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notka56 [123]
3 years ago
14

Anyone know this answer?

Mathematics
1 answer:
Oduvanchick [21]3 years ago
8 0

Answer:just count all the blocks around the lines

Step-by-step explanation:

your welcome

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I’m having trouble with this question.
frez [133]

Well, Maria have 13h to go to Orlando, and needs to travel 602 miles. If the train can go to more than 46.3 miles/h (602/13). It could be possible for Maria make it on time.

7 0
3 years ago
For exercises 11-14., can you make each conclusion from the information in the diagram? Explain
Marrrta [24]

Answer:

True: 12, 13

False 11, 14

Step-by-step explanation:

Two lines intersect and form two pairs of vertical angles:

  • angles 2 and 4 are vertical;
  • angles 3 and the sum of angles 1 and 5 are vertical.

Vertical angles are always congruent, so

\angle 2\cong \angle 4 (12 statement is true)

\angle 3\cong \angle 1+\angle 5 (13 statement is true)

Angles 3 and 4 are supplementary angles (add up to 180°), but these angles can have different degree measures, so statement 11 is false.

Statement 14 is false too, because angle 3 can have the degree measure which differs form 90°.

4 0
4 years ago
A person recently read that 84% of cat owners are women. How large a sample should the researcher take if she wishes to be 90% c
Lana71 [14]

Answer:

405

Step-by-step explanation:

To find sample size, use the following equation, where n = sample size, za/2 = the critical value, p = probability of success, q = probability of failure, and E = margin of error.

n=\frac{(z_{\frac{\alpha }{2} })^{2} *p*q  }{E^2}

The values that are given are p = 0.84 and E = 0.03.

You can solve for the critical value which is equal to the z-score of  (1 - confidence level)/2.  Use the calculator function of invNorm to find the z-score.  The value will given with a negative sign, but you can ignore that.

(1 - 0.9) = 0.1/2 = 0.05

invNorm(0.05, 0, 1) = 1.645

You can also solve for q which is 1 - p.  For this problem q = 1 - 0.84 = 0.16

Plug the values into the equation and solve for n.

n =\frac{(1.645)^2*0.84*0.16}{(0.03)^2}\\n= 404.0997333

Round up to the next number, giving you 405.

6 0
3 years ago
: find the area of a triangle with side lengths $\frac43$, 2, and $\frac83$.
mojhsa [17]
Are for triangle fomula is lengthxwidth and what ever u get is divided by two.
6 0
3 years ago
Which sentence about measuring angles is true?
Alexandra [31]

Answer:

c an angle that turns through 10/360 of a circle has a measure of 36 degrees.

Step-by-step explanation:

4 0
3 years ago
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