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iragen [17]
2 years ago
6

Hii, please help me w this :(( tysm

Mathematics
1 answer:
Ipatiy [6.2K]2 years ago
6 0

Answer:

7. y

=

−

1

/2

x  +  4

8.  y= (0,4)

Step-by-step explanation:

7. the slope is -1/2 and the y intercept is 4

8. so basically, the y intercept is when y is zero, which makes this one (0,4)

HOPE THIS HELPS HAVE A GREAT DAY!!!  IM procrastinating chem doing this lolz

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calculate the total potential energy in kj of an object whose mass is 20 kg when it is located 20 m below a datum level in a loc
Airida [17]

Answer:

The energy in object is 3.8 Kilo Joules.  

Step-by-step explanation:

We are given the following in the question:

Mass = 20 kg

Height,h = 20 m

g=9.5 m/s^2

Formula:

Potential energy  =

E = Mgh

Putting value we get,

E = 20(20)(9.5)\\E = 3800~J\\E = 3.8~KJ

Thus, the energy in object is 3.8 Kilo Joules.

5 0
3 years ago
Calculate the perimeter of this shape.<br> 12 cm<br> 18 cm
chubhunter [2.5K]

Answer:

Step-by-step explanation:

P = 2l + 2w

= 2(12) + 2(18)

= 24 + 36 = 60

3 0
3 years ago
For the functions f(x)=2x^2+3x+9 and g(x)=−3x+10 find (f⋅g)(x) and (f⋅g)(1)
pashok25 [27]

Step-by-step explanation:

f(x)=2x²+3x+9

g(x) = - 3x + 10

In order to find (f⋅g)(1) first find (f⋅g)(x)

To find (f⋅g)(x) substitute g(x) into f(x) , that's for every x in f (x) replace it by g (x)

We have

(f⋅g)(x) = 2( - 3x + 10)² + 3(- 3x + 10) + 9

Expand

(f⋅g)(x) = 2( 9x² - 60x + 100) - 9x + 30 + 9

= 18x² - 120x + 200 - 9x + 30 + 9

Group like terms

(f⋅g)(x) = 18x² - 120x - 9x + 200 + 30 + 9

(f⋅g)(x) = 18x² - 129x + 239

To find (f⋅g)(1) substitute 1 into (f⋅g)(x)

That's

(f⋅g)(1) = 18(1)² - 129(1) + 239

= 18 - 129 + 239

We have the final answer as

<h3>(f⋅g)(1) = 128</h3>

Hope this helps you

3 0
3 years ago
If a= lw and if l= 1.5 and w = 0.75 what does a equal
stira [4]
Oi :)

a= l*w
a=1.5 * 0.75
a= 1.125
3 0
3 years ago
Read 2 more answers
I need hlp with this sorry didn't know I didn't add an attachment the first time.
Eva8 [605]

the answers are

7/10

306/1000

1/100

9/1000


hope this helps!

8 0
3 years ago
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