What are the zeros of the function, f(x)=x^2-2x-15

Answers

Answer 1

Answer: Zeros of the function are -3 and 5.

Answer 2

Answer: factor
wat adds to -2 and times to get -15
-5 and 3
(x+3)(x-5)=0
set to zero

x+3=0
x=-3

x-5=0
x=5

x=-3 or 5

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A star has a diameter of 4,680,000,000 units. Express this number in scientific notation.
Lionel computed the average rate of change in the depth of a pool over a two-week interval to be zero. Which statement must be true?The pool must have been empty for the entire interval. The pool must have been the same depth at the start of the interval as it was at the end of the interval. The pool must have been deeper at the end of the interval than it was at the start of the interval. The pool must have been more shallow at the end of the interval than it was at the start of the interval.
Which statement is true?
Explain the answer for -10=m+-15
How do i solve 3x² - 8x + 2 = 0 using quadratic formula?

Divide the following polynomial, then place the answer in the proper location on the grid. (9x 4 + 3x 3y - 5x 2y 2 + xy 3) / (3x 3 + 2x 2y - xy 2)

Answers

The answer is -4+72/2y+9 when you solve using polynomial division :)

What is 2% of $230,000

Answers

if you set it up to cross multiply you do 230,000*2=460,000

then you divide by 100 and get your answer of 4600$

2% of 230000
we make the 2% to deckmal
.02 * 230000
=4600

A system of two linear equations is graphed. The lines have the same slope, but different intercepts. How many solutions does the system have?A.
0
B.
1
C.
2
D.
infinite

Answers

Hello,

lines are differents and parallel so 0 solutions
Answer A

Ben takes a random sample of 25 students in his seventh grade class and finds that 85% of the sample prefers math over science.there are 150 students in the seventh grade.based on the sample proportion,about how many students in the seventh grade would be expected to prefer math over science

Answers

Answer:

The number of students in the seventh grade who would be expected to prefer math over science are:

128

Step-by-step explanation:

Total number of students in seventh grade are: 150 students.

Now he took a sample of 25 students and find that the 85% of the sample prefers math over science.

This means that out of the sample the number of students who prefer maths over science is:

$=(85)/(100)* 25\n\n\n=(85)/(4)\n\n\n=21.25\ students$

Now, out of the total seventh graders the number of students who prefer math over science is:

$=(21.25* 150)/(25)\n\n\n=127.5$

which is approximately equal to 128.

Hence, the answer is:

128 students

Part 1 : Ben takes a random sample of 25 students in his seventh-grade class and finds that 85% of the sample prefers math over science. There are 150 students in the seventh grade. Based on the sample proportion, about how many students in the seventh grade would be expected to prefer math over science?

Option 1 : 25

Option 2 : 85

Option 3 :150

Option 4 :128

Solutions - Convert the percent into decimal and multiply.

85% of 150 = 0.85 * 150

= 127.5 which is rounded to 128

How many faces does a right rectangular prism have if it has 8 vertices and 12 edges

Answers

The answer you are looking for is 6 faces
hope that helps!!

It has 6 faces, it is also known as a cuboid.

Evaluate, 2 x {[5 x (60-14 divided by 7)] + 25} x 5=?

Answers

$2 * \left \{ [5 * (60-(14 )/(7) )] + 25 \right \} * 5=2 * \left \{ [5 * (60-2)] + 25 \right \} * 5= 2 * \left \{ (5 * 58) + 25 \right \} * 5=\n\n= 2 * \left \{ 290 + 25 \right \} * 5=2*315*5=3150$

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If f ( x ) f(x) is an exponential function where f ( − 3.5 ) = 25 f(−3.5)=25 and f ( 6 ) = 33 f(6)=33, then find the value of f ( 6.5 ) f(6.5), to the nearest hundredth.

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