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Paraphin [41]
3 years ago
14

Evaluate the expression when a=3 and b=4 2a2 + b =

Mathematics
1 answer:
dedylja [7]3 years ago
3 0

Answer: 16

Step-by-step explanation:

2x3x2+4

6x2+4

12+4

16!

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Answer:

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Step-by-step explanation:

4 0
2 years ago
What is the surface area of the figure<br><br> 16 cm *2<br> 30 cm *2<br> 48 cm *2
Masteriza [31]

Answer:

<h2>64 cm²</h2><h2 />

Step-by-step explanation:

surface area of a square base pyramid = base area + 4 ( triangular sides area)

where:

base = 4 cm

side height length = 6 cm

Surface area = 4² + 2(4)6

                     = 16+ 48

                     = 64 cm²

7 0
3 years ago
How many hours and minutes are there between 2:45 and 3:50?
Jlenok [28]
1 hour and 5 min. from 2:45 until 3:00 is 15 min. then from 3:00 until 3:50 is an additional 50 min. ad 15 and 50, and you get 65. every 60 min makes one hour, so that leaves you with one hour and five min.
3 0
3 years ago
Complete the equation, by supplying the missing exponent.<br> m•n2•m3= m 11n2
MaRussiya [10]

Given:

Consider the given equation is:

m^?\cdot n^2\cdot m^3=m^{11}\cdot n^2

To find:

The missing exponent.

Solution:

Let x be the missing exponent. Then the given equation can be written as

m^x\cdot n^2\cdot m^3=m^{11}\cdot n^2

It can be rewritten as:

(m^x\cdot m^3)\cdot n^2=m^{11}\cdot n^2

m^{x+3}\cdot n^2=m^{11}\cdot n^2      [\because a^ma^n=a^{m+n}]

On comparing the coefficient of m, we get

x+3=11

x=11-3

x=8

Therefore, the value of the missing exponent is 8. So, the complete equation is m^8\cdot n^2\cdot m^3=m^{11}\cdot n^2.

4 0
2 years ago
Write an equation of the circle with center (-3, 7) and radius 2.
jok3333 [9.3K]

Answer:

(x+3)^2 + (y-7)^2 = 2^2

Step-by-step explanation:

Follow the standard form of a circle, (x-h)^2 + (y-k)^2 = r^2, given that (-3,7) is (h,k) and 2 is r.

4 0
2 years ago
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