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lutik1710 [3]
4 years ago
5

The temperature at a mountain base camp was −2 degrees Celsius on Thursday. Friday morning, the temperature was 1 degree Celsius

lower than what it was on Thursday. By Friday evening, the temperature was 3 degrees Celsius lower than what it was that morning. What was the temperature at the base camp Friday evening? −9 degrees Celsius −8 degrees Celsius −7 degrees Celsius −6 degrees Celsius
Mathematics
2 answers:
yulyashka [42]4 years ago
7 0

Answer:

The answer is -6 C

Andru [333]4 years ago
4 0

Thursday: -2 deg C

Friday morning, 1 deg C lower: -2 deg C - 1 deg C = -3 deg C

Friday evening: 3 deg C lower: -3 deg C - 3 deg C = -6 deg C


Answer: -6 deg C

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8 0
4 years ago
What multiplies to 24 and adds to -9
d1i1m1o1n [39]
Unfortunately, there are no two such numbers.

If your original question was: \sf{x^{2} -9x+24=0} and you were trying to factor it, I would suggest the quadratic formula.

There are two solutions to \sf{ax^2+bx+c=0, where \sf{a\neq 0}<span>, and we can find them by using the quadratic formula: 
</span>
\huge{\sf{x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}}}

So using that, here is how it would get factored:

For your equation, \sf{a = 1, b = -9, c = 24}

Plug in those values into the formula:

\sf{\frac{ -(-9) \pm \sqrt{ (-9)^2 -  4 \cdot 1 \cdot 24} }{ 2 \cdot 1 }}

Simplifying it:

\sf{\frac{ 9 \pm \sqrt{ -15 } }{ 2 }}

And so the solutions are:

\sf{x_1 = \frac{ 9~+~\sqrt{ -15 } }{ 2 } = \frac{9}{2}+\frac{1}{2}\sqrt{15}i}
and
\sf{x_2 = \frac{ 9~-~\sqrt{ -15 } }{ 2 } = \frac{9}{2}-\frac{1}{2}\sqrt{15}i}
7 0
3 years ago
Read 2 more answers
What is 1620 divisible by?
Fed [463]
<span>
<span> 1620 / 1 = 1620
1620 / 2 = 810
1620 / 3 = 540
1620 / 4 = 405
1620 / 5 = 324
1620 / 6 = 270
1620 / 9 = 180
1620 / 10 = 162
1620 / 12 = 135
1620 / 15 = 108
1620 / 18 = 90
1620 / 20 = 81
1620 / 27 = 60
1620 / 30 = 54
1620 / 36 = 45
1620 / 45 = 36
1620 / 54 = 30
1620 / 60 = 27
1620 / 81 = 20
1620 / 90 = 18
1620 / 108 = 15
1620 / 135 = 12
1620 / 162 = 10
1620 / 180 = 9
1620 / 270 = 6
1620 / 324 = 5
1620 / 405 = 4
1620 / 540 = 3
1620 / 810 = 2
1620 / 1620 = 1 </span></span>
3 0
3 years ago
(a+2b)² ?????????????????????<br>​
lbvjy [14]

Answer:

a² + 4ab + 4b²

Step-by-step explanation:

Given

(a + 2b)²

= (a + 2b)(a + 2b)

Each term in the second factor is multiplied by each term in the first factor, that is

a(a + 2b) + 2b(a + 2b) ← distribute both parenthesis

= a² + 2ab + 2ab + 4b² ← collect like terms

= a² + 4ab + 4b²

3 0
3 years ago
A line with a slope of -3 that passes through the point (-2, 6)
scZoUnD [109]
I believe the equation is y = -3x + 0
3 0
3 years ago
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