2 years ago

In a sequnece u5=-3.7 and u15 =-52.3, what is the 19th term

Mathematics

1 answer:

PilotLPTM [1.2K]2 years ago

6 0

u19=-71.74

Step-by-step explanation:

u5=a+4d=-3.7....(1)

u15=a+14d=-52.3....(2)

-10d=48.6

d=-48.6/-10

d=-4.86

Substitute-4.86 into....(1)

u5=a+4(-4.86)=-3.7

a+(-19.44)=-4.7

a=-3.7-(-19.44)

a=15.74

19term=a+18d=?

=15.74+18(-4.86)

=15.74+(-87.48)

19th term =-71.74

You might be interested in

Find the area of this parallelogram. 8.7 cm 10.1 cm 16.9 cm

Tpy6a [65]

Answer:

$A=147.03\text{ cm}^2$

Step-by-step explanation:

The area for a parallelogram is given by the formula:

$A=bh$

Where b is the base length and h is the vertical height.

The base length is 16.9 while the vertical height is 8.7. Thus:

$A=(16.9)(8.7)$

Multiply using a calculator:

$A=147.03\text{ cm}^2$

3 0

3 years ago

Read 2 more answers

Which graph represents the solution of the system: y=3y=2x−1

barxatty [35]

Answer:

The second graph

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find an equation for the linear function which has y-intercept-2 and x-intercept 9. fx =

oksano4ka [1.4K]

Answer:

f(x) = -2x +9

Step-by-step explanation:

We can use the slope intercept form

y= mx +b where m is the slope and b is the y intercept

y = -2x +9

Replacing y with f(x)

f(x) = -2x +9

8 0

2 years ago

Read 2 more answers

Trisha had a bowling score of 126 for the first game. She had a score of 97 for the second game.

NeTakaya

Answer:

23% decrease

Step-by-step explanation:

3 0

2 years ago

Given f(x) = √(x-3) , what is the positive value of f(12)?

Shalnov [3]

Answer:

Step-by-step explanation:

Given

f(x) = $\sqrt{(x-3)}$ , then

f(12) = $\sqrt{12-3}$ = $\sqrt{9}$ = ± 3

There are 2 values 3 and - 3

The positive value of f(12) is + 3

6 0

3 years ago