Simplify the following expression:

4 + √-4 + √-9 + 7

A. 11 + 5i

B. 5 - 11i

C. 11 + √13i

D. 15 + 0i

Simplify The Following Expression: 4 + -4 + -9 + 7 A. 11 + 5i B. 5 - 11i C. 11 + 13i D. 15 + 0i

Answers

Answer 1
The answer is A my guy

Related Questions

Can a triangle have sides with the given lengths?
2 in, 4 in, 6 in

Answers

Answer:

NO

Step-by-step explanation:

Because the sum of the minor sides equals the measure of the major side, it must be less.

2 + 4 = 6

Hope this helps

HELP for (ii)…..how do we find a?

Answers

By using the information given on the graph, we can see that a = 3.

How to find the value of a?

Here we have an exponential of the form:

[tex]y = p*a^x[/tex]

And by looking at the graph, it passes through (0, 4) and (2, 36), so we can write:

[tex]4 = p*a^0\\\\36 = p*a^2[/tex]

From the first equation we get that p = 4, replacing that on the second one we get:

[tex]36 = 4*a^2\\\\36/4 = 9 = a^2\\\\\sqrt{9} = 3 = a[/tex]

So we conclude that a = 3.

If you want to learn more about exponential equations:

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Sophia is 12 years old. Her Uncle Reynald tells her that if she adds 5 to her age, multiplies the sum by 3, and then subtracts 4 from the product, she will find his age. She tells him that his age equals the expression 12 + 5 × 3 − 4 . Is Sophia correct? Choose the correct answers from the drop-down menus. Sophia is Choose... . Her uncle's actual age is Choose... .

Answers

Answer:

Yes, Sophia is correct

Step-by-step explanation:

The expression is correct and if you solve it, you get 23 which should be her uncle's age.

Describe the symmetry if these functions

Answers

Answer:

see the attachment.

i hope this can help you!

Help me pretty please!

Answers

Answer:

g

Step-by-step explanation:

The answer would be G.5

PLEASE HELP ME FOR BRAINLIEST

Answers

Answer: The answer is d

Step-by-step explanation:

4. (1) Solve forx: 13 11 3x+16 65 ​

Answers

Step-by-step explanation:

13113x+1665
_____________________________
Rewrite 13113 as 9 .  1457

Rewrite 1665 as 9 .  185
= 9 .  1457x + 9 .  185
=9(1457x + 185)

what are the zeros of this function? f(x) = 3x^2 + 2x - 8

Answers

Answer:

4/3, -2

Step-by-step explanation:

All of the following are negative examples of how climate change has impacted the Earth EXCEPT...
A. Destruction of coral reefs
B. Extinction risk for animals
C. Longer farming season

Answers

Answer:

C is the answer

Step-by-step explanation:

C. is only saying how farming seasons would be longer and is not an example of how climate change has impacted the Earth.

Answer:

I believe the answer to your question is the third answer (C).

Step-by-step explanation:

The reason why I chose the third answer is because the destruction of coral reefs is bad because multiple organisms in the water rely on them and if it's destroyed there will be a chain reaction with the ecosystem in a bad way. In addition, it is also not an extinction risk for animals because it is also a disadvantage because biodiversity will decrease and that will also cause problems. I believe a longer farming season is the answer because food and other things that farmers have to grow will last for longer periods of time and won't really disrupt anything going on in the ecosystem I think. I hope this helps although it may be wrong. I am not an expert when it comes to this type of stuff.

Find the area of the figure.

Answers

Answer:

Area = 38 ft^2

Step-by-step explanation:

Divide two parts of a rectangle.

Big Rect: A = 10 ft * 3 ft = 30 ft^2

Small Rect: A = 2 ft * 4 ft =8 ft^2

Total Area = 30 + 8 = 38 ft^2

help will mark Brainliest!!​

Answers

Answer:

1/20

Step-by-step explanation:

1/4 = 0.25

0.25 / 5 = 0.05

0.05 as a fraction = 5/100

simplified

5 / 5 = 1

100 / 5 = 20

1/20

Evaluate: [tex]\sqrt{100-36} + 32 - 1[/tex]
Precalculus based question.

Answers

Answer:

39

Step-by-step explanation:

[tex]\sqrt{100-36}+32-1\\\sqrt{64}+31\\8+31\\39[/tex]

Hey there!

√(100 – 36) + 32 – 1

= √(64) + 32 - 1

= 8 + 32 – 1

= 40 – 1

= 39


Therefore, the answer should be: 39



Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

A rectangular fence is to a total perimeter of 200 feet. If the length is twice the width, find the measurements of the length and width of the rectangular fence.

Answers

✪ Question -:

A rectangular fence is to a total perimeter of 200 feet. If the length is twice the width, find the measurements of the length and width of the rectangular fence.

✪ Explanation -:

In this question we are provided with the perimeter of a rectangle fence that is 200 feet. It is also given that the length of the fence is twice its breadth. We are asked to calculate it's dimensions.

First we will form an equation.

Let us assume the breadth as x

Then, length = 2x

It is given that the perimeter is 200 feet.

We know,

[tex] \bull \: \small\boxed{ \rm{ Perimeter_{(rectangle)} = 2(length + breadth)}}[/tex]

Substituting the values we get

[tex] \small\sf{ 200 = 2(2x + x)}[/tex]

Now we will solve this equation and find out the value of x.

[tex] \small\sf{ 200 = 2(2x + x)}[/tex]

[tex] \longmapsto \small\rm{ 200 = 2(3x )}[/tex]

[tex] \longmapsto \small\rm{200 = 6x} [/tex]

[tex] \longmapsto \small\rm{ \dfrac{ \cancel{200} \: \: 33.33}{ \cancel{6}} = x } [/tex]

[tex] \small\sf{x = 33.33} [/tex]

We will substitute the value of x = 33.33.

Length = 2x = 2 × 33.33 = 66.66 feet

Breadth = x = 33.33 feet

Hence the length of the rectangular fence is 66.66 feet and the breadth is 33.33 feet.

Help urgent need this help please

Answers

Answer:

First option is the correct answer

[tex] A(\triangle ABC) =572\: yd^2[/tex]

Step-by-step explanation:

Given scale is: 3 cm = 6 yd [tex] \implies[/tex] 1 cm = 2 yd

Based upon the above scale, we find:

Base of the triangle (AC) = 13 cm = 26 yd

Height of the triangle (h) = 22 cm = 44 yd

[tex] A(\triangle ABC) = \frac{1}{2} * AC*h[/tex]

[tex] \implies A(\triangle ABC) = \frac{1}{2} (26)(44)[/tex]

[tex] \implies A(\triangle ABC) =572\: yd^2[/tex]

x = √2x-1
Simplify each equation. Make sure to check for extraneous solutions

Answers

x= V2 x-1

x-V2 x= -1

x+x = 1/V2

2x = 1/V2

x = 1/2V2

x = V2/4

Ms. Wall will roll a dice. What is

the probability that she will roll an even number?

Answers

Answer:

50%

Step-by-step explanation:

half of the numbers on dice are even

50% because of the sides of dice

The perimeter of a rectangle is 84cm if the width of rectanle is 16 cm Find its lenth.

Answers

To find the perimeter it is 2 X Width + 2 X the length = 84

32+ 2 X the length = 84
2 X the length = 52
Therefore the length is 26cm
26cm long hope this help

.
A jar contains 11 green marbles, 6 red marbles, and 9 blue marbles. A marble is selected at random, not replaced, and then a second marble is selected. What is the probability of selecting a red marble followed by a green marble?

Answers

Answer:

red marbel

[tex] = \frac{3}{13} [/tex]

green marbel

[tex] = \frac{9}{26} [/tex]

Step-by-step explanation:

for the red marbel you first add all the number of balls given and the total is 26 then you take the number of red marbels dividing the total number of all the balls and if you are able to cancel out you can and there you get your answer same applies to the green marbel

The key phrase here is “not replaced”
The probability of choosing red first is 6/26
There are only 25 marbles left!
The probability of now picking green is 11/25.
So P(Red then Green) = 6/26 x 11/25 = 66/650 = 33/325

Please solve with explanation (high points)

Answers

a) Angles ACB in ∆ABC and ECD in ∆EDC are congruent, since they form a vertical angle pair.

Angles ABC and EDC are clearly congruent, since they are both right angles.

The legs AB and ED are parallel, so angles BAC and DEC are congruent alternating interior angles.

Then ∆ABC is similar to ∆CDE by the angle-angle-angle postulate.

b) Because they're similar, corresponding sides occur in a fixed ratio, which tells us that

CD/BC = ED/AB

p/(5 cm) = (4 cm)/(6 cm)

p = 10/3 cm

find x ...............

Answers

In the first circle, x is the radius and also the hypotenuse of a right triangle with legs measuring 9 and 12. So by the Pythagorean theorem,

x² = 9² + 12² = 225 = 15²  ⇒   x = 15

In the second circle, the chords AB and CD have the same length, and each of AP, BP, CP, and DP are radii of the circle and also have the same length. This means ∆ABP and ∆CDP are congruent, so the two labeled angles are also congruent, so x = 54.

In the given right triangle, write all trigonometric ratios ?

Answers

Answer:

see below

Step-by-step explanation:

You will need the hypotenuse   12 ^2 + 9^2 = h^2   h = 15

In a right triangle:

S O H   C A H  T O A

sin s  =   S A H  = Opposite / Hypotenuse =   12/15

cos r = C A H  = Adjacent / Hypotenuse    = 12/ 15

Tan s = T O A =  12 / 9

cos (theta) = cos s  = 9 / 15

Tan r = 9/12

arc cos(theta) = theta = arccos(9/15) = 53.13 degrees

A car salesman has determined the probability of a person purchasing a car with cash is p = 0.08. Which term best describes the probability of this event?

Answers

Correct answer is B. Very Unlikely

Hope this helps :P

Vera needs repairs on her car. The mechanic’s estimate says that he will provide 7.3 hours of labor. His rate is $55 per hour. The total cost of the labor will be

Answers

Answer:

total cost = given hours × rate per hour

Answer:

401.5

Step-by-step explanation:

Hi can you answer theese 4 questions if they are correct I will give you brainily

Answers

Answer:

1. The answer for the first one is 7/8

2. the 1/4 is larger

3. the 1/2 inch tadapole is larger (note: the smaller the number is in fraction, the larger it is. If the number is larger in the bottom, the number in terms of fraction is smaller.

4. 3 inchies(sorry mispelling)

Step-by-step explanation:

3/8(total)+4/8 = 7/8

brainly points pls

This is had can you help me

Answers

Answer:

#9 is 6 #10 is 1 #11 is 7 #12 is 6

Step-by-step explanation:

In terms of the number of marked mountain goats, what is the relative frequency for male goats, female goats, adult goats, and baby goats? Write your answers as simplified fractions.


Elk Mountain Goat Deer Moose
Male 105 71 42 52
Female 120 93 63 34
Adult 173 103 72 58
Baby 52 61 33 28

Answers

Answer:

The answer is below.

Step-by-step explanation:

Elk: Total elk is 225

Males: [tex]\frac{105}{225}=\frac{7}{15}[/tex]Females: [tex]\frac{120}{225}=\frac{8}{15}[/tex]Adults: [tex]\frac{173}{225}[/tex]Baby: [tex]\frac{52}{225}[/tex]

Mountain Goat: Total Goat is 164

Males: [tex]\frac{71}{164}[/tex]Females: [tex]\frac{93}{164}[/tex]Adults: [tex]\frac{103}{164}[/tex]Baby: [tex]\frac{61}{164}[/tex]

Deer: Total Deer is 105

Males: [tex]\frac{42}{105}[/tex]Females: [tex]\frac{63}{105}[/tex]Adults: [tex]\frac{72}{105}[/tex]Baby: [tex]\frac{33}{105}[/tex]

Moose: Total Moose is 86

Males: [tex]\frac{52}{86}=\frac{26}{43}[/tex]Females: [tex]\frac{34}{86}=\frac{17}{43}[/tex]Adults: [tex]\frac{58}{86}=\frac{29}{43}[/tex]Baby: [tex]\frac{28}{86}=\frac{14}{43}[/tex]

Find the slope, if it exists, of the line containing the pair of points (1, -2) and (1, - 4).​

Answers

Answer:

no answer

Step-by-step explanation:

1, -2 ; 1, -4 : -4-2/1-1 = no solution

need help with my aleks

Answers

Answer:

x = 66

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

sum the 3 angles and equate to 180

x + 35 + 79 = 180 , that is

x + 114 = 180 ( subtract 114 from both sides )

x = 66

7. In which step does a mistake first occur? 8÷2+ (3 x 3-2) Step 1: 8÷2 + (3 x 1) Step 2: 8÷2+3 Step 3: 4+3 Step 4: 7​

Answers

Answer: Step 1

A mistake first happens in Step #1. PEMDAS is not followed correctly.

(PEMDAS = parentheses, exponents, multiplication, division, addition, subtraction)

When solving 8÷2+(3x3-2), you first move left to write and solve the problems working through the correct order of operations.  

Correct Steps:

1)  8÷2 + (3x3-2)

2) 4 + (9-2)

3) 4 + 7

4) 4+7 = 11

Use desmos to make one histogram for the time played (minutes) and the # of goals scored.

Answers

The format of the desmos that is used to make one histogram showing the time played (minutes) and the # of goals scored is given in the iimaged attached.

What is histogram?

This is known to be a kind of graphical depiction that helps one to organizes a set of data points into a given ranges.

Note that the desmos given below can be used to make one histogram for the time played (minutes) and the # of goals scored when you follow the example that is given in the image attached. You can attached the  time played and the number of goals by following the image description.

Learn more about histogram  from

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