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Ilia_Sergeevich [38]
3 years ago
15

This spring it rained a total of 11.5 inches. This was 3 inches less than last spring. Write and solve an equation to find the a

mount of rain last season.
Mathematics
1 answer:
inna [77]3 years ago
5 0

Answer:

11.5-3= 8.5

Step-by-step explanation:

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Statements apply to the expression 8^3 ?check all that apply
hram777 [196]

Answer: So, 8%3 = 2

Step-by-step explanation:

6 0
3 years ago
b) y= 5/x What happens to the value of y if the value of x triples? Select your answer. A. x2 B. x3 C. /2 D. /3
jeyben [28]

Answer:

D.)

Step-by-step explanation:

y = 5/x

so when the value of x triples, the new X becomes;

X = 3x

So,

Y = 5/ X

=> Y = 5/3x

=> Y = 1/3 . 5/x

=> Y = 1/3 . y

so the new value of y ( Y ) is 1/3 times original y.

Hence, D. is the answer

3 0
3 years ago
Drag the point on the coordinate plane to the solution of the system of equations shown below: y=-2x-1 y = x + 2​
Sveta_85 [38]

Answer:

(1,-1)

Step-by-step explanation:

-2x-1 = x+2

-3x = 3

x = -1

substitute

y = (-1) + 2

y = 1

point: (1,-1)

3 0
3 years ago
Geometry help! Please prove the following is a square with full explanation, I'm really lost.
Hoochie [10]

We have to show that this is a square, meaning all the sides are perpendicular and the same distance.  

A(3,4), B(2,-2), C(-4,-1), D(-3,5)

For each side we calculate the squared distance and the slope.  We don't have to bother to take the square root.  We'll subtract the points first because that difference, called the direction vector, goes into both the calculation of the slope and of the distance.

AB=B-A=(2 - 3, -2 - 4) = (-1, -6).   slope=-6/-1=6  AB²=(-1)²+(-6)²=37

BC=C-B=(-6, 1).  slope=1/-6=-1/6.   BC²=(-6)²+1²

CD=D-C=(1, 6).   slope=6/1=6    CD²=1²+6²=37

DA=A-D=(6,-1)   slope=-1/6     DA²=37

We see the negative reciprocal slopes, alternating between 6 and -1/6, indicating perpendicular sides.  We see they all have squared distance 37.  Equal perpendicular sides proves its a square.

If we do these problems enough we learn:  There's no point taking the square root.  In fact, there's really no point computing the slopes and the squared distances; we can see it's a square from the pattern of the direction vectors of the sides:  (-1, -6) (-6, 1) (1, 6) (6,-1)

5 0
3 years ago
When a grizzly bear hibernate it’s heart rate drops to 10 beats per minute which 20% of its normal value
sweet [91]

Answer:

true

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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