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4 years ago

7

Solve for x and y. point for x point for y point for work

1 answer:

madam [21]4 years ago

5 0

Y + 112 = 180
y = 180 - 112
y = 68

x + y + 58 = 180
x + 68 + 58 = 180
x + 126 = 180
x = 180 -126
x = 54

Answer: x = 54, y = 68

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A toy store orders jigsaw puzzles for $3.05 and sells them for $4.95. What is the percent of markup? Round your answer to the ne

Novay_Z [31]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

the percent of markup <span> 62.3%

</span>$3.05 -> $4.95

<span>Difference = $1.90 </span>
<span>Percentage of increase = 1.90/3.05 = Approximately 0.6229 = 62.3% = D </span>

5 0

3 years ago

What is the vertex of f(x)= -3/4|x|+7? also how do i graph it?

Harrizon [31]

Rewrite in standard form and use this form to find the vertex

(h,k).(0,7)

then just graph the (0,7) the just down cross the line down like a triangle

7 0

4 years ago

If 3 to the power y = x then y = ?

Oksanka [162]

Answer:

$y=\log_3(x)$

Step-by-step explanation:

$3^y=x$

$\ln(3^y)=\ln(x)$

$y\ln(3)=\ln(x)$

$y=\frac{\displaystyle\ln(x)}{\displaystyle\ln(3)}$

but if

$f(x)=\frac{\displaystyle\ln(x)}{\displaystyle\ln(3)}$

then since

$f(3)=\frac{\displaystyle\ln(3)}{\displaystyle\ln(3)}=1$

$f(x)=\log_3(x)$

so

$y=\log_3(x)$

or

$3^y=x$

$\log_3(3^y)=\log_3(x)$

$y\log_3(3)=\log_3(x)$

$\text{but }\,\log_3(3)=1, \text{so,}$

$y=\log_3(x)$

6 0

3 years ago

Help me solve problem one please.

max2010maxim [7]

Answer: His temperature is 99°F

Step-by-step explanation:

Let's state what we know:

Steve's temperature was initially 102°F

Later it dropped 3°F lower

Since his temperature decreased we need to subtract 3 from 102 to see what his temperature is now

102-3=99

4 0

2 years ago

What is the period of the function f(x)=sin(x/3) ?

vitfil [10]

<h3>Answer: 6pi radians</h3>

(this is equivalent to 1080 degrees)

======================================

Explanation:

f(x) = sin(x/3)

is the same as

f(x) = 1*sin( (1/3)(x-0) )+0

and that is in the form

f(x) = A*sin( B(x-C) )+D

The letters A,B,C,D are explained below

A = helps find the amplitude

B = 2pi/T, where T is the period

C = determines phase shift (aka left/right shifting)

D = determines vertical shift = midline

All we care about is the value of B as that is the only thing that is connected to the period T

--------

Compare f(x) = 1*sin( (1/3)(x-0) )+0 with f(x) = A*sin( B(x-C) )+D and we see that B = 1/3, so,

B = 2pi/T

1/3 = 2pi/T

1*T = 3*2pi ... cross multiply

T = 6pi

The period is 6pi radians. This is equivalent to 1080 degrees. To convert from radians to degrees, you multiply by (180/pi).

6 0

3 years ago