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Sunny_sXe [5.5K]

2 years ago

12

Leona has 4 nickels, 6 pennies, 7 dimes and 8 quarters in a piggy bank. Leona’s sister Daisy picks a coin at random, record what

it back. Predict the number of times Daisy would get a nickel or dime if she picks a coin 50 times.

1 answer:

Radda [10]2 years ago

4 0

Answer:

nvm.

Step-by-step explanation:

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Select all expressions that are equivalent to 10q + 5 ?

OLga [1]

Answer:

5q + 5q + 5

2q + 5 + 8q

5(2q + 1)

Step-by-step explanation:

5 0

3 years ago

Factor completely 3bx2 − 9x3 − b + 3x. (b − 3x)(3x2 − 1) (b + 3x)(3x2 + 1) (b + 3x)(3x2 − 1) Prime

Daniel [21]

$3bx^2-9x^3-b+3x=\boxed{3x^2}\cdot b-\boxed{3x^2}\cdot3x\fbox{-1}\cdot b\fbox{-1}\cdot (-3x)\\\\=\boxed{3x^2}(b-3x)\fbox{-1}(b-3x)=\boxed{(b-3x)(3x^2-1)}\\\\completely:\\use:a^2-b^2=(a-b)(a+b)\to3x^2-1=(x\sqrt3)^2-1^2=(x\sqrt3-1)(x\sqrt3+1)$
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6 0

3 years ago

Read 2 more answers

Can somebody write this is quadratic form please

galina1969 [7]

To write an equation in standard form, move each term to the left side of the equation and simplify.

ax2+bx+c = 0ax2+bx+c = 0

Move all the expressions to the left side of the equation.

−17−8x2−4x+3x2 = 0-17-8x2-4x+3x2 = 0

Add −8x2-8x2 and 3x23x2.

−17−5x2−4x = 0-17-5x2-4x = 0

Reorder the polynomial.

5x2+4x+17 = 0

Step-by-step explanation:

I hope this helped-

7 0

3 years ago

Can someone explain these two math questions to me?<br><br> −2 + 4 ⋅ 32 − 6<br><br> 5 + 42 ÷ 2(3)

zepelin [54]

The first one would be 120 the second one would be 68

8 0

3 years ago

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What is the product?<br><br> (5r − 4)(r2 − 6r + 4)

maxonik [38]

Answer:

1r

Step-by-step explanation:

(5r-4)(2r-6r+4)

1(5r-4)+1(2r-6r+4)

5r-4+2r-6r+4

5r+2r-6=1r

1r-4+4

-4+4=0

1r

7 0

1 year ago