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solmaris [256]
3 years ago
15

I cant afford to get another wrong one bro

Mathematics
1 answer:
vredina [299]3 years ago
8 0

Answer:

3 & 6

Step-by-step explanation:

right angles will form perpendicular sides, and shapes 3 and 6 are the only ones with right angles

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Solve the System of Equations below using Substitution or Elimination
11Alexandr11 [23.1K]

Answer:

(0,0) or Infinitely many solutions.

Step-by-step explanation:

-−4x−4y=0

−4x−4y+4y=0+4y(Add 4y to both sides)

−4x=4y

−4x/-4= 4y/-4

(Divide both sides by -4)

x=−y

4x+4y=0

4(−y)+4y=0

0=0

7 0
3 years ago
The unit rate is .4 right
LiRa [457]

Answer:

Uh yes and no, im not sure

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Riley and Erik have earned a total of 135 tokens to buy items in the school store. The ratio of the number of tokens that Riley
lisabon 2012 [21]

Answer:

<em>Riley has 72 tokens</em>

Step-by-step explanation:

<u>System of Equations </u>

We have two conditions for the tokens Riley and Erik have earned. Let's call x and y to the number of tokens of Riley and Erik respectively. The first condition states that

x+y=135

Solving for y

y=135-x

The second condition is that the ratio of the number of tokens that Riley had to the number of tokens that Erik has is 8 to 7. It's written as

\displaystyle \frac{x}{y}=\frac{8}{7}

Or equivalently

7x=8y

Replacing y from the first equation

7x=8(135-x)

Operating

7x=1080-8x

Simplifying

15x=1080

\boxed{x=72}

Riley has 72 tokens

3 0
3 years ago
An article reported that for a sample of 55 kitchens with gas cooking appliances monitored during a one-week period, the sample
Sati [7]

Answer:

Step-by-step explanation:

Given that

sample size n = 55:  x bar = 654.16 and s = sample sd = 162.34

Std error = 162.34/sqrt 55 = 21.889

For 95% CI we can use t critical value as population std dev is not known.

df = 54

t critical = 2.004

Margin of error = 2.004 *21.889 = 43.866

Confidence interval lower bound = 654.16-43.866 =610.294

Upper bound = 654.16+43.866=698.026

Confidence interval rounded off at 95% = (610.29, 698.23)

8 0
3 years ago
Youareinthemiddleofalargefield.Youwalkinastraight line for 100 m, then turn left and walk 100 m more in a straight line before s
uranmaximum [27]

Answer

That doesnt make a complete triangle.

Step-by-step explanation:

The hypotenuse cannot be the same length as the other two sides of the triangle.

8 0
3 years ago
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