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Doss [256]
3 years ago
5

81 1/4 is equal to 2. This is the question. It is in algebra 2 and I have to say true or false, I think it is false but I am con

fused.
Mathematics
1 answer:
nignag [31]3 years ago
6 0
Your answer for that question is true
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Solve the system of equations by graphing.<br><br> y=−x−3<br><br> y=3+12x
zmey [24]

Answer:

Step-by-step explanation:

3 0
3 years ago
At time t ≥ 0, the velocity of a body moving along the s-axis is v = t² -5t +4. When is the body moving backwards
katovenus [111]

Answer:

A

Step-by-step explanation:

The velocity of a moving body is given by the equation:

v=t^2-5t+4 ,\, t\geq0

Is the velocity is <em>positive </em>(v>0), then our object will be moving <em>forwards</em>.

And if the velocity is negative (v<0), then our object will be moving <em>backwards</em>.

We want to find between which interval(s) is the object moving backwards. Hence, the second condition. Therefore:

v

By substitution:

t^2-5t+4

Solve. To do so, we can first solve for <em>t</em> and then test values. By factoring:

(t-4)(t-1)=0

Zero Product Property:

t=1, \text{ and } t=4

Now, by testing values for t<1, 1<t<4, and t>4, we see that:

v(0)=4>0,\, v(2)=-20

So, the (only) interval for which <em>v</em> is <0 is the second interval: 1<t<4.

Hence, our answer is A.

7 0
3 years ago
4380 rounded to the nearest 100​
maks197457 [2]

4,400

The number 3 is in the hundredths place the 8 is behind the 3 so it’s larger than 5 so you turn the 3 into a 4(4,400) and turn all the numbers behind zero (4,400).

4 0
3 years ago
Read 2 more answers
What are the steps to this?
Evgen [1.6K]

Answer:

B=112

Step-by-step explanation:

Angle B is on the same line as angle A(68). They would need to combine for a total of 180 degrees. So 68-180=112

4 0
3 years ago
Read 2 more answers
D =<br> = (x - x)*+(y - y)<br> +<br> TU = (4,1) (3,-1)<br> Answer:
RideAnS [48]

Answer:

Distance

2.23606797749979

Midpoint

(3.5,0)

Slope

2

x intercept

3.50

y intercept

−7.00

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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