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2 years ago

I really need help with this math question

Mathematics

1 answer:

Ratling [72]2 years ago

7 0

Answer:

Step-by-step explanation:

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Express the missing divisor using a power of 10. Explain your reasoning using a place value model. 5.2 ÷ ___ = 0.052 *

Colt1911 [192]

Answer:

the answer is 100

Step-by-step explanation:

bc it is moved over 2 places to the left, plz can i be brainliest

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2 years ago

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Jin bought a book that cost $5.60if the tax rate is 70% how much tax did he pay?

USPshnik [31]

$\bf \begin{array}{|c|ll}\cline{1-1}\textit{a\% of b}\\\cline{1-1}\\\left( \cfrac{a}{100} \right)\cdot b\\\\\cline{1-1}\end{array}~\hspace{5em}\stackrel{\textit{70\% of 5.60}}{\left( \cfrac{70}{100} \right)5.60}\implies 3.92$

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2 years ago

What is 2,500 written in scientific notation?

Anastaziya [24]

2,5 * 10^3
25 * 10^2
0,25 * 10^4

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2 years ago

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HELP !! Find the x with the details in this picture^^

zvonat [6]

Answer:

x = 3.9

Step-by-step explanation:

So the whole angle PQS = 111 degrees

it gave you part of it so subtract that off . 111 - 72 = 39 degrees

10 times what equals about 39 degrees.

39/ 10 = 3.9

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3 years ago

F(x)=3x 2+x<br><br><br> Find f(−5)

Zina [86]

$\huge \boxed{\mathfrak{Question} \downarrow}$

f (x) = 3x² + x
Find f (-5).

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

Given,

f (x) = 3x² + x

Now, we have to find f (-5). To find this, we just need to substitute -5 in the place of x.

So,

$\sf \: f(x) = {3x}^{2} + x \\ \\ \sf \: \: Substitute \: x \: as \: - 5. \\ \\ \sf \:f( - 5) = 3( - 5) ^{2} + ( - 5) \\ \\ \sf \:Calculate \: -5 \: to \: the \: power \: of \: 2 \: and \: get \: 25. \\ \\\sf \: 3\times 25+5 \\ \\ \sf \:Multiply \: 3 \: and \: 25 \: to \: get \: 75. \\ \\\sf \: 75+5 \\ \\\sf \:Add \: 75 \: and \: 5 \: to \: get \: 80. \\ \\ = \boxed{\boxed{ \bf \: 80}}$

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2 years ago