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defon
2 years ago
8

#MathHelp HelpPlease

Mathematics
1 answer:
Ivenika [448]2 years ago
3 0
The correct answer is:  [C]:  " c² <span>− 16 " .
_______________________________________________________</span>
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What conclusion can be drawn by observing that 30 is to the right of 10 on a
enyata [817]

The correct answer is B. 30 > 10

Explanation:

In mathematics and related fields, number lines are straight lines that display numbers using intervals this is useful to represent quantities visually, for example in graphs. Additionally, in number lines, numbers are organized in ascending order from left to right, for example, number 1  will be placed to the left of number 2. According to this, number 30 placed to the right of 10 will represent a higher quantity, considering the more you go to the right the higher the number is. Thus, 30 is greater than 10 (30 > 10).

8 0
3 years ago
raj and his sister zia are both at secondary school. Raj is three years older than zia. the sum of the squares of their ages is
Cerrena [4.2K]

Let Zia's age be = x years

Raj is three years older than Zia, so Raj's age = x+3 years

As the sum of the squares of their ages is 369, so

x^{2}+(x+3)^{2}=369

x^{2}+x^{2}+6x+9=369

2x^{2}+6x+9=369

2x^{2}+6x-360=0

Factoring 2 out we have,

x^{2}+3x-180=0

Now solving this equation,

x^{2}+15x-12x-180=0

x(x+15)-12(x+15)

(x+15)(x-12)

x=-15 and x=12

Neglect the negative value as x cannot be negative

So x=12

Hence, Zia's age is 12 years and

Raj's age is 12+3 = 15 years


4 0
2 years ago
Lani opened a savings account with $450. She saves $225 per month. Which equation shows how much money Lani has in her account a
timurjin [86]
Hi.

The answer to your question is:

C. <em />y = 450 + 225<em>m</em>


8 0
3 years ago
Find the least common multiple of 8c4 and 6c2 .
Ksju [112]
The least common multiple is the smallest term that can be divided to both terms without any remainder. For the two terms 8c^4 and 6c^2, you can determine it into two part. First, you find the LCM for 8 and 6. You find the prime number that is common between the two. That would be 2. For the variables c^4 and c^2, the 'prime variable' is c. Therefore, the least common multiple for 8c^4 and 6c^2 is 2c.
6 0
3 years ago
I need an estimate. My teacher needs an explanation.​
zalisa [80]

Answer:

3.10 I think.

Step-by-step explanation:

4 0
2 years ago
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