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3 years ago

Hello can somedy help me please thank you in advance

Mathematics

1 answer:

alina1380 [7]3 years ago

4 0

Answer:

Area of the circle=πr²

$= 3.142 \times {4}^{2} \\ = 50.272cm \\ = 50.3cm$

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Name Date 34bral Kuta Software - Infinite Algebra 2 Solving Absolute Value Equations Solve each equation. 1) 13x1=9 2) 1-3r1=9 R

vichka [17]

$-5|3+4k|=-115$

start by dividing both sided by -5

$\frac{-5}{-5}|3+4k|=-\frac{115}{-5}$ $|3+4k|=23$

when we have an absolute we obtain two equations, one for the positive value and one for the negative value

$\begin{gathered} 3+4k=23 \\ -(3+4k)=23 \end{gathered}$

solve each of them

$\begin{gathered} 3+4k=23 \\ 4k=23-3 \\ 4k=20 \\ k=\frac{20}{4}=5 \end{gathered}$

for the second equation

$\begin{gathered} -(3+4k)=23 \\ -3-4k=23 \\ -4k=23+3 \\ -4k=26 \\ k=-\frac{26}{4}=-6.5 \end{gathered}$

the solutions for k are -6.5 and 5

4 0

1 year ago

The numbers 8, 1, −7, −12 are listed from greatest to least. <br> True or False

AlexFokin [52]

Answer:True

Step-by-step explanation:

8 0

4 years ago

Pls help will give brainiest

MAXImum [283]

Answer:

113

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Someone please help with this question

vlada-n [284]

Answer:

Angle ADC because A central angle is an angle with endpoints and located on a circle's circumference and vertex located at the circle's center

7 0

2 years ago

A uniform border on a framed photograph has the same area as the photograph. What are the outside dimensions of the border if th

Black_prince [1.1K]

Given dimension of photograph = 25cm * 20cm

So area of photograph = 500cm²

Now, let the width of frame border be = x

So, dimensions of photograph + frame= (25 + 2x)*(20 + 2x)

As given, the area of frame is same as photograph , so

Area of picture + frame = 1000cm ²

Hence, area equals

$4x^{2}+90x+500=1000$

$4x^{2}+90x-500=0$

$2x^{2}+45x-250=0$

Solving this quadratic equation,

For the quadratic equation of the form $ax^{2}+bx+c=0$ , solution is:

x1,2 = $\frac{-b+\sqrt{b^{2}-4ac}}{2a}$

Now putting a=2, b=45, c= -250 and solving he above equation, we get two values of x.

x = -27.11 (discard it as it is negative) and

x = 4.61 cm

Hence the dimensions of the frame are:

20+2x = 20+2(4.61) = 29.22 cm

25+2x = 25+2(4.61) = 34.22 cm

7 0

3 years ago