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Semmy [17]
3 years ago
13

Explain how you used the bar model and exercise to to solve the problem

Mathematics
1 answer:
MariettaO [177]3 years ago
8 0
You need to show us the bar model
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What is the volume of the prism?<br> 2 cm<br> 3cm<br> 11 cm PLS HURRY
mafiozo [28]

Answer:

66

Step-by-step explanation:

multiply everything together

4 0
2 years ago
-15
Sloan [31]
Try the first option if that's an option
3 0
2 years ago
The length of a 200 square foot rectangular vegetable garden is 4feet less than twice the width. Find the length and width of th
inna [77]

Answer:

Length = 18.099 ft

Width = 11.049 ft

Step-by-step explanation:

let the length of the field be x ft

and the width be y ft

as per the condition given in problem

x=2y-4   -----------(A)

Also the area is given as 200 sqft

Hence

xy=200

Hence from A we get

y(2y-4)=200

taking 2 as GCF out

2y(y-2)=200

Dividing both sides by 2 we get

y(y-2)=100

y^2-2y=100

subtracting 100 from both sides

y^2-2y-100=0

Now we solve the above equation with the help of Quadratic formula which is given in the image attached with this for any equation in form

ax^2+bx+c=0

Here in our case

a=1

b=-1

c=-100

Putting those values in the formula and solving them for y

y=\frac{-(-2)+\sqrt{(-2)^2-4 \times (-1) \times 100}}{2 \time 1}

y=\frac{-(-2)-\sqrt{(-2)^2-4 \times (-1) \times 100}}{2 \time 1}

Solving first

y=\frac{2+\sqrt{4+400}{2}

y=\frac{2+\sqrt{404}{2}

y=\frac{2+20.099}{2}

y=\frac{22.099}{2}

y=11.049

Solving second one

y=\frac{-(-2)-\sqrt{(-2)^2-4 \times (-1) \times 100}}{2 \time 1}

y=\frac{2-\sqrt{4+400}{2}

y=\frac{2-\sqrt{404}{2}

y=\frac{2-20.099}{2}

y=\frac{-18.99}{2}

y=-9.045

Which is wrong as the width can not be in negative

Our width of the field is

y=11.099

Hence the length will be

x=2y-4

x=2(11.049)-4

x=22.099-4

x=18.099

Hence our length x and width y :

Length = 18.099 ft

Width = 11.049 ft

4 0
3 years ago
Can someone please help me solve these two quadratic equations by factoring!
snow_tiger [21]

Answer:

1st one: (x-2)(x+10)

2nd one: (x-7)(x-3)

Step-by-step explanation:

6 0
2 years ago
Can someone pls help me
fenix001 [56]

Answer:

A.

Step-by-step explanation:

it is showing the percentage of side effects as well as how it impacted children and adults.

7 0
2 years ago
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