Anyone help please I’m wasting my points for no reason

Mathematics

1 answer:

Alex_Xolod [135]2 years ago

8 0

Answer:

Qn1: -37

Qn2: 16

Qn3:-33.6

Step-by-step explanation:

Qn1:

k(4) = -4*4-6 = -16-6 = -22

m(5) = (5^2)-8*5=-15

k(4)+m(5)= -22+ (-15)= -37

Qn2:

m(-2)= 4 -8*(-2)= 20

n(10) = 2 -6 = -4

20+ (-4)=16

Qn3:

n(-100)= -20-6 = -26

k(-8) = -1.6 -6= -7.6

-26+ (-7.6) = -33.6

You might be interested in

Order the following from greatest to least -0.4,0.8

JulijaS [17]

Certainly negative number is smaller than a positive number

So the order is 0.8 , -0.4
Here 0.8 is the greatest while -0.4 is least

Hope This Helps You!

3 0

3 years ago

PLS help i've been trying this for an hour i still don't get it

Tems11 [23]

I don’t know how to solve this but I think u have to use the fractions with the other numbers and multiply them then divide

4 0

3 years ago

The length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with me

andrey2020 [161]

Answer:

0.5466

Step-by-step explanation:

Given that the length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 266 days and standard deviation 16 days.

Let X be the length of pregnancies

X is N(266,16)

To find out the probability that pregnancies last between 240 and 270 days (roughly between 8 months and 9 months)

P(240<x<270)

convert each into Z score as $z=\frac{x-266}{16}$