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never [62]
3 years ago
10

(7x+3)(x-9) need help

Mathematics
1 answer:
Natalka [10]3 years ago
8 0
7x^2-63x+3x-27=0

Simplify. 

7x^2-60x-27=0

To find value of x, 7x+3=0
x-9=0 

x1=-3/7
x2=9

Substitute back in equation to find the answer either x1 or x2
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How long will it take Eniola to save $5,000 if she started with $500 and found a rate of 6. 2%? Round to the nearest whole numbe
konstantin123 [22]

Answer:

38.28 years

Step-by-step explanation:

The computation of the time period is shown below:

Given that

RATE = 6.2%

PV = $500

PMT = $0

FV = $5,000

The formula is shown below:

= NPER(RATE;PMT;-PV;FV;TYPE)

After applying the above formula, the time period is 38.28 years

Hence, in order to save $5,000 it would take 38.28 years

5 0
3 years ago
tom orders a pizza for dinner. it is cut in 12 slices. if tom ate 5/6 of the pizza, he ate 5 copies of 1/6 of the pizza. how man
vladimir1956 [14]

Answer:

10 slices

Step-by-step explanation:

Each 1/6 eqauls 2/12

if he ate 5/6....

5/6x2 equals 10/12

he ate 10 slices

4 0
3 years ago
There are 8 water bottles, and each bottle is 3/4 filled with water. If we pour all the water together, how many water bottles c
valkas [14]

Answer:

6

Step-by-step explanation:

8 * 3/4 = 24/4  = 6 WATER BOTTLES

8 0
2 years ago
Lanya's house is located at (2 2/3, 7 1/3) on a map. The store where she works is located at (-1 1/3, 7 1/3). what is the distan
notka56 [123]

Answer:

Option A: 4 units is the correct answer.

Step-by-step explanation:

Given that:

Layana's house is located at (2\frac{2}{3}, 7\frac{1}{3})

Store is located at (-1\frac{1}{3},7\frac{1}3})

We can find distance between two points by using distance formula.

S = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2

The points can also be written as;

House (8/3, 22/3)

Store (-4/3, 22/3)

Putting values in the formula.

S = \sqrt{\frac{8}{3}-(-\frac{4}{3}))^2+(\frac{22}{3}-\frac{22}{3})^2

S = \sqrt(\frac{8}{3}+\frac{4}{3}+0

S = \sqrt{(\frac{8+4}{3})^2

S = \sqrt{(\frac{12}{4})^2

S = \sqrt{(4)^2

S = 4 units

Hence,

Option A: 4 units is the correct answer.

7 0
3 years ago
2(3c + 3) < 6c + 9
Usimov [2.4K]
<h3>Answer: B. All real numbers</h3>

Work Shown:

2(3c+3) < 6c+9

6c+6 < 6c+9 .... distribute

6c+6-6c <6c+9-6c .... subtract 6c from both sides

6 < 9 ... note the c terms go away entirely

We're left with a statement that is always true since 6 is always less than 9 regardless of what value of c we pick. So there are infinitely many solutions. Any real number can replace c to get a true statement.

4 0
4 years ago
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