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3 years ago

10

Is -1 2/3 rational or irrational

2 answers:

denis-greek [22]3 years ago

6 0

Answer:

rational because -12 can go into 3

Maurinko [17]3 years ago

4 0

Answer: rational

Step-by-step explanation:

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What is the value of 12C4? <br> A. 3 <br> B. 48 <br> C. 495 <br> D. 11,880

mars1129 [50]

The answer to this is C

8 0

3 years ago

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Given the line below. Write the point-slope form of the given line that passes through the points (0, 3) and (4, 0). Identify (x

jeka57 [31]

$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~{{ 0}} &,&{{ 3}}~) 
% (c,d)
&&(~{{4}} &,&{{ 0}}~)
\end{array}
\\\\\\
% slope = m
slope = {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{0-3}{4-0}\implies -\cfrac{3}{4}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-3=-\cfrac{3}{4}(x-0)$

4 0

3 years ago

Mikaela travels 15 blocks on her skateboard in 5 minutes. At this speed, how many blocks can she travel on her skateboard in 12

Alchen [17]

Answer:

36 blocks.

Step-by-step explanation:

We have been given that Mikaela travels 15 blocks on her skateboard in 5 minutes. We are asked to find the number of blocks that she can travel on her skateboard in 12 minutes.

We will use proportions to solve our given problem.

$\frac{\text{Blocks traveled}}{\text{Time taken}}=\frac{15}{5}$

$\frac{\text{Blocks traveled}}{12}=\frac{15}{5}$

$\frac{\text{Blocks traveled}}{12}\times12=\frac{15}{5}\times12$

$\text{Blocks traveled}=3\times12$

$\text{Blocks traveled}=36$

Therefore, Mikaela will travel 36 blocks on her skateboard in 12 minutes.

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3 years ago

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Rachel was an 85 average after four test. what does she need to earn on the next test if she wants to raise her average to exact

irakobra [83]

she took four tests with one more to take totals 5 tests

88 x 5 = 440

all her tests need to equal at least 440 to get an 88 average

since she has 85 average after 4, 85*4 = 340, so her 4 tests so far have equaled 340

440-340 = 100

she will need to get a 100 on her 5th test to have an 88 average

4 0

3 years ago

A triangle has points R(-2,0) ,S(2,8) and T (8,2) as shown in the group. M is the midpoint of RT . What is the length of SM

wlad13 [49]

The midpoint is calculated by averaging the coordinates of its endpoints:

$M = \left(\dfrac{-2+8}{2},\dfrac{0+2}{2}\right)=(3,1)$

Now we can use the usual distance formula to get the length of SM:

$SM=\sqrt{(2-3)^2+(8-1)^2}=\sqrt{1+49}=\sqrt{50}$

5 0

3 years ago