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ozzi
3 years ago
7

Select the correct answer

Mathematics
2 answers:
timama [110]3 years ago
5 0

Answer:

answer is B!

Step-by-step explanation:

kifflom [539]3 years ago
4 0

Answer:

b

Step-by-step explanation:

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Calculate the area of each figure.
guapka [62]

Answer:

230cm^{2}

Step-by-step explanation:

17*10=170

12*10*1/2=60

170+60=230

6 0
3 years ago
If angle 3 is 3x and angle 5 is 2x+30, what are the measures of angle 3 and 5?
Crank

Answer:

23

Step-by-step explanation:

5 0
3 years ago
If x^2=10,What is the value of x?
Georgia [21]
First one is the answer
x = +- sqrt (10)
5 0
3 years ago
Read 2 more answers
17cm per minute = meters per hour
Arlecino [84]
Answer:  10.2 meters per hour; or, write as: 10 ⅕ meters per hour.
___________________________________________
Explanation:
_____________________________________
Note: "h" = time in "hour(s)" ; 
         "cm" = length in "centimeter(s)" ;
         "min" = time in "minute(s)";
            "m" = length in "meter(s)"
_____________________________________
Note these EXACT conversions:
_________________________________
100 cm = 1 m ; 
   60 min = 1 h ;
_________________________________
To solve: 

Given: 17 cm / min ; convert to:  ________ m / h 
__________________________________________________
(17 cm / min)* (1 m /100cm) * (60 min / 1 h)  = _______ m / h
__________________________________________________
The "cm" units cancel to "1"; the "min" units cancel to "1" and we are left with units of "m/h" {"meters per hour"}.
___________________________________
We are left with (17 *1 m * 60) / (100 * 1 h) =  [(17 * 60) m] / [100 h] 
                                                                 =  [(17 *60) / 100 ] meters per hour.
________________________________________________________
To simply: (17 * 60) / 100 ;
_________________________
Method 1):  To simplify: (17 * 60) / 100 ;

→Rewrite as: (17*60) / 100 = (17*20*3)/(20*5) ;  
→Cancel out the "20's "; and rewrite as: 

→ (17*60) / 100 = (17*3)/5 = 51/5 
                           = 10.2 meters per hour; or, write as: 10 ⅕ meters per hour.
________________________________________________________
Method 2) To simplify: (17 * 60) / 100 ; Use calculator (or by hand):
___________________________________
→ (17 * 60) / 100 = 1,020 /100 
                             = 10.2 meters per hour; or, write as: 10 ⅕ meters per hour.
__________________________________
Method 3) To simplify: (17 * 60) / 100 ;
_____________________________________
→ (17 * 60) / 100 = ? ;  

→ Divide BOTH the "100" AND the "60" by "10";

        → 60÷10 = 6 ; 100÷10 =10; and rewrite—replace the "60" with a "6"; and replace the "100" with a "10" ;
____________________________
→ (17*60)/100 = (17*6)/10 = 102/10

                         = 10.2 meters per hours; or, write as: 10 ⅕ meters per hour.
____________________________________________________
7 0
3 years ago
You have to make 1000 buttons.the diameter of the button is 9cm but you have to find it’s area.its $15/m squared and you have to
Semmy [17]

Answer:

$95.38

Step-by-step explanation:

step 1

Find the area of one button

The area is equal to

A=\pi r^{2}

we have

r=9/2=4.5\ cm ---> the radius is half the diameter

Convert to meters

r=4.5\ cm=4.5/100=0.045\ m

assume

\pi =3.14

substitute

A=(3.14)(0.045)^{2}\\A=0.0063585\ m^2

step 2

Find the area of 1,00 buttons

Multiply by 1,000

A=0.0063585(1,000)=6.3585\ m^2

step 3

Find the cost

Multiply $15 per square meter by the total area of 1,000 buttons

(15)6.3585=\$95.38

3 0
3 years ago
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