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Neko [114]
3 years ago
12

I need help with this. please answer

Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0
x^2-10x+21=0\\\\x=\dfrac{-10}{2}=-5\\\\Answer:\boxed{x=-5}
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Please answer ASAP!
andreev551 [17]

Ignore this post, I have no Idea what it is, report this so it gets taken down so someone else can answer...

6 0
3 years ago
The diameter of a circle is 4 centimeters. What is the length of a 45° arc?​
madam [21]

Answer: The length of the arc is 1.57 centimeters

Step-by-step explanation: If the diameter has been given as 4 centimeters, then the radius would be diameter divided by 2, and that equals 2.

With the radius now known as 2, we can calculate the length of the arc as follows;

Length of an arc = (Ω/360) x 2πr

Where Ω is the angle subtended by the radio and r is the radius.

Length of an arc = (45/360) x 2 x 3.14 x 2

Length of an arc = (1/8) x 12.56

Length of an arc = 1.57

Therefore, the length of the arc is 1.57 centimeters

3 0
3 years ago
Factor completely <br> x^2 - 10x + 24
sergejj [24]

Hello.

The answer is: (x−4)(x−6)

Factoring means we want something like

(x+_)(x+_)

We need two numbers that...

Add together to get -10

Multiply together to get 24

Try -4 and -6:

-4+-6 = -10

-4*-6 = 24

Fill in the blanks in

(x+_)(x+_)

with -4 and -6 to get...

(x-4)(x-6)

Have a nice day





3 0
3 years ago
Read 2 more answers
Slice indices must be integers or none or have an __index__ method
Rama09 [41]

Answer:

This is an error (TypeError) that is displayed by the Python interpreter when one of the parameter in a slice function is not a value of type integer or None.

For example:

>>> a = 'welcome'

>>> a[2.2:3]

Traceback (most recent call last):

 File "<stdin>", line 1, in <module>

TypeError: slice indices must be integers or None or have an __index__ method

The error occur because the value 2.2 is not an integer or None

Step-by-step explanation:

8 0
3 years ago
A number in scientific notation will have a____ exponent when it is less than 1 (A) negative (B) reduced (C) positive (please an
castortr0y [4]

Answer:

Negative.

Step-by-step explanation:

A negative exponent.  For example, 0.025 in scientific notation is 2.5*10^-2.

7 0
4 years ago
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