Please help me on this thank you

Mathematics

2 answers:

irinina [24]4 years ago

5 0

Well you have to show us the line plot

Fofino [41]4 years ago

3 0

Need to see the full question pleaseee

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How do you start this and find the weight of each shape? I do not remember doing this in class.

suter [353]

Let's say make the shapes, some variable name

say

⛁ ⚪ ◽ ▯
a b c d

so.. if take those are the shapes provided

then we can take a look at the first set and we can say that

2a + b + c = 20

a + 4d + b = 19

a + c = 9

3c + d + a = 19

thus $\bf \begin{cases}
2a + b + c = 20\\
a + 4d + b = 19\\
a + c = 9\\
3c + d + a = 19 
\end{cases}\\\\
-----------------------------\\\\
a+c=9\implies \boxed{c}=9-a\qquad thus
\\\\\\
2a+b+\boxed{9-a}=20\implies \underline{b}=11-a\impliedby thus
\\\\\\
a+4d+\underline{11-a}=19\implies d=\cfrac{8}{4}\implies d=2\\\\
-----------------------------\\\\
then\qquad 3\left(\boxed{9-a } \right)+\boxed{2}+a=19\implies 27-3a+2+a=19
\\\\\\
10=2a\implies 5=a$

and surely you can find the other two

4 0

3 years ago

Find the sum of the first 30 terms of the sequence below an=3n+2

Solnce55 [7]

First off, let's find the 1st term's value, and the 30th term's value,

$\bf a1=3(1)+2\implies a1=5\qquad \qquad \quad a30=3(30)+2\implies a30=92\\\\
-------------------------------\\\\
~~~~~~~\textit{ Sum of an arithmetic sequence}\\\\
S_n=\cfrac{n(a1+an)}{2}~ 
\begin{cases}
n=n^{th}\ term\\
a1=\textit{first term's value}\\
----------\\
a1=5\\
a30=92\\
n=30
\end{cases} \implies S_{30}=\cfrac{30(5+92)}{2}
\\\\\\
S_{30}=15(97)$

6 0

3 years ago

Read 2 more answers

Please help, I can't figure this out for the life of me!

Dominik [7]

B≠1
constant a = 25

If b was 1, then it would not be exponential. The f(x) would stay as a, which is the starting number, or number at an x of 0. In the table, this would be 25.

7 0

4 years ago

At a coffee shop, the first 100 customers'

VashaNatasha [74]

Answer:

25%

Step-by-step explanation:

Add all the cold orders

(8+12+5)

Then, you know there are 100 orders

25/100=25%

7 0

3 years ago

|x-5|>6 <br> Please help me thank you

tensa zangetsu [6.8K]

Answer:

x<-1 or x>11

Step-by-step explanation:

Set the equation x-5>6 and solve. You would then get x>11

For the second part, you want to flip the > sign into < and turn the 6 into -6. Solve the equation to get x-5<-6 which is then x<-1

5 0

2 years ago