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g100num [7]
3 years ago
13

What is the area of triangle DEF

Mathematics
2 answers:
Rainbow [258]3 years ago
6 0

Answer: 588 centimeters

Lunna [17]3 years ago
3 0

Answer:

C: 588 square centimeters

Step-by-step explanation:

A= 1/2(b)(h)

base: 42

height: 28

A = 1/2(42)(28)

A = 1/2(1176)

A = 588

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Colin received a bonus check for 2,500$. He is going to deposit the money into his bank account that receives 5.5% simple intere
alex41 [277]
This is the concept of financial mathematics, the simple interest rate is given by:
S.I.=(PRT)/100
where:
P=principle=$2500
R=rate=5.5%
T=time=1 year
Hence;
S.I.=(5.5*2500.1)/100
=$137.5
Thus the total amount he had after 1 year will be:
2500+137.5
=$2,637.5
6 0
3 years ago
Which is the best estimate for the average rate of change for the quadratic function graph on the interval 0 ≤ x ≤ 4?
tatuchka [14]

Answer:

The best estimate for the average rate of change is -2

Step-by-step explanation:

we know that

the average rate of change using the graph is equal to

\frac{f(b)-f(a)}{b-a}

In this problem we have

f(a)=f(0)=0  

f(b)=f(4)=-8

a=0

b=4

Substitute

\frac{-8-0}{4-0}=-2

4 0
3 years ago
Read 2 more answers
An office building has 24 offices on each floor. Each office either face north, south, east, west , and the amount of offices th
yuradex [85]

Answer:

198

Step-by-step explanation:

33 * 24 = 792

792 / 4 = 198

3 0
3 years ago
Samuel can type nearly 40 words per minute. Use this information to find the number of hours it would take him to type 3.2 × 105
Oliga [24]

The hours it would take to type 3.2 x 10^5 words is 1.33 x 10^2  hours.

<h3>How many hours would it take to type 3.2 x 10^5 words?</h3>

Standard form is used in expressing large numbers in smaller numbers. It is used to transform large numbers into smaller number.

In order to write a number in standard form, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10.

For example: 1 x 10² is equivalent to 100

The first step is to determine how many words he can type in 1 hour : 40 x 60 = 2400 words = 2.4 x 10³

The second step is to divide 3.2 x 10^5 words by 2.4 x 10³

3.2 x 10^5 ÷ 2.4 x 10³ = 1.33 x 10^(5 - 3)

1.33 x 10^2  hours

To learn more about standard form, please check: brainly.com/question/25334755

#SPJ1

3 0
1 year ago
Maya wants to buy a piano. The piano measures 19/4 feet long. She has a space 5 feet long for the piano in her house. Does she h
Sophie [7]
Yes, 19/4 is only 4/3/4 so you still have 1/4 ft left to fill
8 0
3 years ago
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