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3 years ago

A bag holds 12 red marbles, 11 green

Mathematics

2 answers:

wariber [46]3 years ago

5 0

Y/T = 28/45 = 62%
Y=yes
T=total

Blizzard [7]3 years ago

3 0

Answer:

62.22%

Step-by-step explanation:

First, find how many total marbles there are:

12 + 11 + 17 + 5

= 45

Then, find how many marbles that are not blue:

12 + 11 + 5

= 28

Then, divide 28 by 45, and multiply by 100

(28/45) x 100

= 62.22% is the probability of not choosing a blue marble

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the area formula is a parallelogram is equal to (Base)*(height). If the area if a parallelogram is given by the trinomial x^2-14

abruzzese [7]

Answer:

x-12

Step by step explanation:

Here it is given that the area of a parallelogram is given by base * height. And if the area is represented by ,

$\longrightarrow A = x^2-14x+24$

And the base of the parallelogram is given by,

$\longrightarrow Base = x-2$

Substituting the values in the given formula, we have;

$\longrightarrow Area = base \times height$

$\longrightarrow x^2-14x+24=h(x-2)\\$

Divide both sides by (x-2) .

$\longrightarrow h =\dfrac{x^2-14x+24}{x-2}$

Factorise the term in numerator,

$\longrightarrow h =\dfrac{x^2-12x-2x+24}{x-2}\\$

$\longrightarrow h =\dfrac{x(x-12)-2(x-12)}{x-2}\\$

$\longrightarrow h =\dfrac{(x-2)(x-12)}{x-2}$

Simplify,

$\longrightarrow \underline{\underline{ height= x-12}}$

This is the required answer!

6 0

3 years ago

Please, somebody, solve this quick and reply with step by step explanation AND provide all steps of working!

Alexxx [7]

Answer:

For a trapezium of height H, parallel side 1 X, and parallel side 2 Y, the area is:

A = (1/2)*H*(X + Y)

with this we can complete the table.

Here we know:

X = 7cm

Y = 11cm

H = 6cm

Then: A = (1/2)*6cm*(7cm + 11cm) = 54 cm^2

Here we know:

X = 8 m

Y = 10 m

A = 126 m^2

Then:

126 m^2 = 0.5*H*(8m + 10m)

126 m^2 = H*9m

126 m^2/9m = H = 14m

Then the height of this trapezoid is 14m

Here we know:

X = 5mm

H = 8mm

A = 72 mm^2

Then:

72 mm^2 = 0.5*8mm*(5mm + Y)

72 mm^2 = 4mm*(5mm + Y)

72mm^2/4mm = 5mm + Y

18 mm = 5mm + Y

18mm - 5mm = Y

13 mm = Y

Then the parallel side 2 is 13 mm long.

7 0

3 years ago

3) The volume of a sphere is 7234.56ft3. Find the diameter.

pashok25 [27]

Answer: 12.001 ft is the radius

Step-by-step explanation:

Volume of sphere is calculated by following formula:

V = 4/3 pi r³

Putting values

7234.56 = 4/3 × 3.14 ×r³

Simplifying

7234.56 = 4.186 ×r³

Rearranging the equation

r³ = 7234.56/4.186

r³ = 1728.28

Taking cube root on both sides

r = 12.001

8 0

3 years ago

What is the value of y=4x-2 when x=3? When x=3, y=?

balu736 [363]

Answer:

y = 10

Step-by-step explanation:

$y = 4(3)-2$
$y = 12 - 2$
$y = 10$

Have a lovely rest of your day/night, and good luck with your assignments! ♡

~ ren ⚘

3 0

3 years ago

Read 2 more answers

Find the 7th term of a geometric sequence with t1=5 and r=-2

Dmitry [639]

Hello,

$t_{1}=5$
$t_{2}=5*(-2)$
$t_{3}=5*(-2)^2$

$t_{n}=5*(-2)^{n-1}$

$t_{7}=5*(-2)^6=320$

8 0

4 years ago