4 years ago

Need help wit #4 giving brainlyist

Mathematics

1 answer:

xenn [34]4 years ago

4 0

23, 0.67, 72 I think that correct

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Write an expression for 105.067 in expanded form by multiplying each digit by a decimal fraction

gayaneshka [121]

Answer:

100*1+0*1+5*1+0*.0+1*.06+1*.007

Step-by-step explanation:

3 0

4 years ago

Plan a is 18 inches tall after one week 36 inches tall after two weeks 56 inches tall after three weeks Plan B is 18 inches tall

morpeh [17]

Plan b because 18×1 (height×number of weeks) is 18. 18×2 is eyes and 18×3 is 54

4 0

3 years ago

Find the number that makes 4:12 equivalent to 28:__.

guapka [62]

Answer:

Step-by-step explanation:

We can set up a proportion using fractions.

$\frac{4}{12} = \frac{28}{x}$

Now, let's cross multiply by multiplying 12 and 28 then dividing by 4.

$12\cdot28=336\\\\336\div4=84$

Hope this helped!

6 0

3 years ago

Read 2 more answers

Solve this into y=mx+b form. Please help me with the steps. Thank you

kati45 [8]

Answer:

y = 4x - 3

Explanation:

4x – y + 6 = 9 Subtract 6 from each side

4x – y = 3 Subtract 4x rom each side

-y = -4x + 3 Multiply each side by -1

y = 4x - 3

6 0

4 years ago

A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

The formula of a volume of a cylinder:

$V=\pi r^2H$

r - radius

H - height

We have r = 1cm and H = 21cm. Substitute:

$V=\pi(1^2)(21)=21\pi\ cm^3$

The formula of a cone:

$V=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have V = 21π cm³ and H = 7cm. Substitute:

$\dfrac{1}{3}\pi(r^2)(7)=21\pi$ <em>divide both sides by π</em>

$\dfrac{1}{3}(7)(r^2)=21$ <em>divide both sides by 7</em>

$\dfrac{1}{3}r^2=3$ <em>multiply both sides by 3</em>

$r^2=9\to r=\sqrt9\\\\r=3\ cm$

5 0

3 years ago

Read 2 more answers