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Scilla [17]
4 years ago
7

What is the solution to -1-7?

Mathematics
2 answers:
zubka84 [21]4 years ago
8 0

Answer:

-8

Step-by-step explanation:

-1-7 = -8

murzikaleks [220]4 years ago
5 0

-8.

-1 - 7 would be adding because when subtracting negatives you always change the sign and a trick i know is that negatives are referred to as “hate” and positives are referred to as “love”. therefore if you do a negative minus a positive you will get a negative. so the answer here is -8.

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Can you help me<br>4(b–1)²–9​
Tamiku [17]

Answer:

(b-1)²-9​

= 4[(b - 1)(b - 1)] - 9

= 4[b² - b - b + 1] - 9

= 4(b² - 2b + 1) - 9

= 4b² - 8b + 4 - 9

= 4b² - 8b - 5

Hope this helps!

7 0
3 years ago
= 2. Given the quadratic equation 3x2 – 8x + k = 0 has no real roots. Find the range of values of k.
VashaNatasha [74]

\text{If there  are no real roots, then}\\\\~~~~~\text{Discriminant} < 0\\\\\implies b^2 -4ac < 0\\\\\implies (-8)^2 -4 \cdot 3 k < 0\\\\\implies 64-12k < 0\\\\\ \implies 12k > 64\\\\\implies k > \dfrac{64}{12}\\\\\implies k > \dfrac{16}3\\\\\text{Interval,}~ \left( \dfrac{16}3, ~\infty\right)

6 0
2 years ago
The high temperatures in Anchorage, Alaska for five days in December were -8°C, -1°C, 2°C, 4°C, and -2°C.
IRISSAK [1]

Answer:

-1 Degree C

Step-by-step explanation:

When its talking about average temperature, its talking about the mean. To calculate mean, you add all the numbers and divide it by how many numbers are there.

(-8) + (-1) + 2 + 4 + (-2) = -5

mean = -5/5

-1 degree C

7 0
3 years ago
Can someone find the area please?
balu736 [363]
12 times 5 is 60

12-10=2, so 2 times 6 is 12, divided by 2 is 6

The area is 66
5 0
3 years ago
Read 2 more answers
Can I have the answer to this by combining like terms
snow_tiger [21]
Yes you can you would have to combine 8n plus 8n which is 16n and then bring it down to 16n-4n to the second power
5 0
3 years ago
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