The base is 3+(x), altitude is x so substitute. Now we know the area of a triangle is base X height X 1/2. Substitute again! 1/2 (3+x)(x)=35. Multiply both sides by 2 to cancel out the 1/2. Now you have (x)(x+3)=70 and you have to foil out the left side x^2+3x=70. Subtract 70 on both sides x^2+3x-70=0. Find two numbers that multiply to -70 and add to 3. Solve (x+10)(x-7)=0. the x value is 7. since you can't have negative length values. Substitute 7 into 3+x for the base so you know the base is 10 and the height is 7.
Answer:
-0.01851851851
Step-by-step explanation:
The Bruce must include X and Z in his report.
We have given the data on four electric circuits listed in the table
For w :
Voltage, V=18\ V
resistance, 
<h3>What is the formula for ohm's low?</h3>
The formula of Ohm's low is V=IR
I=0.47
So charge,q=It
q=3.76\ C
For x :
Voltage, V=24\ V
so, V=IR...(Ohm's low)
I=0.705
So charge,q=It
q=5.64\ C
For y :
Voltage, V=34\ V
resistance, 
so, V=IR.......(Ohm's low)
I=0.485
So charge,q=It
q=3.88\ C
For z :
Voltage, V=12\ V
resistance, 
so, V=IR......(Ohm's low)
I=0.66
So charge,q=It
q=5.28\ C
Therefore, the circuits X and Z deliver 5.64 C and 5.28 C of charge.
Hence, Bruce must include X and Z in his report.
To learn more about the electric circuit visit:
brainly.com/question/2969220
For the given numbers, the lowest bound : 41.66. the upper bound: 42.19
<h3>How are upper and lower boundaries discovered?</h3>
To determine a rounded number's upper and lower bounds: Determine the place value of the claimed level of accuracy. By two, multiply this place value. Find the upper bound by adding this amount to the provided value, and the lower bound by deducting this amount from the given value.
The lower: a=49.35. b=7.69
so the lower bounds is:
a-b=49,35-7.69 =41.66 = a=49.49.34.
b=755 the upper = a= So the upper bounds is = a-b= 42.79.
To learn more about upper and lower bound from given link
brainly.com/question/19089853
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The bets answer that could go into 81 and 16 would be 1
