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ArbitrLikvidat [17]
3 years ago
5

How do you do this??

Mathematics
1 answer:
ruslelena [56]3 years ago
7 0

Answer:

bxc+ax32=0

Step-by-step explanation:

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Q # 13 please help me
Ede4ka [16]

It is false. Since you don't know what is the variable equal to. But multiplication can't be in associative property.

6 0
3 years ago
Read 2 more answers
Why is ac smaller than ad if they both look very close
kakasveta [241]

Let's begin by listing out the information given to us:

We start out by observing that Triangles MKR & ACD are similar or proportional

\begin{gathered} MK=21;AC=\text{?} \\ MR=24;AD=28\frac{4}{5} \\ KR=CD=\text{?} \end{gathered}

We will solve for the missing side by using the similar triangle theorem. This is shown below:~

\begin{gathered} \Delta MKR\approx\Delta ACD \\ \frac{MK}{AC}=\frac{MR}{AD} \\ \frac{21}{AC}=\frac{24}{28\frac{4}{5}} \\ \text{Cross multiply, we have:} \\ 24\cdot AC=28\frac{4}{5}\cdot21 \\ AC=\frac{28\frac{4}{5}\cdot21}{24}=25\frac{1}{5} \\ AC=25\frac{1}{5} \end{gathered}

8 0
1 year ago
What is the length of x? What is the length of EF? Only enter numbers in the answer boxes below:
ioda

Focus on triangles DFC and DFE:

  • They are both right triangles because DF is perpendicular to EC
  • DC=DE
  • DF is a common side

So, the two triangles are congruent. It follows that CF=FE, and in particular

8x=3x+15 \iff 5x=15 \iff x=3

And since x=3, the length of EF is

3x+15=3\cdot 3+15=24

8 0
3 years ago
Emilio cay type 850 words in 17 minutes. How many words can he type in one hour?
Nutka1998 [239]

Answer:

3,000 words

Step-by-step explanation:

we know that

Emilio cay type 850 words in 17 minutes

Remember that

1\ h=60\ min

so

using proportion

Find out how many words can Emilio type in 60 minutes (one hour)

Let

x ---> the number of words

\frac{850}{17}\ \frac{words}{minutes} =\frac{x}{60}\ \frac{words}{minutes}\\\\x=60(850)/17\\\\x= 3,000\ words

3 0
3 years ago
How is the answer 16? Please explain
Viktor [21]
Triangle STU is similar to triangle SVW
so

  TU          ST
------- = ---------- (as you know SV = ST + TV  = 12 + 18 = 30)
  VW       SV
so
  TU          12
------- = ---------- 
  40          30

TU = 12 * 40 / 30
TU = 16

answer
16 inches
7 0
3 years ago
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