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Lorico [155]
3 years ago
12

What's 100 + 400 - 15 x 3 Add a strategy.

Mathematics
2 answers:
irina1246 [14]3 years ago
8 0
The answer is 456 but sorry,i don’t know what a strategy is!
Aneli [31]3 years ago
8 0
FIrst, do multiplication.
15 x 3.=45
Then add ((1 + 4) x 100) - 45
500 - 45 = 455
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ikadub [295]

Answer:

Step-by-step explanation:

Given that a curve in polar coordinates is given by:

r=9+3cosθ

a) At point P, we have

θ=\frac{21\pi}{18}

Substitute to get

r=9+cos \frac{21\pi}{18}\\=9.3932

b) Cartesian coordinate is

x= rcos \theta=3.6934\\y =r sin \tjeta =8.6365

c) At the origin r =0

when r =0

we have

9+3cos\theta=0\\cos\theta =-3

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3 years ago
PLZ HURRY IT'S URGENT!!
Y_Kistochka [10]

Answer:

n + 6 = 7n

Step-by-step explanation:

"The sum of a number and six" would mean the number plus 6: n+6 and "is seven times the number" indicates that it would be equal to the product of 7 for n: 7n. According to this, the answer is that the translation of the sentence into an equation is: n+6=7n.

n − 6 = 7n is not right because the statement says the sum of a number and six.

7(n + 6) = n is not right because the statement indicates that seven multiplies n on the right side as it says seven times the number.

n = 7n + 6 is not right because the statement says the sum of a number and six which would be on the left side and that this would be equal to seven for n.

8 0
4 years ago
Can someone please help me?
Fittoniya [83]

Answer:

x²+4x+5

Step-by-step explanation:

i provided a picture explanation.

3 0
3 years ago
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mrs long drive from nashville tennessee to atlanta georgia at an average rate of 50 miles per hour. The following equation can b
Scrat [10]

50t = 250 \\ t =  \dfrac{250}{50}  \\ t = 5

Answer is C. 5

Hope this helps. - M
5 0
3 years ago
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velikii [3]

Answer:

  1. y= 7
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  3. y= -4
  4. y= -8

Step-by-step explanation:

y= -5x+1

=-5.-1+1

=7

Now you can do this method

3 0
3 years ago
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