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2 years ago

5.5 + 2.1x + 3.8x – 4.1

Mathematics

2 answers:

lozanna [386]2 years ago

4 0

Answer:

5.9x + 1.4

Step-by-step explanation:

5.5 + 2.1x + 3.8x - 4.1

= 5.9x + 1.4

masya89 [10]2 years ago

3 0

Answer:

1.4 + 5.9x

Step-by-step explanation:

You add like terms. Since 2.1x and 3.8x are like-terms, due to the variable x, you combine them. 5.5 and -4.1 are also like-terms because they both have no variable.

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The pair of square pyramids are similar. Use the given information to find the scale factor of the smaller square pyramid to the

Mrrafil [7]

$\bf \qquad \qquad \textit{ratio relations}
\\\\
\begin{array}{ccccllll}
&\stackrel{ratio~of~the}{Sides}&\stackrel{ratio~of~the}{Areas}&\stackrel{ratio~of~the}{Volumes}\\
&-----&-----&-----\\
\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}
\end{array}\\\\
-----------------------------$

$\bf \cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s}{s}=\cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\\\\
-------------------------------\\\\
\stackrel{\stackrel{pyramids}{scale~factor}}{\cfrac{small}{large}}\qquad \qquad \cfrac{s}{s}=\cfrac{\sqrt[3]{64}}{\sqrt[3]{343}}\implies \cfrac{s}{s}=\cfrac{4}{7}\implies 4:7$

8 0

3 years ago

Can someone help me out

stich3 [128]

Answer:

m= -5/8

Step-by-step explanation:

Slope of a line containing the points,

$\frac{y2 - y1}{x2 - x1} = m$

where, m is the slope

Here,

$m = \frac{7 - 2}{4 - 12} = \frac{ 5}{ - 8} = \frac{ - 5}{8}$

4 0

3 years ago

Read 2 more answers

In Exercise,find the balance in the account after 10 years.

Vesnalui [34]

Answer: $ 3462.03

Step-by-step explanation:

The exponential equation for growth (compounded continuously) is given by :-

$A=Pe^{rt}$

, where P= Present value

r= growth rate ( in decimal)

t= time

As per given , we have

P=$1900, r = 6% =0.06 and t= 10

Substitute all the values in the above equation , we get

$A=1900e^{0.06(10)}$

$A=1900e^{0.6}$

$A=1900(1.8221188)=3462.02572\approx3462.03$ [To the nearest cent]

Hence, the balance in the account after 10 years = $ 3462.03

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3 years ago

Lia, Phil and cam collect a total of $200.30 for a holiday fundraiser. Phil collects $12.80 more than Lia. Cam collects three ti

Julli [10]

Lia=L
Phil=12.80+L
Cam=3L

L+12.80+L+3L=200.30
5L+12.80=200.30
5L=200.30-12.80
5L=187.5
L=187.5/5
Plug into the equations at the top
L=Lia=$37.5
Phil=12.80+37.5=$50.30
Cam=3(37.5)=$112.50

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3 years ago

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11) Solve the equation<br> 6y+11=23<br><br> 12) Expand<br> 5(x-11)

Yakvenalex [24]

6y+11=23
-11 -11
6y=12
/6 /6
y=2

5x-55

7 0

3 years ago

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