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maxonik [38]
3 years ago
7

Lucy does the following problem incorrectly. Explain the error and redo the problem showing the correct answer. Lucy’s answer -1

.25-(0.25)= -1
Mathematics
1 answer:
Aneli [31]3 years ago
5 0

Answer:

-1.5

Step-by-step explanation:

-1.25 - (0.25)

1. Put the negative sign (-) in the parentheses

-1.25 - 0.25

2. Subtract the two numbers

-1.25 - 0.25 = -1.5

Lucy subtracted the two numbers instead of seeing that the 0.25 has to be negative as well.

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What is the area of shaded section of the circle?​
bazaltina [42]

Answer:

≈ 565.5 units²

Step-by-step explanation:

The area (A) of the shaded sector = area of circle × fraction of circle

A = πr² × \frac{162}{360} ← r is the radius

   = π × 20² × \frac{162}{360}

   = 400π × 0.45 ≈ 565.5 units²

4 0
3 years ago
Which point is on the line 4y-2x=0?
hoa [83]
To figure this out, we just need to plug in the points.

4(-1) - 2(-2) = 0
-4 - (-4) = 0
-4 + 4 = 0
0 = 0 
True

The correct answer is a. (-2, -1).
5 0
3 years ago
Paco deconstructs this isosceles trapezoid to find the area.
Lina20 [59]
It would be the second one!!!
6 0
3 years ago
Read 2 more answers
Write an equation in standard form of the parabola that has the same shape as the graph of f(x)=5x^2or g(x)=-5x^2, but with a gi
pickupchik [31]
F(x)=5x^2 Has minimum (0,0)

g(x) = f(x) + 2 Shifts the graph two units up, then the minimum is 2+0=2.

h(x) = g(x+4) Shifts the graph four units left,  then the minimum is at 0-4 = -4.

Then h(x) = 5(x+4)^2 + 2 has the minimum (-4,2)

And p(x) = -5(x+4)^2 + 2 has the maximum (-4,2)
 
4 0
3 years ago
Please help me thank you. 16 points and show all work.
Solnce55 [7]

magnitude = sqrt(6^2+4^2)

= sqrt ( 36+16)

=sqrt (52) = 7.2


angle = tan^-1(6/4) = 56 degrees


5 0
3 years ago
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