1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Degger [83]
3 years ago
6

Use the quadratic formula to solve for the zeros: 2x^2 + 39 = -18

Mathematics
1 answer:
mars1129 [50]3 years ago
3 0

Answer:

18

Step-by-step explanation:

2

2

+

3

9

=

−

1

8

2x^{2}+39=-18

2x2+39=−18

2

2

+

3

9

−

(

−

1

8

)

=

0

You might be interested in
Adjust the equation so the line passes through the points. Y=x+1
lapo4ka [179]

Answer:

Slope=  

2.000

2.000

​  

=1.000

x−intercept=  

−1

1

​  

=−1.00000

y−intercept=  

1

1

​  

=1.00000

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    y-(x+1)=0  

STEP

1

:

Equation of a Straight Line

1.1     Solve   y-x-1  = 0

Tiger recognizes that we have here an equation of a straight line. Such an equation is usually written y=mx+b ("y=mx+c" in the UK).

"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.

In this formula :

y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  y-x-1  = 0 and calculate its properties

Graph of a Straight Line :

 

 

Calculate the Y-Intercept :

Notice that when x = 0 the value of y is 1/1 so this line "cuts" the y axis at y= 1.00000

 y-intercept = 1/1  =  1.00000  

Calculate the X-Intercept :

When y = 0 the value of x is 1/-1 Our line therefore "cuts" the x axis at x=-1.00000

 x-intercept = 1/-1  = -1.00000  

Calculate the Slope :

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 1.000 and for x=2.000, the value of y is 3.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 3.000 - 1.000 = 2.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     =  2.000/2.000 =  1.000  

Geometric figure: Straight Line

1.  Slope = 2.000/2.000 = 1.000

2. x-intercept = 1/-1 = -1.00000

3.  y-intercept = 1/1 = 1.00000

3 0
3 years ago
A real estate agent earned commission of $8,785 for selling a house. If his rate is 7%, find the selling price of the house.
VladimirAG [237]

Answer:

$125,500

Step-by-step explanation:

Make "x" equal the selling price of the house

7% of x is the commission --->

.07 * x = 8785

x= 8785/ .07

x= 125500

8 0
3 years ago
2. Trey measured the mass of some pebbles What is the combined mass of the pebbles that are 4 1/2 grams or more?
Romashka-Z-Leto [24]

Answer:

40

Step-by-step explanation:

3 0
3 years ago
Point m is located at 4,-2 what is located 2 units for point m
eimsori [14]

Answer:

None

Step-by-step explanation:

Given

m = (4,-2)

Required

Point 2 units from m

There are 4 possible points 2 units from m and they are:

m' = (4+2,-2) = (6,-2)

m" = (4,-2+2) = (4,0)

m'''= (4-2,-2) = (2,-2)

m'''' = (4,-2-2) = (4,-4)

From the graph, we have:

A = (4,2)

B = (-4,2)

C = (2,-3)

None of the points is 2 units from m

7 0
2 years ago
In a school, 4/5 of the students study a language.
Svet_ta [14]

Answer:

I agree with Emma

Step-by-step explanation:

above

4 0
3 years ago
Read 2 more answers
Other questions:
  • amy makes $7.50 an hour working at restaurant.her paycheck shows that she worked 15 hours over the past week.how much did amy ma
    11·1 answer
  • What is 5(6p+8)=30p+7+7
    5·1 answer
  • If h(x) = x – 7 and g(x) = x2, which expression is equivalent to (gxh)(5)??
    12·1 answer
  • 23 A circular fish pond has an area of 20m 2 Calculate the diameter of the fish pond.
    6·1 answer
  • A car enters a turnpike 22 miles north of a town. The car teavels north at an average speed of 64 miles per hour. How far is the
    11·2 answers
  • What is the value of x in the equation
    14·1 answer
  • If the equation y=2x-1 is translated down six units, the new equation would be...
    15·1 answer
  • A family wants to rent a car to go on vacation. Company A charges 70.50​$ and 16cents . Company B charges ​30.50$ and 8 cents .
    7·1 answer
  • 7. Which transformation is not an isometry?
    11·1 answer
  • How did the 5 become 15/4... kinda confuse can anybody help????????????
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!