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3 years ago

Write the equation for the line in slope intercept form

Mathematics

1 answer:

lianna [129]3 years ago

3 0

Answer:

y = -x + 5

Step-by-step explanation:

lmk if you want an explanation

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NEED HELP PLEASE!! WILL GIVE A MEDAL!!

malfutka [58]

Hello,

Part A:

f(2)=4*2²=16
f(1)=4*2^1=8
2-1=1
(f(2)-f(1))/(2-1)=(16-8)/1=8 ; r_1=8

f(3)=4*2^3=32
f(4)=4*2^4=64
(f(4)-f(3))/(4-3)=(64-32)/1=32 ; r_2=32

Part B:
r_2=32=4*8=4*r_1

Explainations:

(4*2^2-4*2^1)/(2-1)=4*2^1(2-1)=4*2
(4*2^4-4*2^3)/(4-3)=4*2^3*(2-1)=4*8=(4*2)*4

8 0

4 years ago

zhenek [66]

Answer:

Just substitute the values in!
(-5/9) + (-4/3) - 2/3 = - 5/9 - 12/9 - 6/9 = -23/9.

7 0

2 years ago

Diagram shows the composite solid formed by a cuboid and a right prism. Trapezium LMNP is the uniform cross section of the prism

kherson [118]

Answer:

MN = 7 cm

Step-by-step explanation:

Well the volume we can separate into pieces

first the ABCDEFGH (? you know this cuboid)

which has a volume of

$V = AB\cdot BC\cdot CH\\\\V = 3*6*(3+JY+4)$

if you ask where does the 4 come from

it comes from LP = KB = YC and JY + YC =JC

$V = 18(7+MX)$

this is because JY = MX

the other volume is of BCNPKLXY (hope you understand which one)

and the volume is

$V = BP*PN*NX\\\\V=8*6*4\\\\V = 192$

and the last one is KYXLMJ (the top "triangle")

the volume is

$V = \frac{LX*XM}{2}*LK\\\\V = \frac{6*MX}{2}*8\\\\V= 6*4*MX\\\\V=24MX$

so now add them up

and has to equal 444

$V_T = 18(7+MX)+192+24MX\\\\V_T = 126+18MX+192+24MX\\\\V_T = 318+42MX\\\\444=318+42MX\\\\444-318=42MX\\\\126=42MX\\\\MX = 3$

and finally we know that MN = MX + XN = 3+4 = 7

so here is our answer MN = 7 cm

a couple of notes

$1.\:\angle LXM = 90\\\\2.\:\angle KYX = 90$

3. the units don't matter due to the fact that everything is in cm

4. see the picture below to get a better idea of which prism I am talking of

5. tell me if you have questions :D

8 0

3 years ago

Evaluate the expression for the given value of the variable(s).<br><br> -x2 - 4x; x = –3

yaroslaw [1]

Answer:

Step-by-step explanation:

Subbing -3 for x in -x^2 - 4x, we get -(-3)^2 - 4(-3)

OR -9 +12

Final result: 3

7 0

3 years ago

Hola, me podrían ayudar a simplificar está ecuación?<br> 5x^2-7x(3x-8)+3x^2-8x+3

KengaRu [80]

Answer:

-13x^2+48x+3

Step-by-step explanation:

=8x^2-21x^2+56x-8x+3

= -13x^2+48x+3

(Recuerde hacer preguntas en inglés la próxima ve）

8 0

4 years ago