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Andreyy89
3 years ago
15

The quadrilaterals JKLM and PQRS are similar.

Mathematics
2 answers:
poizon [28]3 years ago
6 0

Answer:

I believe the answer is 45.

Step-by-step explanation:

This is just my opinion. However I could be wrong.

drek231 [11]3 years ago
5 0

Answer:

5.4

Step-by-step explanation:

Scale factor = 2.7/3 = 0.9

x = 6*0.9 = 5.4

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2) Suppose that circles A and B have a central angle measuring 40°. Additionally, circle A has a radius of 5 2 ft and the radius
sleet_krkn [62]

Let 

rA--------> radius of the circle A

rB-------> radius of the circle B

SA------> the area of the sector for circle A

SB------> the area of the sector for circle B 

 

we have that

rA=5/2 ft

rB=9/2 ft

rA/rB=5/9-----------> rB/rA=9/5

SA=(25/36)π ft²

 

we know that

 

if Both circle A and circle B have a central angle , the square of the ratio of the radius of circle A to the radius of circle B is equals to the ratio of the area of the sector for circle A to the area of the sector for circle B

 

(rA/rB) ^2=SA/SB-----> SB=SA*(rB/rA) ^2----> SB=(9/5) ^2*(25/36)π--->

<span>SB----------- > (81/25)*(25/36)------ > 81/36------ >  9/4π ft²</span>

 

the answer is

<span>the measure of the sector for circle B is (9/4)π ft²</span>


3 0
3 years ago
How many ounces of a 35% alcohol solution must be mixed with 10ounces of 40% alcohol solution to make a 37% alcohol solution?
spayn [35]
First off, let's change the format of the percentage to decimal.. so 35% is just 35/100 or 0.35 and 40% is 40/100 or 0.4 and so on.

\bf \begin{array}{lccclll}&#10;&amount&concentration&&#10;\begin{array}{llll}&#10;concentrated\\&#10;amount&#10;\end{array}\\&#10;&-----&-------&-------\\&#10;\textit{35\% sol'n}&x&0.35&0.35x\\&#10;\textit{40\% sol'n}&10&0.40&4.00\\&#10;-----&-----&-------&-------\\&#10;mixture&y&0.37&0.37y&#10;\end{array}

now, whatever "x" amount is, we know that x + 10 must add up to "y". x + 10 =  y, because both quantities added will give the mixture amount.

and whatever 0.35x + 4 = 0.37y, because both concentrated amounts must give the 37% of the mixture.

\bf \begin{cases}&#10;x+10=\boxed{y}\\&#10;0.35x+4=0.37y\\&#10;----------\\&#10;0.35x+4=0.37\left( \boxed{x+10} \right)&#10;\end{cases}

solve for "x", to see how much of the 35% solution will be needed.

what about "y"? well, x + 10 = y.
5 0
3 years ago
Suppose that you own a store that sells a particular stove for $1,000. You purchase the stoves from the distributor for $800 eac
lubasha [3.4K]

Answer

The answer and procedures of the exercise are attached in the following archives.

Explanation  

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4 0
3 years ago
Explain how Main Sequence Stars
iogann1982 [59]
A giant star is a star with substantially larger radius and luminosity than a main-sequence (or dwarf) star of the same surface temperature. They lie above the main sequence (luminosity class V in the Yerkes spectral classification) on the Hertzsprung–Russell diagram and correspond to luminosity classes II and III.
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3 years ago
Jonathan purchased 4 shirts, 2 jackets, and 3 pants. How many different outfits using a
vagabundo [1.1K]

Answer:

24 way im pretty sure

Step-by-step explanation:

4 0
3 years ago
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