Answer:
y = -4x - 7
Step-by-step explanation:
we use the slope intercept formula given by; y = mx + b
b = y intercept, which is when x = 0
m = slope
so they tell us the slope.. we just need to find b - the y intercept.
y = mx + b
plug in your coordinates (-2,1)
1 = -4(-2) + b
1 = 8 + b
1 - 8 = b
-7 = b
put it all together.
y = -4x - 7
Sasha made cups of lemonade to sell at her stand. She sold 9 cups of lemonade in the first hour. For each hour after that, she sold five cups. She was outside for a total of 4 hours. How many cups of lemonade did she sell?
Answer:
first hour=9 cups
the next three hours,five cups each=15 cups
15+9=24 cups
Which expression is equivalent to 8(x + 2)?
(A was wrong) C 8x + 16
B 8 + x + 8 + 2 D 8x + 10
An adult elephant drinks about 225 liters of water each day
Boden's account has a principal of $700 and a simple
interest rate of 3.7%. Complete the number line. How much
money will be in the account after 4 years, assuming Boden
does not add or take out any money?
Answer:
823.2
Step-by-step explanation:
Interest = 700 × 4.4/100 × 4 = 123.2
Balance = Principle + interest
700 + 123.2 = 823.2
Answer - 823.2
Hope this helps!!!
Fill in the missing reason in proof.
Answer:
SASStep-by-step explanation:
As per steps given the congruent pairs are:
AB and ACBD and CDAngle B and angle CSo two sides and included angle - it represents side-angle-side or SAS congruency theorem
Please help i was crying :(
Also there is another one
“Subtract. Write Your answer in simplest form” which is: 6 3/4 - 2 3/20
Answer:
is it 4 3/5 it might be
Step-by-step explanation:
What is the value of b in the triangle shown below?
a.-4in
b.4in
c.+4in
d.no solution
what is the length of a chord at a distance for 4 cm away from the centre of a circle of radius 5 cm
See attachment for math work.
We must reject x = -3 because distance is positive.
The value of x is 3.
Chord = 2x
Chord = 2(3)
Chord = 6 cm
happy holidays! please help me, it's algebra 2!
Answer:
Answer Choice B
Step-by-step explanation:
f(x) is just another way of saying y=.
To inverse, just flip the x & y and isolate the y variable.
[tex]x=-y^3-9\\x+9=-y^3\\-x-9=y^3\\\sqrt[3]{-x-9}=y[/tex]
How long does it take for the contestant to go from A to D if 15 feet is a second. I got 13.333 seconds but it says im wrong. Can someone help me out please
========================================================
Explanation:
Since triangle ABD is congruent to triangle CBD, this means the corresponding pieces AB and BC are the same length. Both are 70 feet.
Similarly, AD = DC = 60 ft.
The total length traveled is:
AB+BC+CD = 70+70+60 = 200 ft
We never use BD = 50 at all.
Divide this total distance over the speed of 15 ft per second, and we get 200/15 = 13.333 seconds approximately.
You are correct so far. You just need to round this value to the nearest tenth, as the instructions indicate. So you'll round to one decimal place. The value 13.333 turns into 13.3 which is the final answer.
i need help with this pls
Answer:
8x + 12 + 2x + 28 = 180
x = 14
Step-by-step explanation:
8x + 12 + 2x + 28 = 180
8x + 2x + 12 + 28 = 180
10x + 40 = 180
-40 -40
10x = 140
10 10
x = 14
any more help just ask :)
PLEASE HELP!!! TIMED TEST!
Which pair of angles must be supplementary?
1 and 6
2 and 5
5 and 4
6 and 2
Answer:
ok supplementary angles are two angles when they add up upto 180 degree so angle 2 and 5 make 180 degree .
What is a fraction equivalent to 4/4? Explain how you know.
Answer: Any number over itself is equivlent to 4/4.
Examples: 3/3, 18/18, 5/5, 90/90
Step-by-step explanation:
Because 4/4 is equivalent to 1 whole.
A fraction that is equivalent to 4/4 would be, 5/5 as, After simplifying the fraction 5/5 is equal to 1.
A fraction is a part of the whole number and a way to split up a number into equal parts. Or, A number which is expressed as a quotient is called a fraction.
Given that,
The fraction is,
⇒ 4/4
Now, after simplifying the fraction we get;
⇒ 4/4
⇒ 1
So, Let a fraction that is equivalent to 4/4 would be;
⇒ 5/5
After simplifying we get;
⇒ 5/5 = 1
Therefore, A fraction that is equivalent to 4/4 would be, 5/5
To learn more about the fraction visit:
https://brainly.com/question/5454147
#SPJ6
Let see if this work
Answer:
i really dont know what you are saying, but thanks for the points and have a nice day! always smile peeps!
What is the most profound problem in maths?
No answer needed, just take the points.
Answer:
SWEEEET!!
Step-by-step explanation:
:D
Answer:thx so much I needed them
Step-by-step explanation:
solve the simultaneous equations
5x + 6y = 3
2x - 3y = 12
Answer: x =3; y = -2
[tex]\left \{ {{5x+6y=3} \atop {2x-3y=12}} \right.\\\\<=>\left \{ {{x=\frac{3-6y}{5} } \atop {2x-3y=12}} \right.\\\\<=>\left \{ {{x=\frac{3-6y}{5} } \atop {2.\frac{3-6y}{5}-3y =12}} \right.\\\\<=>\left \{ {{x=\frac{3-6y}{5} } \atop {6-12y-15y=12.5}} \right.\\\\<=>\left \{ {{x=\frac{3-6y}{5} } \atop {17y=6-60=-54}} \right.\\\\<=>\left \{ {{x=\frac{3-6y}{5} } \atop {y=-54/27}} \right.\\\\\\ <=>\left \{ {{x=\frac{3-6y}{5} } \atop {y=-2}} \right.\\\\<=>\left \{ {{x=3} \atop {y=-2}} \right.[/tex]
Step-by-step explanation:
Answer:
x = 3, y = -2.
Step-by-step explanation:
5x + 6y = 3
2x - 3y = 12 Multiply this by 2:
4x - 6y = 24 Now add this to the first equation:
9x = 27
x = 3.
Substitute x = 3 in the second equation:
2(3) - 3y = 12
-3y = 12 - 6 = 6
y = 6 / -3
y = -2.
A bakery offers a sale price of $2.85 for 6 muffins. What is the price per dozen?
Answer:
2.85 x 2 is equal to 5.7 so that should be the answer
Step-by-step explanation:
Did it on calculator sorry if wrong lol
Answer:
$5.70
Step-by-step explanation:
6 muffins is half a dozen, so double $2.85 and you get $5.70.
Can you help me with this please. I will mark brainlist
Answer:
E is [tex]\frac{1}{2\\}[/tex] F is 6[tex]\frac{1}{4}[/tex] and G is [tex]1\frac{1}{2}[/tex]
Step-by-step explanation:
I need help, please
it is do tomorrow
Answer:
21 millimeters
Step-by-step explanation:
ummmm yes
Factor 16x – 12 by the GCF.
Answer:
148 i thk i did 16x-12
Step-by-step explanation:
Coach McGee uses the table to show her team’s current basketball shot average compared to previous years.
2008
2009
2010
–5.8
4.4
StartFraction 37 Over 10 EndFraction
2011
2012
2013
3.6
4 and one-third
Negative 5 and three-fourths
Which comparison is true? Use the number line to help you.
A number line going from negative 6 to positive 6 in increments of 1.
Negative 5.8 > Negative 5 and three-fourths
3.6 4.4
Answer: The answer is B, 3.6 < 37/10
Answer: I believe that your answer is B.
37/10 is greater than 3.6.
I hope I helped you!
Car dealership pays a wholesale price of $10,000 to purchase a vehicle if they mark up the price 20% what is the retail price of the car
Answer:
8000
Step-by-step explanation:
10000 x 20% = 2000
10000-2000= 8000
The weight of one ticket is approximately 1.67 × 10-4 g. Write the numerical value without scientific notation.
Answer:
0.000167 g
Step-by-step explanation:
[tex]1.67 \times {10}^{ - 4} \: g\\ \\ = 0.000167 \: g[/tex]
Chris is trimming trees. He can trim 2/3 of a tree in 1/2 of an hour. At what rate can Chris trim trees
Answer:
1 tree every 45 mins
Step-by-step explanation:
Answer:
he trims i 1 and 1/3 trees an hour
it would take him 45 minutes to trim 1 tree
Step-by-step explanation:
The data represent the results for a test for a certain disease. Assume one individual from the group is randomly selected. Find the probability of getting someone who tests ​negative, given that he or she has the disease.
Answer:
[tex]Probability = 0.0470[/tex]
Step-by-step explanation:
This question has missing detail. (See attachment for the data)
Required
Determine the probability that a selected individual who has the disease test negative.
This type of probability is referred to as conditional probability.
First, we need to get the number of individuals who have the disease.
[tex]Disease =142 + 7[/tex]
[tex]Disease =149[/tex]
Next, we list out the number of individual who have the disease but is negative.
[tex]Negative = 7[/tex]
The probability is then calculated as:
[tex]Probability = \frac{Negative}{Disease}[/tex]
[tex]Probability = \frac{7}{149}[/tex]
[tex]Probability = 0.04697986577[/tex]
[tex]Probability = 0.0470[/tex] (approximated)
Six packs of cola are on sale for 1.50. If a customer buys a 24 pack what is the total charge including8%
Answer:
The total would be $38.88
Step-by-step explanation:
First I did 1.50 • 24 = 36
Then I did 36 + 8% = 38.88
Hope this helps
Also can I get brainliest :)
What are the solutions to the equations?
Answer:
x^2=399+1
x^2=400
x=√400
x=+/-20
A. x=20 and x=-20
Answer:
x = 20 and x = -20
Step-by-step explanation:
I am a math expert. 20^2 and -20^2 are both 400 - 1 = 399.
Everything else is 397 or a wayyy higher number
Trust me the answer is x = 20 and x = -20
If im right, give me brainliest
A bowl holds 4 cups of rice if I use a measuring cup that holds 1/8 of a cup how many times will I need to fill the measuring cup in order to fill the entire bowl
Answer:
32 times
Step-by-step explanation:
It's SUPER easy, all you have to do is take that 1/8 and make it into a regular 8. Now all you do is multiply 4 by 8.
I know there's probably some way the teachers taught that's so much harder then it already is, but if you try to look at it from an easier perspective, you'll be a pro!
Try some more so you'll slowly start getting better at them! Anyway I hope this helped!!
A lion can run 18 mph faster than a giraffe. If a lion can run 50 mph how fast can the giraffe run?
Answer:
32
Step-by-step explanation:
its just 50 minus 18 and dont forget to borrow
Answer:
32mph
Step-by-step explanation:
So I think all you have to do is subtract 18 from 50 so 50 - 18 = 32mph
So in conclusion the giraffe can run 32mph if a lion is running at 50mph
Solve for A if ñ=3.14 and r=3.
Answer:
28.26
Step-by-step explanation:
The question gives the first three digits of π, which is 3.14, and it gives us the radius, which is 3. So, just substitute them into the formula and you’ll get 3.14(3^2). Solve it and the final answer is 28.26.
Hope this helps! :)