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Gala2k [10]
2 years ago
11

Which of the following represents all solutions to the equation 1/3x^2 +10 = 7

Mathematics
2 answers:
fredd [130]2 years ago
5 0

Answer:

1 +-3i

Step-by-step explanation:

ahrayia [7]2 years ago
5 0

Answer:

answer is 1) x=±3i

Step-by-step explanation:

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Question 7. Every day, Omar put the extra change from his pockets into a glass jar. After 30 weeks, he
FromTheMoon [43]

Answer:

$16

Step-by-step explanation:

He had $16 so he had spent all of it due to the question asked.

4 0
3 years ago
What expression is equal to COS B????
Murrr4er [49]

Answer:

A/C

Step-by-step explanation:

Since the sum of the angles in a triangle equals 180°, and angle C is 90°.

That means angles A and B add up to 90°, that is, they are complementary angles. Therefore the cosine of B equals the sine of A.

We saw on the last page that sin A was the opposite side over the hypotenuse, that is, a/c. Hence, cos B equals a/c.

Your welcome! :)

3 0
3 years ago
What is the value of 3x^2 + 5x + 25, when x = 3<br> (3x^2 means 3x squared)
pentagon [3]
I got 67 but I can guarantee it’s right
8 0
3 years ago
a 136 foot tall cell phone tower casts a 79.9 foot shadow. find the shadow length for a nearby 40 foot telephone pole
AleksAgata [21]

Given :

A 136 foot tall cell phone tower casts a 79.9 foot shadow.

To Find :

The shadow length for a nearby 40 foot telephone pole .

Solution :

We know , the ratio of height and shadow , will be same for every object .

Let , length of shadow of pole is x .

So ,

\dfrac{79.9}{136}=\dfrac{x}{40}\\\\x=\dfrac{79.9\times 40}{136}\ foot\\\\x=23.5\ foot

Therefore , the length of shadow of tower is 23.5 foot .

Hence , this is the required solution .

3 0
3 years ago
What is the value of 5x+3 when x=4
mylen [45]

Answer:

23

Step-by-step explanation:

plug and chug: 5(4)+3=20+3=23

7 0
3 years ago
Read 2 more answers
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