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3 years ago

Find the retail price of each item. Round to two decimal places when necessary.

Mathematics

2 answers:

kifflom [539]3 years ago

5 0

Answer:I forgot how to do that one but I had it

Step-by-step explanation:I’m sorry

ch4aika [34]3 years ago

3 0

Answer:

Step-by-step explanation:

Question

Find the retail price of each item. Round to two decimal places when necessary.

Cost of oil change: $18.00

Markup: 70%

Retail price: $_____________________________

PLEASE HELP!!

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Line JM intersects line GK at point N Which statements are true about the figure? Check all that apply.

Likurg_2 [28]

we know that

Complementary angles are two angles whose sum is equal to $90$ °, while supplementary angles are two angles whose sum is equal to $180$ °.

Statements

case 1) GNJ is complementary to JNK

Is False

Angle GNJ is $90$ degrees and angle JNK is $90$ degrees. The sum of the angles GNJ and JNK is $180$ degrees. Therefore, GNJ is not complemetary to JNK.

$angle\ GNJ+angle\ JNK=180\ degrees$

GNJ is supplementary to JNK, not complementary

case 2) MNL is complementary to KNL

Is True

The sum of angles MNL and KNL is MNK which is $90$ degrees. Therefore, MNL is complementary to GNJ.

$angle\ MNL+angle\ KNL=90\ degrees$

MNL is complementary to KNL

case 3) MNG is complementary to GNJ

Is False

Angle MNG is $90$ degrees and angle GNJ is $90$ degrees. The sum of the angles MNG and GNJ is $180$ degrees. Therefore, MNG is not complemetary to GNJ.

$angle\ MNG+angle\ GNJ=180\ degrees$

MNG is supplementary to GNJ, not complementary

case 4) KNJ is supplementary to MNL

Is False

Angle KNJ is $90$ degrees and angle MNL is less than $90$ degrees. The sum of the angles KNJ and MNL is less than $180$ degrees. Therefore, KNJ is not supplementary to MNL

$angle\ KNJ+angle\ MNL < 180\ degrees$

case 5) GNM is supplementary to JNK

Is True

Angle GNM is $90$ degrees and angle JNK is $90$ degrees. The sum of the angles GNM and JNK is $180$ degrees. Therefore, GNM is supplementary to JNK.

$angle\ GNM+angle\ JNK = 180\ degrees$

GNM is supplementary to JNK

therefore

the answer is

MNL is complementary to KNL

GNM is supplementary to JNK

4 0

3 years ago

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Which statement is true about the value of the expression below?

Rashid [163]

Answer:It is between one and zero

Step-by-step explanation:

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3 years ago

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Use the slope formula to determine the slope of the line that passes through the points A(-5, 9) and B(-5, 6).

Anit [1.1K]

Answer:

undefined

Step-by-step explanation:

The slope formula tells you the slope is ...

m = (y2 -y1)/(x2 -x1)

Fill in the point coordinates, we find the slope to be ...

m = (6 -9)/(-5 -(-5)) = -3/0

This slope is undefined.

___

It means the line is a vertical line. The constant must match the x-coordinates of the points:

x = -5 . . . . the line through the given points

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3 years ago

Find the area of the regular 18 gon with a radius of 13mm

pochemuha

This polygon thing is all about triangles. If the polygon has 18 sides, it also has 18 central angles. 360/18 = 20. This means that each one of the triangles has a vertex angle of 20. We need to take this one triangle now and "pull" it out and isolate it cuz we only need to worry about 1, and we need to find the base measure of it for the perimeter, and the altitude of it for the apothem. It would be easiest then to separate this triangle in half and have it be a right triangle, and the vertex angle is now 10. If the vertex angle is 10 and this is a right triangle, then the 3rd angle by the triangle angle-sum theorem has to be 80. The side ACROSS from the 80 degree angle is the apothem and the info telling us that the radius is 13 now puts that 13 as the hypotenuse of our right triangle. We will use a trig identity relating this reference angle of 80 to the side across from it, "a", and the hypotenuse of 13. $sin(80)= \frac{x}{13}$ and we get that that side measures 12.8, rounded. Now we have the apothem for the formula. Now we need the base measure of the right triangle. Use cos of 80 to find it: $cos(80)= \frac{x}{13}$ ad we get the base measure of the right triangle is 2.25. But don't forget that this is only half the original triangle we pulled out, so the base of the "whole" triangle is 2.25 * 2 which is 4.5. If one side measures 4.5 and we have 18 of them, the perimeter for our formula is 81. Now let's put everything together in the formula to find the area for the polygon: $A= \frac{1}{2} (12.8)(81)$ and we find that the area is 518.4

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3 years ago

What is standard form for 50,000+205 in standard form

oksano4ka [1.4K]

The answer is 50,205.

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