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Varvara68 [4.7K]
3 years ago
5

Seven times the sum of a number 9 and 2 equals .

Mathematics
2 answers:
zmey [24]3 years ago
8 0
I think it’s 9+2 because it say sum
nasty-shy [4]3 years ago
5 0

Answer:

x = 7 x (9 + 2)

Step-by-step explanation:

Sum of 9 and 2 is ( 9 + 2)

7 times that is 7 x (9 + 2)

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

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Please help me asapppppppppppppppppppppp :)))))))))))))))))))
Reptile [31]

Answer: X is 15. N is 100

6 0
3 years ago
Determine the exact values of all three trigonometric functions of the angle 4.25pi
Margarita [4]

Answer:

Sin (4.25π)= 0.7071

Cos(4.25π)= 0.7071

Tan(4.25π)= 1

Step-by-step explanation:

\pi=180º (half circumference)\\ 2\pi= 360º (complete circumference)\\ 4\pi= 720º (2 complete cincumference\\ 4.25\pi= 720º + 45º (2 complete circumference + 45º)

Sin, Cos and Tan of 45º angle is the same with 1,2 or more circumferences.

So the result is the same for 45º angle.

So:

Sin (45º) = \frac{\sqrt{2} }{2}\\Cos (45º) = \frac{\sqrt{2} }{2}\\ Tan(45º) = 1

3 0
3 years ago
Mrs. Duggin walked every day for seven days. If she walked 9/10 of a mile each day for seven days, how many total miles did she
Molodets [167]

Answer:

Mrs. Duggin walked a total of \frac{63}{10} \ miles..

Step-by-step explanation:

Given:

Number of miles walked on each day = \frac{9}{10} \ mile

Number of days she walked = 7

We need to find the Total miles she walked using repeated addition method.

Solution:

Now we know that Repeated Addition means adding each group together and it is also known as Multiplication.

So we can Find Total miles she walked by adding Number of miles walked on each day with number of day times.

OR

we can Find Total miles she walked by Multiplying Number of miles walked on each day with number of days.

framing in equation form we get;

Total miles she walked = \frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}+\frac{9}{10}= \frac{9+9+9+9+9+9+9}{10} = \frac{63}{10}\ miles

OR

Total miles she walked = \frac{9}{10}\times7= \frac{63}{10} \ miles.

Hence Mrs. Duggin walked a total of \frac{63}{10} \ miles..

4 0
4 years ago
What is the HCF of 66, 121 ,132
gayaneshka [121]
11

66=11×6
121=11×11
132=11×12
5 0
4 years ago
Read 2 more answers
If -a=b and a+c=d then b+c=d
Effectus [21]
This is incorrect

-a = b
a + c = d
b + c = d is incorrect because it says a + c and not -a + c.

If you multiply the first line with -1 then you would get a = -b
So the final line would actually be -b+c=d
3 0
3 years ago
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