Video: Yuav ua li cas koj muab siv ib cheeb tsam qauv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
4. NBT. B. 5: Ntau ib tus lej tag nrho txog li plaub tus lej los ntawm ib tus lej tag nrho, thiab ntau ob tug lej, siv cov tswv yim raws li qhov chaw tus nqi thiab cov khoom ntawm kev ua haujlwm.
Ib yam li ntawd, koj tuaj yeem nug, koj ua li cas hauv cheeb tsam txoj kev?
Cov txheej txheem algorithm feem ntau yog nrawm dua txoj kev tab sis, tsis zoo li cov cheeb tsam txoj kev , nws tsis txhawb kev nkag siab lossis txhawb kev loj hlob ntawm kev xav lej.
2-Digit x 2-Digit Multiplication Siv Txoj kev Cheeb Tsam.
| 40 | 2 | |
|---|---|---|
| 5 | 200 | 10 |
| 800 + 200 + 40 + 10 = 1050 | ||
Dab tsi yog tus qauv algorithm rau kev sib npaug? Cov txheem algorithm yog ib txoj kev ua kev sib npaug los ntawm kev siv cov khoom ib nrab lossis kev sib npaug hauv qhov chaw. Koj ua dab tsi nrog qhov no algorithm yog ntau tus lej saum toj kawg nkaus los ntawm tus lej hauv qab ib tus lej ntawm ib lub sijhawm, ua haujlwm koj txoj hauv kev los ntawm sab xis mus rau sab laug.
Raws li, tus qauv cheeb tsam yog dab tsi?
Hauv lej, ib cheeb tsam qauv yog daim duab duab plaub los yog qauv siv rau kev sib faib thiab faib cov teeb meem, nyob rau hauv uas cov yam ntxwv los yog cov quotient thiab divisor txhais qhov ntev thiab dav ntawm lub duab plaub. Tom qab ntawd peb ntxiv kom tau qhov cheeb tsam ntawm tag nrho, uas yog cov khoom lossis quotient.
Tus qauv ntawm cheeb tsam yog dab tsi?
Ib cheeb tsam qauv yog ib qho cuab yeej pom zoo heev vim nws tuaj yeem siv los ua kom muaj kev nkag siab zoo txhua yam feem teeb meem. Nws tso cai rau cov me nyuam pom cov feem . Ib cheeb tsam qauv sawv cev a feem raws li ib daim duab plaub, muab faib ua vaj huam sib luag.
Pom zoo:
Yuav ua li cas koj xam lub thawv cheeb tsam?
Qhov dav, qhov siab, thiab ntev ntawm ib lub thawv tuaj yeem sib txawv. Yog hais tias lawv yog tib yam, ces lub thawv yuav ua aperfectly square box. Qhov ntim, lossis qhov chaw nyob hauv lub thawv yog h × W × L. Qhov chaw sab nraud ntawm lub thawv yog 2 (h × W) + 2 (h × L) + 2 (W × L)
Yuav ua li cas koj pom qhov lateral thiab deg cheeb tsam ntawm ib lub tog raj kheej?
Txhawm rau nrhiav thaj chaw sab nraud, peb pom qhov perimeter, uas nyob rau hauv rooj plaub no yog qhov ncig (qhov kev ncua deb ntawm lub voj voog), ces muab nws los ntawm qhov siab ntawm lub tog raj kheej. C sawv cev rau ib ncig, d sawv cev rau txoj kab uas hla, thiab lub cim pi yog sib npaug rau 3.14
Tus qauv qauv yog dab tsi Qhov txawv ntawm tus qauv qauv thiab tus qauv molecular yog dab tsi?
Cov mis mos molecular siv cov cim tshuaj thiab cov ntawv sau npe los qhia cov naj npawb ntawm cov atoms sib txawv hauv cov molecule lossis compound. Ib qho empirical formula muab qhov yooj yim tshaj plaws, tag nrho tus lej piv ntawm atoms hauv ib qho chaw. Cov qauv qauv qhia txog kev sib koom ua ke ntawm cov atoms hauv cov molecule
Yuav ua li cas koj pom lub hauv paus cheeb tsam ntawm daim duab peb sab prism?
Ib daim duab peb sab prism muaj peb lub duab plaub sab thiab ob lub ntsej muag daim duab peb sab. Txhawm rau nrhiav thaj tsam ntawm lub kaum sab xis, siv tus qauv A = lw, qhov twg A = thaj tsam, l = ntev, thiab h = qhov siab. Txhawm rau nrhiav thaj tsam ntawm daim duab peb sab, siv cov qauv A = 1/2bh, qhov twg A = thaj tsam, b = puag, thiab h = qhov siab
Thaum twg koj yuav tsum siv correlation thiab thaum twg koj yuav tsum siv yooj yim linear regression?
Regression feem ntau yog siv los tsim cov qauv / qhov sib npaug los kwv yees cov lus teb tseem ceeb, Y, los ntawm cov txheej txheem kwv yees (X) sib txawv. Kev sib raug zoo feem ntau yog siv los ua kom sai thiab ua kom luv luv cov kev taw qhia thiab lub zog ntawm kev sib raug zoo ntawm ib pawg ntawm 2 lossis ntau tus lej sib txawv