Answer:
42.8
Step-by-step explanation:
42.763
You count back from the decimal point (the dot) by one and that is your one decimal place.
Numbers 5 - 9, when rounded up add one to the number above them and they and all numbers behind them turn into a zero. e.g 56 rounded to the nearest ten will give you 60
Numbers 0-4, when rounded up do not add one number above them but yet they and all numbers behind them still turn into zero. e.g 54 rounded to the nearest ten will give you 50.
So number 6 when rounded up adds one to 7. Then 6 and 3 turn into zero
3. Solve the system by graphing.
4x + 2y = 2
-2x + y = -3
Sin(44) = Cos
.............................
Answer:
46
Step-by-step explanation:
can someone help me please i need help..! problem: x/-8+15>23
Answer:
X<-64
Step-by-step explanation:
What is a Coefficient?Immersive Reader
(1 Point)
A letter
A number on its own
Terms whose variables and exponents are the same
The number in a term next to the variable.
Step-by-step explanation:
the number in a term next to the variable
example 4x 4 is coefficient
hope it's helpful ❤❤❤
THANK YOU.
Somebody help me plz!!! I will appreciate it!
Answer:
4/3
Step-by-step explanation:
Andrew drove 6 hours to get to his uncle's house. He drove at an average speed of 48 miles per hour.
Answer:
I guess that we want to find the displacement between Andrew's house and his uncle's house.
Assuming that he drove in a straight line, we can use the relationship:
Distance = Speed*Time.
We know that he drove for 6 hours, and the speed was 48 miles per hour, then the distance will be:
distance = 6h*48mi/h = 288 mi
This means that the total distance is 288 miles.
Answer:
288
Step-by-step explanation:
The radius of the circle is something the length of its diameter
Answer:
radius of a circle is half of its diameter
Find a:
(x+3)(x+a)(x+7)=x³+15x²+71x+105
Answer:
a = 5
Step-by-step explanation:
(x+3)(x+a)(x+7)=x³+15x²+71x+105
(x+3)(x+a)(x+7) = (x²+10x+21)(x+a) = x³ + (10+a)x² + (21+10a)x + 21a
21a = 105
a = 5
check: 21 + 10a = 71 ... 71x
10 + q = 15 .... 15x²
1. A piece of wire that is 28 inches long is cut into two pieces, each of which is then bent into the shape of a
square. The larger square has side lengths that are three inches longer than the smaller square.
(a) If x is the side length of the smaller square and y is the side length of the larger square, write a system of
equations that models this scenario.
(b) Solve the system of equations and determine the lengths of the two pieces of wire.
Answer:
1: So one side is 5
2: Other side is 2
Step-by-step explanation:
1)
4(x+3)+4x=28
Solve
4x+12+4x=28
Combine
8x+12=28
Isolate
8x=16
Isolate
x=2
Substitute
4(2+3)=20
4*2=8
Now find each side
20/4=5
8/4=2
Please answer the question. The picture is right below.
(3x + 3y = -21
(x + y = -7
Need help asap
Answer: x= -8 and y= 1
Step-by-step explanation:
First, let's work on your first equation,3x+3y=-21
This means, see if it can be simplified at all before attempting to solve it.
Multiply x and 3
Multiply x and 1
The x just gets copied along.
The answer is x
x
3*x evaluates to 3x
Multiply y and 3
Multiply y and 1
The y just gets copied along.
The answer is y
y
3*y evaluates to 3y
3*x+3*y evaluates to 3x+3y
Because of the minus sign
21 becomes - 21
The answer is -21
So, all-in-all, your first equation can be written as: 3x+3y = -21
Now, let's work on your second equation,x+y=-7 x+y evaluates to x+y
Because of the minus sign
7 becomes - 7
The answer is -7
So, all-in-all, your second equation can be written as: x+y = -7
After this initial survey of the equations, the system of equations we'll set out to solve is:
3x+3y = -21 and x+y = -7
Let's start by solving 3x+3y = -21 for the variable x.
Move the 3y to the right hand side by subtracting 3y from both sides, like this:
From the left hand side:
3y - 3y = 0
The answer is 3x
From the right hand side:
The answer is -21-3y
Now, the equation reads:
3x = -21-3y
To isolate the x, we have to divide both sides of the equation by the other variables
around the x on the left side of the equation.
The last step is to divide both sides of the equation by 3 like this:
To divide x by 1
The x just gets copied along in the numerator.
The answer is x
3x ÷ 3 = x
To divide -21-3y by 3
divide each term in -21-3y by 3 term by term.
-21 ÷ 3 = -7
To divide y by 1
The y just gets copied along in the numerator.
The answer is y
-3y ÷ 3 = -y
The solution to your equation is:
x = -7-y
Next, let's solve x+y = -7 for the variable y.
Move the x to the right hand side by subtracting x from both sides, like this:
From the left hand side:
x - x = 0
The answer is y
From the right hand side:
The answer is -7-x
Now, the equation reads:
y = -7-x
To isolate the y, we have to divide both sides of the equation by the other variables
around the y on the left side of the equation.
and this is the final solution to your equation.
Now, plug the earlier result, x=-7-y, in for x everywhere it occurs in
y=-7-x.
This gives y=-7-(-7-y). Now all we have to do is solve this for y,to have our first solution.
Because of the minus sign
7 becomes - 7
The answer is -7
Because of the minus sign
7 becomes - 7
The answer is -7
-7-y evaluates to -7-y
-7 - -7 = 0
The answer is y
-7-(-7-y) evaluates to y
Move the y to the left hand side by subtracting y from both sides, like this:
From the left hand side:
y - y = 0
The answer is 0
From the right hand side:
y - y = 0
The answer is 0
Now, the equation reads:
0 = 0
To isolate the y, we have to divide both sides of the equation by the other variables
around the y on the left side of the equation.
The last step is to divide both sides of the equation by 0 like this:
Sorry, can't divide by zero! Stop! Everything below this line is wrong.
0 ÷ 0 = 1
Sorry, can't divide by zero! Stop! Everything below this line is wrong.
0 ÷ 0 = 1
The solution to your equation is:
1 = 1
Lastly, to find the solution for x, we plug this answer for y into the earlier result that
x=-7-y.
This gives x=-7-(1). Now, simplify this.
Because of the minus sign
7 becomes - 7
The answer is -7
-7-(1) evaluates to -8
x= -8
can someone please help me with this? I know it’s simple but I’m having a really hard time doing it .
Radius= 12÷2 => 6 cm
diameter= 12 cm
circumference = 2πr
=> 2× 22/7 × radius
=> 37.7 cm
Hope it helps ^^
Answer:
Step-by-step explanation:
Can I get brainliest??
Pls help I’ll give brainliest
Answer:
........
Step-by-step explanation:
i can't open the picture which you posted
sorry
Which expression is equivalent? 2x + 3 − 5x + 2 Question 1 options: -3x + 5 -3x +2 7x + 5 5x - 3 20POINTS!!!!!!
Answer:
-3x+5
Step-by-step explanation:
hope this was helpful ! <3
I need help asap help
Answer:
$1.75
Step-by-step explanation:
Lin runs 5 laps around a track in 6 minutes. c. If Lin runs 21 laps at the same rate, how long does it take her?
Answer:
It would take her to run 25.2 minutes.
Step-by-step explanation:
▪Proportion.
[tex] \frac{5 \: laps}{6 \: minutes} = \frac{21 \: laps}{x} \\ \\ \frac{126}{5} = \frac{5x}{5} \\ \\ 25.2 = x[/tex]
▪Happy To Help <3
Which angle in ABC has the largest measure?
Α. Α
B. B
C. C
D. Cannot be determined
please help me with this
Answer:
Equation of Parallel line: y = -5x-34Equation of Perpendicular line: y = 1/5x - 14/5Step-by-step explanation:
a) Equation of Parallel line to the given line and passes through the point (-6, -4)
We know that the slope-intercept form of the line equation is
[tex]y = mx+b[/tex]
where m is the slope and b is the y-intercept
Given the line
y = -5x+4
comparing with the slope-intercept form of the line equation
The slope of the line = m = -5
We know that parallel lines have the same slope. Thus, the slope of the line parallel to the line y = -5x+4 will also be: -5
So, the equation of the line parallel to the given line and passes through the point (-6, -4) will be:
Using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope of the line and (x₁, y₁) is the point
substituting the values m = -5 and the point (-6, -4)
y - (-4) = -5(x-(-6))
y+4 = -5(x+6)
y+4 = -5x-30
y = -5x-30-4
y = -5x-34
Therefore, the the equation of the line parallel to the given line and passes through the point (-6, -4) will be:
y = -5x-34Hence:
Equation of Parallel line: y = -5x-34
a) Equation of Parallel line to the given line and passes through the point (-6, -4)
Given the line
y = -5x+4
comparing with the slope-intercept form of the line equation
The slope of the line = m = -5
We know that a line to perpendicular another line contains a slope that is the negative reciprocal of the slope of the other line, such as:
The slope of new line = – 1/m = -1/-5 = 1/5
So, the equation of the line perpendicular to the given line and passes through the point (-6, -4) will be:
Using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope of the line and (x₁, y₁) is the point
substituting the values m = 1/5 and the point (-6, -4)
y - (-4) = 1/5 (x-(-6))
y+4 = 1/5 (x+6)
Subtract 4 from both sides
[tex]y+4-4=\frac{1}{5}\left(x+6\right)-4[/tex]
[tex]y=\frac{1}{5}x-\frac{14}{5}[/tex]
Therefore, the equation of the line perpendicular to the given line and passes through the point (-6, -4) will be:
[tex]y=\frac{1}{5}x-\frac{14}{5}[/tex]
Hence:
Equation of Perpendicular line: y = 1/5x - 14/5
what is 3/8 + 2/3 = ______ + 3/8 help now asap pls
The acute angles of a right triangle always add up to how many degrees?
Triangle ABC is isosceles with AB = AC.
Angle BAC = 110° and the area of the triangle is 85cm2.
Calculate AC
If Triangle ABC is isosceles with AB = AC is: 13.45 cm.
Triangle ABC∆ABC = 85 cm² .
(1/2) ×AC×AB ×sinA = 85 cm²
AC=AB=x
Hence:
85= (1/2)x²×sin110°
A² × sin 110° = 170
A² ×0.94 = 170
A² = 170/0.94
A² =√ 180.85
A= 13.45 cm
Therefore if Triangle ABC is isosceles with AB = AC is: 13.45 cm.
Learn more about Triangle ABC here:https://brainly.com/question/2108210
#SPJ1
Chef Leon is making 14 dozen cookies for the school bake sale. He uses 712 cups of pecans to make the cookies. How many cups of pecans, to the nearest hundredth, are in each cookie?
Answer:
Its D Dude!
Step-by-step explanation:
POSSIBLE PODITS. 14
6cm
15cm
8cm
20cm
A
What is the similarity
12cm
16cm
ratio from Figure A to Figure B?
Similarity Ratio
HELP ME PLZZZZZ!!! Im so clueless!!!!
Answer:
similarity ratio is 3/5
Express the following quantities as ordinary decimal numbers: (use solution)
:: The estimated world population for the year 2000 was 6.130 x 10⁹.
Step-by-step explanation:
[tex]6.130 \times {10}^{9} = 9130000000[/tex]
6.549, 13/2, 6 6/11, 6.77 least to greatest.
Find the two solutions for square root of 25
Answer:
5
Step-by-step explanation:
Answer:
5, -5
Step-by-step explanation:
5, -5
not much else to it
I need the answer and explanation pls
Answer:
86°
Step-by-step explanation:
- Angles on a straight line add up to 180° always
180° - 94° = x° = 86°
180-94=86
have a good day :)
Help me, please!
Which point is in the same quadrant as (2, -4)?
Answer Choices:
(1, 2)
(-3, 4)
(-4, -2)
(1, -10)
WILL GIVE BRAINLIEST. PLEASE ANSWER QUICKLY!
Which expression can be modeled using the number line?
(Look at photo for number line)
A. 1/10 divided by 7
B. 7/10 divided by 1/10
C. 1/10 divided by 7/10
D. 7 divided by 7/10
Answer:
i believe it is the first answer
Step-by-step explanation:
Solve for m:
2r= m/r
m = 2r
m = 2r squared by 2
m=r
m = 2
