Rosemarie made a necklace from materials that cost $30. She is going to sell the necklace to Betty at 390% of this cost. About how much should Betty pay for the necklace?
А
$12,000
B
S1,200
C$120
DS12

Answer:

The answer is 1/6

Step-by-step explanation:

3/8 x 4/9 = top times top and bottom times bottom

12/72 = 1/6

Answer:

1/6

Step-by-step explanation:

3x4=12

8x9=72

12 divided by 6 equals 2

72 divided by 6 equals 12

2 divided by 2 equals 1

12 divided by 2 equals 6

Final simplififed answer is 1/6.

Hope this helps you out.

Step-by-step explanation:

What is the total magnification if we using objective lens 4x and our eyepiece (ocular) lens is 10x

40x

100x

400x

1000x

Answer:

Simplify: (4x2 - 2x) - (-5x2 - 8x).

Solution:

(4x2 - 2x) - (-5x2 - 8x)

= 4x2 - 2x + 5x2 + 8x.

= 4x2 + 5x2 - 2x + 8x.

= 9x2 + 6x.

= 3x(3x + 2).

Answer: 3x(3x + 2)

Step-by-step explanation:

Hope it help

Mar, me as brainliest

Answer:

1111600                   lol

Step-by-step explanation:

Answer:

a.  90 degrees (given)

b. 270 degrees (360-90)

c. 16π  (Circumference= diameter * π, diameter= 2r= 2(8)=16, so c= 16*π)

d. 4π (That section is a semicircle, so length should be 1/4 the circumference)

e. 12π (This section is 3/4 the circumference)

f. 64π (Area= πr^2, and r^2= 8^2= 64, so 64π)

g. 16π (That section is 1/4 the area)

Answer:

9/5

Step-by-step explanation:

What I do is look at the bottom number and add that to the top number how ever many time the whole number is.

The mixed number to the equation would be 9/5

Step-by-step explanation:

x2-x-12<0

x2-x<12

x=12

Answer: Yes.

Step-by-step explanation:

5 • 2 • 4 = 40

Answer:

i need help too

Step-by-step explanation:

Answer: a= 120

Step-by-step explanation:A = height times width, 10 times 12 is 120 :)

Answer:

x-10=y

Step-by-step explanation:

the output (y) is 10 less ( -10) than the input (x)

Answer:

Answer is 1/2,-1 1/2

Step-by-step explanation:

The coordinates of the best location that will be equidistant from all three schools is; (-0.085, -2.232).

The circumcenter of a triangle is defined as the point where the perpendicular bisectors of the sides of that particular triangle intersect. In other words, the point of concurrency of the bisector of the sides of a triangle is called the circumcenter.

The coordinates of the 3 points that form a triangle attached in the image are;

A(-4, -2), B(0, 3), C(5, -1)

Since the distances to the circumcenter O from the vertices are all equal.

Then; AO = BO = CO.

From the first equality, we have AO² = BO²

(x + 4)² + (y + 2)² = (x - 0)² + (y - 3)²

⇒ 8x + 16 + 4y + 16 = – 6y + 9

⇒ 8x + 10y = -23   ---(1)

​Similarly, from the second equality, we have BO² = CO²

(x - 0)² + (y - 3)² = (x - 5)² + (y + 1)²

⇒ – 6y + 9 = -10x + 25 + 2y + 1

⇒ 10x - 8y = 17   ----(2)

Solving eq 1 and 2 simultaneously gives;

x = -0.085

y = -2.232

Therefore, the coordinates of the best location that will be equidistant from all three schools is; (-0.085, -2.232).

Learn more about the circumcenter of a triangle here:

https://brainly.com/question/16276899.

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Answer:

The answer is 9 rolls.

Step-by-step explanation:

you do 80% of 15. Then you have the number of players that got taped. Now you multiply 0.75 by 12 players.

Please mark me brainliest,5stars, and a thanks! Have a good day!

Answer:

the answer is 2.87

Step-by-step explanation:

use the pythagorean theorem

2^2+b^2=4^2

that goes to b= 3.5

for the triangle with x you also need to use the pythagorean theorem

[tex]2^{2}[/tex]+[tex]x^{2}[/tex]=[tex]3.5^{2}[/tex]

4+[tex]x^{2}[/tex]=12.25

subtract 4 on both sides

[tex]x^{2}[/tex]=8.25

[tex]\sqrt{x}[/tex]=[tex]\sqrt{8.25}[/tex]

x=2.87

Answer:

D

Step-by-step explanation:

When you say "and" its representing a decimal it also ends in the thousandTHS

Answer:

two and sixty three thoundths

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

20:15 the ratio can be turned to a fraction

20/15

simplify

4/3

so now add the numerator and the denominator and get 7

then do 105/7=15

and then you do

4x15=60 (Destroyers)

3x15=45 (Battleships)

45 is your answer

The point (-8, -3) is reflected on x-axis, we have (-8, 3) and the point is reflected on y-axis, we have (8, -3). Therefore, options A and E are the correct answers.

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the x-axis is (x, -y).

The given coordinate point A is (-8, -3).

Reflection on x-axis, we get

(-8, -3)→(-8, 3)

The reflection of point (x, y) across the y-axis is (-x, y).

Reflection on y-axis, we get

(-8, -3)→(8, -3)

Therefore, options A and E are the correct answers.

To learn more about the reflection over x-axis visit:

https://brainly.com/question/15175017.

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Answer:

yes

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

Answer:

How is genetic information passed from parents to offspring in humans?

But when people talk about genes being passed on, they generally don't mean genes being passed on from cell to cell during cell division. Instead, they usually mean genes being passed on from parents to children. This is known as "heredity" or "inherited genes."

Step-by-step explanation:

Answer:

I beleive all regular n-gon's exterior angles add up to 360

Step-by-step explanation:

Answer:

x = 10 so D

Step-by-step explanation:

-4 + x = 6

add 4 both sides to get the x by itself

so 4 + 6 = 10

then the final answer is  x = 10

Answer:

You have a negative 4 being added to the variable. To solve you need to use the opposite operation (what is the opposite of addition?)

For example:

7 = -3 + h

Subtraction -3 from each side.

7 -(-3) = -3- (-3) + h

10 = h

Step-by-step explanation:

Answer:45%

Step-by-step explanation:

Answer:

Step-by-step explanation:

23

Answer:

4125

Step-by-step explanation:

hope u have a good day

Answer: the daughter is 15 and the dad is 40

i think unless my math is wrong

Step-by-step explanation:

Step-by-step explanation:

____2__divisible by both 2 and 5

Answer:

Figure B

Have a good day

Answer:

6

8

,

9

12

,

12

16

Step-by-step explanation:

Answer:

ANSWER

Step-by-step explanation:

Answer:

what is the question above what you are showing in the picture ?

Step-by-step explanation:

it will help a lot