PLZ HELP IM GIVING YOU 100 POINTS<br> solve for x<br> 2 1/4 = 1 2/7 divided by x

Please I need help ASAP<br>pls explain your answer

USPshnik [31]

Answer:

47.62 cm

Step-by-step explanation:

ABCD is a rhombus. Each side measures 15 cm.

m<A = 60°.

Here are some properties of a rhombus:

Opposite angles of a rhombus are congruent.

m<C = m<A = 60°

m<ADC = m<ABC

The sum of the measures of the interior angles of a quadrilateral is 360°.

The diagonals are perpendicular bisectors of each other.

m<A + m<C + m<ADC + m<ABC = 360°

60° + 60° + 2m<ADC = 360°

2m<ADC = 240°

m<ADC = 120°

Each diagonal of a rhombus bisects a pair of congruent, opposite angles.

m<ADB + m<CDB = m<ADC

m<ADB = m<CDB

m<ADB + m<ADB = 120°

m<ADB = 60°

Triangle ABD had two angles, <A and <ADB, that measure 60°. Therefore, the third angle, <ABD also measures 60°. That makes triangle ABD an equilateral triangle.

Draw segment AT.

T is the midpoint of BD. The segment AT is the perpendicular bisector of segment BD. Triangle ATD is a 30-60-90 triangle.

Using the ratio of the lengths of the sides of a 30-60-90 triangle, we can calculate the length of AT which is the radius of circle A.

TD : AT : AD

1 : √3 : 2

AD = 15 cm

TD = AD/2

AT = √3 × TD

AT = (AD√3)/2

AT = 7.5√3 = 12.99

AQ = 12.99

perimeter = QD + PB + m(arc)PTQ + BC + CD

perimeter = (15 - 12.99) + (15 - 12.99) + 60°/360° × 2π(12.99) + 15 + 15

perimeter = 47.62

Answer: perimeter = 47.62 cm

7 0

3 years ago

The price of tiling a room varies directly as the size of the room. Sam is laying tile in his kitchen. If the tiling costs $4,22

stiv31 [10]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

Let the price of the room be p

Let the size of the room be s

To find the size of a kitchen that costs $3,824.00 we must first find the relationship between them

The statement

The price of tiling a room varies directly as the size of the room is written as

where k is the constant of proportionality

when

p = $4,224.00

s = 264 square feet

Substitute the values into the expression to find k

That's

4224 = 264k

Divide both sides by 264

k = 16

So the formula for the variation is

when

p = 3824

$s = \frac{p}{16}$

$s = \frac{3824}{16}$

s = 239

The final answer is

239 square feet

Hope this helps you

6 0

3 years ago

Gas prices went from $2.53 to $2.89 during the year. What is the percent increase?

andrew-mc [135]

Can you tell me by how many dollars has the price risen

5 0

2 years ago

Read 2 more answers

Calculus AB

wariber [46]

Assuming you mean
$\lim_{x \to 4} \frac{\sqrt{x+5}-3}{4-x}$

that means as x approaches 4

if we sub 0 for x we get
0/0
and intermitent form
use l'hopital's rule

so
take the derivitive of the top and bottom seperatly
l'hopitals rule is something like
if $\lim_{x \to n} \frac{f(x)}{g(x)}$ results in 0/0 or -∞/∞ or∞/∞ then keep doing it until f(n)/g(n) gives a form that isn't intermitent

so

take derivitive of top and bottom
$\dfrac{\frac{1}{2\sqrt{x+5}}}{-1}$
now, if we subsitute 4 for x we get
$\dfrac{\frac{1}{2\sqrt{4+5}}}{-1}$ =

$\dfrac{\frac{1}{2\sqrt{9}}}{-1}$ =

$\dfrac{\frac{1}{2(3)}}{-1}$ =

$\dfrac{\frac{1}{6}}{-1}$ =

$\dfrac{1}{-6}=\dfrac{-1}{6}$

8 0

3 years ago

One angle of an isosceles triangle measures 110°. Which other angles could be in that isosceles triangle? Choose all that apply.

BigorU [14]

Answer:

75 an 35 YEE YEE.

Step-by-step explanation:

im pretty sure

8 0

3 years ago

PLZ HELP IM GIVING YOU 100 POINTS solve for x 2 1/4 = 1 2/7 divided by x