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bogdanovich [222]
3 years ago
12

Which property of equality would be used to isolate the variable a in this equation?. a – 4 = 12. A. addition property of equali

ty. B. subtraction property of equality. C. multiplication property of equality. D. division property of equality
Mathematics
2 answers:
BARSIC [14]3 years ago
5 0
The property of equality that would be used to isolate the variable "a" in this equation is addition property of equality. he correct option among all the options that are given in the question is the first option or option "A". Adding 4 in both sides of the equation will easily isolate the variable "a". I hope the answer helps you.
Minchanka [31]3 years ago
4 0
A - 4 = 12...add 4 to both sides
a = 12 + 4...addition property of equality
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If the area of a square is 32 ft2, how long is its diagonal?
Tema [17]

Diagonal = 8

D=diagonal

A=area

A=D^/2

32=D^/2

32/1 = D^/2

cross multiplication

32x2=D^x1

64=D^

8 =D




7 0
3 years ago
Apple would like to estimate the web browsing battery life of the iPad. The following data represents the battery life, in hours
umka21 [38]

Answer:

12.5 hours

Step-by-step explanation:

The data which represents the battery life, in hours, experienced by six users is given below:

10 14 14 16 13 8

To determine the point estimate for the web browsing battery life of the iPad, we find the mean number of hours.

Mean=\dfrac{10+14+14+16+13+8}{6} \\\\=\dfrac{75}{6} \\\\=12.5

The point estimate for the web browsing battery life of the iPad is: 12.5 hours

8 0
3 years ago
What is the surface area of the rectangular prism below?
seropon [69]

Answer:

A

Step-by-step explanation:

multiply 9 by 12 to get the surface area of the end of the rectangle.

you should get 108.

multiply 12 by 9 to get the surface area of the side.

you should get 135.

multiply 12 by 15 to get the surface area of the bottom.

you should get 180.

then add all your answers and multiply by 2  this will give you the total surface area and you will find that the answer is A.

3 0
3 years ago
What is the ratio of boys to girls in Mrs. Carlton's class, which has a total of 31 students, 14 of whom are girls?
saw5 [17]

Answer:

17:14 or 17 to 14

Step-by-step explanation:

since you know there are 14 girls, subtract 14 from 31 and then you'll get 17. since its asking for a ratio of boys to girls not girls to boys, you put boys first, then girls. so your answer will be 17:14

8 0
3 years ago
Use the information to answer the questions. In triangle ABC, a = 11 in., m<B=70, and c=9 in. Which information about the tri
nataly862011 [7]
Answer:
SAS

Explanation:
In triangle ABC:
a would be the side opposite to angle A
c would be the side opposite to angle C

Combining the given, we would fine that we have the measures of two of the sides and the measure of the angle included between them.
This means that we have SAS information.

Check the attached image for visual illustration.

Hope this helps :)

4 0
4 years ago
Read 2 more answers
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