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guajiro [1.7K]
3 years ago
12

The question is in the picture please help if can I will be really grateful

Mathematics
1 answer:
Alexus [3.1K]3 years ago
8 0
The factor (x-9) is negative for x < 9. It is zero for x = 9.

The factor (7x+2) is negative for x < -2/7.

The factors have different signs for -2/7 < x < 9. When their signs are different, their ratio is less than zero. When x = 9, the ratio is equal to zero.

The appropriate choice is the graph that shows -2/7 < x ≤ 9.

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A cell phone measure 10 cm long,6 cm long,and 2cm high what is the volume of the cell phone
vaieri [72.5K]
The are of the cell phone is 184 hope this helped
3 0
3 years ago
Find the exact value of tan( cos^-1 ( -5/13))
trasher [3.6K]

Answer:

-¹²/₅  

Step-by-step explanation:

Let cos a = -⁵/₁₃

Then tan a = sin a/cos a

= [√(1 - cos²a)]/cos a

= {√[1 - (-⁵/₁₃)²]}/(-⁵/₁₃)

= -[√(1 - ²⁵/₁₆₉)] × ¹³/₅

= -[(√(¹⁴⁴/₁₆₉ )] × ¹³/₅

= -¹²/₁₃ × ¹³/₅

= -¹²/₅

tan(arccos (-⁵/₁₃)) = -¹²/₅

The diagram shows the 2nd  quadrant of a circle with radius 13, cos a = -⁵/₁₃, and tan a = ¹²/₍₋₅₎ = -¹²/₅.

4 0
3 years ago
-1/3+(-3/5)=
Illusion [34]
\frac{-1}{3} + \frac{-3}{5}
You need to use the equation for adding fractions, which is \frac{a}{b} + \frac{c}{d} =(ad+bc)/bd

In this case,  a=-1, b=3, c=-3, d=5. 

&#10; \frac{(-1*5)+(3*-3)}{(3*5)}

simplify

answer: \frac{-14}{15}
3 0
3 years ago
Read 2 more answers
PLZ HELP ME PLZzzz FIRST PERSON TO ANSWER WILL BE THE BRAINLIEST<br> (x power2/y) power 3
borishaifa [10]

Answer:

the answer is x power 6/y power 3

5 0
3 years ago
Read 2 more answers
Please help me in solving this 4Log216 = 12x​
bezimeni [28]

Answer:

log(6) = x

Step-by-step explanation:

4log(216)=12x

Divide both sides by 12

log(216)/3 = x

Use properties of logs

log(216^(1/3)) = x

Simplify

log(6) = x

6 0
3 years ago
Read 2 more answers
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