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3 years ago

4th grade math help & explain please

Mathematics

1 answer:

ohaa [14]3 years ago

7 0

Nothing on the rectangle is shaded, unless the camera quality is poor.

0/12

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What's the 13th term in the arithmetic sequence

leva [86]

Replace n with 13 and simplify

an = 84+(n-1)*(-6)
a13 = 84+(13-1)*(-6)
a13 = 84+(12)*(-6)
a13 = 84+(-72)
a13 = 84-72
a13 = 12

Answer: Choice A) 12

6 0

3 years ago

At the store, Jason find the volume of a soda pack is 423.9 in.³. If each cylinder shaped can has a height of 6 inches and a dia

Marina86 [1]

Answer : The correct option is, (A) 10

Step-by-step explanation :

First we have to calculate the volume of cylinder shaped can.

Formula used:

Volume of cylinder = π r² h

where,

r = radius of cylinder

h = height of cylinder

Given:

Diameter of cylinder = 3 in

Height of cylinder = 6 in

Radius of cylinder = $\frac{Diameter}{2}=\frac{3in}{2}=1.5in$

Now putting all the given values in the above formula.

Volume of cylinder = π r² h

Volume of cylinder = 3.14 × (1.5 in)² × 6 in

Volume of cylinder = 42.39 in³

Now we have to determine the number of soda cans are in a pack.

Number of soda cans are in a pack = $\frac{\text{Volume of soda pack}}{\text{Volume of cylinder shaped can}}$

Number of soda cans are in a pack = $\frac{423.9in^3}{42.39in^3}$

Number of soda cans are in a pack = 10

Therefore, the number of soda cans in a pack are 10.

8 0

3 years ago

Find the determinant of the matrix.

Natalka [10]

Answer:

Step-by-step explanation:

$\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] = ad-bc$

0(4)-4(0) = 0

8 0

3 years ago

In the Present Value of an Ordinary Annuity formula, what does the n represent?

Ierofanga [76]

N represents the number of payment periods. Supposing you arranged for a mortgage to buy a house; you'd have to make n payments of so many dollars per month to pay off the mortgage (the total amount due,with interest).

If the annual interest rate were r, and payments were due monthly (12 payments per year), then the monthly interest rate would be r/n = r/12. The typical 30-year mortgage involves monthly payments over a 30 year time span. This comes to 360 monthly mortgage payments.

7 0

3 years ago

17,000 cu in= how many cu yd? No trolls please. Go somewhere else if your trolling and not wanting to help. Give me a whole numb

Mila [183]

Answer:

.36 cubic yard

Step-by-step explanation:

4 0

2 years ago