Answer:
The discriminant is 37
3 < y ⩽ 7 where y is an integer Write down all the possible values of y
add 4 i guess. i dont really know
Answer: 4, 5, 6, 7
Step-by-step explanation:
Let’s break this apart into 3 < y and y <= 7.
We can rewrite 3 < y as y > 3, and we also have that y <= 7.
This is equivalent to the verbal expression y is greater than 3 and less than or equal to 7.
We can then conclude that y must be between 4 (since that is the first number greater than 3) and 7 (since y includes 7).
Therefore, y can be 4, 5, 6, or 7!
Hope this helps! :)
Kevin ate 3 apples. This represents 20% of the bag of apples. How many apples were originally in the bag?
Solve the system of equations by substitution.
x + y = 40
y = 9x
The solution of the system is?
In the parallelogram below, z = ?°
Answer:
z is 111 degrees
Step-by-step explanation:
69 ° and z is a linear pair, therefore:
69 + z = 180
z = 180 - 69
z= 111
Solve this problem on paper using all four steps. Enter each answer separated by a comma, in numerical order.
Find four consecutive integers whose sum is 114.
The integers are ______
Answer:
27, 28, 29 and 30Step-by-step explanation:
Let the integers be:
n, n + 1, n + 2 and n + 3Their sum is 114:
n + n + 1 + n + 2 + n + 3 = 114Solving for n:
4n + 6 = 1144n = 108n = 108/4n = 27The numbers are: 27, 28, 29 and 30
A pre-image arrow pointing east is rotated 135° clockwise. In which direction is the image arrow pointing?
Answer:
Southwest.
Step-by-step explanation:
East clockwise 90 degrees is South
South clockwise 45 degrees is Southwest
PLS GIVE BRAINLIEST
Think about it.
Starting on the x-axis at 0° we move in a CLOCKWISE direction and stop in quadrant 3 at 135°.
We travel in the SOUTHWESTERN direction.
Original price: $72.00
Markdown: 33% please i rlly need help thanks mate
Answer:
$48.24
Step-by-step explanation:
33% of 72 = 23.76
72 - 23.76 = 48.24
An astronaut on the moon throws a baseball upward. The astronaut is 6 ft 6 in tall, and the initial velocity of the ball is 40 ft per sec. The heights of the ball in feet is given by the equation
S = -2.7t^2+40t+6.5, where t is the number of seconds after the ball was thrown.
After how many seconds is the ball 18 ft above the moon's surface?
Answer:
t = 0.293 s and 14.52 s
Step-by-step explanation:
The heights of the ball in feet is given by the equation as follows :
[tex]S = -2.7t^2+40t+6.5[/tex]
Where t is the number of seconds after the ball was thrown.
We need to find is the ball 18 ft above the moon's surface.
Put S = 18 ft
[tex]-2.7t^2+40t+6.5=18\\\\-2.7t^2+40t=18-6.5\\\\-2.7t^2+40t-11.5=0[/tex]
It is a quadratic equation. Its solution is given by :
[tex]t=\dfrac{-40+\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)},\dfrac{-40-\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)}\\\\t=0.293\ s,14.52\ s[/tex]
So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.
For Jayden's lemonade recipe, 3 lemons are required to make 12 cups of lemonade. At what rate are lemons being used in lemons per cup of lemonade?
Answer:
0.4 of lemon is being used for one cup
Step-by-step explanation:
12 divided by 3 is 4 which is more than 3 meaning we need to try and make it smaller which is why the 4 was carried down by one row making 0.4
A family has two cats named Gordo and Flaco. Gordo weighs 15 pounds and Flaco weighs 8 pounds. A cat’s weight is classified as unhealthy if the weight is located in the top 5% or bottom 5% of all cat weights. The distribution of cat weights is approximately normal with mean 9.5 pounds and standard deviation 1.5 pounds. Which of the following is the best description of Gordo’s and Flaco’s weights?
Answer:
Gordo's weight = 15 pounds
It is outside the healthy weight range and is in the top 5% of weights of cats.
Gordo's weight makes Gordo unhealthy.
Step-by-step explanation:
μ = mean weight = 9.5 pounds
σ = standard deviation = 1.5 pounds
This is a normal distribution problem
We first calculate the limit of the bottom 5% of weights
Let the z-score for this limit be z'
P(z < z') = 0.05
From the normal distribution table,
z' = -1.645
And the limit for the top 5% which is z" = 1.645.
The weight that corresponds to these scores are then calculated.
Standardized scores are given as
z = (x - μ)/σ
So,
z' = (limit for the bottom 5% - μ)/σ
-1.645 = (limit for the bottom 5% - 9.5)/1.5
limit of the bottom 5% = (-1.645)(1.5) + 9.5 = 7.033 pounds
z" = ( (limit for the top 5% - μ)/σ
1.645 = (limit for the top 5% - 9.5)/1.5
limit of the bottom 5% = (1.645)(1.5) + 9.5 = 11.968 pounds
Therefore the healthy weight range for cats is (7.033 < x < 9.968)
Gordo's weight = 15 pounds
It is outside the healthy weight range and is in the top 5% of weights of cats.
Gordo's weight makes the cat unhealthy.
Flaco's weight = 8 pounds
Flaco's weight lies in the healthy weight range for cats. Hence, Flaco is a healthy cat.
Help meee pleaseee :(
Hi there!
[tex]\large\boxed{tan\text{ } (\frac{-\pi }{6})}[/tex]
**Recall that tangent is Opposite / Adjacent**
tan (5π / 6) according to the unit circle equals -1 / √3. We can go through each choice and eliminate:
tan (-5π / 6) is in the third quadrant which would mean that the value would be positive 1 / √3. This choice is incorrect. tan (7π / 6) is the same as tan (-5π / 6), which is positive 1 / √3. This choice is incorrect.cot (5π / 6) is the reciprocal of tan 5π / 6, which is incorrect.tan (-π / 6) is equal to -1 / √3. This choice is correct.Therefore, the correct choice is tan (-π / 6).
If 14-2x1 = 20, x could equal which of the following?
Answer:
x=-3
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
What is the volume of a triangular pyramid that has a base area of 8.2 square centimeters and a height of 4
centimeters? Label the answer correctly and round to the nearest tenth of a cubic centimeter
Answer:
[tex]\boxed {\boxed {\sf V \approx 10.9 \ cm^3}}[/tex]
Step-by-step explanation:
The volume of a triangular pyramid can be found using the following formula:
[tex]V=\frac{1}{3} A_b\times h[/tex]
Basically, we have to multiply 1/3, the height, and the base area.
We know that the base area is 8.2 square centimeters and the height is 4 centimeters.
[tex]A_b=8.2 \ cm^2 \\h= 4 \ cm[/tex]
Substitute the values into the formula.
[tex]V=\frac{1}{3} (8.2 \ cm^2)\times (4 \ cm)[/tex]
Multiply 8.2 square centimeters and 4 centimeters.
8.2 cm² * 4 cm= 32.8 cm³[tex]V=\frac{1}{3} (32.8 \ cm^3)[/tex]
Multiply 1/3 and 32.8 cubic centimeters.
[tex]V= 10.9333333 \ cm^3[/tex]
Round to the nearest tenth.
The 3 in the hundredth place tells us to leave the 9 in the tenth place.
[tex]V \approx 10.9 \ cm^3[/tex]
The volume of the triangle pyramid is about 10.9 cubic centimeters.
i need help please help
Answer:
The answer is 46 degrees.
Step-by-step explanation:
To find angle RPQ, subtract 108 from 180 because a straight line equals 180 degrees.
108 - 180 = 72
A triangles angles add up to 180. We have two of them. To find the third angle, subtract the two angles from 180.
180 - 72 - 62 = 46.
I hope this was helpful to you! If it was, please consider rating, pressing thanks, and giving my answer Brainliest. Have a great day!
someone help plz. quick. :/
Answer:
y = 2x - 22
Step-by-step explanation:
y = 2x - 8
it is the form of y = mx + c
to be parallel the m should be the same ..
so the equation m = 2
znd it is given that it is passing (11,0) so that the equation should satisfy the point ( 11,0)
y = mx + c
y = 0 , m = 2 , x = 11
0 = 2 ( 11 ) + c
c = -22
so the required equation for the parallel line is
y = 2x - 22
Cost of admission to a town fair was $8 for adults and $5 for children. If 206 people
attended the fair, and ticket sales totaled $1408, how many adult tickets were sold?
adult tickets
Help plz due by tm at 8 am
(Urgent please help!!!) Maria earned $5,250; $4,800; $3,990 and $5,120 from her home business during the last four months. What was her average monthly income during this period?
If a 30-year-old male exercises 2 hours per week, what would you
expect his resting heart rate to be?
Answer:
(71) I believe
Step-by-step explanation:
hope this helps :3
if it did pls mark brainliest
sorry if im wrong
Answer:
Approximately 72 bpm.
Step-by-step explanation:
In order to find the expected heart rate you need to look at the x-axis on the graph. Since the male exercises 2 hours a week, use that value for x and find where x = 2 lies on the line. In this graph, the line goes through x = 2 at the same time it goes through y = 72. Since the y-axis represents the resting heart rate, we now know that if a 30 year-old male exercises for 2 hours a week, his resting heart rate will be around 72 bpm(beats per minute).
I hope this helps :)
Question 26
y = 1/8x
What is y when x is 37?
ROUND YOUR ANSWER TO THE NEAREST HUNDRETH.
Answer:
y ≈ 4.63
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASStep-by-step explanation:
Step 1: Define
y = 1/8x
x = 37
Step 2: Evaluate
Substitute: y = 1/8(37)Multiply: y = 37/8Divide: y = 4.625Round: y ≈ 4.63And we have our final answer!
How many solutions does this equation half? x=x+9
Answer:
I think it is 0 solutions
Step-by-step explanation:
it should be 0 because no matter what number you substitie x for, the right side will always be 9 higher than it, so x never equals x
May I have brainliest please? :)
A large male giraffe needs to eat at least 75 pounds of food each day. At each feeding, the giraffe is fed 3 pounds of food. The giraffe has already consumed 24 pounds of food. How many more times x does the giraffe need to be fed? Write your answer as an inequality.
Answer:
0, hes getting too fat.
Step-by-step explanation: Dam-n fat bast-ard.
Answer:
x greater than or equal to 17
Step-by-step explanation:
75 - 24 = 51 pounds needed
3 × 17 =51
What is the value of x that makes the statement true?
7x + 9 = 5x + 39
x =
Answer:
15
Step-by-step explanation:
7x+9=5x+39
7x-5x=39-9
2x=30
30/2=x
x=15
[tex]p(m) = 2m+8[/tex]
The function p above models the total price p( m ), in dollars, of streaming m movies per month from an online movie subscription service. The subscription service charges an $8 monthly fee plus an additional fee per movie streamed. Which of the following is the best interpretation of p( 10) in this context?
A) The total price for streaming 1 movie in a month is $10.
B) The total price for streaming 2 movies in a month is $10.
C) When 10 movies are streamed in a month, the total price that month is $18.
D) When 10 movies are streamed in a month; the total price that month is $28.
9514 1404 393
Answer:
D) When 10 movies are streamed in a month; the total price that month is $28.
Step-by-step explanation:
Using the function definition, put 10 where you find m, then evaluate:
p(10) = 2(10) +8 = 20 +8
p(10) = 28
The function definition tells you this (28) is the price of streaming 10 movies in a month.
What is the slope of the line?
Find the absolute value of the complex number. i-5
Answer:
0
Step-by-step explanation:
What is a tick question to ask my math teacher
Answer:
Derive the formula for the depressed cubic x3+3px=2q
Step-by-step explanation:
It's hard, so good luck to your math teacher
reflect triangle a in the line y=1?
where will it be which square?
Multiple Choice An equation of the line
whose slope is – 6 and whose y-intercept is 9
is ? ?
A y = -9x – 6 ( B y = 9x – 6
c) y = -6x - 9 D y = 6x - 9
E y = -6x + 9
Answer: answer is E
Step-by-step explanation: because it slope is -6(x) and intercept is (+)9
The Articles of Confederation created a weak central government. The Confederation Congress had the power to manage wars and deal with foreign countries, but it could not collect taxes or control the states. Check Your Understanding- Question 2 of 2 Attempt 1 of 2 How did states vote in the Confederation Congress? O A. Each state sent several representatives to the Congress but had only one vote. B. States were given votes in the Congress based on the size of their population. C. Each state sent two representatives to the Congress, and both representatives could vote.
the answer is get a life
ANSWER NEEDED ASAP!
Find the value of x. (Hint: The sum of the angles in
a triangle is 180 degrees.)
The value of x is degrees.
Answer:
look below
Step-by-step explanation:
Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X.