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xenn [34]
3 years ago
15

How many unit cubes are needed to

Mathematics
1 answer:
marusya05 [52]3 years ago
3 0

Answer:

b

Step-by-step explanation:

3 x 5=15

15 x 9= 135

135=b

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What would the area of the cross section be that goes through the center below?
Sav [38]

Answer: 201.06 cm^2

Step-by-step explanation: We're just solving for the area of a circle. A = pi•r^2. The diameter is 16 which is 2r so r = 8. 8^2 • pi = 64pi = 201.06 (rounded to 2 decimals)

7 0
3 years ago
A baseball cost $7 and a baseball bat cost $27. With a 6.5% tax rate, what is the total cost of buying both items?
mestny [16]

Answer:

Total cost of buying both items is $36.21.

Step-by-step explanation:

We are given that a baseball cost $7 and a baseball bat cost $27.

Also, we are given a tax rate of 6.5%

Now, to find the total cost of both items we will find the individual costs of both items by applying tax rate on it.

<u><em>Cost of baseball after applying tax rate is given by;</em></u>

Since we know that by applying a tax on any item it's cost gets increased.

So, Cost of baseball after tax = Cost of baseball before tax + Amount of tax      

Amount of tax = Tax rate \times Cost of baseball

                        = 6.5% \times $7

                        = \frac{6.5}{100} \times 7 = $0.455

So, Cost of baseball after tax = $7 + $0.455 = $7.455

<u><em /></u>

<u><em>Cost of baseball bat after applying tax rate is given by;</em></u>

Cost of baseball bat after tax = Cost of baseball bat before tax + Amount of tax      

Amount of tax = Tax rate \times Cost of baseball bat

                        = 6.5% \times $27

                        = \frac{6.5}{100} \times 27 = $1.755

So, Cost of baseball bat after tax = $27 + $1.755 = $28.755

Now, <u>the total cost of buying both items</u> = Cost of baseball after tax + Cost of baseball bat after tax

                                = $7.455 + $28.755 = $36.21

Therefore, the total cost of buying both items is $36.21.

6 0
3 years ago
Complete the steps to solve the polynomial equation x^3 – 21x = –20. According to the rational root theorem, which number is a p
Ber [7]
X^3 - 21x = -20
add 20 to both sides
x^3 - 21 x + 20 = 0
Rational Root Theorem:
Factors of P (constant) 20 = 1, 2, 4, 5, 10, 20
-------------------------------      
Factors of Q (leading Coefficient) = 1

Possible zeros (all + -) 1/1, 2/1, 4/1, 5/1, 10/1, 20/1

Of the choices given only the number 1 is a possible root.
8 0
3 years ago
Read 2 more answers
Find the absolute maximum and minimum of the function f(x,y) = x^2 + y^2 subject to the constraint x^4 + y^4 = 81. as usual, ign
borishaifa [10]
X^4+y^4=81

there are 2 solutions

x=0                   x=3
y=3       or          y=0
 
f(x,y)=3^2+0^2=9 is a constant who has the graph  a line || Ox 


8 0
3 years ago
What is the value of cose in the diagram below?<br> a)3/5<br> b)3/4<br> c)4/5<br> d)4/3
skad [1K]
The answer to your question is A which is 3/5
3 0
3 years ago
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