Hello :) <br> Please help me solve this <br><br> Explain answer

Which shapes have equal area? help plz thx

morpeh [17]

A,B,C,and F. If you can see A you can split then into fours, b,c,and f can all be split into half.

6 0

3 years ago

1-Suppose the path of a baseball follows the path graphed by the quadratic function ƒ(d) = –0.6d2 + 5.4d + 0.8 where d is the ho

jasenka [17]

Answer:

1. The correct option B.

2.The correct option A.

Step-by-step explanation:

The given function is

$f(d)=-0.6d^2+5.4d+0.8$

Where f(d) is the height of the ball at horizontal distance d.

Put f(d)=0, to find the distance where the ball touch the ground.

$0=-0.6d^2+5.4d+0.8$

Quadratic formula:

$d=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Using the quadratic formula we get

$d=\frac{-5.4\pm \sqrt{(5.4)^2-4(-0.6)(0.8)}}{2(-0.6)}$

$d=-0.146,9.146$

Therefore the ball is in air between d=-0.146 to d=9.146.

The distance can not be negative, therefore the ball remains in the air between d=0 to d=9.146.

$9.146\approx 9.15$

Therefore the correct option is B.

2.

The given equation is

$y=(x-1)^2+1$ .... (1)

The standard form of parabola is

$y=a(x-h)^2+h$ .... (2)

Where, a is constant and (h,k) is vertex.

On comparing (1) and (2), we get

$a=1$

$h=1$

$k=1$

Since the value of a is positive, therefore it is an upward parabola. The vertex of the parabola is (1,1).

Put x=0 in the given equation.

$y=(0-1)^2+1$

$y=1+1=2$

Therefore the y-intercept is (0,2) and option A is correct.

8 0

3 years ago

Please help me! I would appreciate it! :)

Helga [31]

Answer:

v= -2

Step-by-step explanation:

10+2v=−6(3v+5)

Step 1: Simplify both sides of the equation.

10+2v=−6(3v+5)10+2v=(−6)(3v)+(−6)(5)(Distribute)10+2v=−18v+−302v+10=−18v−30Step 2:

Add 18v to both sides.

2v+10+18v=−18v−30+18v20v+10=−30

Step 3:

Subtract 10 from both sides

.20v+10−10=−30−1020v=−40

Step 4:

Divide both sides by 20.20v20=−4020v=−2

Answer:v=−2

4 0

2 years ago

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Here

Ray Of Light [21]

Answer:

-42

Step-by-step explanation:

B)

2x - 3 = -6

-6 × 7 = (-42)

7 0

3 years ago

Given A = {1, 3, 5}, B = {2, 4, 6} and C={1, 2, 3, 4, 5, 6}, then A ∪ (B ∩ C)

Serggg [28]

B ∩ C is an intersection, which means only values that are present in both B and C are picked. So...
B ∩ C = {2, 4, 6}
A ∪ (B ∩ C) is a union, which means you combine all values, but discard duplicates. So...
A ∪ (B ∩ C) = {1, 2, 3, 4, 5, 6}

8 0

3 years ago

Read 2 more answers

Hello :) Please help me solve this Explain answer