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nevsk [136]
2 years ago
12

Which of these inequalities has no solutions?

Mathematics
1 answer:
SVEN [57.7K]2 years ago
8 0
B is the one without a solution, because it states that a square root is less than a negative number. if √x is less than a negative value, then there isn't a number that you can plug into x that would make the inequality true. the square root of negative numbers creates an error (or an invisible number) so any values less than 0 plugged in for x don't satisfy the inequality. any positive numbers only give you positive square root results, so you don't get anything less than -17. for example:

√(36) < -17
6 < -17 is false.
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Write an explicit formula for an, the nth term of the sequence 4, -24, 144, ....
nadezda [96]

Answer:

Tn = 4(-6)^n-1

Step-by-step explanation:

Write an explicit formula for an, the nth term of the sequence 4, -24, 144, ....

The sequence is a geometric sequence

Tn = ar^n-1

a is the first term

a = 4

r = -24/4 =144/-24

r = -6

Substitute

Tn = 4(-6)^n-1

3 0
2 years ago
A=3 b=2 c=7<br>a+b+c=??<br>Help me please thank you​
tester [92]

Answer: 13

Step-by-step explanation:

<u>Given:</u>

a+b+c, where a=3, b=2, c=7

<u>Solve:</u>

Given

 a+b+c

Substitute values into the expression

=(3)+(2)+(7)

Combine like terms

=6+7

=13

3 0
2 years ago
Read 2 more answers
Does anyone know this? Also, can you explain how you get the answer? cuz I have 10 other questions same as this.
Nezavi [6.7K]
The answer is 36

Multiply each side by 9

9 times for and 9 times n/9

The n/9 will cancel out so you are left with n= 9 times 4

This comes to 36
7 0
2 years ago
4x^2-16x-5 can be written in vertex form f(x)=a(x-h)^2+k.<br> What are the values of a,h, and k.
Hunter-Best [27]

Answer:

h=2

a=4

k= -21

Step-by-step explanation:

your h and k are vertex . h= x coordinate of vertex and k= y

so formula for vertex coordinates is x= -b/2a and y= (4ac-b²)/4a

your a b c are 4 -16 and -5 respectively according to the main equation

your a is concavity which is the same number as the 'a' of the equation

5 0
3 years ago
8,17,26,...<br> Find the 31st term.
Neko [114]

Answer:

a1 =a1+(n-1) *d =8+(1-1)*9=8

a2 =a2+(n-1) *d =8+(2-1)*9=17

a3 = a3+(n-1) *d =8+(3-1)*9=26

Sana po makatulong :)

8 0
3 years ago
Read 2 more answers
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