All categories

3 years ago

Plz Wegnerkolmp2741o help me

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

8 0

Answer:

a = 7/6 a = -1/5

Step-by-step explanation:

30 a^2 - 7 = 29a

Subtract 29a from each side

30 a^2 -29a- 7 = 29a-29a

30 a^2 -29a- 7 = 0

Factor

( -7 ) ( +1) =0 to get -7

We need to determine what goes in the first part

5*7 = 35 - 6 = 29

( 6a -7 ) ( 5a +1) =0

Using the zero product property

6a -7 =0 5a+1 =0

6a = 7 5a = -1

a = 7/6 a = -1/5

You might be interested in

The sum of the angle measures of any triangle is 180 degrees. find the angle measures of a triangle if the second angle measures

MissTica

A+b+c= 180
a = ?
b = 2a - 10 (twice a minus 10)
c = b + 25 (25 more than b)
Substitute for b
c = (2a-10) + 25
Now substitute back into a+b+c=180
a + (2a-10) + (2a-10+25) = 180
Eliminate the parentheses
a + 2a - 10 + 2a - 10 + 25 = 180
Combine like terms
5a + 5 = 180
Subtract 5 from both sides
5a = 175
Divide both sides by 5
a = 35
Substitute into the equation for b.
b = 2a -10 = 2*35 - 10 = 70 - 10 = 60
Add 25 to b to get c.
c = 60 + 25 = 85Check by adding them up.
35 + 60 + 85 = 180
Done.

3 0

3 years ago

A restaurant chain had 15,250 locations in 1975. By 2000, there were 21,655 locations. What was the percent increase in location

jek_recluse [69]

It is given in the problem that in 1975, the number of restaurants chain is 15,250.
It is also given in the problem that 2000, the total number of restaurants is 21, 655. Therefore, the solution is is shown below:
% increase= ((# of restaurants is year 2000 - # of restaurants in year 1975)/number of restaurants in year 2000) * 100
% increase = (21,655-15250)/21,655 *100
% increase = 29.58%
Answer is 29.58%

3 0

3 years ago

What is the oppiste of 9

julia-pushkina [17]

Answer:

6 probably lol

9=6

6=9

hehehe

3 0

3 years ago

(8a + 3) + (a + 2)

Ierofanga [76]

The answer is 9a+5. All you have to do is combine like terms:)

4 0

3 years ago

2. The volume of both of these trapezoidal prisms is 24 cubic units. Their

Valentin [98]

Answer:

area of a trapezoidal base of each prism with heights 6 and 8 units are 4 square units and 3 square units respectively

Step-by-step explanation:

Let us first be aware of formula of volume for any regular geometrical figure.

Fundamental formula for volume for any regular geometrical figure is.

volume = area of cross section of object* height of object (A)

In the problem stated area of cross section of object will be area of a trapezoidal base.

Given in the question is

Volume of both the trapezoidal prisms = 24 cubic units

*************************************************************************************

For prism with height 6 unit

Substituting the value of height and volume in formula for trapezoidal prisms

24 = 6 * area of a trapezoidal base

=> area of a trapezoidal base = 24/6 = 4 square units

*************************************************************************************

For prism with height 8 unit

Substituting the value of height and volume in formula for trapezoidal prisms

24 = 8 * area of a trapezoidal base

=> area of a trapezoidal base = 24/8 = 3 square units

*************************************************************************************

Therefore area of a trapezoidal base of each prism with heights 6 and 8 units are 4 square units and 3 square units respectively.

4 0

3 years ago