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netineya [11]
3 years ago
10

Evaluate ×-7 when ×=23​

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
5 0

Answer:

16

Step-by-step explanation:

23-7=16

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A square with an area A2 of is enlarged to a square with an area of 25A2. How was the side of the smaller square changed?
makvit [3.9K]
Given:
a square with an area of a² is enlarged to a square with an area of 25a².

The side length of the smaller square was changed when The side length was multiplied by 5.

Area = (1a)² = a²
Area = 1a * 5 = 5a ⇒ (5a)² = 25a²
3 0
4 years ago
Read 2 more answers
Are there concepts/processes to strictly follow in writing radicals as expressions with rational exponents?
Eva8 [605]

Answer:

The concept or process is x^{\frac{m}{n}}=(\sqrt[n]{x})^m.

Step-by-step explanation:

Consider the provided information.

The following property can be used to rewrite each radical as an exponent.

The numerator tells the power of the resulting rational exponent, and the denominator of the rational exponents tells the root of that number.

x^{\frac{m}{n}}=(\sqrt[n]{x})^m

For example:

(27)^{\frac{2}{3}}=(\sqrt[3]{27})^2

(27)^{\frac{2}{3}}=(3)^2

(27)^{\frac{2}{3}}=9

Hence, the concept or process is x^{\frac{m}{n}}=(\sqrt[n]{x})^m.

5 0
3 years ago
consider the formula F=NM/P, where F represents the fertility of the soil. N represents the amount of nutrients in the soil. M r
Ahat [919]

The options are missing, so i have attached it.

Answer:

Measurement unit for F = (Nutrients • Moisture)/Pollutants.

Option C is correct

Step-by-step explanation:

From the question, we are given the formula; F = NM/P

where;

N is the amount of nutrients in the soil

M is the amount of moisture in the soil.

P is the amount of pollutants in the soil

From the definition of the terms above, the units of the can be expressed as;

N = nutrients

M = moisture

P = pollutants

Thus, the measurement unit for fertility is;

F = NM/P = (Nutrients • Moisture)/Pollutants

6 0
4 years ago
) Jess has saved dimes ($ 0.10) and quarters ($ 0.25) in their piggy bank. Define the variables and write a
Mamont248 [21]

Answer:

Quarters = 10

Dimes = 15

Step-by-step explanation:

d = number of dimes, q = number of quarters

d + q = 25 is the equation for number of coins

0.1d + 0.25q = 4 is the equation for value of coins

First, solve for d in terms of q:

d + q = 25

d = 25 - q

Then substitute that into the other equation:

0.1(25 - q) + 0.25q = 4

2.5 - 0.1q + 0.25q = 4

0.15q = 1.5

q = 10

And back to d = 25 - q, d = 25 - 10 = 15

Check the math:

0.1(15) + 10(0.25) = 1.5 + 2.5 = 4

LMK if you have questions

4 0
3 years ago
The length of a rectangle is 24 more than its width. Find the area of the rectangle if its perimeter is 100 cm.
Serggg [28]

Answer:

481

Step-by-step explanation:

Lets say width = x

Length = x+24

Perimeter is 100 so

100=x+24+x+24+x+x

100=4x+48

100-48=4x

52=4x

x=13

So width = 13

Length = 37

37x13=481

4 0
3 years ago
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