Mathematics High School

help me

Mount St. Helens lost about 1300 feet of height in the May 18, 1980, volcanic eruption.
About how many meters of height did it lose?
A. about 3900 meters
B. about 39 meters
c. about 3.900 meters
D. about 400 meters
E. about 40 meters
​

Answers

Answer 1
D , about 400 meters , exact answer is 396.24

Related Questions

I need help on this problem. Does anyone know how to complete it? Please and thank you :)

Answers

i think it's 5 because i remember learning that it's gonna be half of what the bottom is

Using the function w=7d+13 which statement is true.

A. the independent variable is w
B. The independent variable is d
C. the dependent variable is
D. the independent variable is 7

Answers

A is the answer the independant variable is w

Answer:

B: The independent variable is d.

Step-by-step explanation:

I took the test on K12

which of the following is the best estimate for 487 divided by 67

Answers

Answer: 7.26

Step-by-step explanation:

calculator

Solve: 4 - 2 x 8 + (6 x 2) x 4 + 3^2

Answers

Answer:

42

Step-by-step explanation:

Answer:

45

Step-by-step explanation:

4 - 2 × 8 + (6 × 2) × 4 + 3²

= 4 - (2 × 8) + (6 × 2) × 4 + 3²

= 4 - 16 + 12 × 4 + 9

= (4 - 16) + (12 × 4) + 9

= -12 + 48 + 9

= 45

Karma baked 48 cookies yesterday. Every hour, she bakes another batch of 12 cookies. What is the rate of change for the scenario described? (4 points)

a
4

b
12

c
60

d
48

Answers

Answer:

b

Step-by-step explanation:

Every 4 hours she makes 48 cookies, and we can make a rate of 4:48 equal to 1:12.

Hope this helps

Answer:

B if i am correct

Step-by-step explanation:

srry i cant really explain it, it was complicated for me to find what i hope is the right answer

Combine the radicals

Answers

The radicals never change in this situation. You just subtract 3 from 9 so you’ll get:
6(sqrt x)

10 points!!

Find the inverse of f(x) = √x-1

Answers

f
−
1
(
x
)
=
x
2
+
1
f
-
1
(
x
)
=
x
2
+
1

Answer:

Step-by-step explanation:

For a function to have an inverse, it has to pass the horizontal and vertical line test, yes both of them. This function does, so we can continue. The first step for finding an inverse is replacing f(x) with y. Then switch the places of x and y.

[tex]x=\sqrt{y-1}[/tex]

Now the next step is to solve for this new y value, which is equivalent to f^-1(x). Square both sides to get rid of the radical.

[tex]x^2=y-1[/tex]

Add 1 to both sides and that is your inverse function

[tex]y=x^2+1[/tex]

how to I do Ratios with cross multiplying
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Answers

I think if it is not correct i am vary sorry

Answer:

To cross multiply, multiply the numerator from one side with the denominator of the other side and put that product on one side of the equation. Do the same with the other numerator/denominator and put that on the other side. From there, solve for the unknown part.

So your ratio might look like this:

4/6=x/12

6x=12(4)

6x=48

x=8

So in this case 4/6 would equal 8/12.

HTH :)

A train is traveling at a constant speed and goes 17 kilometers in 8 minutes. How far will the train travel in 60 minutes.

Answers

Answer:

Distance B = 1275 kilometers.

Step-by-step explanation:

Let the two distances and time be A and B respectively.

Given the following data;

Distance A = 17 kilometers.

Time A = 8 minutes.

Distance B =?

Time B = 60 minutes.

First of all, we would find the constant speed;

Speed = distance/time

Substituting into the equation, we have;

Speed = 17/8

Speed = 2.125 km/m

Now, to find the distance B;

Distance B = speed * time

Distance B = 2.125 * 60

Distance B = 1275 km

I need help with this pls

Answers

Answer:

if it a worksheet search the question online and the answer key comes up

Step-by-step explanation:

-7.2 as a mixed number.

Answers

Lzkdfkfjejwjekerjfif

Answer:

7 1/5                 

Explanation:

Rewrite the decimal number as a fraction with 1 in the denominator

7.2=7.2/1

Multiply to remove 1 decimal places. Here, you multiply top and bottom by 10^1 = 10

7.2/1×10/10=72/10

Find the Greatest Common Factor (GCF) of 72 and 10, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 2,

7/2÷2/10÷2=36/5

Simplify the improper fraction,

=7 1/5

In conclusion,

−7.2=−7 1/5

Hope it helped. :)

A dump truck pours sand into a container in the shape of a rectangular prism with a square base of length 2 feet. The height, h, of the sand in the container increases at a rate of approximately 8 inches per minute. Create an equation that models the volume, V, of the sand in the container in terms of h, then use the equation to determine the time at which the volume is 64 cubic feet. Note that the volume of a rectangular prism is V=l×w×h, where l, w, and h are the length, width, and height of the prism.

Answers

Answer:

I think the answer is 24 minutes!

Step-by-step explanation:

I hope this helps!

Answer:6+89

Step-by-step explanation:439+3947+v=90

I need help, I need to find the value of a

Answers

Answer:

4

Step-by-step explanation:

Write the ratio as a fraction in simplest form write the whole number in the numerator and denominator 24:56

Answers

24/56

which in simplest forms is 3/7

is this what you’re asking?



3. Bob the plumber charges $15 per hour plus a service fee of $40 for coming out to your
house. How much would plumber Bob charge for working 5 hours?
A) $125
B) $100
C) $75
D) $115

Answers

Answer:

D) $115

Step-by-step explanation:

15x + 40 = y

15 (5) + 40 = 115

15 x 5 = 75

75 + 40 = 115

Answer:

D is the answer

Step-by-step explanation:

15x5=75

75+40=115

Round your answer to the nearest hundredth.
-1.7f - 26 = 34

Answers

F=-35.29
Add 26 to both sides. -1.7=34+26
Simply 34+26=60 -1.7f=60
Divide both sides by -1.7 f=-60/1.7
Simply-60/1.7 to get -35.294118 then round to nearest hundredth to get F=-35.29
Hope That helps!!!

i need help on the first 2

Answers

With what? Questions?

I need help with geometry

Answers

Answer:

it's option B)...

Step-by-step explanation:

de=8 df=10 a=d

Answer:

It will be D

Step-by-step explanation:

Hope this Helped

If you invested $1,000 in an account
paying an annual percentage rate of
2.5%, compounded continuously, how
much would you have in you account
at the end of 10 years and 20 years?

Answers

10 years: $1250
20 years: $1500

According to the Bureau of Labor Statistics, preschool teachers earn _______________ per year with an associate's degree, and the job growth is projected at ________ per year.

a. $18,575, 10 percent
b. $28,990, 3 percent
c.m$28,990, 10 percent
d. $24,990, 3 percent

Answers

You answer will be d
The correct answer is d. Your welcome luv <3

For the following statements 11 - 16 write TRUE or FALSE.

11. Through any two points there is exactly two lines.

12. A line contains of at LEAST two points.

13. A plane contains at least three non-collinear points.

14. Two lines intersect at a point.

15. Two planes intersect at a point.

16. A line and a plane intersect at a line.

Answers

Answer:11 is false. Through any two points there is exactly one line. 12 is true. 13 is true. 14 is true. 15 is false. Two planes intersect at a line. 16 is false. A line and a plane would intersect at a point

Step-by-step explanation:

A plane is traveling at 600 miles per hour. How many feet per second is it traveling?

Answers

Answer:

600

Step-by-step explanation:

Answer:

880 ft/sec

Step-by-step explanation:

Jenny shares £630 between her two children, Daniel and Rose, in the ratio 5 : 13

Work out how much money Jenny gives to each child.

Answers

Answer:

175 (daniel)

455 (rose)

Step-by-step explanation:

Daniel : Rose : Total

5         : 13      : 18

18 units --> 630

1u --> 35

5u --> 175 (daniel)

13u --> 455 (rose)

Did you already finish it ?

w-7=-4 i do not no this one please help me

Answers

Answer: i believe what you're looking for is W so, W=3

Step-by-step explanation: you add +7 to each side of the equation, which gives you W=3

Answer:

w= 3

Step-by-step explanation:

Add 7 to both sides of the equation  w-7 = -4

w-7+7=-4+7

Simplify : w-7+7=-4+7  which simplifies to w=   -4 +7

So, w  =  -4 +7  is w= 3

HELP I NEED HELP ASAP

Answers

15 hope this helps you

PLZ HELP ASAP!!!!!!!​

Answers

Answer:

angle 1 and angle 2 are supplementary angles

Step-by-step explanation:

When the base of the angles forms a straight line, the sum of the angles is 180°. That's the definition of supplementary angles.

Complementary angles form a right angle. The sum of complementary angles is 90°

A slightly silly way to remember Complementary angles: The two angles look at each other and compliment each other saying, "You look all right to me!"

"Yes, we are so right together!"

:)

help please, I'll give brainliest :< to whoever can answer and give the solutions​

Answers

Answer:

3. Fifteen weeks

Step-by-step explanation:

well if you subtract the 4000 from the 10000 you get 6000 and then divide 6000 by the 400 and you get 15

if line f passes through points (9 , 9) and (6 , 1) . Line g is perpendicular to line f. What is the slope of line g?

Answers

I have no clue but I’m sure someone on here will send you in the right path. Sorry and good luck

Each lap around a park is 0.58 miles. Jessica walked 3.25 laps around the park. How many miles did Jessica walk around the park?
A.) 1.741 miles
B.) 1.865 miles
C.) 1.885 miles
D.) 1.785 miles

Answers

0.58x3.25=1.885
c.)1.885 miles

what is 5 to the power of 6 over 5 to the power of 2

Answers

Answer:

625

Step-by-step explanation: 5^6/5^2

multiply 5^6 and than devide your answer with 5^2

Answer:

625

Step-by-step explanation:

5^6=15625

5^2=25

15625/25=625

Other Questions
helpsjdjdjdjcjcjfjfjfjcjfjfjxjff If Lin runs21 laps at the same rate will it take her how many minutes What are the next three terms in the following sequence 3 6 12 24 plz help Excerpt from Stuff Matters By Mark Miodownik In the absence of copper, gold, and meteoric iron, our ancestors tools during the Stone Age were made of flint, wood, and bone. Anyone who has ever tried to make anything with these kinds of tools knows how limiting they are: if you hit a piece of wood it either splinters, cracks, or snaps. The same is true of rock or bone. Metals are fundamentally different from these other materials because they can be hammered into shape: they flow, they are malleable. Not only that, they get stronger when you hit them; you can harden a blade just by hammering it. And you can reverse the process simply by putting metal in a fire and heating it up, which will cause it to get softer. The first people to discover these properties ten thousand years ago had found a material that was almost as hard as a rock but behaved like a plastic and was almost infinitely reusable. In other words, they had discovered the perfect material for tools, and in particular cutting tools like axes, chisels, and razors. This ability of metals to transform from a soft to a hard material must have seemed like magic to our ancient ancestors. *** In 1961 Professor Richmond from Oxford University discovered a pit that had been dug by the Romans in AD 89. It contained 763,840 small two-inch nails, 85,128 medium nails, 25,088 large nails, and 1,344 extra-large sixteen-inch nails. The hoard was of iron and steel and not gold, which most people would have found bitterly disappointing. But not Professor Richmond. Why, he asked himself, would a Roman legion bury seven tons of iron and steel? The legion had been occupying the advance headquarters of Agricola in a place called Inchtuthil in Scotland. This was at the outer reaches of the Roman Empire, and their mission was to protect its border from what they saw as the savage tribes who threatened it: the Celts. The legion of five thousand men occupied the region for six years before retreating and, in the process, abandoning their fort. They made great efforts to leave behind nothing that could help their enemies. They smashed all food and drink containers and burned the fort to the ground. But they werent satisfied with this. In the ashes were the steel nails that had held the fort together, and they were far too valuable to be left to the tribes that had driven them out. Iron and steel were the materials that enabled the Romans to build aqueducts, ships, and swords; they allowed them to engineer an empire. Leaving the nails to their enemies would have been as useful as leaving a cache of weapons, so they buried them in a pit before marching south. Which line from the excerpt provides context that supports the meaning of the word malleable? a) metals are fundamentally different b) hammered into shape c) they flow d ) stronger when you hit them what was the first plan of goverment in north america.what this plan do HELP I NEED HELP ASAP During elections in a democracy, it is important that all citizens exercise their right todetermine their future by voting.The suffix -cracy means "form of government." The root demo means "commonpeople." Which of the following is the BEST definition of democracy?a nation that treats everyone fairlya country ruled by its populationa system based on laws and justicea place that has a great leader Based on what you have learned about currents, how do you think this mass of trash ends up in the Great Pacific Garbage Patch? Looking at the map, what ideas do you have about why the trash is "trapped" in this location? What happens to water when light is absorbed? A. it bonds with carbon dioxide and forms carbonic acidB. it bonds with oxygen and form H2O2C. it splits and oxygen is given off, while H+ builds up in the thylakoid spaceD. it heats up and therefore provides the activation energy needed to start photosynthesis help please!! solve for x hellpppppppppppppp pleaseeee 20x=-58-2y 17x=-49-2y Mary got a sales job at her father's company. She was paid $9 per hour plus a 5%commission on her sales. Last week sheworked 40 hours with sales of $5560. How much was she paid? Please help asap! Giving brainliest to correct answer. Three sections of the periodic table are labeled A, B, and C in the image below.Which of the following statements is most likely true for an element present in section B? Select one:a. It is a highly reactive metal.b. It is an inert gas at room temperature.c. It may act as an insulator or a conductor.d. It is a highly reactive liquid at room temperature. Amy and Joey are situated on a circular track 400 feet around. Joey starts running at a rate of 10 feet per second. Amy waits for a full minute, then starts running from the same point (in the same direction) at 12 feet per second. How many seconds elapse before Amy passes Joey on the track? Plz help The table shows the linear relationship between theamount of chocolate chips in ounces and the amountof oats in cups used in a dessert recipe.What is the rate of change of the amount ofchocolate chips with respect to the amount of oatsused in this recipe?Dessert Recipeoz per cupOats(cups)Chocolate Chips(oz)3 oz per cup100362oz per cupA12D2 oz per cup18 isabels class has collected 90 cans in a food drive they plan to sort the cans into n bags, with an equal number of cans in each bag. write an expression to show how many cans there will be in each bag. Kelly met Jesse and Liza at the max for breakfast. The graph shows Kellys speed during her 12 minute drive Expanded volcanic rock used as a soil amendment is known as _____.A- PerliteB- Vermiculite C- PeatD- Sand Where does the energy for a wave come from? A: the potential energy of height B:the kinetic energy of a push C:the kinetic energy of a pull D:the static energy not the molecules hitting