Answer:
13
Step-by-step explanation:
Please mark brainliest
How do I find the vertex and the standard form? Plz explain
Answer:
Vertex form
y = -4(x + 3)^2 + 10
Standard form;
y = -4x^2-24x - 26
Step-by-step explanation:
Mathematically, we have the vertex form as
y = a(x-h)^2 + k
(h,k) represents the vertex
We have h as -3 and k as 10
y = a(x+3)^2 + 10
To get a, we substitute any of the points
Let us use (-1,-6)
-6 = a(-1+3)^2 + 10
-6-10 = 4a
4a = -16
a = -16/4
a = -4
So we have the equation as;
y = -4(x+3)^2 + 10
For the standard form;
We expand the vertex form;
y = -4(x + 3)(x + 3) + 10
y = -4(x^2 + 6x + 9) + 10
y = -4x^2 - 24x -36 + 10
y = -4x^2 -24x -26
How many solutions does the linear system below have? -8x+2y=6 and -4x+y=3
Answer:
Step-by-step explanation:
Try dividing the first equation by 3. The result will be identical to the second equation. Thus, we have two lines that coincide, and therefore there are an infinite number of solutions.
The diameter, D, of a sphere is 18.8m. Calculate the sphere volume, V. Use the value 3.14 for pi
Answer:
3.14159369398579323..... and so on
Pls help me..if u can
Answer:
19958
Step-by-step explanation:
20237-(-279)
20237+279
ASAP NEED HELP ON MY MATH RETAKE I NEED HELP PLZZZ IM BEGGING YALL
Answer:
Answer A.
Since the graph show a straight horizontal line towards the x axis .. Theres no change or increase in the Y axis.
Therefore... Time increases... But there's no Change in the percentage raise in Pay(It remains constant).
Option A
Answer:
A. As time with the company increases, the percentage raise in pay remains constant.
Step-by-step explanation:
PLease help its urgent
Tan(angle) = opposite leg/ adjacent leg
Tan(75) = 15/x
X = 15/tan(75)
X = 4.0 feet
Answer:
Solution given;. we have
Tan75=perpendicular /base
base=15/tan75=4.01=4 feet is your answer
Find the slope of the graph below
Answer: 3/2
Step-by-step explanation:
Find two numbers that meet the requirements of the situation in each question. Put the smaller of the two numbers in the first blank and the larger of the two numbers in the second blank. One answer is positive and the other is negative. Give the negative answer first.
Multiply to give you -64 and add to give you 0.
Answer:
-8, 8 are the numbers
Step-by-step explanation:
8x-8 = -64
8+ -8 =0
How many lines of symmetry does this triangle have
Answer:
Option A:1 line of symmetry
Someone help me please
Answer:
its D
Step-by-step explanation:
Need answers before 8:00
If (-10,8) is a point on the terminal side f a angle 0 in standard position what is the value of tan0?
Answer:
The value of the tangent is [tex]-\frac{4}{5}[/tex].
Step-by-step explanation:
Let be [tex]A(x,y) = (-10, 8)[/tex] on the terminal side of an angle in standard position and let be [tex]O(x,y)[/tex] the origin of the angle and the origin of the Cartesian plane. By definition of tangent, we make use of the following expression:
[tex]\tan \theta = \frac{y_{A}-y_{O}}{x_{A}-x_{O}}[/tex] (1)
Where:
[tex]x_{A}, x_{O}[/tex] - x-Coordinates of point A and point O.
[tex]y_{A}, y_{O}[/tex] - y-Coordinates of point A and point O.
If we know that [tex]x_{A} = -10, x_{O} = 0[/tex], [tex]y_{A} = 8[/tex] and [tex]y_{O} = 0[/tex], then the value of the tangent is:
[tex]\tan \theta = \frac{y_{A}-y_{O}}{x_{A}-x_{O}}[/tex]
[tex]\tan \theta = \frac{8-0}{-10-0}[/tex]
[tex]\tan \theta = -\frac{4}{5}[/tex]
You flip a fair coin 24 times. About how many times would you expect heads to appear? If a fair coin is flipped 24 times then heads should appear about times.
Answer:
12 50/50 chance
Step-by-step explanation:
What is the equation for this trig function?
(Open ended question)
Which trig function is the best representation for this graph?
A. sin (x)
B. - sin (x)
C. - cos (x)
D. cos (x)
Assuming that the scale for the y-axis is one box represents it be unit what could be the amplitude of this function?
A. 1
B. -1
C. 3
D. -3
Answer:
A. y = cos x
Step-by-step explanation:
The function that we see graphed has the point (0,1), this means whichever trig function f(x) it represents f(0) = 1.
Now, only the cosine function has the property that cos(0) = 1, thus choice A is the correct answer.
Step-by-step explanation:
19. A ladder leans against the wall and reaches a point
24 feet up the wall. The base of the ladder is 6 feet
from the wall. To the nearest degree, what angle
does the ladder make with the wall?
D
24
E 6 F
Answer: 14
Step-by-step explanation:
If a right triangle has side lengths of 3 cm and 7 cm, what is the length of the hypotenuse? brainliets will repport if nswwer is not right
Answer: 7
Step-by-step explanation:
i think it right could be wrong tho
Answer:
Solution given:
length[a]=3cm
base(b)=7cm
hypotenuse [c]=?
we have
by using Pythagoras law
a²+b²=c²
3²+7²=c²
c=√58=7.61m
the length of the hypotenuse is 7.61m.
Austin thinks that the inequality 6x - 4y is greater than or equal to 10 should be shaded above the boundary
line because it uses the greater than or equal to inequality
symbol. Is he correct? Explain.
Answer:
no, you shade below the line. you'd have to turn the inequality into slop intercept form, meaning y[tex]\leq[/tex]3/2x-5/2.
What would this be? Please help.
Answer:
-176
Step-by-step explanation:
Let x = -8
f(-8) = 11 (-8-24) / 2
Simplify the parentheses
f(-8) = 11 ( -32)/2
= 11 (-16)
= 176
solve for v.
v/6=19.2
Answer:
115.2
Step-by-step explanation:
I used Photo math and searched it hope this helps
What is the volume of a box with a base of 672 square inches and a height of 25 inches? A. 1,680 in33
Answer:
16,800 in^3
Step-by-step explanation:
Volume of a box = length x width x height
or base area x height
672 x 25 = 16,800 in^3
Jessica is selling books during the summer to earn money for college. She
earns a commission on each sale but has to pay for her own expenses.
After a month of driving from neighborhood to neighborhood and walking
door-to-door, she figures out that her weekly earnings are approximately a
linear function of the number of doors she knocks on.
She writes the equation of the function like this: E(x) = 10x - 30, where x is the
number of doors she knocks on during the week and E(x) is her earnings for
the week in dollars.
Which of the following are reasonable interpretations of the y-intercept of
Jessica's function?
Check all that apply.
A. She can earn $10 per week even if she does not knock on any
doors
B. Her expenses are $30 per week.
c. If she does not knock on any doors at all during the week, she will
lose $30
D. She will lose $10 per week if she does not knock on any doors.
Answer:
C. if 10x is the door she have to knock so the -30 is how much she will earn during the week and if she doesn't knock any then she will lose the whole $30 dollars . sorry i can't explain myself good but i think it is so
Answer: B and C (took the test)
Step-by-step explanation:
B. Her expenses are $30 per week
C. If she does not knock on any doors at all during the week, she will lose $30.
what percent of 144 is 36
no links
Answer:
25
Step-by-step explanation:
We already have our first value 36 and the second value 144. Let's assume the unknown value is Y which answer we will find out.
As we have all the required values we need, Now we can put them in a simple mathematical formula as below:
STEP 1 Y = 36/ 144
By multiplying both numerator and denominator by 100 we will get:
STEP 2 Y = 36/ 144 × 100/ 100 = 25/ 100
STEP 3 Y = 25
Finally, we have found the value of Y which is 25 and that is our answer.
If you want to use a calculator to find 36 is what percent of 144, simply enter 36 ÷ 144 × 100 and you will get your answer which is 25
Which of the following angles has a reference angle of pi/9?
A.) -56pi/9
b.) 16pi/9
c.)29pi/9
d.)-37pi/9
Answer: D. -37pi/9
Step-by-step explanation:
The rest of the answer choices have a reference angle of 2pi/9
The reference angle of π/9 is -37π/9 option (d) -37π/9 is correct.
What is the reference angle?It is defined as the angle formed between the terminal side and x-axis, known as the reference angle.
We have an angle of π/9
The angle -37π/9 is a reference angle of π/9 because:
= (2π+2π)-37π/9 (one complete revolution is 2π)
= (18 + 18-37)π/9
= π/9
Thus, the reference angle of π/9 is -37π/9 option (d) -37π/9 is correct.
Learn more about the reference angle here:
brainly.com/question/16210309
#SPJ2
What is the value of 8 + 2^3 x 5?
Answer:
I think the answer is 48
Step-by-step explanation:
2^3 = 8
8 x 5 = 40
40 + 8 = 48
What is 8 to the power of 4?
Answer:
4096
Step-by-step explanation:
Find the percent of increase from 40 gallons to 89 gallons. Round to the nearest tenth of a percent if necessary.
percent of increase?
Answer:
50
Step-by-step explanation:
because 89-49=49 49 rouded to the nearest ten is 50
The Asian elephant is an endangered species with a current population of 45,000. This species is said to be experinceing a decline of 4.5% per year. After how many years should we expect the Asian elephant poputation ot be approximately 35,746?
Answer:
5 years
Step-by-step explanation:
Given that
The current population is 45,000
The rate of interest in declining would be 4.5% per year
The expected population is 35,746
We need to find out the no of years
Since the rate of interest decrease by 4.5% per year so after decreasing it the percentage would be 0.955
Now
Year 1 = 45,000 × 0.955 = 42,975
Year 2 = 42,975 × 0.955 = 41,041.125
Year 3 = 41,041.125 × 0.955 = 39,194.27
Year 4 = 39,194.27 × 0.955 = 37,430.53
Year 5 = 37,430.53 × 0.955 = 35,746.16
Hence, the no of years would be 5
a line passes through the point (0,-3) and has a slope of -2 what is the equation of the line?
Answer:
y = -2x - 3
Step-by-step explanation:
y = -2x + b
-3 = -2(0) + b
-3 = 0 + b
b = -3
What part is labeled on this normal curve?
A. The mean
B. The variance
C. The standard deviation
D. The area
Answer: Standard Deviation
Step-by-step explanation:
I got it right on Acellus
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
0.65 represent the percent of battery life remaining decreases by 65% each hour. Option D is correct.
What is the equation?A mathematical statement consisting of an equal symbol between two algebraic expressions with the same value is known as an equation.
The fact that the exponential growth function's equation is provided by;
y=a(1+r)ˣ
Given expression;
y = 100(0.65)ˣ
Y represents the percent of battery life
The number of hours x
The battery life percentage declines by 65 percent per hour, or 0.65.
Hence option D is correct.
To learn more, about equations, refer;
https://brainly.com/question/10413253
#SPJ1