MATHEMATICS HIGH SCHOOL

Which inequality represents all values of x for which the product below is defined?√5x ·√x+4
a.x>0
b.x≥0
c.x≤-4
d.x≥-4

Answers

Answer 1
Answer: √(5x)\cdot√(x+4)\n\n5x\geq0\ \wedge\ x+4\geq0\nx\geq0\ \wedge\ x\geq-4\Righarrow x\geq0\n\nAnswer:B.
Answer 2
Answer:

Answer:

Answer is B for Apex!

Step-by-step explanation:

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Help me ASAP! ANSWER ALL
Please help, I don't know the answer!

Sin43×cos47+cos47×sin43

Answers

sin(α + β) = sin(α)cos(β) + cos(α)sin(β) 

sin43×cos47+cos47×sin43 = sin(43 + 47) 

= sin(90) = 1

Which expression is equivalent to (st)(6)?O s(t(6))
O s(x) × t(6)
Os(6) × t(6)
O 6 × S(x) × t(x)

Answers

Hello!

Answer:

\large \boxed{\sf {\circ} ~~~s(t(6))}

Step-by-step explanation:

→ We want an expression wich is equivalent with (st)(6).

→ Let's develop this expression:

\sf (st)(6)\n\n= \ (st) * 6\n\n= 6st\n\n= 6 * s * t\n\n= s * 6t\n\n= s(6t)\n\n= s(6 * t)\n\n= s((t(6))

Conclusion:

So an equivalent expression of (st)(6) is s((t)(6)).

Final answer:

The term (st)(6) in mathematics signifies that 's' and 't' are multiplied together, and the result is then multiplied by '6'. Using the associative property of multiplication, the equivalent expression is s(t(6)).

Explanation:

In mathematics, the expression (st)(6) signifies multiplication. The presence of parentheses indicates that the variables 's' and 't' should be multiplied together first, and then the product should be multiplied by '6'. This principle is known as the associative property of multiplication, which states that the way in which factors are grouped in a multiplication problem does not change the product. Therefore, the equivalent expression to (st)(6) is s(t(6)), which means 's' multiplied by the product of 't' and '6'.

Learn more about Associative Property of Multiplication here:

brainly.com/question/35169763

#SPJ2

If AD = 6 meters, which does AB equal? Select one of the options below as your answer:
A.6 meters
B.10 meters
C.12 meters
D.15 meters

Answers

AD = 6 m
AB is a hypotenuse and AD is an adjecant. 
cos 60° = AD / AB
AB = AD / cos 60°
AB = AD : 1/2
AB = 6 : 1/2 = 12
Answer:
C ) 12 meters

Nina walked 3.7 miles everyday for one month how many miles in all did she walk in 31 days

Answers

Nina walked 114.7 miles in 31 days. All you have to do is multiply 3.7 by 31 

Witch expression has the same value as 2 to the power of 12

Answers

Answer:

4096

Step-by-step explanation:

2^12

=2x2x2x2x2x2x2x2x2x2x2x2=4096

A helicopter flies 312 miles against the wind in 2 hours; with the wind, it can fly 468 miles in the same amount of time. Find the speed of the helicopter in still air.

Answers

Answer:

78miles/hour

Step-by-step explanation:

If a helicopter flies 312 miles against the wind in 2 hours, the speed of the helicopter in air is expressed as shown;

Speed = Distance/Time

Speed = 312miles/2hours

Speed = 156miles/hr

The speed of the helicopter against the wind is 156miles/hr

If it can fly 468 miles in the same amount of time, the speed during this time at this distance will be;

speed = 468 miles/2hours

Speed = 234miles/hr

The speed of the helicopter in still air = Speed while flying - Speed while against the wind

The speed of the helicopter in still air = 234miles/hr - 156miles/hr

The speed of the helicopter in still air  = 78miles/hour
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