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dlinn [17]
3 years ago
6

7b 15 4 Help fast pls

Mathematics
2 answers:
Sladkaya [172]3 years ago
7 0

Answer:

What!??!

Step-by-step explanation:

7b + 15 ??

or

7b x 15

timurjin [86]3 years ago
7 0
Wait i don’t understand your question what is it
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Find the Surface Area and the Volume.
guajiro [1.7K]

Answer:

Surface area = 850 cm²

Volume = 1000 cm³

Step-by-step explanation:

Applying,

A = h(a+b+c+d)................ Equation 1

Where A = Surface area of the trapezoidal prism, a, b, c, d = length of the four sides the trapezium respectively, h = height of the prism.

From the diagram in the question,

Given: h = 25 cm, a = 6 cm, b = 14 cm, c = 7 cm, d = 7 cm

Substitute these values into equation 1

A = 25(6+14+7+7)

A = 25(34)

A = 850 cm²

From the volume,

V = A'h...................... Equation 2

Where A' = Area of the base.

From the diagram,

A' = 1/2(6+14)4

A' = 40 cm²

Therefore,

V = 40×25

V = 1000 cm³

8 0
3 years ago
If a person walks 1/3 mile in 15 minutes, how far will that person walk in one hour? (ik im dumb dont need to say it.)
Rainbow [258]

Answer:

1 and 1/3 miles in an hour

Step-by-step explanation:

thats slow, ive walked a mile in ten minutes, lol

7 0
3 years ago
Given the Arithmetic sequence A1,A2,A3,A4 44, 51, 58, 65 What is the value of A39?
snow_lady [41]
This is an arithmetic sequence because there is a common difference between terms, a constant found when subtracting the preceding term from any term in the sequence.  In this case the common difference is 7.

Any arithmetic sequence can be expressed as:

a(n)=a+d(n-1), a=initial value, d=common difference, n=term number

Here we have a=44 and d=7 so

a(n)=44+7(n-1)

a(n)=44+7n-7

a(n)=7n+37, so the 39th term is:

a(37)=7(37)+7

a(37)=266

I am assuming that 44 is the first term, not the 5th term...if 44 was the fifth term let me know and I will edit to reflect that...
6 0
3 years ago
Read 2 more answers
I NEED THE RIGHT ANSWER NOW
nadezda [96]

Answer: 2 hours and 15 minutes I think.....I tried:(

7 0
3 years ago
A truck enters a highway at 60 mph. A car enters the highway at the same place 11 minutes later and drives 74 mph in the same di
Crank

Answer:

Since speed is given in terms of "hours" we must convert 9 minutes to hours:

9 minutes = 9/60 hours = 3/20 hours

.

Let x = time (hours) it takes car to pass the truck

then

60(x + 3/20) = 69x

multiplying both sides by 20:

60(20x + 3) = 1380x

1200x + 180 = 1380x

180 = 180x

1 hour = x

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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