3 years ago

Please help me get this done. due at 11:59 tonight

Mathematics

1 answer:

kakasveta [241]3 years ago

6 0

Answer:

m∠C = 30°

Step-by-step explanation:

If ΔADB is an equilateral, then m∠A = m∠ADB = m∠DBA = 60°

If ΔDBC isosceles with DB ≅ BC, then m∠C = m∠BDC ;

m∠C + m∠BDC = m∠DBA = 60° ⇒ m∠C = 30°

You might be interested in

The line of symmetry of the parabola whose equation is y = ax^2 -4x + 3 is

alex41 [277]

Answer:

B. -1

Step-by-step explanation:

If we have a parabola whose equation is:

$y=ax^{2} +bx+c$

The line of symmetry is calculated as:

$x=\frac{-b}{2a}$

Now, we have the equation $y=ax^{2}-4x+3$ and the line of symmetry is $x=-2$

Where:

$b=-4\\c=3$

So, we can replace $b$ by -4 and $x$ by -2 and solve for $a$ using the following equation as:

$x=\frac{-b}{2a}\\-2=\frac{-(-4)}{2a}\\-2(2)a=4\\-4a=4\\a=-1$

It means that the equation of the parabola is equal to:

$y=-1x^{2}-4x+3$

7 0

3 years ago

Steve bought 7 boxes of pencils. Each Box contained 9 pencils. He wants to give each of his 6

Anton [14]

Answer:

Step-by-step explanation:

7*9=63

63/6= 10 remainder 3

Therefore each friend gets 10 boxes of pencils and Steve gets the leftover 3 boxes of pencils

8 0

3 years ago

There were six sisters, every sister has one brother, how many brothers are there in total

jonny [76]

There is 1 brother as they would all have the same brother.

3 0

3 years ago

Read 2 more answers

BRAINLIEST Look at the pattern and decide what number comes next. 2 7 3 8 4 9 5 ?

baherus [9]

Answer:

Step-by-step explanation:

2 + 5 = 7

3 + 5 = 8

4 + 5 = 9

5 + 5 = 10

4 0

3 years ago

Read 2 more answers

Anyone know these answers

qaws [65]

Answer:

Step-by-step explanation:

8 0

3 years ago