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raketka [301]
3 years ago
15

Algebra 1 help please Picture included and will pick a brainliest answer. Thanks in advance

Mathematics
1 answer:
alexdok [17]3 years ago
6 0
I score 64 ,60,70 three tests maintain average of 70 percent what score exam to pass
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Help me and will give brainlessness
Vika [28.1K]

Rounding is simple:

  • If the previous digit is 5-9, round the number to the left of it up a number. If it is 4-0, leave the number to the left of it as it is.

For 82.98, we can round 82 to 83, since 82 is the whole number and the previous digit is 9 (so we round up).

For 169.645, we scratch off 45. Since 6 is in the tenth's place and the previous digit of it is 4, we leave it at 169.64.

:)

8 0
3 years ago
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The height in feet above the water of a diver can be modeled by ℎ() = −16*2 − 16 + 192, where t is the time in seconds after the
Maurinko [17]

h(t) is the height of the diver in feet above the water

Now it asks about the time at which diver reaches the water

When diver reaches the water , the height of diver from water should be zero

So we plug h(t) =0

So

-16t^2 -16 t +192 =0

divide whole equation by -16

t^2 +t -12 =0

we can now factor the quadratic equation

So we get

(t+4)(t-3) =0

plug each factor equal to zero and solve for t

t+4 =0 and t-3 =0

So t=-4 and t=3

Now time cannot be negative , So t=3

So time = 3 seconds

It takes 3 seconds for the diver to reach the water

3 0
4 years ago
The sum of the four angles in a rectangle is always 180 degrees true or false?
dem82 [27]
A rectangle has 4 sides
each side is a right angle
a right angle by definition is 90 degrees
90 + 90 + 90 + 90 = 360\\ or\\ 90 * 4 = 360
False
7 0
3 years ago
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Evaluate the expression \{10 x 7\}+(10 - 6){10×7}+(10−6)left brace, 10, times, 7, right brace, plus, left parenthesis, 10, minus
aliya0001 [1]
What grade is this? I can get the answer of it but I forgot how
3 0
3 years ago
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Enter the amplitude of the function f(x).<br><br> f(x)=−sin(3x)−1
77julia77 [94]
Enter the amplitude of the function f(x). f(x)=-2sin(3x)-1 ​. 2. See answers. Log in to add comment. Answer. Answer. 5.0/5. 5.0/5.
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2 years ago
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