Answer:
x³ + 5x² + 5x - 2
Step-by-step explanation:
Combine like terms.
x³ + 3x² − x + 2x² + 6x − 2 =
= x³ + 5x² + 5x - 2
Answer:
304 brass connectors.
Step-by-step explanation:
We have been given that a box filled with brass connectors weighs 5 pounds 4 ounces. The box weighs 8 ounces when empty, and each connector weighs 0.25 ounces.
Since we know that 1 pound equals to 16 ounces.Let us convert weight of box filled with brass connectors from pounds to ounces.
Now we will find weight of brass connectors by subtracting weight of empty box from weight of filled box.
Let us divide 76 by 0.25 to find number of brass connectors in the box.
Therefore, there are 304 connectors in the box.
Answer:
h(t)=-16t^2+375t
Step-by-step explanation:
From the given information, we get the value of ABC = 120°.
<h3>How to estimate the value of ABC?</h3>
Given: In the figure, O exists the center of the circle and OABC exists as a parallelogram.
Now, the radius of the circle exists
OA = OB = OC
Opposite sides of a parallelogram are equal
AB = OC and OA = BC
In ∆OAB,
OA = OB = AB and,
In ∆OCB,
OC = OB = BC
Therefore, ∆OAB and ∆OCB exist in equilateral triangles.
All angles of an equilateral triangle are equivalent to 60°.
Hence, ∠ABC = ∠OBA + ∠OBC
∠ABC = 60° + 60°
∠ABC = 120°
Therefore, the value of ∠ABC = 120°.
To learn more about parallelogram refer to:
brainly.com/question/24291122
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You need to see what you need to convert and how you need to convert it, do you need to divide to find out how many it goes in? Questions like that.