could someone help me with this ASAP? thanks !

Answer:

c not all complex are imaginary

but all imaginary are complex

please brainlist

Answer:

C is False

Step-by-step explanation:

A complex number is represented by

[tex]z = a + bi[/tex]

A imaginary number is represented by

[tex]z = bi[/tex]

A complex number could include a real number so it cant be a pure imaginary number so C is False.

Answer:

b the answer is B because

Answer:

$40

Step-by-step explanation:

You have two sweatshirts that cost $30 more the day after.

First, you do [tex]340 -(2*30)[/tex]

Second, you divide what you got above ($280), by 7 and voila, you have $40 per sweatshirt.

Answer:

The sinusoidal function that represent the height of the water level, is presented as follows;

[tex]g(t) = 4 \cdot sin \left(\dfrac{\pi}{6} \cdot t \right)[/tex]

Where;

t = The number of hours since the water height was the average sea level height

The graph of g(t) showing the points where g(t) = The average see level, created with MS Excel is attached

Step-by-step explanation:

Answer:

put a dot on points

(0,0)

(0,6)

(0,12)

Step-by-step explanation:

Answer:

A (First One)

Step-by-step explanation:

Side AC Is Congruent By Side DF

Side CB Is Congruent By Side FE

Side AB Is Congruent By Side DE

(There's no angles shown so it can't be the second option.)

The diagram has lines on the sides, if it we're SAS then the triangle would have an angle.

Answer:

ΔABC≅ΔDEF by SSS Postulate

Step-by-step explanation:

Hi there!

We are given 2 triangles

And we want to prove them congruent

You may notice that AC and FD have the same tick markings, AB and ED have the same tick markings, and CB and FE have the same tick markings

This means that those sides are congruent

In other words,

AC≅FD

AB≅DE

CB≅FE

If we have 3 pairs of congruent sides, that is enough for one concurrency postulate called side-side-side (SSS), which states that if 3 sides of a triangle are congruent to 3 sides in another triangle, then those triangles are congruent

So the triangles are congruent, but we need to put their vertices in the correct order

So if we make the name of the first triangle ABC, then we need to find the corresponding vertices in the second triangle

So let's find those vertices

D is corresponding to A, as they are both in between line segments that have 1 and 2 tick markings on them

E is corresponding to B, as they are both between line segments that have 2 and 3 tick markings on them

And finally, F is corresponding to C, as they are both between line segments that have 1 and 3 tick markings on them

So the name of the second triangle is DEF

ΔABC≅ΔDEF by SSS Posulate

Hope this helps!

Answer:

Step-by-step explanation:

t = 20

CROSS MULTPLICATION !

[tex]\frac{a}{b} = \frac{c}{d}[/tex]

in this situation ab = cd

[tex]\frac{16}{t} = \frac{80}{100}[/tex]

(16)(100) = 80t

1600 = 80t

1600/80 = t

t = 20

Answer:

11

Step-by-step explanation:

11

1

45

35x345 = 30

1

Answer:

x = 25

Step-by-step explanation:

b² + h² = x²

24² + 7² = x²

576 + 49 = x²

625 = x²

√625 = √x²

25 = x

Step-by-step explanation:

x² = 7² + 24²

x² = 49 + 576

x² = 625

x = 25

Answer:

F. 300,000

Step-by-step explanation:

logically, it is decreasing by 1.

Answer:

a = 820, b = 1, c = 2, d = 100

Step-by-step explanation:

Let x represent the length of the iPad Air and y represent the width of the iPad Air. Since the perimeter of an iPad Air is 820 mm, hence:

2(length + breadth) = 820

2(x + y) = 820

2x + 2y = 820               (1)

Also, the length is 100 mm less than twice the  width. Therefore:

x = 2y - 100               (2)

Given that the equations be used to model this situations is:

2x + 2y = a

bx = cy-d

Therefore comparing this model with equation 1 and 2, we get that:

a = 820, b = 1, c = 2, d = 100

Answer:

sin = 1.333333

cos = 0.75

Step-by-step explanation:

a)t=100×I÷PR

b)t=200×51÷340×5 (simplify)

therefore t=8670

thanks Hope It Help

Answer:

read explanation

Step-by-step explanation:

since y=2/5x-3 we substitute x=10 in making it y=2/5*10-3

following PAMDAS we do multiplication first so 2/5*10=4.

so y=4-3 and then we subtract and get y=1. Hope this helps:> if you need more explanation message me. If not give this a heart for helping. Good luck.

Answer:

  210 - 3x

Step-by-step explanation:

Answer:

[tex]f^-^1(f(3.14))=3.14[/tex]

[tex]f(f(-7))=5[/tex]

Step-by-step explanation:

Hi there!

[tex]f^-^1(f(x))=x[/tex]

Therefore,  [tex]f^-^1(f(3.14))=3.14[/tex]

[tex]f(f(-7))[/tex]

The table tells us that f(-7) is equal to -12.

[tex]f(-12)[/tex]

The table also tells us that f(-12) is equal to 5.

[tex]5[/tex]

I hope this helps!

Answer:

100%

Step-by-step explanation:

Since 56/56 employees at the sports shop work part time, that means 100% of them do, or all of them.

Answer:

WRS and VRT are vertical angles

Step-by-step explanation:

Vertical angles are formed by the same lines and share a vertex

WRS and VRT are vertical angles

Answer:

6x^2y+2xy^2

Step-by-step explanation:

5x^2y + (2xy^2 + x^2y).

Combine like terms

6x^2y+2xy^2

[tex]\displaystyle\ \Large \boldsymbol 5\underline{x^2y}+2xy^2+\underline{x^2y}=5x^2y+x^2y+2xy^2=\boxed{6x^2y+2xy^2}[/tex]

Answer:

502.4 m³.

Step-by-step explanation:

Formula: πr²h

4² = 16 x 10 = 160

160 x 3.14 (about π) ≈ 502.4 m³.

Hope this helps.

If there is something wrong, please let me know.

Answer:

160[tex]\pi[/tex] or

500[tex]m^{3}[/tex]

Step-by-step explanation:

[tex]\pi[/tex] x [tex]4^{2}[/tex] x 10 = 160[tex]\pi[/tex] or 500[tex]m^{3}[/tex]

Answer:

Step-by-step explanation:

Remark

The method you would use is

Area of the rectangle

Area = L * W

L = 3 + 14 =  17

W = 6

Area = 6 * 17 =                                       102

Area of Left triangle

H = 6

B = 3

Area = 1/2 * B * H

Area = 1/2 * 3 * 6

Area =                                                    9

Area of the triangle on the right

H = 6

B = 17 - 7 = 10

Area = 1/2 * b * h

Area = 1/2 * 6 * 10 =                             30

Area of the two triangles =                39

Area of the green area = 102 - 39 = 63

Answer:

The dog biscuits are approximately 69% off.

Step-by-step explanation:

(1 - 0.69/2.23) * 100

(223/223 - 69/223) * 100

154/223 * 100 = 69%

Answer:

Step-by-step explanation:

If the mean is 98, then 104 is only standard deviation away. If we are looking for the values less than this, we have the areas under the normal curve of 34%, 34%, 13.5%, 2.35%, .15% which add to 84%, or as a decimal, .84, choice C.

The z-score of the normal distribution P ( x ≤ 104 ) = 0.84

The relationship between a value and the mean of a set of values is expressed numerically by a Z-score. The Z-score is computed using the standard deviations from the mean. A Z-score of zero indicates that the data point's score and the mean score are identical.

The Z-score is calculated using the formula:

z = (x - μ)/σ

where z: standard score

x: observed value

μ: mean of the sample

σ: standard deviation of the sample

Given data ,

Let the z-score of the distribution be z

And , the mean be μ = 98

And , the standard deviation be σ = 6

where z = (x - μ)/σ

So , P ( x ≤ 104 ) = [ P ( x - 98/6 ) ≤ 104 - 98 / 6 ) ]

On further simplification , we get

P ( x ≤ 104 ) = P ( x ≤ 1 )

Using a standard normal distribution table or calculator, we can find that the probability of a z-score less than 1 is approximately 0.8413. Therefore, the probability of x being less than 104 is approximately:

P(x < 104) = P(z < 1) ≈ 0.8413

So there is approximately an 84.13% chance that a value selected at random from this normal distribution will be less than 104

Hence , the probability is 0.84

To learn more about z-score click :

https://brainly.com/question/25638875

#SPJ7

Answer:

3/5 * 3/5 = 9/25 = .36 = 36%

Step-by-step explanation:

Dautienbanchuyenvexophuongtrinhthu1saudothevaophuontrinhthu2,thuchiencacbuoc

chuyenvedoidaularaketquanhe

Answer:

-9

Step-by-step explanation:

the first number

hope it is well understood

Answer:

x=12

Step-by-step explanation:

im not 100% but i think you would get the answer by setting the equations equal to one another.

4x+6=2x+30

2x=24

x=12

Answer:

I would say 26 or 42 but i would o with 26

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

[tex]arccos\left(\frac{18}{20}\right)[/tex] = 25.8

Answer:x=35.6

Step-by-step explanation:

look at the left triangle. I hope you're familiar with SOH, CAH and TOA.

sin 60°=O/(11√7)

so O= (11√7)sin 60°

now look at the triangle on the right.

cos 45=adjacent/x

cos 45=[(11√7)sin60°]/x

therefore, using ur calculator, you'll get x= [(11√7)sin60°]/cos 45

x=35.64407384

Answer:

I think you have a typo in you choices...

y = -4/3 x is the answer...

which is the same as y = - 1 1/3 x

you don't have that choice, "A" and "C" are the same..

I think that one of them is "y = - 1 1/3 x "

y = kx

-12 = k 9

k = -12/9 = -4/3

Step-by-step explanation:

Answer:

The answer for thue would happened to be 2

-1.

Answer:

9/2

Step-by-step explanation: