Answer:
4.47 and -4.47 ( to nearest hundredth)
Step-by-step explanation:
x^2 = 20
x = +/- sqrt 20
= +/- sqrt 4* 5
= +/- 2 sqrt5
= +/- 4.47 to nearest hundredth
Hey!
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Absolute Value - the enormity of a number regarding its sign.
|-5| = 5
|5| = 5
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Hope This Helped! Good Luck!
15. 0=x^2-2x-24
A. x=-6,4
B. x=-6,-4
C. x=6,-4
D. x=6,-4 ****
Answer:
X=6,-4
Step-by-step explanation:
0=x^2-2x-24
First substitute x with 6
0=(6)^2-2(6)-24
36-12-24
=0
Now try -4
0=(-4)^2-2(-4)-24
Two negative numbers time each other turns it into a positive number -4 x -4=16
24-24=0
Answer:
b
Step-by-step explanation:
A.
B.
C.
D.
9/40 + 2/40 = 11/40
hope this helps
1.
(3 pt)
What are the domain and the range of the relation?
{(−4, 3), (0, −10), (6, −6), (7, 0), (9, −5), (13, −2)}
Choose exactly two answers that are correct.
A.
domain: {−10, −6, −5, −2, 0, 3}
B.
domain: {−4, 0, 6, 7, 9, 13}
C.
range: {−10, −6, −5, −2, 0, 3}
D.
range: {−4, 0, 6, 7, 9, 13}
1. 7 + 3 x 2 + 4= 25
2. 8 (a Two Above the 8) Divided by 4 x 8 = 2
3. 16 + 8 - 5 x 2 = 14
Answer:
1)
2 )Below statements are true
1. 7 + 3 ×(2 + 4)= 25
2.
3. 16 + 8-(5×2)= 14
Step-by-step explanation:
1) To write an expression with a value =12 it should contain four numbers and two different operations.
2) Place Parentheses,if needed, to make each statement true.
1. 7 + 3×2 + 4= 25
In this statement one parentheses is missing i.e. bracket
New statement → 7 + 3 ×(2 + 4)= 25
7 + 3 ×2 +3× 4= 25
7 + 6 + 12= 25
25=25 now, the statement is true.
2. 8 (a Two Above the 8) Divided by 4 x 8 = 2
This statement (a Two Above the 8) means
so,
The statement is true.
3. 16 + 8 - 5×2 = 14
The statement is true when we solve by BODMAS
i.e. 16 + 8-(5×2)= 14
16 + 8-10= 14
24-8=14
14=14 statement is true