PLEASE HELP could this be 110, maybe?? I've tried both 40 and 100 already.
Answers
Answer:
80°
Step-by-step explanation:
<A+<B+<C=180
30+<B+70=180
100+<B=180
<B=180-100
= 80
consider triangle ABC and triangle EDC
AC=CE (given
BC=CD (given
<ACB=<ECD (vertically opposite angles are equal)
therefore triangle ABC is congruent to triangle EDC
<B=<D (CPCT)
The answer is 80
The two triangles are the same.
Corresponding angles of congruent triangles are equal.
A triangle's three angles add up to 180 degrees.
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Use these decimals to answer the questions:
–6.2, 5.71, –3.96, 2.84
Write a rule about changing the order of the numbers in adding and in subtracting positive and negative decimals.
Answers
a + b = b + a
a - b ≠ b -a
a - b = -b + a
For example:
5.71 + 2.84 = 2.84 + 5.71
8.55 = 8.55
5.71 - 2.84 ≠ 2.84 - 5.71
2.87 ≠ -2.87
5.71 - 2.84 = -2.84 + 5.71
2.87 = 2.87
These are the rules for when a and b are negative numbers.
a + b = b + a
a - b = b + a
For example,
-6.2 + (-3.96) = -3.96 + (-6.2)
-6.2 - 3.96 = -3.96 - 6.2
-10.16 = -10.16
-6.2 - (3.96) = -3.96 + (-6.2)
-10.16 = -10.16
Also, if a is a positive number, while b is a negative number, we see these rules:
a + b = a - b
a - b = a + b
For example,
5.71 + (-6.2) = 5.71 - 6.2
-0.49 = -0.49
5.71 - (-6.2) = 5.71 + 6.2
11.91 = 11.91
Also, if a is a negative number while b is a positive number, then these rules will apply:
a + b = b - a
a - b = -b - a
For example,
-3.96 + 2.84 = 2.84 - 3.96
-1.12 = -1.12
-3.96 - 2.84 = -2.84 - 3.96
-6.8 = -6.8
I hope this helps! :)
Answers
Answer:
60 miles/per hour
Step-by-step explanation:
360 miles in 6 hours means 360/6 (m/h)
= 60/1 (m/h)
= 60 miles/per hour
Hope this helped :3
360/6=60 miles per hour
Answers
Answer:
Two solutions were found :
x =(2-√44)/4=(1-√ 11 )/2= -1.158
x =(2+√44)/4=(1+√ 11 )/2= 2.158
Step-by-step explanation:
Mark me as brainliest pls :)
~Alex
Answer:
x=-3
Step-by-step explanation:
Given: 2(x+1)=3x+5
Distributive Property: 2x+2=3x+5
Subtract 2x on both sides: 2=x+5
Subtract both sides by 5: x=-3
Therefore, x=-3
Answers
Answers