All categories

3 years ago

For a science experiment, Ashley removes a cold liquid from a refrigerator and measures its temperature every

Mathematics

1 answer:

zhuklara [117]3 years ago

8 0

Answer:

why are the number wierd i do it but idk the temp for the second one

Step-by-step explanation:

You might be interested in

Please help and explain

Murrr4er [49]

Answer: Option A

$x=\frac{3+i}{2}$ or $x=\frac{3-i}{2}$

Step-by-step explanation:

Use the quadratic formula to find the zeros of the function.

For a function of the form

$ax ^ 2 + bx + c = 0$

The quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case the function is:

$2x^2-6x+5=0$

$a=2\\b=-6\\c=5$

Then using the quadratic formula we have that:

$x=\frac{-(-6)\±\sqrt{(-6)^2-4(2)(5)}}{2(2)}$

$x=\frac{6\±\sqrt{36-40}}{4}$

$x=\frac{6\±\sqrt{-4}}{4}$

Remember that $\sqrt{-1}=i$

$x=\frac{6\±\sqrt{4}*\sqrt{-1}}{4}$

$x=\frac{6\±\sqrt{4}i}{4}$

$x=\frac{6\±2i}{4}$

$x=\frac{3\±i}{2}$

$x=\frac{3+i}{2}$ or $x=\frac{3-i}{2}$

3 0

3 years ago

Simplify the expression, write in standard and exponential form.

timama [110]

Answer:

$(5x {y}^{2} ) ^{7} = {5x}^{7 } \times {x}^{7} \times {y}^{14} = {5x}^{14} {y}^{14}$

5 0

3 years ago

Read 2 more answers

In a class 30 of students, 13 have a cat and 7 have a dog. There are 4 students who

AVprozaik [17]

Answer:

4/13

Step-by-step explanation:

"given that they have a cat?" means you are referring to only the students that have cats(that is the number on the bottom)

i am very bad at explaining math lol

7 0

3 years ago

X - y = 2 x + y = -3 Solve this using elimination Quickly please!!!!

blagie [28]

The answer for x=-1
The answer for y=-5/2

I believe these are correct

7 0

2 years ago

4 Which of the following is a function? А B C D

Aloiza [94]

Answer:

Step-by-step explanation:

A function is when every input has one output.

Easiest way is to do the "vertical line test" and "horizonal line test."

Basically you draw a vertical line and a horizontal line.

If either line passes through more than one point, then it is not a function.

The only one that passes them is B, the line.

7 0

3 years ago

Read 2 more answers