Please help! You will get 'Brainliest' if you do.

Answer:

1)

[tex]6x^2=-90\\x^2=-15\\\sqrt{x^2} =\sqrt{-15} \\x=i\sqrt{15} ,-i\sqrt{15}[/tex]

2)

[tex]b^2-4=-2\\b^2=2\\\sqrt{b^2} =\sqrt{2} \\b=\sqrt{2} ,-\sqrt{2}[/tex]

3)

[tex]16x^2-7=-6\\16x^2=1\\x^2=\frac{1}{16} \\\sqrt{x^2} =\sqrt{\frac{1}{16}} \\x=\frac{1}{4} ,-\frac{1}{4}[/tex]

4)

[tex]10p^2+9=239\\10p^2=230\\p^2=23\\\sqrt{p^2} =\sqrt{23} \\p=\sqrt{23},-\sqrt{23}[/tex]

Answer:

x = 12°

Step-by-step explanation:

The measures of the exterior angles of a hexagon are x°, 2x°, 5x°, 6x°, 7x°, and 9x°. Solve for x.

The sum of the exterior angles of a polygon sums up to 360

An hexagon is a 6 - sided polygon

(x + 2x + 5x + 6x + 7x + 9x) = 360

30x = 360

Divide both sides by 30

x = 360 / 30

x = 12

Hence, x = 12°

Answer:

Questions:

#1) one complex solution

#2) two solutions

#3) one complex solution

#4) one solution

Step-by-step explanation:

1) x² = -100;      x = 10i

2) 5x² = 1;         x = ±[tex]\sqrt{1/5}[/tex]

3) 6x² + 6 = 0;    x = i²

4) 7(x² + 6) - 42 = 0;    x = 0

Answer:

yes,please mark me brainlest

Step-by-step explanation:

Answer:

Yes.

Step-by-step explanation:

A negative number is the opposite of it's positive.

Like what that guy said sorry did not mean to disturb

Answer:

8.48cm²

Step-by-step explanation:

area of a sector = [tex]\frac{0\pi r^2\\\\}{360}[/tex]

where 0 = angle measure of sector

and r = radius

we are given the angle measure ( 23° ) and the radius ( 6.5 cm )

so all we have to do is plug in the values into the formula

(Note that the question asks us to use 3.14 for pi)

[tex]A=\frac{23*3.14* 6.5^2\\\\}{360}\\6.5^2 = 45.25\\23*3.14 =72.22\\72.22*45.25 = 3051.295\\\frac{3051.295}{360} =8.47581944[/tex]

so the area of the sector = 8.47581944 cm^2

finally we want to round to the nearest hundredth and we get that the answer is 8.48cm²

Answer:

Step-by-step explanation:

Answer:

160

Step-by-step explanation:

Givens

Let the smaller angle = x

Let the larger angle = 8x

Equation

x + 8x = 180       Combine like terms

Solution

9x = 180             Divide by 9

9x/9 = 180/9

x = 20

Answer

The larger angle = 8 * 20 = 160    

Answer:

Brooklyn earns four more dollars than Anna does each hour.

Step-by-step explanation:

So basically in order to get the amount ech of them recieve you would have to divide. So for Anna's since her least given number is 10 hours you would divide how much she earns (256) by how many hours she has been working (10) and you get 25.6

Now for Brooke she is given only one piece of evidence so you would use that she has been working for 26 hours and earns 769.6. So divide her earning by the hour and get 29.6

Subtract each of the answers (29.6-25.6) and you would get 4

Sorry if it doesn't make sense I was trynna rush and give you the answer

Answer:

Brooklyn earns four more dollars than Anna does each hour.

Step-by-step explanation:

Answer:

$100

Step-by-step explanation:

15÷3=5

20•5=100

Hope this helps

Answer:Translation happens when we move the image without changing anything in it. ...

Rotation is when we rotate the image by a certain degree. ...

Reflection is when we flip the image along a line (the mirror line). ...

Dilation is when the size of an image is increased or decreased without changing its shape.

Answer:

you would have to get a 100 on your fifth test

Step-by-step explanation:

because between your first 4 tests, the average is only 87 something but when you add 100 to that, the average turns to 89.6 which when rounded becomes 90.

Answer:

x=35

Step-by-step explanation:

um.. it’s just a black picture. :>

Answer:

B. product graph

Step-by-step explanation:

Hope it helps

CarryOnLearning

9514 1404 393

Answer:

  1763.01 m³

Step-by-step explanation:

The height of the cylinder will be ...

  h = (18 m)sin(60°) = 9√3 m

The volume of the cylinder is ...

  V = Bh

where B is the area of the end circle.

  B = πr² = π(6 m)² = 36π m²

Then ...

  V = (36π m²)(9√3 m) ≈ 1763.01 m³

The volume of the cylinder is about 1763.01 m³.

Answer:

35 years

Step-by-step explanation:

[tex]\frac{60}{100} = \frac{21}{y}[/tex]

Cross Multiplying:

[tex]21*100 = 2,100\\2,100/60 = 35[/tex]

in persectev i think the answer in bound to be 17/10

Answer:

x=3 y=13

Step-by-step explanation:

now you got x... substitute x value with one of the questions then you get y

-3×3+2y=17

-9+2y=17

2y=17+9

y=26/2

y=13

i hope it's clear this is how elimination method works... this is how i learned.... t☺️❤️

Answer:

A is the correct Answer

Step-by-step explanation:

hope that helps

Answer:

igual es lo mismo

Step-by-step explanation:

hope that help

Answer:34 13

Step-by-step explanation:

ffrff

Answer:

BD = 12.5

Step-by-step explanation:

Full answer in the attachment!!

Given:

The vertices of a rectangle are (6, 3), (−6, 3), (−6, −1), and (6, −1).

To find:

The perimeter of the rectangle.

Solution:

Distance formula:

[tex]d=\sqrt{(x_2-x_1)^2-(y_2-y_1)^2}[/tex]

Let the vertices of a rectangle are A(6, 3), B(−6, 3), C(−6, −1), and D(6, −1).

Using the distance formula, we get

[tex]AB=\sqrt{(-6-6)^2-(3-3)^2}[/tex]

[tex]AB=\sqrt{(-12)^2-(0)^2}[/tex]

[tex]AB=\sqrt{144}[/tex]

[tex]AB=12[/tex]

Similarly,

[tex]BC=\sqrt{\left(-6-\left(-6\right)\right)^2+\left(-1-3\right)^2}=4[/tex]

[tex]CD=\sqrt{\left(6-\left(-6\right)\right)^2+\left(-1-\left(-1\right)\right)^2}=12[/tex]

[tex]AD\sqrt{\left(6-6\right)^2+\left(-1-3\right)^2}=4[/tex]

Now, the perimeter of the rectangle is:

[tex]Perimeter=AB+BC+CD+AD[/tex]

[tex]Perimeter=12+4+12+4[/tex]

[tex]Perimeter=32[/tex]

Therefore, the perimeter of the rectangle is 32 units.

Answer:

7800

Step-by-step explanation: :)

Answer:

Hope It Help

Brainliest please

Answer:

3

Step-by-step explanation:

The unit rate is a rate with 1 in the denominator. The unit rate for this equation would be how much money he makes in one hour. So, to find the unit rate plugin 1 for r and solve for g. One times three (1*3) is equal to 3; therefore, that is the unit rate.

Answer:4.8

Step-by-step explanation:18/3.75=4.8

Answer:

It seems that you are trying to find the length of hair of Florencia on Tuesday.

Given that length of the hair of Florencia on Monday = h centimeters

On Tuesday, she got hair cut.

So new length of the hair of Florencia on Tuesday = 75% of Monday value

= 75% of (h)

= 0.75* (h)

= 0.75h

Hence final answer is the length of the hair of Florencia on Tuesday is ( 0.75h ) centimeters.

Answer:

3/4h and 0.75h

Step-by-step explanation:

khan

Answer:

5 meters per minute

Step-by-step explanation:

300/60 = 5 meters per minute