MATHEMATICS HIGH SCHOOL

24 21 is 60% of what number?

Answers

Answer 1

Answer:

Answer:

could u explain it better

Answer 2

Answer:

Answer: either I don't remember if you use the % or the number ok

Hope this helps

2421 × 60 = 145260

2421 × 60% = 1452.6

Step-by-step explanation:

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Please can anyone solve 9n-10=4n+10

Answers

yes

remember you can do anything to an equaiton as long as you do it to boh sides
ad try to get unknown to one side
9n-10=4n+10
minus 4n both sides
9n-4n-10=4n-4n+10
5n-10=0+10
add 10
5n+10-10=0+10+10
5n+0=20
5n=20
divide both sies by 5
5n/5=20/5
5/5n=4
1n=4
n=4

9n-10=4n+10
+10 +10
9n=4n+20
-4n -4n
5n =20
/5 /5
n=4

What is the value of f(-4) in the piecewise function f(x)= -x-5 for -5<= x <= -2; -x^2+1 for -2<=x<=2; (x-3)^2+2 for 2<=x<=4? If that makes any since

Answers

Answer:

The value for f(-4) in the piecewise function is -1

Step-by-step explanation:

As the function is defined by pieces we must choose the correct interval when replacing. In this case, the value of the function needs to be calculated in x=4.

This value of x is within the interval:

-5<=x<=-2

Therefore we replaced in the corresponding expression:

f(x)=-x-5

f(-4)=-(-4)-5=-1

Take into account this case is not particularly a function since, for example, in the value of x=-2 the expression can take two values corresponding to two different pieces. The obtained result is only valid in the range for -5<=x<=-2.

We first need to pick the correct piece to use. In this case, we will use f(x) = -x-5 because -5<=-4.

Then, we use direct substitution:
f(-4) = -(-4) - 5
f(-4) = -1

What is the solution to the equation?4 x squared − 3 equals 77
Choose all answers that are correct.

A.
5 square root of 2

B.
2 square root of 5

C.
− 2 square root of 5

D.
− 5 square root of 2

Answers

The answers are B. 2 square root of 5 and C. − 2 square root of 5.

$4 x^(2) -3=77$
$4 x^(2) =77+3$
$4 x^(2) =80$
$x^(2) =80:4$
$x^(2) =20$
$x= √(20)$
$x= √(4*5)$
$x= √(4)* √(5)$

Since √4 could be either -2 or +2, the solutions are:
$x=2 √(5)$ or $x=-2 √(5)$

MATH HELP ASAP PLEASE

Answers

[3-(5-(7+1))^2]-5+3]

[3-(5-8)^2]-5+3]

[3-(-3)^2]-5+3]

[3+9]-5+3]

[12]-5+3]

12[-2]

12+2

[3-(5-(7+1))²]-5+3]
[3-(5-8)²]-5+3]
[3-(-3)²]-5+3]
[3-9]-5+3]
(-6)-5+3
(-11)+3
(-8)

Jonah sets the table for breakfast and dinner every Monday Tuesday Wednesday and Friday. how many times does he set the table in six weeks?Make a table

Answers

He set the table 24 times

toan is building tables for the park department.He needs 20 bolts for each table.if he has 60 bolts at his workplace and he gets 300 more bolts from the supply room,how many tables can he build?

Answers

60+300=360
360/20=18
he can build 18 tables

360
_
20 + 18 your welcome enjoy your answer :D

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