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Kaylis [27]
3 years ago
8

Solve the inequality for x. -8x + 16 > -72 A) x < 7 B) x < 11 C) x > 7 D) x > 11

Mathematics
1 answer:
rjkz [21]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Given

- 8x + 16 > - 72 ( subtract 16 from both sides )

- 8x > - 88

Divide both sides by - 8 , reversing the symbol as a result of dividing by a negative quantity.

x < 11

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Describe the transformation and identify the domain and range.
lara [203]

Answer:

the domain is the legal values of x, while the range is all the legale values of y

Step-by-step explanation:

5 0
3 years ago
Find the value of sin(a/2) if cosa= 12/13<br>​
daser333 [38]

Answer: sin\frac{a}{2} = ± \frac{1}{\sqrt{26} }

Step-by-step explanation:

We very well know that,

cos2A=1−2sin²A

⟹ sinA = ±\sqrt{(1-} \frac{cos2A}{2} )

As required,  set A = \frac{a}{2}   &   cos a=  \frac{12}{13}    ,thus we get

sin \frac{a}{2} =± \sqrt{\frac{1-cos a}{2} }  

∴ sin\frac{a}{2} =±\sqrt{\frac{1-\frac{12}{13} }{2} } = ± \frac{1}{\sqrt{26} }

   since ,360° < \frac{a}{2} <450°

             ,180° < \frac{a}{2} <225°

Now, we are to select the value with the correct sign. It's is obvious from the above constraints that the angle a/2 lies in the III-quadrant where 'sine' has negative value, thus the required value is negative.

hope it helped!

   

5 0
3 years ago
Olivia planted 25 tomato plants, but only produced 20 tomatoes. What percentage of plants produce tomatoes?
solmaris [256]

Answer:

It would be 5.

Step-by-step explanation:

Hope this help!

8 0
3 years ago
Selina is playing a game that uses the spinner below.
MatroZZZ [7]

Answer:

A) 12.5%

B) 50%

C) 50%

Step-by-step explanation:

For A, 7 is one of the 8 possibilities (1/8). 1/8 of 100 is 12.5, so your chance of spinning a 7 is 12.5%

For B, even numbers are 4/8 or 1/2 of your options. 1/2 of 100 is 50, so your chance of spinning an even number is 50%

For C, there are 4 out of 8 numbers that are prime (2,3,5, & 7).

4/8 or 1/2 of 100 is 50, so your chance of spinning a prime number is 50%

hope this helps

4 0
3 years ago
A child pool is 3.8 feet wide 5.5 feet long and 1.2 fee deep, what is the volume of the pool?
Anni [7]

Answer:

25.08

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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