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jonny [76]
3 years ago
15

Simplify. (-4x^4+x^2-4)+(5x^2-4)(−4x ​4 ​​ +x ​2 ​​ −4)+(5x ​2 ​​ −4)

Mathematics
1 answer:
zloy xaker [14]3 years ago
8 0
-4x^4 - 15x^2 + 1 - 19/x^2 is your answer

Hope I helped :)
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The three towns of Ripon, Sparta,
coldgirl [10]

Answer:

Obtuse triangle and x=38

Step-by-step explanation:

38 + 104 + x = 180

142 + x = 180

x = 38

8 0
3 years ago
Which of the following is not a way to say 2x+2
aliya0001 [1]
The answer is B) Two times the sum of a number and two. That would be completely different that twice a number plus two.

Hope this helps!
7 0
3 years ago
A baseball is thrown into the air from the top of a 224-foot tall building. The baseball's approximate height over time can be r
antoniya [11.8K]
The function is h(t) = -16t^2 + 80t + 224, and according to the description of the function in the problem statement, we have the following:

at t=0 after being thrown (that is, at initial time), the height of the ball is calculated by h(0) as follows:

h(0) = -16(0)^2 + 80(0) + 224=0+0+224=224 (ft), which is the initial height, as expected.


At t=1 (sec), the height would be  h(1) = -16(1)^2 + 80(1) + 224=-16+80+224=288. 

etc.


The path is parabolic, as we know by seeing that the function is a quadratic polynomial function. This function has been given in factored form as well. From that we can see that the zeros of the function are t=7 and t=-2.

This means that at t=7 sec, the height h is 0, which means that the ball has hit the ground. t=-2 has no significance in the context of our problem so we just neglect it.


Answer: B) 7 sec



6 0
3 years ago
Read 2 more answers
The circumference of a bowling ball is 8pi in. Find the surface area of the bowling ball. Express your answer in terms of pi.
MrRa [10]
Surface area of a sphere (3D solid's name for ball shaped object) is given by

SA = 4 \pi r^{2}

We do not know the radius of the sphere but we can work it out from the circumference 8 \pi

Circumference = 2 \pi r
8 \pi =2 \pi r
r= \frac{8 \pi }{4 \pi }=2

then
SA=4 \pi  (2)^{2} =16 \pi
7 0
3 years ago
2 1/4 + 1 3/4 + 3 1/2=
murzikaleks [220]
The answer is 7 1/2 becasue if you add the whole #s then the fractions you get the answer
7 0
3 years ago
Read 2 more answers
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