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Alexxx [7]
4 years ago
7

What do they call the international hula hoop championships

Mathematics
1 answer:
Soloha48 [4]4 years ago
7 0
A waste of time. never knew there was such a thing
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M các ma trận vuông cấp hai thỏa mãn
murzikaleks [220]

Step-by-step explanation:

ano taong diyan po pic mo

6 0
3 years ago
a sheep breeding farm counted a total of 40 sheep on their grounds after one year the number of sheep doubled then in the next y
SpyIntel [72]
Answer:
graph (b)

Explanation:
The farm started with 40 sheep and the number doubled each year.
So, the equation modeling this situation would be:
N(x) = 40*(2)^2
By getting the equation, we can notice that we already excluded the third and fourth choices as they have the wrong equations.

Now, we will need to select the right graph which is either graph a or graph b.
To do this, we will get the value of N(x) for different values of x as follows:
At x = 0: N(0) = 40*(2)^0 = 40
At x = 1: N(1) = 40*(2)^1 = 80
At x = 1: N(2) = 40*(2)^2 = 160

Now, taking a look at graph a, we will find that:
N(1) = 120
N(2) = 360
These numbers are not the same as the numbers we calculated, therefore, this graph is wrong

Taking a look at graph b, we will find that:
N(1) = 80
N(2) = 160
These numbers are exactly the same as the ones calculated, therefore, this graph is the correct one.

Hope this helps :)
7 0
4 years ago
Which situation can be represented by the expression 3 + (-7) plus, left parenthesis, minus, 7, right parenthesis.
ioda

Options:

(A) . A football team lost 3 yards on one play. The team gained 7 yards on the next play.

(B ). A football team gained 3 yards on one play. The team lost 7 yards on the next play.

(C). A football team gained 3 yards on one play. The team gained 7 yards on the next play.

Answer:

(B ). A football team gained 3 yards on one play. The team lost 7 yards on the next play.

Step-by-step explanation:

Given

3 + (-7)

Required

Which situation does it represent?

First, we simplify the expression as follows:

3 + (-7)

Remove brackets

3 -7

Express each term with their signs

+3 -7

<u>Analysing each term;</u>

In terms of the list of given options,

+3 means a gain of 3 yards

-7 means a loss of 7 yards

<em>Hence, B. is correct</em>

5 0
3 years ago
I need help plsss anyone!! At least answer one of them!! U get points
igor_vitrenko [27]

what is the question.......

4 0
3 years ago
Select the pair of equations whose graphs are perpendicular.  
viktelen [127]
k:\ y=m_1x+b_1\ \ \ \ and\ \ \ \ l:\ y=m_2x+b_2\\ \\the\ line\k\ is\ perpendicular\ to\ the\ line\ l\ \ \ \Leftrightarrow\ \ \ m_1\cdot m_2=-1\\----------------------------\\\\A.\\2y=-3x+5\ \ \Rightarrow\ \ \ y=-  \frac{3}{2}  x+2.5\ \ \Rightarrow\ \ m_1=- \frac{3}{2} \\\\2x+3y=4\ \ \Rightarrow\ \ 3y=-2x+4\ \ \Rightarrow\ \ y=- \frac{2}{3}x+1 \frac{1}{3}  \ \ \Rightarrow\ \ m_2=- \frac{2}{3} \\\\m_1\cdot m_2=- \frac{3}{2} \cdot (- \frac{2}{3})=1 \neq -1

B.\\5x-8y=9\ \ \Rightarrow\ \ -8y=-5x+9\ \ \Rightarrow\ \ \ y=  \frac{5}{8}  x-1 \frac{1}{8} \ \Rightarrow\ \ m_1= \frac{5}{8} \\\\12x-5y=7\ \Rightarrow\ \ -5y=-12x+7\ \ \Rightarrow\ \ y= \frac{12}{5}x-1 \frac{2}{5}  \ \ \Rightarrow\ \ m_2= \frac{12}{5} \\\\m_1\cdot m_2= \frac{5}{8} \cdot  \frac{12}{5}= \frac{3}{2}  \neq -1

C.\\y=2x-7\ \ \Rightarrow\ \ m_1=2 \\\\x+2y=3\ \Rightarrow\ \ 2y=-x+3\ \ \Rightarrow\ \ y= -\frac{1}{2}x+1 \frac{1}{2}\ \ \Rightarrow\ \ m_2=- \frac{1}{2} \\\\m_1\cdot m_2= 2 \cdot (- \frac{1}{2})= -1\ \ \Rightarrow\ \ y=2x-7\ \ \ \ \perp\ \ \ \ x+2y=3

&#10;D.\\x+6y=8\ \ \Rightarrow\ \ 6y=-x+8\ \ \Rightarrow\ \ \ y=- \frac{1}{6} x+1 \frac{1}{3}\ \ \Rightarrow\ \ m_1= -\frac{1}{6} \\\\y=2x-8\ \Rightarrow\ \ m_2= 2 \\\\m_1\cdot m_2= -\frac{1}{6} \cdot2=- \frac{1}{3} \neq -1
7 0
3 years ago
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