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2 years ago

Someone help me plz ???

Mathematics

1 answer:

kirill115 [55]2 years ago

6 0

Answer:

158cm squared

Step-by-step explanation:

Area of triangle=1/2×b×h

Area of rectangular base of prism=l×w

Area of 2 rectangular sides of the prism=l×w

So Total surface area= 1/2×6×5×2)+(8×6)+(8×5×2)=158cm squared

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If f(1) = 6 and f(n) = f(n − 1) +3, then f(7) =<br> (1) 10 (2) 24 (3) 15<br> (4) 18

Juliette [100K]

Answer:

Step-by-step explanation:

f(n) = f(n − 1) + 3

if n = 7 => f(7) = f(7-1) + 3 = f(6) + 3

if n = 6 => f(6) = f(6-1) + 3 = f(5) + 3

if n = 5 => f(5) = f(5-1) + 3 = f(4) + 3

if n = 4 => f(4) = f(4-1) + 3 = f(3) + 3

if n = 3 => f(3) = f(3-1) + 3 = f(2) + 3

if n = 2 => f(2) = f(2-1) + 3 = f(1) + 3

if f(1) = 6 then f(2) = 9

f(3) = 12

f(4) = 15

f(5) = 18

f(6) = 21

f(7) = 24

3 0

2 years ago

Whenever 2 line or intersect at 90 the 2 lines are said to be ?

Sedaia [141]

Two lines that intersect at 90 degrees are considered perpendicular to each other.

7 0

3 years ago

Read 2 more answers

Math homework questions

DanielleElmas [232]

Y= 1/2x -2 is the equation for this line.

3 0

2 years ago

What is the probability of picking a vowel from the letters A, B, C, D, and E?

Allushta [10]

Answer:

d because its big

Step-by-step explanation:

5 0

3 years ago

Gerry thinks that the points (4,2) and (−1,4) form a line perpendicular to a line with slope 4. Do you agree? Why

faust18 [17]

Answer:

The answer to your question is these lines are not perpendicular.

Step-by-step explanation:

Data

A (4, 2)

B (-1, 4)

slope = m = 4

Perpendicular lines mean that these lines cross and form an angle of 90°. Also, the slope of perpendicular lines is negative reciprocals.

Process

1.- Find the slope of the second line and compare it to the slope given.

slope = $\frac{y2 - y1}{x2 - x1}$

Substitution

slope = $\frac{4 - 2}{-1 - 4}$

Simplification and result

slope = $\frac{-2}{5}$

-2/5 is not a negative reciprocal of 4, so these lines are not perpendicular.

4 0

3 years ago