. earned: $292.50

b. total: $2,092.50

Step-by-step explanation:

A = 1800 [1 + (0.065 * 2.5)] = 2092.5

A = $2,092.50

To find the amount is earned, subtract the total with how much to started with

2,092 - 1,800 = 292.50

5 0

2 years ago

Derive the equation of the parabola with a focus at (_5, 5) and a directrix of y = -1.

mars1129 [50]

Answer: Option D is correct.

Step-by-step explanation:

Since we have given that

focus = (-5,5)

and a directrix y= -1

Since, equation of parabola in this case will be

$(x-h)^2=4.a(y-k)$

Now, here

$y=k-a=-1\\\\\text { focus =(h,k+a)}\\\\\text{So,} k+a=5\\\\\text{ by solving these two equation , we get }\\\\a=3\text{ and } k=2$

So equation will be

$(x+5)^2=4\times 3(y-2)\\\\(x+5)^2=12(y-3)\\\\y=\frac{1}{12}(x+5)^2+2$

So, option D is correct .

4 0

2 years ago

Read 2 more answers

which graph represnts a line with a slope ot -2/3 and a y-intercept equal to that of the line y=2/3x-2?

tia_tia [17]

The graph will be as shown in attached figure

4 0

2 years ago

PLEASE NO LINKS I LOST SO MANY POINTS

Ann [662]

Answer:

We will split the trapezoid into right angle triangle and rectangle

Traingle with base 3cm and height 10 - 6 = 4cm

Area of traingle

= $\frac{1}{2}*base *height = \frac{1}{2} * 3 * 4 = 6cm^{2}$

Area of rectangle with sides 6cm and 3cm

= $6 * 3 = 18cm^{2}$

Therefore, area of the trapezoid

= $6+18 = 24cm^{2}$

Area of the semi circle with radius 3/2 = 1.5cm

= $\frac{1}{2}\pi r^{2} = \frac{1*\pi *1.5*1.5}{2} = 1.125\pi cm^{2}$

$Total area = 24 + 1.125\pi =27.53cm^{2}$

8 0

2 years ago

Please help how do I do this ??

AleksAgata [21]

For 10 here is the answer and for 9 i’ll reply to my comment

3 0

2 years ago