3 years ago

Can someone please help me?

Mathematics

1 answer:

Roman55 [17]3 years ago

4 0

Answer:

-6

Step-by-step explanation:

You might be interested in

50 w +100 is greater than or equal to 18000

Marrrta [24]

What you would do to “simplify” the equation is 18000-100 then divide by 50. The answer would be 358. Hoped this helped!

8 0

3 years ago

A. What is the explicit definition for this sequence?<br><br>b. How far does she run on day 19?

creativ13 [48]

Answer:

(a) $a_n=1+\frac{1}{6}(n-1)$

(b) 4 miles

Step-by-step explanation:

Given:

The sequence of run is an arithmetic sequence.

Miles traveled on day 1 = 1 mile

Miles traveled on day 7 = 2 miles

(a).

Explicit formula for an arithmetic sequence is given as:

$a_n=a_1+(n-1)d\\a_n\to n^{th}\ term\\a_1\to first\ term\\n\to number\ of\ terms\\d\to \textrm{common difference}$

Here, $a_1=1,a_7=2$

So,

$a_7=a_1+(7-1)d\\2=1+6d\\6d=2-1\\d=\frac{1}{6}$

Therefore, the explicit definition of the above sequence is given as:

$a_n=1+\frac{1}{6}(n-1)$

Where, $a_n$ is the miles covered on $n^{th}$ day.

(b)

In order to find the distance covered by her on day 19, we plug in 19 for n in the above formula. This gives,

$a_{19}=1+\frac{1}{6}(19-1)\\\\a_{19}=1+\frac{1}{6}(18)\\\\a_{19}=1+3=4\ mi$

Therefore, the number of miles covered by her on day 19 is 4 miles.

3 0

3 years ago

The perimeter of a sector of a circle of radius 21cm is 64cm,find the angle of the sector

Alla [95]

Answer:

The angle is 60 degrees

Step-by-step explanation:

3 0

3 years ago

Round to the nearest hundredth 9.8766

Levart [38]

Answer: 9.88

6 0

3 years ago

Read 2 more answers

What is the value of y in the equation 6.4x + 2.8y = 44.4, when x = 3?

Andrej [43]

Answer:

y = 9

Step-by-step explanation:

So if x = 3, we can sub that into the equation.

This gives us:

6.4 (* 3) + 2.8y = 44.4

so:

19.2 + 2.8y = 44.4

25.2 = 2.8y

y = 9

5 0

4 years ago

Read 2 more answers