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Liula [17]
3 years ago
8

Please help me, I've been stuck on this problem forever and I need help! Please don't answer with something random to get points

. Answer the question please. I will mark Branliest.
Complete the two-column proof
Given: ∠1 is complementary to ∠2
→BD bisects ∠ADC
Prove: ∠1 is complementary to ∠3

Statement Reason
1. ∠1 is complementary to ∠2 1. ?

2. ? 2. Definition of complementary

3. ? 3. Given

4. ∠2 ≅ ∠3 4. ?

5. m∠2 = m∠3 5. ?

6. ? 6. Substitution property of equality

7. ? 7. ?

Mathematics
1 answer:
vodomira [7]3 years ago
8 0
1. given
2. measure angle 1 plus measure angle 2 equals 90 degrees
3. B D bisects angle A D C
4. definition of angle bisector
5. definition of congruence
6. measure angle 1 is equal to measure angle 3
7. angle 1 is congruent to angle 3
7. definition of congruence
hope that helps
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Mrs. Reed collects shells. Each shell in her collection weighs about 4 ounces. Her collection weighs about 12 pounds in all. Abo
Mariana [72]

Answer:

There are about 48 shells in Mrs. Reeds collection.

Step-by-step explanation:

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4 ounces per shell.

16 x 12 = 192 ounces

192 ounces divided by 4 = 48

8 0
2 years ago
Solve the system of equations by subsitution.<br> b = 4a +2<br> 12a - 3b = -6
Vladimir [108]

Answer:

infinite solution

Step-by-step explanation:

hello

we substitute b = 4a + 2 in the second expression

12a -3*(4a+2) = -6

<=> 12a -12a -6 = -6

<=> -6 = -6

which is always true

so there is infinite solution

hope this helps

5 0
3 years ago
How do i write 2m in a verbal expression?
eduard
2m: "two multiplied by m"
3 0
3 years ago
Read 2 more answers
The half-life of cesium-137 is 30 years. Suppose we have a
VMariaS [17]
(a) If y(t) is the mass (in mg) remaining after t years, then y(t) = y(0) e^{kt}=100e^{kt}.

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(b) y(100) = 100 \cdot 2^{-100/30} \approx \text{9.92 mg}

(c)
100 e^{- (\ln 2)t/30} = 1\ \implies\ -(\ln 2) t / 30 = \ln \frac{1}{100}\ \implies\ \\ \\&#10;t = -30 \frac{\ln 0.01}{\ln 2} \approx \text{199.3 years}
 
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3 years ago
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