I'm guessing you mean (6/7)x+(1/2)=7/8
Subtract 1/2 (also 4/8) from both sides: (6/7)x=3/8
Divide both sides by 6/7: x=21/48=7/16
So x is 7/16
Hope this helped!
The only thing you need to solve this task is to know the p<span>ercent error formula:
</span> (theoretical value-experimental value): theoretical value)) * 100
Your theoretical value is 279, as it is the value that you know<span>, and the experimental -250 is your calculated value.
</span>279-250/279
29/250
0.116*100
11.6%
Then you can recheck everything:
250*0.116=29
<span>250+29=279</span><span>
</span>
Answer:
3rd one
4th one
5th one
8th one
Step-by-step explanation:
solve for the y intercept by plugging in f(0)
0²-4(0)-21= -21
Therefore (0,-21) is a y intercept
Factor to find the x intercepts
(x+3)(x-7)
Therefore the intercepts are
(-3,0) (7,0)
THis function has a positive coeficcent and an even degree
therefore as x approaches infinity it's infinity
and as x approaches negative infinity it's infinity
Answer:
206.40
Step-by-step explanation:
172.00 + (1/5 =20%)(34.40)= 206.40
Answer:
The area of the figure is 7.5 
.
Step-by-step explanation:
In order to make the calculation process easier, you can cut the shape into a trapezoid and a triangle. The triangle's base has a length of 3 units and a height of 2 units, so its area is 3 . The top base of the trapezoid has a length of 1 unit, the bottom base of the trapezoid has a length of 2 units, and the trapezoid has a height of 3 units, so the area of the trapezoid is 4.5 units. To find the area of the shape, add the areas of the trapezoid and the triangle together, which is 3 + 4 .5 = 7.5
