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SashulF [63]
3 years ago
7

Please help ill mark brilliant​

Mathematics
2 answers:
Anastasy [175]3 years ago
8 0
B is the answer to the question :)
Black_prince [1.1K]3 years ago
7 0
Answer: B

Explanation: Trust me
You might be interested in
Part A
Nat2105 [25]

Answer:

A.  f(n) =0.2n+4.8

B. The y intercept is 4.8

Step-by-step explanation:

Given

a_n= 5 + 0.2(n-1)

Solving (a): Write as a function.

To do this, we simply substitute f(n) for a_n

a_n= 5 + 0.2(n-1) becomes

f(n)= 5 + 0.2(n-1)

Open Bracket

f(n) = 5 + 0.2n-0.2

Collect Like Terms

f(n) =0.2n-0.2 + 5

f(n) =0.2n+4.8

B. The y intercept.

To get the y intercept, we set n to 0

i.e

f(0) =0.2 * 0+4.8

f(0) =0+4.8

f(0) =4.8

Hence, the y intercept is 4.8

4 0
2 years ago
4. Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.
artcher [175]

<span>Is the following definition of perpendicular reversible? If yes, write it as a true biconditional.</span>

Two lines that intersect at right angles are perpendicular.

<span>A. The statement is not reversible.   </span>

<span>B. Yes; if two lines intersect at right angles, then they are perpendicular.   </span>

<span>C. Yes; if two lines are perpendicular, then they intersect at right angles.   </span>

<span>D. Yes; two lines intersect at right angles if (and only if) they are perpendicular.</span>



Your Answer would be (D)

<span>Yes; two lines intersect at right angles if (and only if) they are perpendicular.


</span><span>REF:    2-3 Biconditionals and Definitions</span>
6 0
3 years ago
Read 2 more answers
Frank invested $30,000 at 4% simple interest. How much interest will he earn each year?
Oduvanchick [21]

Answer:

$1200 interest

Step-by-step explanation:

$30,000 divided by 100 = 300 , 300 multipled by 4 = 1200 , thats how to find what 4% would be

3 0
2 years ago
Determine the surface area of the cylinder below.
Dahasolnce [82]

Answer:

<u>9π m²</u>

Step-by-step explanation:

We will need calculate the area of the top, the base and  sides.

Area of the top=πr²

Area of the base=πr²

Area of the side: 2πrh

Surface area of a cylinder: area of the top + area of the base +area of the side

Surface area of a cylinder=πr²+πr²+2πrh=2πr²+2πrh=2πr(r+h)

Data:

r=1.5 m

h=1.5 m

Surface area of this cylinder=2π(1.5m)(1.5 m+1.5 m)=3π m*(3 m)=9π m².

6 0
3 years ago
Which relations are functions?
guapka [62]

Answer:

The 1st and 2nd graph are functions while the 3rd and 4th aren't.

Step-by-step explanation:

The first and second graph doesn't have more than one output for each input. The third and fourth graph isn't a function since there's more than one output for the same input given. If you do the vertical line test, then you'll know which one is a function and which one is not a function. Hope this helps :)

3 0
3 years ago
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