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2 years ago

Write an addition equation that can help you find 9-6. Explain your answer.

2 answers:

5 0

[(3+3)+3]-3+3

This is correct because the whats in the bars goes first so you do the parenthesis then the plus 3 then you do the outside which is 3 plus 3 which is equal to 6 so then you subtract 9-6.

iren [92.7K]2 years ago

4 0

9+(-6) I think that this might work.

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This graph shows changes in GDP and the unemployment rate in the United States in recent years. A graph titled Annual Change in

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Answer: A) When GDP falls, unemployment rises.

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2 years ago

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Basic math equations and calculations play an important role in many jobs tasks. If you were working at a grocery store and your

OverLord2011 [107]

Given :

Price of cereal without off, C = $2.88 .

Percentage off, P = 20% .

To Find :

Price after applying 20% off.

Solution :

Final price = Initial price - 20 % of initial price

$F = 2.88 - 2.88\times \dfrac{20}{100}\\\\F=2.88-0.576\\\\F=\$ 2.304$

Therefore, final price after sale is $2.304 .

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2 years ago

Soup can be packaged in two different containers: a box and a cylinder. The dimensions of the box are 7.5 cm by 4.7 cm by 14.5 c

Brilliant_brown [7]

Answer: Cylinder uses less material to make.

Box holds more soup then cylinder.

Step-by-step explanation:

Total surface area of cuboidal box =2(lw+wh+lh), l= length, w=width, h=height

Total surface area of cylinder = $2\pi r(r+h)$ where r= radius and h is height.

Given , Dimension of box : 7.5 cm by 4.7 cm by 14.5 cm

Dimension of cylinder : radius of 3.3 cm and a height of 10 cm.

Total surface area of box =2((7.5)(4.7)+(4.7)(14.5)+(7.5)(147.5)) sq. cm

= 2(1209.65)

=2419.3 sq. cm

Total surface area of cylinder = $2(3.14)(3.3)(3.3+10)$ $=275.63\ \text{ sq. cm}$

(Total surface area of cylinder)<(Total surface area of box )

So, cylinder uses less material to make.

Volume of box = l x w x h

= (7.5)(4.7)(14.5) = 511.13 cubic cm

Volume of cylinder = $\pi r^2h$

$=(3.14)(3.3)^2(10)$

= 341.946 cubic cm

As (Volume of box) > (Volume of cylinder )

So, Box holds more soup then cylinder.

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2 years ago

Find f(x) if it is known that f(2a−1)=7a−13.

sattari [20]

Answer:

$f(x)=3.5x-9.5$

Step-by-step explanation:

Given:

The given function in terms of 'a' is given as:

$f(2a-1)=7a-13$

In order to determine $f(x)$ , we need to make $2a-1$ equal to 'x' and find the value of 'a'. Therefore,

$2a-1=x\\2a=x+1\\a=\frac{x+1}{2}$

Now, plug in the value of 'a' on both sides, we get:

$f(2\frac{x+1}{2}-1)=7\frac{(x+1)}{2}-13\\f(x+1-1)=3.5(x+1)-13\\f(x)=3.5x+3.5-13\\f(x)=3.5x-9.5$

Therefore, the expression for the function in terms of 'x' is:

$f(x)=3.5x-9.5$

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2 years ago

Which is the graph of arctan(x)?

Delvig [45]

Answer:

First graph (see below)

Step-by-step explanation:

The graph of the arctan(x) is the first graph attached, see below. This is because if you were to plug in the equation in any TI calculator, you would get this graph.

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2 years ago