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Andre45 [30]
3 years ago
10

Negative2 - 7 is equvilent to

Mathematics
2 answers:
NeX [460]3 years ago
5 0

Answer:-5

Step-by-step explanation:

Amiraneli [1.4K]3 years ago
4 0

Answer:

-9

Step-by-step explanation:

-2 - 7

Picture a number line in your head, you begin at negative 2, which is less than 0 and you further go left 7 points, so you will end at -9

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4(2x - 5) + 15 = 11<br><br>Please exsplain step by step. Thank you x
iogann1982 [59]
4(2x-5)+15=11
8x-20+15=11
8x-5=11
8x=11+5
8x=16
x=16/8
x=2
Hope it helps
8 0
3 years ago
If f(x) = 1/3x^2 + 5, find f(-9).<br> A. 248<br> B. -22<br> C. 11<br> D. 32
melamori03 [73]

Answer:

D. 32

Step-by-step explanation:

For this problem, we simply plug -9 in for x in f(x):

f(x)=\frac{1}{3} x^2+5  ⇒  f(9)=\frac{1}{3} *(9^2)+5=\frac{1}{3} *81+5=27+5=32

Thus, the answer is D. 32.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Give some examples of quantities that increase or decrease at a constant rate expressed as a percent.
docker41 [41]
I would help but I'm not sure what you are asking for us to do
7 0
3 years ago
Read 2 more answers
Can someone please help me with this question?
vodka [1.7K]

Answer:

Answer is D hope this helps :)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Two more questions , 15 points.
Mumz [18]

The formula that is useful for solving both of these problems is ...

(v_2)^2-(v_1)^2=2ad\qquad\text{a=acceleration, d=distance}\\\\ \text{where $v_1$ and $v_2$ are initial and final velocities}

9. Given v₁=15, a=9.8, d=10, find v₂.

... (v₂)² = 15² + 2·9.8·10

... v₂ = √421 ≈ 20.5 . . . . m/s

10. Given d=12 m when a=-9.8 m/s² and v₂=0, find d when a=0.17·(-9.8 m/s²).

The formula tells us that d=(v₁)²/(2a), which is to say that the distance is inversely proportional to the acceleration. If acceleration is 0.17 times that on earth, distance will be 1/0.17 ≈ 5.88 times that on earth.

(12 m)/0.17 ≈ 70.6 m

7 0
3 years ago
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