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nikitadnepr [17]
3 years ago
8

PLEASE HELP!! BE AUICK AND EXPLAIN!Solve the system by graphing!

Mathematics
1 answer:
zubka84 [21]3 years ago
4 0
The answer to the question is (2,-2) d

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The first and fifth terms of a geometric progression (G.P) are 2.5 and 40 respectively. If the common ratio is positive, find th
Nadusha1986 [10]

Answer:

637.5

Step-by-step explanation:

a_{1}=2.5=a\\a_{5}=40=ar^4\\r=2 \ \& \ a=2.5\\\text{Sum}=\frac{a(r^n-1)}{r-1}=\frac{2.5*(2^8-1)}{1}=637.5

Love from Gauthmath.

5 0
3 years ago
If the dimensions of the following cylinder are doubled, what factor will the surface area change by?
AVprozaik [17]
To solve this problem you must apply the proccedure shown below:
 1. You have that the radius and the height of the cylinder are:
 r=8 in \\ h=6 in
 2. So, you must calculate the area:
 A1=2 \pi (r+h)
 3. Substitute the values into the formula:
 A1=2 \pi (8 in)(8 in+6in) \\ A1=703.71  in^{2}
 4. When the radius and the height are doubled, you obtain:
 A2=2 \pi (16 in)(16 in+12 in) \\ A2=2814.86 in^{2}
 5. The factor is:
 F=2814.8 in^{2}/703.71  in^{2}  \\ F=4
 The answer is: B. 4

4 0
3 years ago
Read 2 more answers
Simplify (b+11)2b PLEASE HELPPPP
seropon [69]

In order to simplify the expression (b+11)2b, we need to use the concept of distributive property.

Distributive property:

The distributive property of multiplication over addition can be used when you multiply a number by a sum.

a(b+c)=a*b+a*c

Our expression is:

2b(b+11)

Applying distributive property here :

2b(b+11)=2b*b+2b*11

=2b^{2}+22b

Answer: 2b^{2}+22b

5 0
3 years ago
The faces of an eight-sided solid are labeled 1 through 8. Each
Elenna [48]

Answer:

The probability that an odd number is rolled on  both solids is \frac{1}{4}.

Step-by-step explanation:

Consider the provided information.

For the 8 sided dice the total number of outcomes = 64.

The favourable outcomes i.e odd numbers on both the solid = 16

(1,1), (1,2), (1,3), (1,4), (1,5), (1,6), (1,7), (1,8)  

(2,1), (2,2), (2,3), (2,4), (2,5), (2,6), (2,7), (2,8)

(3,1), (3,2), (3,3), (3,4), (3,5), (3,6), (3,7), (3,8)

(4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (4,7), (4,8)

(5,1), (5,2), (5,3), (5,4), (5,5), (5,6), (5,7), (5,8)    

(6,1), (6,2), (6,3), (6,4), (6,5), (6,6), (6,7), (6,8)

(7,1), (7,2), (7,3), (7,4), (7,5), (7,6), (7,7), (7,8)      

(8,1), (8,2), (8,3), (8,4), (8,5), (8,6), (8,7), (8,8)  

We know that \text{Probability}=\frac{\text{Favourable outcomes}}{\text{Total outcomes}}

\text{Probability of odd on both solid}=\frac{16}{64}

\text{Probability of odd on both solid}=\frac{1}{4}

Hence, the probability that an odd number is rolled on  both solids is \frac{1}{4}.

3 0
3 years ago
Reflect the point (a) in the x-axis and (b) in the y-axis <br>(4,5)<br>and <br>(1 1/2, -1/4)
gulaghasi [49]

(4,5)

a) -4,5

b) 4,-5

(11/2 , -1/4)

a)-11/2,-1/4

b)11/2,1/4

6 0
2 years ago
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