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3 years ago

[100 POINTS]!!!!!! Please help! serious answers only!!

Mathematics

2 answers:

Vlada [557]3 years ago

8 0

D. H = 90 + 2.50r

Y = 75 + 5.25s

lapo4ka [179]3 years ago

6 0

Option D.

H = 90 + 2.50r (Henry makes a flat rate of 90 and 2.50 per repair.)

Y = 75 + 5.25s (Yolanda makes a flat rate of 75 and 5.25 per sale.)

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You are sitting at the edge of the Grand Canyon admiring the view when you notice a tour group at the bottom of the canyon. You

ololo11 [35]

Answer:

7949.13 feet

Step-by-step explanation:

We are given that,

Angle of depression from the spot to the group = 39°

Height of Grand Canyon = 5000 feet.

So, we will get the following figure of a right triangle.

As, 'in a right triangle, the angles and the sides can be written in trigonometric form'.

We get, $\sin A=\frac{perpendicular}{hypotenuse}$

i.e. $\sin 39=\frac{5000}{x}$

i.e. $x=\frac{5000}{\sin 39}$

i.e. $x=\frac{5000}{0.629}$

i.e. x = 7949.13 feet

Thus, the line of sight distance is 7949.13 feet.

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3 years ago

The first three terms of a geometric sequence are as follows. -256, -64, -16. Find the next two terms of this sequence. Give exa

umka2103 [35]

Hi,

The next two are:

$- 16 \div 4 = - 4 \\ - 4 \div 4 = - 1$

Answer: -4 and -1

Hope this helps.
r3t40

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3 years ago

I need help with number one and thank you for your help

sveta [45]

Answer: B

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A wall in Marcus's bedroom is 8 2/5 feet high and 16 2/3 feet long If he paints 1/2 of the wall blue, how many square feet will

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We can simplify across between the 5 and the 50 and also between the 42 and the 3.

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3 years ago

Read 2 more answers

Drag each tile to the correct box.

Zielflug [23.3K]

The amount of heat depends on three factors:-

#Mass of the material used in bowls.

#Specific heat capacity of the material used in bowls.

#Temperature change.

So, (change in energy) = (mass) x (specific heat capacity) x (temperature change)

Temperature Change = (Change in energy) / (mass x specific heat capacity)

It says "The bowls start at the same temperature, and then the same amount of heat is added to each bowl". It means temperature change varies inversely with product of mass and specific heat capacity.

Higher the product of mass and specific heat capacity, Lower the temperature change, Cooler the bowl will be.

Water’s specific heat capacity is 4.186 joules/gram degree Celsius. Mercury’s specific heat capacity is 0.140 joules/gram degree Celsius.

Water and mercury are put into three identical bowls:

#Bowl A contains 20 grams of water.

#Bowl B contains 40 grams of water.

#Bowl C contains 20 grams of mercury.

So, we have (40g x 4.186 J/g) > (20g x 4.186 J/g) > (20g x 0.140 J/g)

It means temperature change in Bowl B < Bowl A < Bowl C.

Hence, Order of the bowls from coolest to warmest, based on their final temperatures would be Bowl B < Bowl A < Bowl C.

6 0

3 years ago