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3 years ago

You are riding your bike and notice the square sign above. You mentally draw a straight line from point A to C.

Mathematics

1 answer:

svlad2 [7]3 years ago

8 0

1. The angles DCA and BCA are the same.

2. Angles DCA and BCA are not supplementary. Since the both of them add up to 90° (we know that angle c is equal to 90° because in a right square all angles are 90°) the angles would be complementary, not supplementary. Supplementary angles add up to 180°

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Ben walks 2 m from his desk to the teacher's desk. From the teacher's desk, he then walks 3 m in the same direction to the class

elena55 [62]

2m + 3m=5m

2m+(-3)m

2m - 3m = 1m

So the answer was 1m

7 0

3 years ago

Read 2 more answers

(8v3-80v2+6)\(v-10)

Leto [7]

$\frac{(8v^3-80v^2+6)}{v-10}$

Use long division for dividing

$(8v^3-80v^2+6)$ Here 'v' term is missing so we use 0vW

Divide $(8v^3-80v^2+0v+6)$ by v-10 using long division

Step 1: Put 8v^2 at the top

step 2: multiply 8v^2 with v-10 and put it at the bottom

step 3: subtract it

We will get remainder 6

so quotient is $8v^2$

Remainder is 6

8 0

3 years ago

The value of a motorbike depreciates by 32% per year. Work out the current value of a motorbike bought 5 years ago for £3600

DaniilM [7]

$\bf \qquad \textit{Amount for Exponential Decay}
\\\\
A=P(1 - r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{initial amount}\to &3600\\
r=rate\to 32\%\to \frac{32}{100}\to &0.32\\
t=\textit{elapsed time}\to &5\\
\end{cases}
\\\\\\
A=3600(1-0.32)^5\implies A=3600(0.68)^5\implies A\approx 523.41601$

3 0

3 years ago

Lulu wants to get fit. She started with 50 laps a day and she intends to add 10 laps every week. Write a mathematical expression

vlabodo [156]

Answer: 10x + 50

Step-by-step explanation:

lets say that x is equal to the amount of weeks that she runs. She starts off the first week with 50

Then, since she is adding 10 every week, you would do 10x, or 10 times the amount of weeks that she runs.

Since you originally started with 50, you have to add the 50 to the 10x.

So you get...

For example

on week 2, if you plug in 2 to x you get

10(2) +50

20 + 50

70 laps after the second week

7 0

2 years ago

Which expression is a factor of 12x2 + 29x – 8?

Contact [7]

Answer:

3x + 8, hope this helps.

4 0

3 years ago