All categories

3 years ago

I need help answering all of these

Mathematics

2 answers:

Mashcka [7]3 years ago

7 0

Answer:

A)-7

B)2

C)-2

D)-4

Step-by-step explanation:

kolezko [41]3 years ago

3 0

Answer:

well the (a) is -3 and (c) is 2

Step-by-step explanation:

You might be interested in

Half the gas in the tank was used when

Anvisha [2.4K]

Answer: She had 20 gallons to begin with.

Step-by-step explanation:

16 = 6 + 1/2x

x = the amount she had to start with

Subtract 6 from each side

10 = 1/2x

Divide each side by 1/2

20 = x

5 0

4 years ago

Drag each expression to show whether it can be used to find the surface area, volume or neither

Brut [27]

Answer:

Surface area:

$2(12\times 6) + 2(6 \times 8) + 2(8 \times 12)$

$2((12\times 6) + (6 \times 8) + (8 \times 12)$

Volume :

$(12 \times 6 \times 8)$

Neither:

$8(12 \times 6)$

$2(12 \times 6 \times 8)$

$12+6+8$

Step-by-step explanation:

Surface area of the cuboid:

The Surface area of the cuboid = 2(lb) +2(bh) +2(hl)

Where

l =length of the cuboid

b = Breadth of the cuboid

h = height of the cuboid

So ,

The surface area will be

SA = $2(12\times 6) + 2(6 \times 8) + 2(8 \times 12)$

SA = $2((12\times 6) + (6 \times 8) + (8 \times 12))$

SA = $2(72+48+98)$

SA = $2(216)$

SA = 432

Volumes of the cuboid:

$Volume = length \times breadth \times height$

Volume = $(12 \times 6 \times 8)$

volume = 576

4 0

4 years ago

16 = s/2 *

emmainna [20.7K]

Step-by-step explanation:

x+8=10

x−4=22

x÷3=6

7x=28

60=30+30=6+6+6+6+6+6+6+6+6+6

a=a

a=b,thenb=a

60=30+30,then30+30=60

ifa=bandb=c,thena=c

60=30+30

30+30=6+6+6+6+6+6+6+6+6+6

60=6+6+6+6+6+6+6+6+6+6

4 0

3 years ago

Read 2 more answers

The price of some houses in a neighborhood are shown below: House Price A $120,000 B $130,000 C $140,000 D $150,000 E $1,110,000

LenaWriter [7]

Answer:

To infer a price for the houses in that neighborhood, it is better to use the median.

Step-by-step explanation:

We have the following prices:

$ 120,000

$ 130,000

$ 140,000

$ 150,000

$ 1,110,000

Now, if we do it for the median, it is the best option, because there is a very distant value and the median is not much affected. The value that is inferred through the average is $ 140,000, a value close to the first 4 houses.

If we do it by the mean, the value would be:

(120,000 + 130,000 + 140,000 + 150,000 + 1,110,000) / 5 = $ 330000

a value very far from all the prices of the houses, this is due to the value so far from the last house.

In other words, to infer a price for the houses in that neighborhood, it is better to use the median.

4 0

4 years ago

A cone and its dimension are shown in the diagram. Find the volume of the cone in cubic feet.

frosja888 [35]

Answer:

$\pi/4$

Step-by-step explanation:

The volume of a cone is $\pi r^2h/3$ . We have that $r=1$ and $h=3/4$ . Therefore, the volume is $\pi/4$ .

5 0

3 years ago