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3 years ago

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Mathematics

1 answer:

Pachacha [2.7K]3 years ago

7 0

Answer:

this is too old

Step-by-step explanation:

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The directions on a seed packet say to plant the seeds 178 inches apart. What is the decimal equivalent of this mixed number?

Flauer [41]

Answer:

1.875 inches apart

Step-by-step explanation:

I think you meant "1 7/8 inches."

Convert 7/8 to a decimal fraction. Divide 7 by 8 on a calculator; you will get 0.875. Then: 1 7/8 inches = 1.875 inches.

Plant the seeds 1.875 inches apart.

6 0

3 years ago

Algebra help needed

lesantik [10]

Answer:

The ball will reach the ground when h=0.

Set the equation equal to 0.

$0=-8(2 t-4)(t+1)$

$t=-1,2$

Step-by-step explanation:

The height of a golf ball after it has been hit from the top of a hill can be modeled by the equation

$h=-8(2 t-4)(t+1)$ ,

where h is the height in feet and t is time in seconds.

When ball will reach the ground the distance between ball and ground is 0. So, the ball will reach the ground when h=0.

To find the time it takes for the ball to reach the ground, set the equation equal to 0 and use the Zero Product Property to solve for $t$.

$h=-8(2 t-4)(t+1)$

$\Rightarrow 0=-8(2 t-4)(t+1)$

Solve the equation using the Zero Product Property.

$2t-4=0\Rightarrow t=\dfrac{4}{2}=2$

$t+1=0\Rightarrow t=-1$

So, $t=-1,2$

7 0

3 years ago

Maliyah likes to collect vinyl records of her favorite bands. She currently has a collection of 42 records. Every month she adds

ycow [4]

Answer:

i believe 25% im not sure but i need help on this too

Step-by-step explanation:

7 0

2 years ago

Given the equation f(x) = (x + 3)2 – 8, fill in the blanks: Axis of symmetry: x = _______a0 Vertex: ( _______a1, _______a2) Numb

frutty [35]

We have been given an equation $f(x)=(x+3)^2-8$ . We are asked to fill in the blanks using our given equation.

The axis of symmetry will be the vertical line passing through vertex.

First of all, we will convert our given equation in standard vertex form of parabola as:

Standard vertex form of parabola: $y=(x-h)^2+k$ , where (h,k) is vertex of parabola.

$f(x)=(x-(-3))^2-8$

Upon comparing our function with standard vertex form, we can see that vertex of parabola is at $(-3,-8)$ .

The axis of symmetry will be vertical line passing through point $(-3,-8)$ . The vertical line will pass through $x=-3$ , therefore, the axis of symmetry is $x=-3$ .

Since our given parabola is an upward opening parabola, so it has a minimum at $(-3,-8)$ . This means that parabola will intersect the x-axis at two points. Therefore, there are two real solutions for the given function.

8 0

3 years ago

Find the missing measurement. Round your answer to the nearest tenth. *

wariber [46]

Answer:

For the first image, the answer should be C) 11 ft.

For the second image, the answer should be C) 6 mi.

For the third image, the answer should be C) 6.9 m^2

Step-by-step explanation:

First image explaination: To get the area of a rectangle you would multiply length times width. 7 times 11 is the area given: 77- so the answer should be 11 ft.

Second image explaination: Divide 11.4 by 1.9.

Third image explaination: Divide 41.4 by 6.

5 0

2 years ago