Answer:
when two lines are parallel the two slopes are equal (m1 =m2)
when two lines are perpendicular the product of the slopes is equal to -1( m1m2= -1)
m1 =1st slope
m2= 2nd slope
using the formula y= mx +c
m1= -8/9
m2= 9/8
since m1 is not equal to m2 and -8/9 × 9/8 = -1
It is perpendicular
Step-by-step explanation:
PLS MARK BRAINLIEST
My backyard has a square garden and the area of the garden is 57 square feet. Are the lengths of each side of the garden rational? Why/Why Not?
Marsha has $400 in a savings account. The interest rate is 5% per year and is not compounded. How much will she have in total in 1 year?
The total amount in the account after 1 year will be $420
Based on the information given, the following can be deduced:
Principal = $400
Interest rate = 5%
Time = 1 year
Therefore, the simple Interest will be:
= PRT/100
= ($400 × 5 × 1)/100
= $2000/100
= $20
Therefore, the amount will then be:
= Principal + Interest
= $400 + $20
= $420
Therefore, the total amount is $420
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solve for u
-4+ u =-2
u=?
Answer:
u = 2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
[tex]-4 + u = -2[/tex] [tex]u - 4 = -2[/tex]Step 2: Add 4 to both sides.
[tex]u - 4 + 4 = -2 + 4[/tex] [tex]u = 2[/tex]Therefore, u = 2.
Which equation represents a line parallel to the line x-4y=-2
a: y=-4x - 2
b: y=-1/4 + 5
c: y= 1/4x - 3
d: y=4x - 8
Answer:
c
Step-by-step explanation:
the slope of x-4y=-2 is 1/4
PLEASE HELP ME!! I DON'T KNOW WHAT TO DO????
Answer:
Step-by-step explanation:
x-10=4
bring the 10 over and add it to the 4 and that equals 14 so
x=14 hope this helps have a great day
The length of a rectangle is 5 in longer than its width.
If the perimeter of the rectangle is 74 in, find its length and width.
Answer:
Length = 21
Width = 16
Step-by-step explanation:
We know that the formula for perimeter is:
P=2W+2L
And we also know that:
L=W+5
So then we put all that we know in the formula:
74=2W+2(W+5)
Now we expand the brackets and do some algebra:
74=4W+10 (-10)
64=4W (÷4)
16=W
Now that we know the width we can pop that into the length equation:
L=16+5
L=21
HOW to say 9,999,999,999 In word form how would you say it (SAY IT) if your 4th grades are smart and good for you but we are trying to find how to say 9,999,999,999 in word form (any grade can answer and lm fourteen)
Answer:
nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine
Answer:
nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine
Step-by-step explanation:
Hope it helped brainiest plz and thank you!!!!!!!!
My friend need urgent help!
Answer:
4
Step-by-step explanation:
Divide each value of y by the corresponding value of x.
20/5 = 4
40/10 = 4
80/20 = 4
200/50 = 4
All quotients are 4.
Answer: 4
-2.4 - 4.9=
It’s not 2.5
Answer:
-7.3
Step-by-step explanation:
You can't subtract a negative number. Enjoy and brainliest would make my day :D
Answer:
-7.3
Step by step explanation:
−2.4−4.9
=−2.4−4.9
=−2.4+−4.9
=−7.3
Mario has 3750 paper clips. Chi has 2993 paper clips. How many more paper clips does
Mario have than Chi?
Answer: Mario has 757 more paper clips than Chi.
Step-by-step explanation:
Subtract 2,993 from 3,750. The answer is 757.
Can anyone help ASAP!!!! Thanks
Answer:
rational / cannot / does not
Step-by-step explanation:
I couldn’t type it so I just took a picture. Please help me!! I’ll give you 25 points!
Answer:
It would be D.
Step-by-step explanation:
You have to collect like terms which would involve the 5[tex]\sqrt{7}[/tex] and -10[tex]\sqrt{7}[/tex] and do the same for the other 2
Pls help !! I will like your comments and answer !!!!!
Answer:
A) Dilated 150% then reflected across the x-axis
Step-by-step explanation:
By counting the squares of shape A, you can see that 2 squares = 100% and 1 square = 50%. You can then count 2 squares into shape B (because that is your starting point) and then count the remaining squares, which is 3. 3 squares is equal to 150% so we know there is a 150% dilation.
We can then also see shape A has been reflected across the x-axis to give shape B.
triangle abc is dilated with a scale factor of 1/3 label the angle measurements in triangle abc
Answer:
B=1 and the rest Im unsure of sorry hope this helps
Step-by-step explanation:
state the gradient and the y-axis intercept of
y=3x+7
Step-by-step explanation:
the slope (or gradient) of a line is the factor of x.
in our case here : 3
it is expressed as ratio y/x and represents the amount of units y changes (and via the sign in what direction), when x changes a certain amount of units (again, via the sign in what direction). like when going from a point 1 to a point 2.
so, here we have 3 = 3/1, and that means, when x changes by 1 unit to the right (positive), y changes 3 units up (positive).
the y-axis intercept is simply the point, where x = 0. clearly, any point with the x coordinate being unequal to 0 cannot be on the y axis.
so, here
y = 3×0 + 7 = 7
=>
the y-axis intercept point is (0, 7).
7 (-2) - 15 =
Find the value of the expression.
Answer:
-29?
Step-by-step explanation:
A tree is currently
2
feet tall and grows
1.3
feet per year. Which inequality represents the time, in
x
years, when the tree will have a height of at least
20
feet?
The inequality expression for the number of years when tree will be atleast 20 feets tall is x ≥14
Current height = 2 Growth rate = 1.3 feets per yearThe height of the tree after x years can be represented as a linear equation thus :
Height = 2 + 1.3xNumber of years when the tree will be 20 feets tall :
20 = 2 + 1.3x 20 - 2 = 1.3x 1.3x = 18x = 13.84The tree would be atleast 20 feets tall in 14 years x this can be expressed thus
x ≥14Learn more : https://brainly.com/question/18109354
what is the domain and range of y=4x+4
Answer:
all real numbers
Step-by-step explanation:
domain is all the possible numbers for x
here x can be any real number
range is all the possible numbers for y
here y can also be any real number based on y
so for both domain and range the answer is all real numbers
two speedboats leave the dock at the same time and travel in opposite directions. one travels 9 mi/hr faster than the other. After 2 hr the boats are 170 mi apart. How fast is each boat travelling ?
Answer: [tex]\frac{170}{X}[/tex]+[tex]\frac{170}{X-9}[/tex]=2
(=)17 0x +170x+1530=2x²+18x
(=)-2 x² +322x+1530=0
Δ=b²-4ac
Δ=115924
[tex]\sqrt{}[/tex]Δ=340,476>0
because Δ>0 so that 2 X
=>x₁=2 (true), x₂=-161(false)
X+9= 2+9=11
first travel 2 mi/hr
second travel 11 mi/hr
Step-by-step explanation:
Selena has been hired as a sales associate at Better Rooms furniture store. She has two salary options. She can choose to receive either a fixed salary of $850 per week or a salary of $400 per week plus a 6% commission of her weekly sales. Which solution set below represents the dollar amount of sales that she must generate each week in order for the option with commission to be the better choice? Let s represent the sales for the week
Answer:
Sales have to be more than $7,500.
Step-by-step explanation:
850 > 400 + 0.06s
850 - 400 < 0.06s
450/0.06 < s
7500 < s
1. What is the solution to the equation 3(x - 2)= 15?
Answer:
X=7
Step-by-step explanation:
Answer:
x=7
Step-by-step explanation:
3x-6=15
3x-6+6=15+6
3x=15+6
3x = 21
---- ----
3 3
x=7
45 is what percent of 60 as an equation
Answer:
75% of 60 = 45
Step-by-step explanation:
In order to find the answer to this question you need to divide the percentage of the number by one-hundred and then divide that number by the number the number you are trying to find the percentage of.
60/x=100/75
(60/x)*x=(100/75)*x
60=1.33333333333*x
(1.33333333333) to get x
60/1.33333333333=x
45=x
x=45
75% of 60 = 45
Hope this helps.
A car rental agency charges $70 per day, which includes 100 miles. For each mile over 100 miles, there is an additional cost of $0.40 per
Write an equation relating m, the number of miles driven, if the total cost for a one-day rental was $212.
Answer:
212=70+(m X 0.40)
If $212 is the total cost for a one-day rental, the number of miles driven is 455 miles.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
We have,
Cost of car rent per day for 100 miles = $70
Additional cost per mile = $0.40
Let m = number of miles driven
Total cost for one day rental = $212
The equation that represents the additional m = miles driven for a day that cost $212 is:
212 - 70 = 0.40m
142 = 0.40m
m = 142 / 0.40
m = 355
This means 355 additional miles were driven.
The number of miles driven for the day is:
= 100 + 355
= 455 miles
Thus if $212 is the total cost for a one-day rental, the number of miles driven is 455 miles.
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(secA - cosecA)^3+ 3secA.cosecA (secA - cosecA )
bru
Answer: what?
??????..???
PLEASE I NEED HELP ON THESE 3 QUESTIONS
(ILL GIVE BRAINLIEST TO THE BEST ANSWER TOO)
In Earth's southern hemisphere, the summer season is from December to March and winter is from June to September. The table shows the highest temperatures recorded at the South Pole for three different months.
Graph model:
South Pole Temperatures
Month Highest temperature (°F)
January 6
June –24
November –2
Each month's highest recorded temperature is plotted on the number line.
Which of these months had the lowest high temperature? (ignore this)
1. Write the three temperatures in order from least to greatest. Explain how you put the numbers in order.
2. Which month had the lowest high temperature?
3. Which month had the highest temperature?
Answer:
1: (-24, -2, 6) 2: June 3:January
Step-by-step explanation:
1: the closer the negatives get to 0 backwards, the higher the temperature is, and after 0 would be even higher.
2: -24 is the most far back from the other two
3: 2 of them are negatives and the other is positive so the positive number would be the highest temp
Answer:
1. -24,-2,6
We order this way as the value of an integer decreases when we go lower below 0
2. The lowest High temperature is in June when the temperature is -24
3. January has the highest temperature because the highest temperature was above 0 which was 6
Hope this helps!
y=4x-36
find the zero of each function by graphing
Answer: X = 9
Step-by-step explanation:
First insert the function into a graphing calculator.
We are trying to find the x intercepts, we substitute y=0.
With a graphing calculator look at where the line intercepts the x axis, (9,0) , and we find that x=9.
15^6*8^8(9)^8 what is it
Answer:
8.2263565e+21
Step-by-step explanation:
im smart
Although the actual amount varies by season and time of day, the average volume of water that flows over the falls each second is 3.2 x 10^5 gallons. How much water flows over the falls in an hour? Write the result in scientific notation. (Hint: 1 hour equals 3600 seconds)
Answer:
1.152 x 10^9 gal/hr
Step-by-step explanation:
Given:
3.2 x 10^5 gal / 1 sec
1 hr = 3600 s
Convert:
[tex]\frac{3.2 x 10^5 gal}{1 sec} * \frac{3600 sec}{1 hr}[/tex]
By this, seconds cancel out leaving us with gal/hr, which is what we need.
= 1152000000
Scientific Notation: 1.152 x 10^9
Please helppppppp :,(
Answer:
D
Step-by-step explanation:
Please mark brainliest
if eight was subtracted from the product of a number and five, the result is four more than the number. write an equation and solve to find the number
Answer:
3
Step-by-step explanation:
Let the number be x
5*x=5x
5x-8= 4 + x
4x =12
x= 3