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qaws [65]
3 years ago
13

Rectangle A measures 12 cm by 3 cm. Rectangle B is a scaled copy of Rectangle A. Select all of the measurements pairs that could

be the dimensions of Rectangle B.
A. 6 cm by 1.5 cm
B. 10 cm by 2 cm.
C. 13 cm by 4 cm.
D 18 cm by 4.5 cm
E. 80 cm by 20 cm.
Can you help me get the rights one for my hw
Mathematics
1 answer:
ankoles [38]3 years ago
8 0

Answer:

A,D,E

Step-by-step explanation:

scaled copy means the ratio of the two lengths would be same proportional constant.

The proportionality constant for Rectangle A is:

12/3 = 4

So any scaled version will have this proportionality constant same (4).

let's check:

A) 6/1.5 = 4 (OK)

B) 10/2 = 5 (NOT OK)

C) 13/4 = 3.25 (NOT OK)

D) 18/4.5 = 4 (OK)

E) 80/20 = 4 (OK)

So, correct options are A, D, and E

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I have pic here and I need help on question 12 plz help meh
sesenic [268]
This was what I got

4 0
3 years ago
Circle the letter of the
laiz [17]

Step-by-step explanation:

the length of the third side could be 6

As in order to form a triangle The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

so Here

8 + 3 > 6

11 > 6 ( True) ✔

8+ 6 > 3

14 > 3 ( True) ✔

6 + 3 > 8

9 > 8 ( True) ✔

Hope it will help you :)

5 0
3 years ago
The day after the school election it was reported that Danny won the election for class president. For every three votes his opp
oee [108]

Answer:

832 votes were cast

Step-by-step explanation:

 

Danny received  =          5 of every 8 votes

Opponent received  =     3 of every 8 votes

 

Let V stand for the total number of votes cast.

 

The opponent's 3/8 of the votes was 312  so  (3/8) times V  = 312

 

(3/8)(V)  =  312

 

V  =  (312)/(3/8)              ( i.e., 312 divided by 3/8 )

 

To divide by a fraction, you invert the divisor and multiply

 

V  = (312) x (8/3)  =  2496/8  =  832 total votes  

7 0
3 years ago
Read 2 more answers
How do you solve this
Fed [463]

Answer:

x is equal to 55 degrees.

Step-by-step explanation:

In order to find this, we must first realize that the angle next to 160 is equal to 20 degrees. This is because they come together to make a straight line, which is equal to 180 degrees.

Now knowing this, we can find the two congruent angles at the top. Since they form one angle of a large triangle along with the right angle and 20 degrees, we know they combine to be worth 70 degrees. Since they are even, we know each is 35 degrees.

For the final step, we know that the 35 degree angle and 90 degree angle form a triangle with x. Knowing these all add up to 180, we can solve for x.

35 + 90 + x = 180

125 + x = 180

x = 55

6 0
4 years ago
HELP IM BEING TIMED!!
grigory [225]

Answer:

Value of x is 8

Step-by-step explanation:

Given:

\sqrt{\frac{896z^{15}}{225z^6} }=\frac{xz^4}{15}  \sqrt{14z}\\\\Computation: \\\\From\ squaring\ both\ side\\\\ {\frac{896z^{15}}{225z^6} }=\frac{x^2z^8}{225} ({14z})\\\\896z^9=14x^2z^9\\\\896=14x^2\\\\64=x^2\\\\x = 8

So, Value of x is 8

7 0
3 years ago
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