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Elan Coil [88]
2 years ago
13

Write the sum of 8x^2 - x + 4 and x - 5 Show all work

Mathematics
1 answer:
tigry1 [53]2 years ago
3 0

okey

you needed the sum or division?

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Find the value of x..........
Leviafan [203]

Answer:

x = 53.5

Step-by-step explanation:

x is one half the difference of the intercepted arcs, that is

x = 0.5(137 - 30) = 0.5 × 107 = 53.5

8 0
3 years ago
Consider the figure.<br> Find AB if BC = 3, BD = 5, and AD = 5.<br><br> AB= ?
blondinia [14]
Answer is 9.5 First find DC by doing the Pythagorean theorem
BC is 3 BD is 5
So 3^2+ DC= 5^2
9+____=25
So DC is 4 cuz 4times 4=16

Now add AD+DC=AC

5+4=9

So BC is 3 the bottom AC is 9
3^2+9^2= 9+81=90 the sq rt of 90 is 9.5
7 0
3 years ago
Read 2 more answers
The school store sells packs of 12 pens for $2.40. Which is NOT a unit rate to describe this sale?
padilas [110]
The answer is D.

120 divided by 24 would not give you the price of ONE pen
7 0
2 years ago
Read 2 more answers
Can someone please help me please
qwelly [4]

Answer:

1) \dfrac{12+\sqrt{-16}}{4}=\dfrac{12+\sqrt{16i^{2}}}{4}\\\\\\=\dfrac{12+4i}{4}=\dfrac{12}{4}+\dfrac{4i}{4}\\\\\\= 3 + i

Real part = 3  & imaginary part = 1

2) 4 + 7i - 8 = 4 -8 + 7i

                   = -4 + 7i

Real part = -4 & imaginary part = 7

3)\dfrac{\sqrt{9}+\sqrt{-4}}{5}=\dfrac{3+\sqrt{4i^{2}}}{5}\\\\\\=\dfrac{3}{5}+\dfrac{2i}{5}\\\\\\Real \ part = \dfrac{3}{5} \ & \ imaginary \ part = \dfrac{2}{5}

4) -2-\sqrt{-25}=-2-\sqrt{25i^{2}}=-2-5i

Real part = -2  & imaginary part = -5

5)\dfrac{15-13i}{3}=\dfrac{15}{3}-\dfrac{13i}{3}\\\\\\Real \ part = \dfrac{15}{3} \ & \ imaginary \ part = \dfrac{-13}{3}

b) 1) 6 + 4i

2) -12+ 5i

3) 5-14i

4 0
2 years ago
Find the slope of the line.
Georgia [21]

Answer:

\displaystyle m=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>

  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-4, -1)

Point (1, 4)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute [SF]:                    \displaystyle m=\frac{4+1}{1+4}
  2. Add:                                     \displaystyle m=\frac{5}{5}
  3. Divide:                                 \displaystyle m=1
4 0
3 years ago
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