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3 years ago

8

Slugger Sam hits a ball from home plate. He smacks the ball at 4 feet off the ground at an initial upwards velocity of 32 ft/sec

. How many seconds until the ball reaches maximum height and what and what will that height be?

1 answer:

antoniya [11.8K]3 years ago

6 0

Answer:

<h2><u>128</u></h2>

Step-by-step explanation:

128 your answer all you gotta do is multiply 32 times 4.

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What is the equation, in standard form, of a circle with center (−5, −9) and radius 7?

dimulka [17.4K]

Answer:

Solution given:

Centre(h,k)=(-5,-9)

radius (r)=7

we have

Equation of a circle is;

(x-h)²+(y-k)²=r²

Substituting value;

(x+5)²+(y+9)²=7²

<u>(x+5)²+(y-9)²=49 is a required equation of a circle</u>.

7 0

3 years ago

If A is a 5 by 7 matrix, what is the maximum rank that A can have?

amm1812

Answer:

5

Step-by-step explanation:

Remember, the rank of a matrix is the number of pivots or number of rows different of zero in the echelon form of the matrix.

Then, if A is a matrix $5\times 7$ the maximum number of pivots that can have is one by row, that is, 5.

Then the maximum rank that A can have is 5.

3 0

3 years ago

On a coordinate plane, a line goes through (0, negative 3) and (3, negative 2). A point is at (negative 4, 2).

bulgar [2K]

Answer:

Correct option: first one -> y = (1/3)x + (10/3)

Step-by-step explanation:

The linear function that represents a line is:

y = ax + b

Where a is the slope and b is the y-intercept.

First we need to find the slope of the line that goes through (0, -3) and (3, -2).

Using both points, we can find the equation of the line:

x = 0 -> y = -3

-3 = a*0 + b

b = -3

x = 3 -> y = -2

-2 = 3a - 3

3a = 1

a = 1/3

The parallel line needs to have the same slope as the line, so we can model the parallel line with the following equation:

y = (1/3)x + b

The parallel line goes through the point (-4, 2), so we have:

x = -4 -> y = 2

2 = (1/3)*(-4) + b

b = 2 + (4/3)

b = 10/3

So the equation of the parallel line is:

y = (1/3)x + (10/3)

Correct option: first one

5 0

3 years ago

If kootie weighs 500 and gains 98 pounds in 2 days how much does he weigh

bezimeni [28]

598
explanation: 500+98= 598

5 0

3 years ago

Which equation represents a line which is parallel to the line y = -7/2x-3

Maksim231197 [3]

You do not have the options listed, but I will tell you what the line needs:

[] A parallel line will need the same slope.

- The slope is our m in y = mx + b

[] What will this be for our problem:

- $y=\frac{-7}{2}x-3$

- Our slope is $\frac{-7}{2}$

[] So what will the line look like:

- $y=\frac{-7}{2}x +?$

- Since you do not have the options listed, I cannot tell you the answer, but I can tell you the answer will have a slope of $\frac{-7}{2}$

Have a nice day!

I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

5 0

2 years ago