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2 years ago

Madison has 142 stickers in her collection.what is 142 rounded to the nearest ten

Mathematics

2 answers:

Yuki888 [10]2 years ago

8 0

140

Step-by-step explanation:

Fiesta28 [93]2 years ago

8 0

Answer:

140

Step-by-step explanation:

when rounding to the tenths when the last number is 5 or above you round up if its 4 or below you round down for example if the number was 145 you would answer 150.

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Which expression can be used to find 57% of 230? ⊥ω⊥

ella [17]

Answer:

131.10 (Answer C)

Step-by-step explanation:

Convert 57% to 0.57 and then multiply 230 by 0.57:

0.57(230) = 131.10

This is Answer C

4 0

2 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B%28-81%29x%5E%7B2%7D%20%7D" id="TexFormula1" title="\sqrt{(-81)x^{2} }" alt="\sqrt{(

SSSSS [86.1K]

Answer:

We conclude that:

$\sqrt{\left(-81\right)x^2}=9ix$

Step-by-step explanation:

Given the radical expression

$\sqrt{\left(-81\right)x^2}$

simplifying the expression

$\sqrt{\left(-81\right)x^2}$

Remove parentheses: (-a) = -a

$\sqrt{\left(-81\right)x^2}=\sqrt{-81x^2}$

Apply radical rule: $\sqrt{-a}=\sqrt{-1}\sqrt{a},\:\quad \mathrm{\:assuming\:}a\ge 0$

$=\sqrt{-1}\sqrt{81x^2}$

Apply imaginary number rule: $\sqrt{-1}=i$

$=i\sqrt{81x^2}$

Apply radical rule: $\sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b},\:\quad \mathrm{\:assuming\:}a\ge 0,\:b\ge 0$

$=\sqrt{81}i\sqrt{x^2}$

$=9i\sqrt{x^2}$

Apply radical rule: $\sqrt[n]{a^n}=a,\:\quad \mathrm{\:assuming\:}a\ge 0$

$=9ix$

Therefore, we conclude that:

$\sqrt{\left(-81\right)x^2}=9ix$

7 0

2 years ago

1+1 need help too du(mb

makkiz [27]

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3 years ago

Help! Please!

fomenos

Answer:

is the board game to BOARD for Neal so you have 1.54

Step-by-step explanation:

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2 years ago

A model of a famous statue is 1 1/2 inches tall. The actual statues is 3 3/4 feet tall. What is the ratio of the height of the m

Fittoniya [83]

2.5 because 1.5 x 2.5 = 3.75

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3 years ago