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lbvjy [14]
3 years ago
8

Which are solutions of the equation x2 - 16 = 0? Check all that apply.

Mathematics
2 answers:
Karo-lina-s [1.5K]3 years ago
8 0
So we want to know what x times 2 is. So think about this: multiply x with 2. We can find out what works and what doesn’t. So remind yourself that if you are multiplying a negative number, you get a negative. And when you minus a negative with a positive it’s the same as a negative + a negative. So it can’t be a negative as the answer is 0. Try each positive and you will find the answer to be

X=8
Snezhnost [94]3 years ago
6 0

Answer:

B and E

Step-by-step explanation:

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Laguna del carbon, a salt lake located in. Argentina, lies 344 feet below sea level. El alto, Bolivia, is located approximately
adelina 88 [10]

Answer:

The difference in elevation between Laguna del Carbon and El Alto is 12,656 feet.

Step-by-step explanation:

Given that Laguna del carbon, a salt lake located in Argentina, lies 344 feet below sea level, while El Alto, Bolivia, is located approximately 13,000 feet above sea level, to determine what is the difference in elevation between Laguna del Carbon and El Alto, the following calculation must be performed:

13,000 - 344 = X

12.656 = X

Thus, the difference in elevation between Laguna del Carbon and El Alto is 12,656 feet.

5 0
3 years ago
In a crayon box there are 5 dark colors for every 8 light colors. If there are 20 dark colors, hoW many light colors are there.
Kisachek [45]

Answer:

32

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
QUESTION 4 (10 MARKS)
77julia77 [94]

Answer:

A. $22,223

B. $20,000

C. $20,000

Explanation:

The annual return of the retired couple's investment is called the yield in percentage.

A. If they go for Treasury bills which has a yield of 9%, to attain a return of at least $2,000 their investment must exceed $20,000. 9% of 22,223 = $2,000.07

B. . If they go for Corporate bonds option which has a yield of 11%, to attain a return of at least $2,000; 11% of 20,000 = $2,200

C. . If they go for Junk bonds option which has a yield of 13%, to attain annual return of at least $2,000; 13% of $20,000= $2,600

3 0
3 years ago
Three people invest in a treasure dive, each investing the amount listed below. The dive results in 40 gold coins. Apportion tho
garri49 [273]

Answer:

Alice: 20 coins, Ben: 16 coins, and Carlos: 4 coins.

Step-by-step explanation:

We know that the dive results in 40 gold coins.

We know that:

Alice: $7,600 Ben: $5,900 Carlos: $1,400.

So they have $ 14900 in total.

Now we will divide that money by 40.

x=\frac{14900}{40}\\\\x=372.5

So 1 gold coin costs $ 372.5. Now we will calculate how much they can get for the money they have.

A=\frac{7600}{372.5}=20.4\\\\B=\frac{5900}{372.5}=15.8\\\\C=\frac{1400}{372.5}=3.75\\

We conclude that:

Alice: 20 coins, Ben: 16 coins, and Carlos: 4 coins.

6 0
3 years ago
Need help with this...
suter [353]

Answer:

Step-by-step explanation:

____

Good evening ,

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Look at the photo below for the answer.

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6 0
3 years ago
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