Multiply (6 + 5i)(4 - 4i)

Answer:

45

Step-by-step explanation:

Answer:

30 + 70 + 2x-10=180

90+2x=180

2x=180-90

x=90/2

x=45

X=45

Hope it helps

Answer:

p=-9

Step-by-step explanation:

11= p-7-3p

you can slove p-3p now which is -2p, then add -7 to both sides.

18=-2p

then divide by -2

p=-9

Answer:

1: b. YZ, see "geometric mean theorem" in Wikipedia

2: a. sin Y = 7.4/10.9 ≈ 0.68,  sine = opposite/hypotenuse

3: c. tan P = 8.5/16 ≈ 0.53, tangent=opposite/adjacent

4: a. AC = 11.7, sine = opposite/hypotenuse, sin(43) = 8/AC

5. KM = 10.68 use Pythagorean Theorem

measure of angle M = 35 degrees, use definition of tangent

measure of angle K = 55 degrees,  M and K are complementary angle

Step-by-step explanation:

i hope this help

The term that completes the equation is YZ.

Option D is the correct answer.

We have,

From the figure,

∆WXY and ∆XYZ

∠WXY = ∠XZY = 90

∠ZYX = ∠XYW (common angle)

∆WXY ≅ ∆XYZ

And,

∆WXY and ∆WXZ

∠WXY = ∠WZX = 90

∠YWX = ∠XWZ (common angle)

∆WXY ≅ ∆WXZ

Now,

From (1) and (2),

∆XYZ ≅ ∆WXZ

This means,

The corresponding sides are proportional.

We can write as,

YZ/XZ = XZ/ZW

XZ² = WZ x YZ

Thus,

The term that completes the equation is YZ.

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Answer:

5m/s^2

Step-by-step explanation:

Acceleration = Change in velocity/time.

= 50 - 10

------------

8

= 40/8

= 5

Answer:

5 m/s²

Step-by-step explanation:

v = 50 m/s

u = 10 m/s

t = 8 s

[tex]a = \frac{v - u}{t} [/tex]

a = (50 - 10) ÷ 8

a = 40 ÷ 8

a = 5 m/s²

Answer:

35%

Step-by-step explanation:

Answer:

option 2

angles B and D are the alternate interior angles

lines DE and AB being parallel lines and and line BC being the transversal

Answer:

The answer is B and D

Step-by-step explanation:

Confirmed

Answer:

314,880

Step-by-step explanation:

If the population decreases by 1.6% per year, this means the population is 98.4% of the population of the previous year. What this means is we can multiply the current population, 320,000, by 98.4/100, as 98.4/100 is equivalent to 98.4%. This gets us 314,880.

Answer:

314880

Step-by-step explanation:

Answer:

2170 words

Step-by-step explanation:

If we are assuming words and minutes are directly proportional to each other, we can say that w (words) = k (constant variable) x t (time in mins).

K is the constant variable, which we must work out to find out any other time. If you rearrange the formula, it shows that k can be calculated by doing w/t. We have a set of values we can use to calculate k which are given in the question. So if we use this formula to calculate k, then:

k= w/t

k= 496/8

k= 62

Now we know the constant variable is 62. So, we go back to our equation but now we must find how many words. We now have our k value and our value for t. So, now we substitute:

w=kt

w= 62 x 35

w= 2170

Answer:

Slope:  

52

y-intercept:  

(

0

,

2

)

x

y

−

1

26

0

0

2

Step-by-step explanation:

sorry my thing is acting weird but try to solve it out ??

Answer:

X=15

Step-by-step explanation:

3/7=x/35

105=7x

7x=105

x=15

Answer:

Y intercept : ( 0 , 25 )

Step-by-step explanation:

Answer:

Step-by-step explanation:

We need to convert function to slope-intrcept form y=mx+b, where:

-0.4x + 0.05y - 1.25 = 0         {multiply both sides by 20}

-8x + y - 25 = 0                    {add (8x+25) to both sides}

y = 8x + 25     ⇒   b = 25

Therefore y-intercept of the line is (0, 25)

Answer:

x = 20°

Step-by-step explanation:

3x - 10° + 5x + 30° = 180° { being co-interior angles }

8x + 20 ° = 180°

8x = 180° - 20°

8x = 160°

x = 160° / 8

x = 20°

Answer:

The equation is 3g= c

Step-by-step explanation:

this is how much 11 gallons will cost 3 x 11= $33

1 gallon costs 3$

2 gallons cost 6$

3 gallons cost 9$

4 gallons cost 12$

5 gallons cost 15$

6 gallons cost 18$

7 gallons cost 21$

8 gallons cost 24$

Answer:

x=16

Step-by-step explanation:

27/45=(2x+7)/(4x+1)

cross multiply

27(4x+1)=45(2x+7)

108x+27=90x+315

108x-90x=315-27

18x=288

x=288/18

x=16

Looking at the image, The triangle shown below are similar. The value for  x is 16.

Note that in the triangle given, the shapes are similar. Therefore:

27/45 = 2x + 7/  4x + 1

3/5 = 2x + 7/  4x + 1

So:

3 (4x + 1) = 5 (2x + 7)

12x + 3 = 10x + 35

12x - 10x = 35-3

2x = 32

x = 32/ 2

x = 16

Therefore, the value of x is 16.

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Answer:

a=26.039, b=58.021, c=42, A=24 degrees, B=115 degrees, C=41 degrees

Step-by-step explanation:

trig

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Arcs in the circle sum to 360°

Answer:

x=8

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

12 out of 24 is 1/2

Answer:

25% of 3030 is 757.5, so basically she is saving 757.5 dollars

Answer:

[tex]\displaystyle y' = -2x^3 + 9x^2 - 2[/tex]

General Formulas and Concepts:    

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Calculus  

Derivatives    

Derivative Notation    

Derivative of a constant is 0    

Basic Power Rule:    

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle y = -\frac{x^4}{2} + 3x^3 - 2x - 12[/tex]

Step 2: Differentiate

Answer:

7x

Step-by-step explanation:

Answer:

178 correct problems

Step-by-step explanation:

turn the percentage into a decimal (0.89) and multiply it by the number of questions

Answer: 178

Step-by-step explanation:

89% x 200. Change percent to decimal by moving the decimal to the left two places.

.89 x 200 = 178

Answer:

its i

Step-by-step explanation:

Square root of the positive value of 1 is either a positive value of 1 or negative value of 1.1 x 1 = 1 and -1 x -1 = 1.