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3 years ago

Noam solved the equation for k using the following calculations

Mathematics

2 answers:

Mandarinka [93]3 years ago

6 0

The mistake here was the .6 was treated as .06. Adding 7.6 to 10.35 really gives 17.95.

ANEK [815]3 years ago

4 0

Answer:

He should have subtracted 7.6 instead of adding it.

Step-by-step explanation:

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4.185 divided by 0.93 rounded

mr Goodwill [35]

To the nearest whole: 4
to the nearest hundredth: 4.2
actual answer: 4.5

4 0

3 years ago

A coin has heads on one side and tails on the other. The coin is tossed 12 times and lands

Fynjy0 [20]

Answer:

D, the observed frequency of landing heads up gets closer to the expected frequency based on the probability of the coin landing heads up.

Step-by-step explanation:

As of now, the observed frequency states that the coin will land on heads 4/12 times. The expected frequency states that the coin will land on heads 50% of the time, or 6/12 times. As the number of trials increases, the observed frequency will get closer to the expected frequency.

3 0

3 years ago

A balloon has a circumference of 28 in use the circumference to approximate the surface area of the ballon to the nearest square

nikklg [1K]

The surface area of the balloon is 249 in².

<h3>What is the surface area of the balloon ?</h3>

A balloon has the shape of a sphere. The distance round the sphere is equal to the circumference of the sphere.

Circumference of the sphere = 2πr

Where:

r = radius
π = pi = 22 / 7

Radius - circumference / 2π

28 / ( 2 x 22/7) = 4.45 inches

Surface area of a sphere = 4πr²

4 x 22/7 x 4.45² = 249 in²

To learn more about the surface area of a sphere, please check: brainly.com/question/27267844

#SPJ1

5 0

1 year ago

PLS HELP WILL MARK BRAINLIST IF ANSWER IS CORRECT !! :) FILL IN THE BLANKS

andrew-mc [135]

Answer:

Part 1) The volume of the storage body is 576 cubic feet

Part 2) To find out how many boxes can she fit in the storage body, divide the volume of the storage body by the volume of each box

Part 3) Sheila can fit 64 boxes into the truck

Step-by-step explanation:

step 1

Find the volume of the storage body

we know that

The volume of the of the storage body is equal to the volume of two rectangular prism

The volume of a rectangular prism is equal to

$V=LWH$

First rectangular prism (top)

$V=(15)(6)(8-6)=180\ ft^3$

Second rectangular prism (bottom)

$V=(15-4)(6)(6)=396\ ft^3$

The volume of the storage body is

$V=180+396=576\ ft^3$

step 2

we know that

To find out how many boxes can she fit in the storage body, divide the volume of the storage body by the volume of each box

step 3

substitute the given values

$\frac{576}{9}= 64\ boxes$

therefore

Sheila can fit 64 boxes into the truck

7 0

3 years ago

If - 4x + 6y = 9 and -2x – 7y = -8 are true equations, what would be the value of -2x + 13y?

UkoKoshka [18]

Answer:

Step-by-step explanation:

The expression of interest is the difference of the two given expressions.

(-4x +6y) -(-2x -7y) = (9) -(-8)

-2x +13y = 17

The value is 17.

_____

<em>Additional comment</em>

You could go to the trouble to solve the two equations for x and y, then compute the value of the expression you want. As we saw above, that is not necessary.

The first step in problem solving is always "look at the given information and how it relates to what you are asked." A little time spent doing that can save a lot of effort in the actual problem solving process.

6 0

2 years ago