Answer:
The best way to solve these by graphing instead of substitution or elimination, is to use a free website called Desmos. Input the 2 equations and find the intersection.
Answer:
a) 2 lines intersecting at (4,2)
Step-by-step explanation:
When u graph y=2x, you start at (0,0) and go up two and over one to the right
When you graph y= - 1/2 + 5 you start at 5 and go down one and over two to the right
You can see the intersect
3x+7=19 what is the value of x
Answer:
4
Step-by-step explanation:
because subtract 4+7 which is 11 from 19 which is 7 and 4x3 equals 9 so X is 3
3 8/9 converted into an improper fraction
[tex]3\frac{8}{9}=\frac{35}{9}[/tex]
35/9
(I hope this helps)
which description best compares the graphs of the two functions below?
The y-intercept of Function B is higher on the
y-axis.
Function A
The line for Function B is steeper.
The line for Function A is steeper.
The y-intercept of Function A is higher on the
Function B
y-axis.
Answer:
function A is have the best compares of the graphs
a number divided by 3 minus 5 is less than 10
Answer:
x < 45
Step-by-step explanation:
Let's call that number x. x/3 - 5 < 10, and we can add by five on both sides then multiply by 3 on both sides to get that x < 45.
graphing radical functions
Answer:
D) [tex]y=4\sqrt{x+4}+3[/tex], because the graph is translated 4 left and 3 up.
Step-by-step explanation:
First, simplify the radical, do this by taking out [tex]\sqrt{16}[/tex]. So the equation turns into [tex]\sqrt{16} * \sqrt{x+4}[/tex], which can be simplified to [tex]4\sqrt{x+4}[/tex].
Then figure out the translations, to do this remember the form is [tex]y=a\sqrt{x-h}+k[/tex], where h is the x-value and k is the y-value. So, in this case, the x translation is -4 and the y is 3. It might seem like the x is positive, but remember since h is being subtracted you need to flip to sign to find the x translation. A negative x translation moves the graph left and a positive y value moves the graph up. Therefore, the answer is D.
wat is the exponent in the expression 4*?
Answer:
5
Step-by-step explanation:
The exponent (the number above 4) shown is 5
Factor each Polynomial
j^2 - 9jk - 10k^2
Answer:
There are no like terms.
Step-by-step explanation:
can someone please help me with number 8?!
Answer:
2
Step-by-step explanation:
Answer:
B= 1.5
Step-by-step explanation:
I WILL GIVE BRAINILEST IF CORRECT
Bill and Lisa are surveying their classmates about their summer reading. Their questions are given below:
Bill: How many books were recommended by the book reading club for summer?
Lisa: Which was your favorite book from the book reading club's recommendation?
Who wrote a statistical question and why?
Bill, because there will be variability in the responses collected
Lisa, because there can be only one answer to the question
Bill, because every student will give the same answer
Lisa, because there can be many answers to the question
Lisa ( the last one)
lol
jdjsjakaklaoaoa
which ordered pair represents a point on the line y = 2x + 1
Answer:
(1, 3 )
Step-by-step explanation:
Choose any value of x, substitute into the equation for y
Choose x = 1 , then
y = 2(1) + 1 = 2 + 1 = 3
Then (1, 3 ) is an ordered pair on the line
Suppose that you throw a rock into the air from the top of a cliff. The initial
upward velocity is 15 m/sec.
a. How high will the rock be above the cliff after two seconds?
b. Where will it be after four seconds ?
c. When will it again be at the same level you threw it?
d. When will it hit the water, 50 meters below the cliff?
Answer:
a. 10.4m above the cliff
b. 18.4m below the cliff
c. Os or 3.1s
d. 5.1s
a) The rock be 10 m above the cliff after two seconds.
b) The rock be 20 m below the cliff after 4 seconds.
c) After 3 second it again be at the same level you threw it.
d) After 5 second it hit the water, 50 m below the cliff.
What is Multiplication?
To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
Since, The formula for the distance,
s = ut - 1/2 gt²
Where, s is distance of an object.
u is initial velocity.
t is time taken by object.
Now,
a) Given that;
t = 2 seconds , u = 15 m/sec , g = 10 m/s
Since, s = ut - 1/2 gt²
Substitute all values we get;
s = 15 × 2 - 1/2 × 10 × 2²
s = 30 - 20
s = 10 m
Thus, The rock be 10 m above the cliff after two seconds.
b) Given that;
t = 4 second,
Then, s = ut - 1/2 gt²
s = 15 × 4 - 1/2 × 10 × 4²
s = 60 - 80
s = - 20
Hence, The rock be 20 m below the cliff after 4 seconds.
c) Given that;
s = 0 meter
Then, s = ut - 1/2 gt²
Substitute all the values,
0 = 15t - 1/2 × 10 × t²
15t - 5t² = 0
5t² - 15t = 0
5t ( t - 3) = 0
Gives, t = 0 second and t = 3second
So, After 3 second it again be at the same level you threw it.
d) Given that;
s = -50 m
Since, s = ut - 1/2 gt²
Thus, Substitute all the values we get,
- 50 = 15t - 1/2 × 10 × t²
15t - 5t² = -50
5t² - 15t - 50 = 0
5 (t² - 3t - 10) = 0
t² - 3t - 10 = 0
By using quadratic formula;
t = -(-3) ± √(-3)² - 4 × 1 × -10 / 2 × 1
t = 3 ± √9 + 40 / 2
t = 3 ± √49 / 2
t = 3 ± 7 / 2
Gives t = 3 + 7 / 2 = 5 second
and , t = 3 - 7/ 2 = -4/2 = -2 second
Thus, After 5 second it hit the water, 50 m below the cliff.
So,
a) The rock be 10 m above the cliff after two seconds.
b) The rock be 20 m below the cliff after 4 seconds.
c) After 3 second it again be at the same level you threw it.
d) After 5 second it hit the water, 50 m below the cliff.
Learn more about the velocity visit:
https://brainly.com/question/3522016
#SPJ5
A player at a basketball camp set a goal to make 55% if his shots. If he has 120 attempts, how many shots would he need to make in order to reach his goal?
Answer: 66
Step-by-step explanation:
From the question, we are informed that a player at a basketball camp set a goal to make 55% if his shots and that he has 120 attempts.
The number of shots that he would he need to make in order to reach his goal will be 55% of 120. This will be:
= 55% × 120
= 55/100 × 120
= 0.55 × 120
= 66
He would need to make 66 shots
Work out
Root 6 x root 6 x root 6
The value of the expression √6 × √6 × √6 will be 6√6.
What is the value of the expression?When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
The expression is given below.
⇒ √6 × √6 × √6
Simplify the equation, then the value of the expression will be
⇒ √6 × √6 × √6
⇒ (√6)³
⇒ 6√6
The value of the expression √6 × √6 × √6 will be 6√6.
More about the value of expression link is given below.
https://brainly.com/question/23671908
#SPJ2
Which linear inequality is represented by the graph?
Step-by-step explanation:
the linear inequality is how to measure value of a line through quality and quantity.
I Need help on Understand Addition and Subtraction of Fractions Unit Test 4th Grade! Can yall give me the answers it has 10 Questions!
Answer:
Where is the test?
Step-by-step explanation:
_____ > -2°C select one -3,0,-2.5,-5
Zero is greater than 2, so second one from the left.
When you flip a biased coin the probability of getting a tail is 0.4. How many times would you expect to get tails if you flip the coin 160 times?
Answer:
50 im not 100% sure tho
Step-by-step explanation:
8.
The equation a = 640s gives the relationship between s square miles and a acres. Kevin owns 8.5 square miles of farmland. How many acres does he own?
13.28 acres
1.33 acres
5,440 acres
544 acres
Answer:
5440 acres
Step-by-step explanation:
Given: The equation a = 640s gives the relationship between s square miles and a acres. Kevin owns 8.5 square miles of farmland.
To Find: How many acres does he own.
Solution:
Area of farmland owned by kevin
The given equation is
here is area in acres, and is area in square miles.
putting values in equation
Hence kevin owns of farmland
PLEASE HELP ME WITH THIS FOR BRAINLIEST
Answer:
I'm pretty sure its w=128
Step-by-step explanation:
so what i did was the inverse operation which the opposite of ÷4 is ×4 so 4 is already canceled out so then all you have left is 32×4 which is 128. Hope this helps
yardım edin boş cevapları spamlycam teşekkür ederim şimdiden
Answer:
8a^3
Step-by-step explanation:
Given that;
2^x = a, we want an expression for 8^(x + 1)
we have this as;
8^(x + 1) = 8^x * 8^1
8^x = (2^x)(3)
8^x is thus same as 2^3x
So replace 2^x by a
Thus, we have a^3
Multiply this by the 8 we had initially; that will give;
8 * a^3 = 8a^3
Answer:
cevap C olabilir ama emin değilim
(k + 2)x² -(k+ 2)x - 1 = 0
+
Devide. Reduce to lowest terms 3/8 1/7
How do you know when a number is divisible by 6?
A. when the number in one's digit is even
B. when the number is divisible by 4
C. when the last three digits are divisible by 8
D. when the number is even AND is divisible by 3.
Answer:
the answer is D
Step-by-step explanation:
makes sense...
Devon bought a new suit that was discounted 40% off the original price. If the original price of the suit was $280, what was the discounted price?
a) $140
b) $392
c) $112
d) $168
Answer:
c
Step-by-step explanation:
Instructions for a craft project say that the length of a piece of red ribbon should be 7 inches less than the length of a piece of blue ribbon how long is the red ribbon if the length of the blue ribbon is 27 inches
Answer: 20 inches
Step-by-step explanation:
MATH HELP!!!! ASAP!!! PLSSSSS
Last year, the average monthly revenue at stamford times newspaper was 35,700. So far this year, the average has been 29% more than last year. What is the average revenue.
Answer:
$46,053
Step-by-step explanation:
Convert 29% into a decimal, which is 0.29.Multiply $35,700 by 29% as a decimal (0.29), which is 10,353.Since the keyword is more, we want to add $35,700 and 10,353 (29% of $35,700). The answer will be $46,053.Kylie and her family need to buy a new refrigerator. The space available for the refrigerator measures 37 in. wide, 72 in. high, and 24 in. deep. Which size refrigerator would be the BEST fit for the available space?
Answer: Answer D, 42,000 in
Step-by-step explanation:
ok no one cares lol lolololol
2. What is the slope of a line that contains the points (4, 2) and (5,9)
Answer:
m=7
__________________
Kyle recycled the following items.
Recycling
Item Count
Boxes 2
Cans 25
Plastic 15
Magazines and Newspapers 8
TOTAL 50
What percent of the recycled items were cans?
Answer: oh wow that sucks
Step-by-step explanation:
Answer:
i donk really know :(
Step-by-step explanation:
sorry
:)