Solve the quadratic equation.
x^2 = -8x - 7
A. {7, -1}
B. {-1, -7}
C. {8,1}
D. {7,1}
E. (-8, -1}
Answer:
B, (-1, -7)
Step-by-step explanation:
HELP ASAP!! Verona is solving the equation –3 + 4x = 9. In order to isolate the variable term using the subtraction property of equality, which number should she subtract from both sides of the equation? a. –4 b. –3 c. 3 d. 4
Answer:
C, 3
Step-by-step explanation:
you add 3 then divide by 4
Please help it would help out alot
Answer:
p = 2mr+q
Explanation:
You have to get p by itself. Multiply each side by r. Then add q to each side. You should get 2mr + q = p.
!!30 POINTS!!
What is the intersection of planes ABG and BCD in the figure below?
Evaluate y = 3x - 5 when x = 6
y=13
Step-by-step explanation:
y=3x-5
y=3(6)-5
y=18-5
y=13
6t+5>23 I need this inequality solved thanks :))
Answer: t>3
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form: t>3
Interval Notation: (3,∞)
Step-by-step explanation:
Write the original inequality. 6t + 5 > 23
Subtract 5 from each side to undo addition. 6t > 18
Divide each side by 6 to undo multiplication. t > 3
So our answer is t > 3.
Lionel computed the average rate of change in the depth of a pool over a two-week interval to be zero. Which statement must be true? The pool must have been empty for the entire interval. The pool must have been the same depth at the start of the interval as it was at the end of the interval. The pool must have been deeper at the end of the interval than it was at the start of the interval. The pool must have been more shallow at the end of the interval than it was at the start of the interv
Answer:The pool must have been the same depth at the start of the interval as it was at the end of the interval.
Step-by-step explanation:
The average rate of change is calculated as:
[final value - initial value] / time interval.
Then, the average rate of change does not take into account intermediates values, and you cannot draw any conclusion about such intermediate values.
In the given case you have:
average rate of change in depth = [final depth - initial depth] / 2 weeks.
0 = [final depth - initial depth] / 2 weeks.
⇒ 0 = final depth - initial depth
⇒ final depth = initial depth.
That is why the conclusion is the second statement of the answer choices: the pool must have been the same depth at the start of the interval as it was at the end of the interval.
In between the pool might have been deeper, more shallow, empty or change in any form, since the average rate of change does not tell the full history but only the net change.
Answer:
The pool must have been the same depth at the start of the interval as it was at the end of the interval.
Step-by-step explanation:
got it right on edge.
Define the variables you will use in your equation. (1 point) Let one variable be the distance away from the surface and the other variable be the temperature.
Answer:
whats the answer?
Step-by-step explanation:
The equation that represent the situation would be; 15+25d=t. Here the variable are d for distance and t for temperature.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
A mathematical equation is a statement with two equal sides and an equal sign in between. An equation is, for instance, 4 + 6 = 10. Both 4 + 6 and 10 can be seen on the left and right sides of the equal sign, respectively.
We are given that the surface temperature averages at 15 degrees Celsius and increases 25 degrees Celsius with each kilometer of depth.
We can conclude that the initial value is 15 it increases(+) by 25 to each kilometer(distance=d) of depth.
The equation becomes
15+25d=t.
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The complete question is;
The surface temperature averages at 15 degrees Celsius and increases 25 degrees Celsius with each kilometer of depth. Define the variables you will use in your equation. Let one variable be the distance away from the surface and the other variable be the temperature.
A rectangular pan has a length that is the width. The total area of the pan is 432 in.2. What is the width of the cake pan? A = lw 10.4 in. 13.9 in. 18 in. 24 in.
Answer:
Let width = w
length = 4w/3
Area = 432 = length*width = w*4w/3
4w^2/3 = 432
w^2 = 432*3/4 = 324
w = 18
so the width of the cake pan is 18 inches.
The width of the rectangular pan is 18 inches and this can be determined by using the formula of the area of the rectangle.
Given :
A rectangular pan has a length that is 4/3 the width.
The total area of the pan is 432 square inches.
The following steps can be used in order to determine the width of the cake pan:
Step 1 - The formula of the area of the rectangle can be used in order to determine the width of the cake pan.
Step 2 - The area of a rectangle is given below:
[tex]\rm A = LW[/tex]
where L is the length and W is the width of the rectangle.
Step 3 - According to the given data, the length is 4/3 the width.
Step 4 - Substitute the values of the known terms in the above expression.
[tex]\rm 432 = w\times \dfrac{4w}{3}[/tex]
Step 5 - Simplify the above expression.
[tex]\rm 432 = \dfrac{4w^2}{3}[/tex]
[tex]\rm w^2 = 324[/tex]
w = 18 inches
Therefore, the correct option is C).
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Is 0.625 greater than 0.75
Answer:
no
Step-by-step explanation:
1- Find the slope of the line: y = -4/3 X-1*
m= -1 m= -4 m= -4/3 m= 4 v
Slope-intercept form: y = mx + b
m = the slope
y = the y-intercept
In our problem,
y = -4/3x - 1
m = -4/3
The slope is -4/3
What is the equation of the line that passes through (0, 3) and (7,0)?
Answer:
Step-by-step explanation:
(0 - 3)/(7 - 0)= -3/7
y - 0 = -3/7(x - 7)
y = -3/7x + 3
Write 10 3/8 as a decimal
Answer:
10.375
Step-by-step explanation:
3/8ths equal 0.375 and then you have ten as the whole number therefore you add the lower number onto the whole number and then you get your answer.
Solve graphically the inequality 2x + y >= 2
Answer:
y>=2-2x
Step-by-step explanation:
hope this helps
Which of the following is a figure consisting of two rays with the same endpoint? Angle Circle Line Vertex
Answer:Angle
Step-by-step explanation:
The angle is the figure consisting of two rays with the same endpoint option (A) angle is correct.
What is an angle?When two lines or rays converge at the same point, the measurement between them is called an "Angle."
It is given that
The figures are:
AngleCircleLineVertexAs we know the circle can be described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)
From the definition of the angle; two lines or rays converge at the same point.
Thus, the angle is the figure consisting of two rays with the same endpoint option (A) angle is correct.
The question is incomplete.
The complete question is in the picture, please refer to the attached picture
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Tenths
N Hundredths
w Thousandths
4.1.23
Which statements for 4.123 are true?
Check all that are true.
The digit 1 is in the tenths place.
The digit 2 is in the hundredths place.
The digit 3 is in the thousandths place.
The digit 3 is in the hundredths place.
The digit 2 is in the tenths place.
Answer:
A, B, and C
Step-by-step explanation:
Very simple math. I learned this in second grade.
Help me please thank you
It takes 31 pounds to plant 5 acres how many pounds are needed to plant 1 acre?
Answer:
6.2 Pounds
Step-by-step explanation:
Divide 31 by 5 to get the number for one acre. The answer is 6.2.
Hope this helps! :)
Find the domain and range of the following absolute value functions. fx)=|x-1|+2 I’ll mark brainliest to whoever answers first
Answer:
Domain is All Real x.
Range is f(x) ≥ 2.
Step-by-step explanation:
The vertical lines about the x - 1 means the Absolute value ( always positive).
|x - 1| will always be positive or 0 and it's graph is shaped like a V with the vertex at (1, 0)
The + 2 will move the graph up 2 units so the vertex becomes (1, 2).
Find two consecutive even integers such that six times the first equals five times the second.
Answer:
4 and 6 are the two consecutive even integers
Step-by-step explanation:
Hi,
Let x represent the smaller of the two consecutive even integers, (x+2) the other
Write as we Read***
6x = 4(x+2)
solve for x
6x = 4x + 8
2x = 8
x = 4
checking our answer
6*4 = 4*6 = 24
I WILL GIVE YOU BRAINLIEST How do you evaluate cube roots and square roots?
Answer:
Step-by-step explanation:
Use square root and cube root symbols to represent solutions to equations of the form x^2 = p and x^3 = p, where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes. And know that the square root of 2 is irrational.
Hope this helps! ^^
1/2z + 5 = 11 What is Z?
1/2 is a fraction.
Answer:
12
Step-by-step explanation:
Subtract 5 from both sides to get the equation
1/2z=6
Then, multiply both sides by two.
z=12
Z equals 12 because when you split it in half you will get 6 as the whole number. and 6 plus 5 = 11
5^x + 5^x+1 = 150
Find x
Answer:
This might help u...
Find the midpoint of the segment with the following endpoints.
(-5,5) and (-10,2)
Answer: did you ever get the answer? i’m doing the same problem rn and i have no idea
Step-by-step explanation:
5) through: (-3, 3), slope = 0
Answer:
3
Step-by-step explanation:
We know that -3 is on the x axis and 3 is on the y axis.
and the y axis usually determines if you are going to have a positive slope or negative since it would either rise or decrease. In this cause (-3, 3) shows that 3 is going to be our slope.
Answer:
y=3
Step-by-step explanation:
In a normal equation, y=mx+b, m=slope. If slope=0 in this equation, then it is safe to say that the equation is y=b. Since the Y coordinate is 3, then we can safely assume that the equation is equal to y=3
A coordinate plane with a line passing through the points (0, negative 4) and (2, 2).
What is the equation of the graphed line written in standard form?
–3x + y = –4
y = 3x – 4
y + 3x = 4
3x – y = 4
Answer:
The answer is D
Step-by-step explanation:
The only logical explanation
Equation of the graphed line passing through the points (0, - 4) and (2, 2) is equals to [tex]y = 3x - 4[/tex].
What is coordinate plane?" Coordinate plane is defined as the two dimensional plane formed by number line named x-axis and y-axis."
Formula used
Standard equation of the line
[tex]\frac{y-y_{1} }{x-x_{1} } =\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
According to the question,
Points passing through coordinate plane,
[tex](x_{1} ,y_{1} ) = (0,-4)\\\\(x_{2} ,y_{2} ) = (2,2)[/tex]
Substitute the coordinates in the formula to get the equation of line ,
[tex]\frac{y-(-4) }{x-0 } =\frac{2-(-4) }{2-0}[/tex]
⇒ [tex]\frac{y+4 }{x } =\frac{6 }{2}[/tex]
⇒[tex]y + 4= 3x[/tex]
⇒[tex]y=3x-4[/tex]
Hence, the equation of the line is [tex]y=3x-4[/tex].
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how do you simplify -2
It's already simplified.
g(x)= - 4x - 24 PLEASE HELP
Answer:
the answer got that would be -4
Solve.
9.4 = - t/3.5
t =
solve for t is t= 329/10
Write an absolute value equation that has the given solution.
- 2 and 2
Answer:
|4| - 2 = 2
|4| - 6 = -2
Step-by-step explanation: