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Gnom [1K]
3 years ago
6

Find an explicit rule for the nth term of the arithmetic sequence. -13, -7, -1, 5, ...

Mathematics
1 answer:
Bad White [126]3 years ago
8 0

Answer:

-13 + 5*n-1 I think

Step-by-step explanation:

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Currently a product has a gear ratio of 17:5, driver:driven. If the company wants to change the product to have the same gear ra
Sedbober [7]

Answer:

10 teeth must go on the driven gear

Step-by-step explanation:

Let the number of teeth be x

In order for the new product to maintain the same ratio as the old the ratio must remain the same. This means that

17:5 = 34:x

\frac{17}{5} = \frac{34}{x}\\Now\ let\ us\ cross-multiply\\17 \times x = 5 \times 34\\17x = 170\\dividing\ both\ sides\ by\ 17 \\x = \frac{170}{17} \\x = 10

∴ 10 teeth must go on the driven gear

hence ratio = 34:10

8 0
3 years ago
Oooffff help me I’m dead
yanalaym [24]
Answer: 288cm²

Explanation:
In the given trapezoid, there are 2 right angled triangles and 1 rectangles.

So,

area of trapezoid

=area of 2 right angled triangles +1 rectangle

=2×[16×3]/2 + 15×16

=48+240

=288 cm²

Note:

Area of right angled triangle

=(base× height)/2

&,

Area of rectangle

= length ×breadth
5 0
3 years ago
Please solve the following system of equations <br> x+3y=8 <br> 2x-y=2
Anuta_ua [19.1K]

Answer:

(2,2)

Step-by-step explanation:

Given equations are

x+3y=8       eq(1)

2x-y=2        eq(2)

we'll solve the system of equation by substitution.

Adding -3y to both sides of eq(1),we get

x+3y-3y=8-3y

x+0=8-3y

x=8-3y     eq(3)

Put above value of x in eq(2),we get

2(8-3y)-y=2

16-6y-y=2

16-7y=2

Adding -16 to both sides of above equation,we get

-16+16-7y=-16+2

0-7y=-14

-7y=-14

Dividing by -7 to both sides of above equation,we get

-7y/-7=-14/-7

y=2

Putting y=2 in eq(3),we get

x=8-3(2)

x=8-6

x=2

hence, the solution for this system of equations is (2,2).

5 0
3 years ago
In this situation, simple interest is calculated yearly.
olganol [36]

Answer: 24,000

Step-by-step explanation:

5 0
3 years ago
How do you write 5/9 as a percentage
Schach [20]
Ok divide the numerator by the denomitator and ur answe wil be 55.5

6 0
3 years ago
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