Answer: -66d-21 I think.
Step-by-step explanation:
9(-8d-7<u>)</u>+6(d+7)
-72d-63+6d+42 Distributive Property
-72d+6d+-63+42 Combine Like Terms
-66d-21 Answer
Answer:
Mean temperature for the first 8 days was ![3.88^\circ](https://tex.z-dn.net/?f=3.88%5E%5Ccirc)
Step-by-step explanation:
Mean = ![\frac{4\cdot 7+3\cdot 1}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B4%5Ccdot%207%2B3%5Ccdot%201%7D%7B8%7D)
![=3.88^\circ](https://tex.z-dn.net/?f=%3D3.88%5E%5Ccirc)
Best Regards!
<span>x^2+15=8x
</span><span>x^2-8x=-15
x^2 - 2 (x)(4) =-15
adding 16 on both sides
</span>x^2 - 2 (x)(4) +16=-15+16
x^2 - 2 (x)(4) + 4^2= 1
(x-4)^2=1
taking square root on bothsides x-4 = +-1
so x-4=1 or x-4=-1
x-5 or x=3
Addition? I think that’s right
Answer:
$8505
Step-by-step explanation:
315 x 27 = $8505