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2 years ago

Need help with this please!!!

Mathematics

1 answer:

BARSIC [14]2 years ago

5 0

I don't like dividing polynomials so I'm going to set x=1 and try them out.

(1-2-14+3)/4 = -3

Of the choices, only D gives -3 when x=1

~~~~~~~~~~~~~~~~~~~~~~

That's as much test-taking as math. If we were to divide

x^2 - 5x + 1
-------------------------------
x + 3 | x^3 - 2x^2 - 14x + 3
x^3 + 3x^2
-5x^2 - 14x
5x^2 + 15x
x + 3
x + 3

More work, still choice D

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4 x 10^6 is how many times large then 1 x 10^4

Molodets [167]

Answer:

Step-by-step explanation:

$4\times10^6\text{ is how many times large than}\ 1 \times 10^4?\\\\\dfrac{4\times10^6}{1\times10^4}=\dfrac{4}{1}\times\dfrac{10^6}{10^4}=4\times10^{6-4}=4\times10^2=4\times100=400$

4 0

3 years ago

Name the angle that is supplementary to < COB 1. AOF 2.COD 3.BOF 4.DOC

Travka [436]

The angle that is supplementary to <COB is one that is next to it (in some relation)
and when you add the two angles together, they shall equal 180°.

Hope this will help

5 0

3 years ago

Will someone help with this ! I was allowed a retry for it and I don’t know how to do it

pashok25 [27]

Answer:

$\frac{dN}{dt}=k(725-N)\\separating the variables and integrating\\\int \frac{dN}{725-N}=\int kdt+c\\-log (725-N)=kt+c\\log (725-N)=-kt-c\\(725-N)=e^{-kt-c} =e^{-kt} *e^{-c} =Ce^{-kt} \\when t=0,N=400\\725-400=Ce^{0} =C\\C=325\\when t=3,N=650\\725-650=325e^{-3k} \\\frac{75}{325}=(e^{-k})^3\\\\e^{-k} =(\frac{3}{13}) ^{\frac{1}{3} } \\when t=5\\725-N=325(\frac{3}{13}) ^{\frac{5}{3} } =325*\frac{3}{13}*(\frac{3}{13} )^{\frac{2}{3}}\\N=725-75*(\frac{3}{13} )^{\frac{2}{3} }=725-28=697$

Step-by-step explanation:

6 0

2 years ago

at one store 3 sweaters cost $44.99 and at a store next door the same sweater costs $52.00 for 4 which store has the better deal

Liono4ka [1.6K]

Answer:

The first store

Step-by-step explanation:

3sweaters->$44.99

4sweaters->x

x=4×44.99/3 x=$59.98

3sweaters->$52.00

4sweaters->x

x=4×52/3 x=$69.33

first store<second store

59.98<69.33

8 0

2 years ago

−3x^ 2 +6x+9=<br> factor

GrogVix [38]

Answer:

the answer in factor form would be

-3(

7 0

2 years ago