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Naddik [55]
3 years ago
7

0.2(-4–2.5b–7c). write the product

Mathematics
1 answer:
Xelga [282]3 years ago
4 0

Answer:

-0.8 - 0.5b - 1.4c

Step-by-step explanation:

Take the b and the c away

Then times the 0.2 by all the numbers but don't add them

Once your done you and the b and c back to you equation

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X^2 is to 441 as x^3 is to
labwork [276]

X=perfect square of 441

= 21

X^3 = 21^3

=9261

8 0
3 years ago
What is the equation for passing through (-2,2) and (5,3)
Reil [10]
\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~{{ -2}} &,&{{ 2}}~) 
%  (c,d)
&&(~{{ 5}} &,&{{ 3}}~)
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{3-2}{5-(-2)}\implies \cfrac{3-2}{5+2}\implies \cfrac{1}{7}

\bf \stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-2=\cfrac{1}{7}[x-(-2)]
\implies 
y-2=\cfrac{1}{7}(x+2)
\\\\\\
y-2=\cfrac{1}{7}x+\cfrac{2}{7}\implies y=\cfrac{1}{7}x+\cfrac{2}{7}+2\implies y=\cfrac{1}{7}x+\cfrac{16}{7}
5 0
4 years ago
If you get 1 dollar every 2 week how many weeks will it take to get 800 dollars
ipn [44]

Step 1 ) Apply numbers into fraction form. Include variables to represent numerator and denominator.

\displaystyle\frac{2w}{1d}

Note: w = week; d = dollars

Step 2 ) Multiply both sides by 800 to change 1d into 800d.

\displaystyle\frac{2w}{1d}

\displaystyle\frac{2w}{1d} * \frac{800}{800}

\displaystyle\frac{1,600w}{800d}

This means that the amount of weeks it'll take to reach 800 dollars is...

<u><em>1,600 weeks.</em></u>

•

•

- Marlon Nunez

3 0
3 years ago
Find the perimeter and the area of the polygon with the given vertices.
Mariulka [41]

Answer:

Step-by-step explanation:

TU , UV , VW, TW are the sides

As points T and U have same x-coordinate, length of TU will be given by the difference of y-coordinate

TU = 9 - 7 = 2 units

As points U and V have same y-coordinate, length of UV will be given by the difference of x-coordinate

UV = 5 - 2 = 3 units

As points V and W have same x-coordinate, length of VW will be given by the difference of y-coordinate

VW = 9 -7 = 2 units

As points W and T have same y-coordinate, length of WT will be given by the difference of x-coordinate

WT = 5 - 2 = 3 units

TU = VW = 2 units

UV = WT = 3 units

So, TUVW is a rectangle

Area = length *width = 3* 2 = 6 square units

Perimeter = 3 + 2 + 3 + 2 = 10 units

8 0
3 years ago
Is there no help at all?
aev [14]

Answer:

Wait what do you mean

Step-by-step explanation:

8 0
4 years ago
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