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earnstyle [38]
3 years ago
5

Evaluate the algebraic expression for the given values of x = 3 and Y =4 7 x - 2y-1​

Mathematics
1 answer:
Travka [436]3 years ago
4 0

Answer:

the answer is 12

Step-by-step explanation:

7x-2y-1. x=3. y=4

7×3-2×4-1

=21-8-1

=12

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If you have 12 circles an you shade in3/4 of them, how many circles do you shade?
aleksandrvk [35]
This is a formula if you need one. DON'T forget to cross-multiply

3/4 = x/12


4 0
3 years ago
Find the area of the circle with the given diameter. Use 3.14 for π. Round to two decimal places.
harkovskaia [24]

Answer:

14.13 m^2

Step-by-step explanation:

Formula for area:

3.14*r^2

To find the radius(r), you do diameter(d)/2:

9/2=4.5

3.14*4.5^2=14.13 m2

6 0
3 years ago
Read 2 more answers
A local carpet company has been hired to carpet a planetarium which is in the shape of a circle. If the radius of the planetariu
dem82 [27]

We are given radius = 6 yards

area of circle = pi * r * r = 3.14 * 6*6 = 113.04 yard square

cost of carpet is $14 per square yard

cost of 113.04 square yard = 14*113.04= 1582.56 dollars

Answer: cost to carpet the planetarium is $1582.56

7 0
3 years ago
2. Determine whether each event is impossible,
Gre4nikov [31]

Answer:

likely is the awnser

Step-by-step explanation:

likely is the awnser

3 0
3 years ago
1. 3x÷x³= ___ 2. (2x)³×(3x)²=____ 3. (x²)¹/³÷(x¹/³)³=___​
m_a_m_a [10]

Answer:

3/x^2 or 3x^-2

54x^5

x^-1/3

Step-by-step explanation:

2 6x^3×9x^2=54x^3+2=54x^5

3 x^2/3 × x^-1=x^-1/3

4 0
3 years ago
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