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3 years ago

14.

Mathematics

2 answers:

Sholpan [36]3 years ago

7 0

I don’t know lol coz i can’t be bothered lol also do you guys know kpop bts lol sorry for wasting your time lol

OverLord2011 [107]3 years ago

3 0

god is key to everything

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What is each expression written using each base only once? (-4)^-6*(-4)^7

andreyandreev [35.5K]

(-4)^-6*(-4)^7 = (-4)^1 = -4

answer a. -4

6 0

3 years ago

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Question 3: i’ll mark u brainliest

Alexeev081 [22]

Answer:

Step-by-step explanation:

56cm-48cm=8cm

18cm+8cm=26cm

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2 years ago

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If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8,6)

vova2212 [387]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
X&({{ a}}\quad ,&{{ b}})\quad 
% (c,d)
Y&({{ -8}}\quad ,&{{ 6}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

$\bf \left( \cfrac{-8+a}{2}~,~\cfrac{6+b}{2} \right)=\stackrel{M}{(-3,-1)}\implies 
\begin{cases}
\cfrac{-8+a}{2}=-3\\\\
-8+a=-6\\
\boxed{a=2}\\
----------\\
\cfrac{6+b}{2}=-1\\\\
6+b=-2\\
\boxed{b=-8}
\end{cases}$

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3 years ago

You estimate that a box contains 141 envelopes the actual number of envelopes is 150 find the percent error

S_A_V [24]

0.0094% error

Divide 150/141. You get 0.94, then you need to find the percentage of that by clicking the percent button of your calculator

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3 years ago

Picture attached for question<br>

Tema [17]

<h3><u>Explanation</u></h3>

Properties of Exponent

${a}^{ \frac{m}{n} } = \sqrt[n]{ {a}^{m} }$

Convert the expressions from radical to exponent form.

$9 \sqrt[4]{ {t}^{3} } \times 7 \sqrt[3]{ {t}^{2} } \\ 9( {t}^{ \frac{3}{4} } ) \times 7( {t}^{ \frac{2}{3} } )$

Simplify the expression by multiplying.

$63( {t}^{ \frac{3}{4} } \times {t}^{ \frac{2}{3} } ) = 63( {t}^{ \frac{3}{4}+\frac{2}{3} } ) \\ 63( {t}^{ \frac{9}{12} + \frac{8}{12} } ) \\ 63( {t}^{ \frac{17}{12} } )Answer[tex] \large \boxed {63 {t}^{ \frac{17}{12} } }$

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3 years ago