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3 years ago

Simplify the expression below 17. 5 + 3 . (8.1 - 2.3)

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

8 0

The expression is 22.4.

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Find the slope of a line perpendicular to 2x-y-16

Alekssandra [29.7K]

put the equation 2x - y = 16 in the form of y = mx + c

2x - y = 16

2x = 16 + y

y = 2x - 16

the slope of this line is 2. the slope of a line perpendicular to it would be the negative reciprocal of 2. in other words, it would multiply with 2 to give -1.

you can form this equation with that info

2x = -1

x = -1/2

you can flip and change the sign (numerator) of 2/1

2/1

= -1/2

6 0

3 years ago

All you need is on the photo

mariarad [96]

Answer:

$4^{-3}$

Step-by-step explanation:

$We\ are\ given\ that,\\4^4*4^{-8}*4\\We\ know\ that,\ for\ any\ real\ number\ n, n^a*n^b=n^{(a+b)}\\Hence,\\First,\ lets\ write\ all\ the\ terms\ in\ an\ exponential\ form.\\4^4*4^{-8}*4^1\\=4^{(4+(-8)+1)}\\=4^{(5-8)}\\=4^{-3}$

5 0

3 years ago

I'm pretty sure its D.

lidiya [134]

I hope this helps you

5=7x+0.1+10x-0.2

17x=5.1

x=5.1/17

x=3/10

x=0.3

7 0

3 years ago

Last month,Margo bought a tree that grows 2.5cm each day.It was 5cm tall when she bought it and now it 65cm tall. Write a equati

Effectus [21]

Answer:

The equation to determine the number of days Margo has owned the plant is $5+2.5x=65$ .

Step-by-step explanation:

Given:

Actual length of the tree = 5 cm

Current length of the tree = 65 cm

Per day growth Rate of plant = 2.5 cm

Let number of days she owned the plant be 'x'

Now We can say that,

Current length of the tree is equal to sum of Actual length of the tree and Per day growth Rate of plant multiplied by number of days she owned the plant.

Farming the above sentence in equation form we get;

$5+2.5x=65$

Hence the equation to determine the number of days Margo has owned the plant is $5+2.5x=65$ .

4 0

2 years ago

ben is showing his work in simplifying (3.9 − 9.4) − 0.6 6.1. identify any error in his work or reasoning. step 1: (3.9 − 9.4) −

motikmotik

He wrote identity instead of commutative in step 4

4 0

2 years ago