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gregori [183]
3 years ago
11

Evaluate the expression for the given values 5x + 3y when x=3 and y = 5

Mathematics
1 answer:
Leni [432]3 years ago
7 0

Answer:

30

Step-by-step explanation:

Using the substitution method

5(3) + 3(5) =

15 + 15 = 30

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Pls help:) (geometry)
dybincka [34]

Answer:

see explanation

Step-by-step explanation:

(15)

Since BE bisects ∠ ABD then ∠ DBE = ∠ ABE, thus

8x - 14 = 6x + 2 ( subtract 6x from both sides )

2x - 14 = 2 ( add 14 to both sides )

2x = 16 ( divide both sides by 2 )

x = 8

Thus ∠ ABE = 6x + 2 = 6(8) + 2 = 48 + 2 = 50°

(16)

Since BE bisects ∠ ABD then ∠ ABE = ∠ DBE = 12n - 8 and

∠ ABD = ∠ ABE + ∠ DBE, that is

22n - 11 = 12n - 8 + 12n - 8 = 24n - 16 ( subtract 24n from  both sides )

- 2n - 11 = - 16 ( add 11 to both sides )

- 2n = - 5 ( divide both sides by - 2 )

n = 2.5

Thus

∠ EBD = 12n - 8 = 12(2.5) - 8 = 30 - 8 = 22°

7 0
4 years ago
The table shows the annual consumption of cheese per person in the United States for selected years in the 20th century. Let x =
Murljashka [212]
<span>y = 0.0000872x^3 - 0.00989x^2 + 0.403x + 1.192</span>
8 0
3 years ago
Read 2 more answers
In a survey of 1000 eligible voters selected at random, it was found that 100 had a college degree. Additionally, it was found t
o-na [289]

Answer:

A. 8%

B. 39.6%

C. 58.4%

D. 41.6%

Step-by-step explanation:

Computation to determine the probability of eligible voter selected at random

First step is to Draw up a contingincy table which will include Rows = Degree/No degree

and Columns= Vote/Not vote

..............Vote..No vote

Degree 80...20...100

(80%*100=80)

(100-80=20)

No Degree 504..396..900

(1000-100=900)

(56%*900=504)

(504-900=396

Totals 584..416...1000

(80+504=584)

(20+396=416)

(900+100=1,000)

Summary

..............Vote..No vote

Degree 80...20...100

No Degree 504..396..900

Total Totals 584..416...1000

A. Calculation to determine the probability of The voter had a college degree and voted in the last presidential election.

P = 80/1,000

P=0.08*100

P=8%

Therefore the probability of The voter had a college degree and voted in the last presidential election will be 8%

B. Calculation to determine the probability of The voter did not have a college degree and did not vote in the last presidential election.

P =396/1000

P=0.396*100

P=39.6%

Therefore the probability of The voter did not have a college degree and did not vote in the last presidential election will be 39.6%

C. Calculation to determine the probability if The voter voted in the last presidential election.

P = 584/1,000

P=0.584*100

P=58.4%

Therefore the probability if The voter voted in the last presidential election will be 58.4%

D. Calculation to determine the probability if The voter did not vote in the last presidential election.

P = 416/1000

P=0.416*100

P=41.6%

Therefore the probability if The voter did not vote in the last presidential election will be 41.6%

8 0
3 years ago
Hi I was having some problem with this question, its been a while since I had been in geometry. I think you foil, but Im not sur
DochEvi [55]
First, I would distribute the 2 out to the (x+4). 

2x+8. 

Next, use the foil method to multiply together 2x+8 and (x+3). 

2x^2 +14x+24. 

Do the same process for the other side. 

3(x+2)= 3x+6 

(3x+6)(x-1)= 3x^2+3x-6

Set the remaining products of each side of the equation equal to each other. 

2x^2 +14x+24=3x^2+3x-6. 

Now you must cancel out one side to make the equation equal to zero. Do this by doing the inverse operation on one side of the equation (each value with their like term). I am going to subtract the left side values from the right: 

This means: 
3x^2 minus 2x^2 equals 1x^2 (or just x^2).    

3x minus 14x equals -11x 

-6 minus 24 equals -30 

The equation should now look like this: 

0=x^2-11x-30

Reverse the order to get zero on the right side: 

x^2-11x-30=0

Hope this helps! Sorry if I made any careless mistakes (^^;)


7 0
4 years ago
1 fence is 10 feet high one fence is 8 feet high. What is the percent of change
d1i1m1o1n [39]

Answer: 80%

Step-by-step explanation:

10×8

4 0
3 years ago
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