Answer: Sin R= 10.1
Cos R= 31.6
Tan R= 9.6
Sin T= 22.9
Cos T=37.7
Tan T= 10.9
Step-by-step explanation:
Third side is 39^2
Answer:
Lin has 11 acorns ⇒ answer D
He subtract 4 from 7 instead of add 4 to 7
Step-by-step explanation:
- Lin has 4 pinecones and some acorns
- She has 7 fewer pinecones than acorns
- The meaning of 7 fewer pinecones than acorns is the number of the
pinecones is less than the number of acorns by 7
∵ She has 4 pinecones
∵ She has 7 fewer pinecones than acorns
- The number of pine cones is less than the number of acorns by 7
∴ 4 = number of acorns - 7
- Add 7 to both sides
∴ 11 = number of acorns
*<em> Lin has 11 acorns</em>
- Tom choose answer A which is 3
- He made a mistake in the equation
- He put ⇒ number of the acorns = 7 - 4 not 7 + 4
∴ number of acorns = 3
* <em>He subtract 4 from 7 instead of add 4 to 7</em>
Answer:
A) Yes
B) No
C) No
D) No
Step-by-step explanation:
A) Yes, every telephone number that could occur in that community will have an equal chance of being generated because the telephone numbers were generated randomly.
B) No, this method of generating telephone numbers would not result in a simple random sample (SRS) of local residences because the first three digits were generated in a different random way than the last four digits.
C) No, this method would not generate an SRS of local voters because not everybody will be pick up when they call because they may not be at home or they may be too busy to pick up.
D) No, this method is not unbiased in generating samples of households because there will be nonresponse bias since not everyone will pick up the call
Answer:
7 swings
Step-by-step explanation:
17/23 = 17/161(x)
x = (17/23)*(161/17)
x = 7
Angle values in fraction form
- A = 220/3
- B = 100/3
- C = 200/3
Angle values in decimal form
- A = 73.333
- B = 33.333
- C = 73.333
For each decimal value, the '3's go on forever.
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Work Shown:
Check out the diagram below. Since AD bisects angle BAC, this means the two smaller pieces (angle DAB and angle DAC) are equal to one another. Let's call those smaller pieces x for now. They combine to 2x which is the measure of angle BAC.
Angle BCA is 2x since this is the other base angle, and the two base angles are congruent.
Let y be the measure of angle ADC. It's supplementary to the 110 degree angle.
y+110 = 180
y = 180-110
y = 70
Now focus on triangle ACD. All three angles of a triangle add to 180
A+D+C = 180
x+y+2x = 180
3x+y = 180
3x+70 = 180
3x = 180-70
3x = 110
x = 110/3
This means each base angle is
2x = 2*(110/3) = 220/3
So we know that A = 220/3 and C = 220/3 are the two base angles of triangle ABC.
The last step is to find the vertex angle B
A+B+C = 180
220/3 + B + 220/3 = 180
B+440/3 = 180
B = 180 - 440/3
B = 180*(3/3) - 440/3
B = 540/3 - 440/3
B = 100/3
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So in summary we have
- A = 220/3
- B = 100/3
- C = 220/3
as the three angles for triangle ABC. Those are the exact fractional values.
The approximate decimal values are
- A = 73.333
- B = 33.333
- C = 73.333