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Elina [12.6K]
3 years ago
7

Hey please help show work fast

Mathematics
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

No solution

Step-by-step explanation:

Because BDC is 20, and DC = DB, DBC is also 20 degrees. ABD would then be 160 since DBC and ABD has to equal 180. You know ADB is 35 so 160 + 25 + x has to equal 180. But 160 + 25 is already 185, and x can't be negative, so no solution.

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Forty students are In Science club. Of those 45% are girls. This percent increase 56% after new girls join the club. How many ne
stepan [7]
45% of 40 is 0.45×40=18 girls
if x girls join then 56% of 40+x is 0.56(40+x)=18+x
22.4+0.56x=18+x
put together like terms
4.4=0.44x
<span>x=10 girls joined</span>
8 0
4 years ago
What are the coordinates of the point that is one half the distance between A(−3, −5) and B(2, 7)?
Olenka [21]

Answer:

(\frac{-1}{2},1)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Midpoint Formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Step-by-step explanation:

<u>Step 1: Define</u>

A (-3, -5)

B (2, 7)

<u>Step 2: Find midpoint</u>

  1. Substitute:                    (\frac{-3+2}{2},\frac{-5+7}{2})
  2. Add:                              (\frac{-1}{2},\frac{2}{2})
  3. Divide:                          (\frac{-1}{2},1)
3 0
3 years ago
1/2x 3/4=1/2X -2/3<br> ayudaaaaaaaaaaaaaaaaaaaa
Elodia [21]

1/2 or 0.5 x 3/4 or 0.75 = 0.375 or 3/8

the rest I dont' understand what you wrote, is it a subtraction or a negative?

6 0
3 years ago
A town has 30,000 registered voters of whom 12,000 are Democrats. A survey organization takes a random sample of 1,000 voters of
kodGreya [7K]

Answer:

1.  b

2.d

3.a

4.e

5.c

Step-by-step explanation:

4 0
3 years ago
What property of a regular hexagon makes this construction correct
Viktor [21]
Where’s the picture or more context lol
5 0
3 years ago
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