All categories

3 years ago

Evaluate. 5 - x(x + 8)2, for χ- 4

Mathematics

1 answer:

BaLLatris [955]3 years ago

7 0

Answer:

x=7

idk if this is right but i hope it helps you

P.S. plz friend me im new to this :P :I

You might be interested in

How much will you have contributed to a Whole Life insurance policy that has a face value of $60,000 over a 40-year

boyakko [2]

Answer: The answer is $44,496. I got it right on the test. Sorry that I was late...

Step-by-step explanation:

6 0

3 years ago

6 friends are sharing a cake. The cake is cut into 15 pieces. How many pieces will each friend get if divided equally

ELEN [110]

Answer:

2.5 or 2 1/2

Step-by-step explanation:

15 divided by 6

4 0

3 years ago

R/12=1 9/10<br><br> Solve for R.

Marianna [84]

Let's first turn 1 9/10 into an improper fraction, which is 19/10

so if R/12 equa;s 19/10, cross multiply

10r equals 228

divide both sides by 10, you get r= 22.8

7 0

3 years ago

Neveah orders a square pizza. 34 34 of the pizza has pepperoni. 23 23 of the pepperoni also has green peppers. How much of the w

astra-53 [7]

Answer:

1/2

Step-by-step explanation:

Given that:

3/4 of pizza has pepperoni

2/3 of the pizza with pepperoni has green pepper ;

The fraction of the whole pizza that has both pepperoni and green pepper ;

Fraction with pepperoni = 3/4

Fraction of whole with green pepper and pepperoni : 2/3 of 3/4 = 2/3 * 3/4 = (2*3) / (3*4) = 6/12 = 1/2

8 0

3 years ago

A company manufactures two types of fishing rods, standard and folding. The cost of manufacturing 2 folding rods and 1 standard

Mrac [35]

Answer:

Step-by-step explanation:

A company manufactures two types of fishing rods, standard and folding. The cost of manufacturing 2 folding rods and 1 standard is $35. If 5 standard and 7 folding rods were manufactured, the cost would be $145. How much does it cost to manufacture each type of rod.

let S = standar rod

F= folding rod

2F + S =35

2F + S -2F =35 - 2F

or S = 35-2F

7F + 5S =145

7F + 5S -7F =145 -7F

or 5S =145-7F

Since S=35-2F

5S = 5X (35-2F)

5S = 175 -10F

which equals 145-7F

175-10F = 145-7F

175-10F +10F = 145 -7F + 10F

175 = 145 +3F

175 -145 =145 -145 + 3F

30 = 3F

F = 10

but S =35 - 2F

so S = 35 -2X10

S = 35-20 =15

check:

if F = 10 and S = 15

then 5S +7F should equal 145

5X15 + 7X10 = 75 + 10 =145

so F=10, S=15

7 0

2 years ago