Simplify the equation.
(-2-5i)(-7+2i)

Answers

Answer 1

Answer:

24+31i

Step-by-step explanation:


Related Questions

Which three test points could be used to draw the graph of the solutions to
x2 + 6x-5> 0?
O A. -3- »14. - 3+ w74, 1
O B. -7,0,1
O C. -6,0,1
O D. -3- 14,0, -3+wV14

Answers

Answer:

(-3,-14); (-3+[tex]\sqrt{14}[/tex],0);  (-3-[tex]\sqrt{14}[/tex], 0); (0,-5)

Step-by-step explanation:

Josh pays 7.59$ for 2.2 pounds of ground Turkey. what is the price per pound of turkey

Answers

Answer:

$3.45 per pound of turkey.

Step-by-step explanation:

$7.59 for 2.2[0] pounds of turkey

x = 1 pound of turkey.

Divide 7.59 ÷ 2.20

$3.45 is your answer.

You could also use a ratio table, but with lots of trial and error!

Hope this helps :)

Answer:

the ans is 3.45$... good luck

15 laps in 3 days = laps per day

Answers

Answer: The answer is 5 laps per day

Step-by-step explanation: Just do 15 divided by 3 because if they are asking for laps per day and there are 15 laps in 3 days. You just divide 15 days by 3 days to get how many laps are in per day. And you'll get 5.

Line x and line z are straight lines.

Lines x, z, and y intersect to form 5 angles. From top left, clockwise, the angles are: a: right angle, b, c, d, e.

Which pair of angles are vertical?
Angle a and Angle d
Angle b and Angle d
Angle a and Angle b
Angle c and Angle e

78 points if you answer

Answers

Answer:

it is C and E

hope it helps

Answer:

Thepersin above me is correct

Step-by-step explanation:

A half-marathon is 13.1 miles long. There is a water station every 1 11/20 miles along the race trail. Which expression represents the total number of water stations?

A) 13.1 - 1 11/120
B) 13.1 + 1 11/120
C) 13.1 (1 11/120)
D) 13.1 ÷ 1 11/120

Answers

Answer:

The answer is D

Which is the same function-3x+7=y

Answers

The answer is f(x)=-3x+7

Answer:

Step-by-step explanation:

10 is 20% of what i can't figure this out​

Answers

Answer:

50

Step-by-step explanation:

if the given amount (20%) is 10 then to find the whole :

multiply 10 with 100 and then divide the result with 20

10*100/20 = 50

Someone help? The covered word is 'numerator'. ​

Answers

Hello XxItzYourLifexX!

[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]

Find the required fraction.

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

Let's take the fraction as x/y , where x = numerator & y = denominator.

Given,

1st condition :-

[tex] \rightarrow \frac{x + 1}{y - 1} = 1 \: \: \: \: \: \: \: \: \: - - (1) \\ [/tex]

2nd condition :-

[tex] \rightarrow \frac{x}{y + 1} = \frac{1}{2}\: \: \: \: \: \: \: \: \: - - (2) \\ [/tex]

__________________

Now, let's take eq. (2) & find the value of x using cross multiplication.

[tex] \frac{x}{y + 1} = \frac{1}{2} \\ 2x = 1(y + 1) \\ 2x = y + 1 \\ x = \frac{y + 1}{2} [/tex]

We got x as y+1/2. Now, let's substitute this value of x in eq. (1) & solve it using cross multiplication.

[tex] \frac{x + 1}{y - 1} = 1 \\ \frac{ \frac{y + 1}{2} + 1 }{y - 1} = 1 \\ \frac{ \frac{y + 1}{2} + 1}{y - 1} = \frac{1}{1} \\ \frac{y + 1}{2} + 1 = y - 1 \\ \frac{y + 3}{2} = y - 1 \\ y + 3 = 2(y - 1) \\ y + 3 = 2y - 2 \\ y - 2y = - 2 - 3 \\ - y = - 5 \\ \boxed{ y = 5}[/tex]

The value of y is 5. Now, let's find x. (x = y+1/2)

[tex]x = \frac{y + 1}{2} \\ x = \frac{5 + 1}{2} \\ x = \frac{6}{2} \\ \boxed{x = 3}[/tex]

So, the values of x & y respectively are 3 & 5. Now, the required fraction will come in the form of x/y. So, the fraction is...

[tex] \frac{x}{y} \\ = \large\boxed{\boxed{ \bf\frac{3}{5} }}[/tex]

The correct answer is 3/5 (option b).

__________________

Hope it'll help you!

ℓu¢αzz ッ

a seed spouted and grew 2/3 of a foot in 3 months. what was its rate of growth

Answers

Answer:

0.2222 of growth in a month

Step-by-step explanation:

2/3feet / 3 months

Answer:

The rate of growth of sprout seed in 3 months is 1.14%

Step-by-step explanation:

Given as:

The length of seed sprout grew =  foot

The time period for sprout grew = 3 month

Let The rate of sprout grew = r%

Let The initial length of seed = l foot

So, The length of seed sprout grew after 3 months =   × l foot

Now, According to question

The length of seed sprout grew after n months =  

Or ,   × l  =  

Or,  =  

Or, 1 +  =  

Or,  = 1.14

∴ r = 1.14 ×100 = 114

So, The rate of growth = r = 1.14 %

Hence The rate of growth of sprout seed in 3 months is 1.14%

triangle angle- sum theorem
help!!!

Answers

9514 1404 393

Answer:

  s = 2°

Step-by-step explanation:

The triangle sum theorem tells you the sum of angles in a triangle is 180°. This fact can be used to write an equation that can be solved for s.

  s +38° +34s +72° = 180°

  35s = 70° . . . . . . . . . . . . . subtract 110°

  s = 2° . . . . . . . . . . . . . divide by 35

_____

Check

The triangle angle measures are (s+38°) = 40°, 34s = 68°, and 72°. These total 180°, as they should.

David is twice as old as Abby. If a represents Abby’s age, which expression represents David's age?

A) 3 + a
B) 2 + a
C) 2a
D) 3a

Answers

2a

Hope this helps!! :)

I NEED HELP PLS...ASAP
Which equation represents this sentence?
3 times the difference of 6 and a number is equal to 15


3x−6=15

3(6−x)=15

6−3x=15

3(x−6)=15

Answers

Answer:

3(6-x)=15

Step-by-step explanation:

You move right 1 unit and left 7 units. You end at (-5, -1). Where did you start?

Answers

Answer:

you started at (-5, 4)

Step-by-step explanation:

do what the instructions given said but in reverse. so move up 7 units and move back down 1 unit and you will find where you started.

which of these is the correct answer?

Answers

Answer:

2 11/12 Square feet

Step-by-step explanation:

What we do is convert the mixed numbers into improper fractions

2 x 2 + 1 = 5

1 x 6 + 1 = 7

our new fractions are 5/2 and 7/6

find the least common denominators LDC

new fractions 15/6 and 7/6

multiply 15/6 x 7/6= 35/12

simplify into mixed number =  2 11/12

54,392 rounded to the tens place

Answers

Answer:

54,390

Step-by-step explanation:

Answer:

54, 390

Step-by-step explanation:

What is 54,392 close to? 90 or 100? (In this case, 54,300)

92 is closer to 90.

I hope this helped at all.

NO LINKS!!!!!!
Write in graphing form x^2 + 10x + y^2 - 6y = 2

Answers

9514 1404 393

Answer:

  (x +5)^2 +(y -3)^2 = 36

Step-by-step explanation:

Add the squares of half the linear term coefficients, then rewrite using squares. You get the standard form equation of a circle.

  x^2 +10x +y^2 -6y = 2

  (x^2 +10x +5^2) +(y^2 -6x +(-3)^2) = 2 +5^2 +(-3)^

  (x +5)^2 +(y -3)^2 = 36 . . . . . circle centered at (-5, 3) with radius 6

Need help Solve: 4ln(3x) = 20

Answers

Answer:

e5/3

Step-by-step explanation:

In 5 - 7 complete sentences, answer all of the following question. •Use this image to respond to the following prompt: •Is the slope of this line positive or negative? How do you know? •What is the y-intercept of this line? How did you find it? •What is the slope of this line? How did you find it?

Answers

     The line is positive because it is going upwards. The y-intercept is positive 3. It can be found by seeing where the line intercepts the y-axis. The slope of the line is 2 and it can be found by using "rise over run."

(I saw the image on another question you had asked. Have a nice day!)

Florida Company (FC) and Minnesota Company (MC) are both service companies. Their stock returns for the past three years were as follows: FC: −5 percent, 15 percent, 20 percent; MC: 8 percent, 8 percent, 20 percent. Calculate the mean return for each company.

Answers

Using the mean concept, it is found that:

The mean return for Florida Company is 10%.The mean return for Minnesota Company is 12%.

The mean of a data-set is given by the sum of all observations divided by the number of observations.

For Florida Company(FC):

3 returns, of -5%, 15% and 20%.

Thus, the mean is:

[tex]M = \frac{-5 + 15 + 20}{3} = \frac{30}{3} = 10[/tex]

The mean return for Florida Company is 10%.

For Minnesota Company(MC):

3 returns, of 8%, 8% and 20%.

Thus, the mean is:

[tex]M = \frac{8 + 8 + 20}{3} = \frac{36}{3} = 12[/tex]

The mean return for Minnesota Company is 12%.

A similar problem is given at https://brainly.com/question/13451786

Remember the definition of csc(x).

To graph y = csc-1(x) on the calculator, which expression should be typed in the calculator

Answers

If there's no built-in function for csc⁻¹, you can use the identity

csc⁻¹(x) = sin⁻¹(1/x)

which works because if we replace x = csc(y), for instance, we end up with

csc⁻¹(csc(y)) = sin⁻¹(1/csc(y))

and over an appropriate interval, the left side reduces to y, while 1/csc(y) = sin(y) so that the right side also reduces to sin⁻¹(sin(y)) = y.

Answer:

it is c - y = sin -1 (1/x)

Step-by-step explanation:

EDGE whatever the year


Write the equation (in factored form) given the following conditions:

vertical asymptotes x= 2, x = -17;

horizontal asymptote y = 6

Answers

x=2,x=-17

[tex]\\ \sf\longmapsto y=\dfrac{(x+2)}{(x+2)(x-17)}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x(x-17)+2(x-17)}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x^2-17x+2x-34}[/tex]

[tex]\\ \sf\longmapsto y=\dfrac{x+2}{x^2-15x-34}[/tex]

y=6

[tex]\\ \sf\longmapsto 6=\dfrac{x+2}{x^2-15x-34}[/tex]

[tex]\\ \sf\longmapsto 6(x^2-15x-34)-x-2=0[/tex]

[tex]\\ \sf\longmapsto 6x^2-90x-204-x-2=0[/tex]

[tex]\\ \sf\longmapsto 6x^2-91x-206=0[/tex]

Done

>> Answer

_________

[tex]\:[/tex]

Answer in the picture.

What is the first step in order to solve the following equation: 5(x - 4) + 2 = 15

Answers

You distribute 5 to x and -4 then leave the rest of the equation the same- the equation should then look like… 5x-20+2=15

Math look at picture

Answers

27 because adding then divideing

Answer is 27 simple

Please help me!!!!! Show your work 45-45-90 method <3

Answers

Answer:

hope it helps and u understand

check the steps in picture attached

how do you write 7% in the most simple fraction​

Answers

A percent is a fraction out of 100; it tells us exactly how much out of 100 something is.

Therefore, 7/100 is 7%

what is 9.7 times 8.6

Answers

Answer:

83.42

Step-by-step explanation:

Answer:

83.42

Step-by-step explanation:

x = 9.7 x 8.6

= 83.42

You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 99% confident that you estimate is within 4% of the true population proportion. How large of a sample size is required?

Show your work please I don't understand this

Answers

Given that,

\hat p= 0.5 ( assume 0.5)

1 - \hat p = 1 - 0.5= 0.5

margin of error = E = 4% = 0.04

At 95% confidence level the z is ,

\alpha = 1 - 95% = 1 - 0.95 = 0.05

\alpha / 2 = 0.05 / 2 = 0.025

Z\alpha/2 = Z0.025 = 1.960 ( Using z table )

Sample size = n = (Z\alpha/2 / E)2 * \hat p * (1 - \hat p )

= (1.960 / 0.04)2 * 0.5 * 0.5

= 600.25

Sample size =601

The point (3, 6/5) lies on the graph reprrsenting a proportional relatiomship which of the folowimg point also lie on the graph

Answers

Answer:

A=0.4

B=0.4

D=0.4

Because they are all the same

Step-by-step explanation:

Find the perimeter and area of the following parallelogram.

Answers

Answer:

hope this helps

check the picture attached for steps

The teachers bag weighs 5 pounds. How many ounces does his bag weigh?

Answers

Answer:

80.00

Step-by-step explanation:

His Bags weighs 80.00 in Ounces

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