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kicyunya [14]
3 years ago
9

Can somebody like tell me the answer

Mathematics
2 answers:
Sladkaya [172]3 years ago
8 0
Mason is incorrect .....
nasty-shy [4]3 years ago
3 0

Answer:

Mason is incorrect.

Step-by-step explanation:

Equivalent ratios are formed when the same number is MULTIPLIED to each number in the ratior, not when the same number is added. So for example, a ratio equivalent to 2:3 would be 4:6, because 2*2=4 and 3*2=6. You multiply to create equivalent ratios, not add.

(That would be your explanation)

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Elijah calculated the area of a circle to be 900π units². Which of the following was the radius of the circle?
scZoUnD [109]

Answer: A. 30

Step-by-step explanation:

The formula for the area of a circle is pi*r^2, where r is the radius of the circle.

900pi = pi*r^2

Divide both sides by pi.

900 = r^2

Square root both sides.

r = +/- 30.

Since the radius cannot be negative, the answer is 30 units.

7 0
2 years ago
If the pattern shown continues how many black keys appear on an organ with a total of 240 keys
andre [41]
240 is probably multiplied some other number if theres another number on there to multiply or divide by.

6 0
3 years ago
Expand and simplify (2x−12) ^2
lubasha [3.4K]

Answer:

\boxed{4x^{2}  - 48x + 144}

Step-by-step explanation:

Given expression:

  • (2x - 12)²

To simplify the expression, we will use the formula (a - b)² = a² - 2ab + b².

[Where "a and b" are the first and second term in (a - b)²]

\rightarrowtail (2x - 12)^{2}

In this case, the first term of (2x - 12)² is "2x" and the second term is "12".

\rightarrowtail (2x)^{2} - 2(2x)(12) + (12)^{2} \ \ \ \ \ \ \ \ \ \ \ \ \ \  [\small\text{First term = a = 2x; Second term = b = 12]}

Now, simplify the expression.

\rightarrowtail (2x)^{2} - 2(2x)(12) + (12)^{2}

\rightarrowtail (2x)(2x) - (4x)(12) + (12)(12)

\rightarrowtail \boxed{4x^{2}  - 48x + 144}

4 0
2 years ago
A spinner has three sections. This table shows the results of spinning the arrow on the spinner 80 times.
UNO [17]

The experimental probability of the arrow stopping on Section 2 will be \rm \frac{3}{8}. is the ratio of the favorable event to the total number of events.

<h3>What is probability?</h3>

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1.

No of arrows given in the different section ;

Section 1=18

Section 2=30

Section 3=32

The probability that the arrow stopping on Section 2 is found as;

\rm P = \frac{Favourable \ outcomes }{Total \ outcomes }  \\\\\ P= \frac{30}{18+30+32} \\\\ P=\frac{30}{80}\\\\ P= \frac{3}{8}

Hence, the experimental probability of the arrow stopping on Section 2 will be \rm \frac{3}{8}.

More about the probability link is given below.

brainly.com/question/795909

#SPJ1

7 0
2 years ago
Complete the following statement. Round to the nearest hundredth .
RSB [31]

f(x) = 3/(x + 2) - √x - 3

f(7) = 3/(7 + 2) - √7 - 3

f(7) = 3/9 - √4

f(7) = 0.333 - 2

f(7) = -1.67

7 0
3 years ago
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