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3 years ago

Why do you start multiplying with the ones place when using regrouping to multiply

Mathematics

1 answer:

Firdavs [7]3 years ago

4 0

If you start with the tens it will mess up the problem

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Determine the general solution of cos2X -7cosX -3=0

vovikov84 [41]

Answer:

x=2pi/3 +2pi n, 4pi/3 +2pi n for all integar of n.

Step-by-step explanation:

3 0

3 years ago

Rosa is building a guitar. The second fret is 33.641\,\text{mm}33.641mm33, point, 641, start text, m, m, end text from the first

Wittaler [7]

Answer:

$65.39\ mm$

Step-by-step explanation:

Given

The second fret is $33.641\ mm$ from the first fret.

The third fret is $31.749 mm$ from the second fret.

Distance of third fret from the first fret $=$

Distance from first fret to second fret $+$ Distance from second fret to third fret.

$=33.641+31.749\\=65.39\ mm$

Hence, we can see the third fret is $65.39\ mm$ from the first fret.

5 0

3 years ago

Please I need help

lisabon 2012 [21]

-1, -3/4, -5/8, -1/20, 0

Keep in mind that when ordering negative numbers from least to greatest, you will have to order them backwards. Think about it in terms of the distance from the number line. -1 is the farthest away from 0, therefore the least, -3/4 is the second farthest from 0, and so on.

5 0

4 years ago

Read 2 more answers

Cal is measuring temperature changes in four substances over different time periods as part of a school project. Which data show

djyliett [7]

Answer:

C) The third table. K= 5

$C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5$

Step-by-step explanation:

1) Below there are the missing data:

A proportional relationship through a constant k. It is obtained when we divide:

$k=\frac{y}{x}$

2)In this case, when we divide the temperature (T) by the time (h).

$k=\frac{T}{h}$

3)So, examining the table below we are searching for a ratio k common to all measures (temperatures over hour).

$A) \frac{12}{3}\neq\frac{25}{5}\neq\frac{36}{6}\neq\frac{81}{9}\\B) \frac{22.5}{3}\neq\frac{30}{4}\neq\frac{52.5}{7}\neq\frac{67.5}{8}\\C)\frac{10}{2}=\frac{15}{3}=\frac{25}{5}=\frac{40}{8}=k= 5\\D)\frac{8.5}{2}\neq\frac{22.5}{5}\neq\frac{28.5}{7}\neq\frac{36}{8}$