Answer:
4x+7 I believe but it could be wrong
1.) Phoebe has a hunch that older students at her high school are more likely to bring
a bag lunch than younger students, because they have grown tired of cafeteria
food. she takes a simple random sample of 80 sophomores and finds that 52 of
them bring a bag lunch. a simple random sample of 104 seniors reveals that 78 of
them bring a bag lunch. Does this data provide convincing evidence to support
Pheobe's hunch at the 5% significant level?
2.)Interpret the P-value in context
Answer:
here use this https:// www.olma.org/ourpages/auto/2017/3/22/51438803/ch%2013%20rev%20answers%20.pd make sure to remove the space pls give me brainly
Step-by-step explanation:
a man bought a phone for ghc2500 after a discount of 25%. find the marked price of the phone
Answer:
........................
Avery threw a football 60 yards,how many meters is that
Answer:
54.9 meters
Step-by-step explanation:
Given: Avery threw football 60 yards
To find: How high it is in meters
Solution: Simply convert 60 yards to meters, by doing that, find out how many meters are in one yard
1 = 0.9144
Multiply the result by 60
60 × 0.9144 = 54.86
Then, round it to the nearest tenths; 54.9
Avery threw the football 54.9 meters high
Write an equation of the line with a slope of 23and y-intercept of −8.
If we have a y intercept of -8, that means that the point falls on the y-axis, therefore x = 0. So, we have a point (0, -8) and we have a slope m = 23.
y = mx + b
y = 23x + b
Now, we can plug in the point values x = 0, y = -8
-8 = 0 + b
b = -8
If we plug b back into our original formula, we get:
y = 23x - 8
Pls help pls really handy helper
Answer:
213
Step-by-step explanation:
35 1/2 times 6
help plz due rnnnnnnnn
Answer:
I would help if I could see the question
Step-by-step explanation:
Hope u figure it out : D
Answer:
No solution
Step-by-step explanation:
The quadratic formula is
[tex]$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$.[/tex]
where a is the coefficient of x squared, b is the coefficient of x, and c is a regular number.
Here, we have
a = 1
b = 7
c = 16
Plugging in values, we have
[tex]\frac{-7 +\sqrt{49 - 4(1)(16)}}{2(1)}[/tex]
and
[tex]\frac{-7 -\sqrt{49 - 4(1)(16)}}{2(1)}[/tex]
The first equation solves to an i term, so there is no way that there is an answer.
The second equation is also an i term, meaning there are no solutions to this equation
help pls! i don't understand
Reasonsssssssss.....
Answer:
In a triangle, sides opposite of congruent angles are congruent
Which of the following is true about a pattern with the rule "Multiply by 2 and then add 1"
and a starting number of 1?
Answer:
b
Step-by-step explanation:
Answer: B
Step-by-step explanation: I think hope this helps
Why is a parallelogram a type of trapezoid?
Answer:
A trapezoid has only one pair of parallel sides, and a parallelogram has two pairs of parallel sides. So a parallelogram is also considered a trapezoid.
(Brainliest please! Btw, I answered first.)
Which number-line model represents the sum of 3/4 + ( - 1.75) ?
Answer:
A
Step-by-step explanation:
PLS HELP BRAINLIEST TO CORRECT ANSWER
Haley substituted the values of a, b, and c into the quadratic formula below.
x = StartFraction negative (negative 10) plus or minus StartRoot (negative 10) squared minus 4 (7)(negative 2) EndRoot Over 2(7) EndFraction
What was Haley’s function in standard form?
f(x)=___x2+___x+____
Answer:
7, -10, -2
Step-by-step explanation:
I dont know what To Put here srry
There is a question here it pic
Answer:
C = 12.5663706144 cm (round it any way you need)
Step-by-step explanation:
Circumference of a Circle:
C = 2πr
C = 2π(2)
C = 4π
C = 12.5663706144 cm
for brainiest:):):):):):):):)
Answer:
9. 81.3953% increase
10. 26.6667% decrease
Step-by-step explanation:
Hope this helps.
Evaluate the piecewise function for the given values of x by
matching the domain values to the range values.
Answer:
For x = -4f (x) = x + 2
We evaluate the value of x = -4
f (-4) = (-4) + 2
f (-4) = -2
Answer is : f (-4) = -2For x = 4f (x) = -2x + 4
We evaluate the value of x = 4
f (4) = -2 (4) +4
f (4) = -8 + 4
f (4) = -4
Answer is : f (4) = -4For x = 0f (x) = 3x -4
We evaluate the value of x = 0
f (0) = 3 (0) -4
f (0) = 0-4
f (0) = -4
Answer is : f (0) = -4The value of the function at x = 1 is, f(x) = - x - 4 which equals f(1) = - 3.
What is an absolute value function?We know the absolute value function of the modulus function always outputs a positive value irrespective of the sign of the input.
In piecewise terms | x | = x for x ≥ 0 and | x | = - x for x < 0.
Similarly, A piecewise function can also be in terms of without modulus.
Given, f(x) = - x - 4 for x < 3.
f(x) = x² - 7, for 3 ≤x < 12.
f(x) = (120/x) + 5, for x ≥ 12.
Now, At x = 1, It satisfies,
f(x) = - x - 4 for x < 3.
Therefore, f(1) = - (-1) - 4.
f(1) = - 3.
learn more about piecewise functions here :
https://brainly.com/question/28225662
#SPJ7
HELP NO DECIMAL ANSWERS OR YOU WILL BE REPORTED!!!!!!
Answer:
112 inches I believe! I hope this helps!
Step-by-step explanation:
Answer:
2004 cubic inches
Step-by-step explanation:
Looking at the figure, there seems to be a chunk missing from the front. Since the overall length is 15 inches, and the length near the missing chunk is 12, then the missing length is 3. If that chunk was filled in, this would have been a 17 * 15 * 8 rectangluar prism. That would have been 2040 cubic inches. (120 * 17) However, a 3 by 8 by 3 triangular prism is missing.
1/2(3 * 8 * 3)
1/2(24 * 3)
1/2(72)
36
Now, subtract 36 from 2040.
2040 - 36
2004 cubic inches
2004 cubic inches of gas will fill this gas can.
Find the volume of this cone.
Round to the nearest tenth.
15m
5m
Answer:
392.7
Step-by-step explanation:
Answer:
392.7cm³
Step-by-step explanation:
πr²[tex]\frac{h}{3}[/tex]
3.14x5^2x[tex]\frac{15}{3}[/tex]= 392.7cm³
392.7 to nearest tenth= 392.7cm³
10
Select the correct answer
Mike launches a stone using a catapult from a height of 160 feet. The stone reaches its maximum height of 250 feet after 3 seconds, and it hits the ground after 8 seconds.
Which of the following graphs represents the trajectory of the stone?
Answer: W
Step-by-step explanation:
i took the test
Sally's cell phone bill os expected to increase by 7.5% next year . If b represnts the current bill, which expression represent the expected cost of the cell phone bill next year?
Answer:
The expression represent the expected cost of the cell phone bill next year is: c=1.075b.
Step-by-step explanation:
With the information provided, you can say that the expected cost of the cellphone bill next year would be equal to the current bill multiplied for 1 plus the increase in decimal numbers, so the increased amount is added to the current cost. The equation would be:
c=b*(1+0.075)
c=b*1.075
c=1.075b
According to this, the answer is that the expression represent the expected cost of the cell phone bill next year is: c=1.075b.
Each of the options below describes a relationship that you need to graph on a coordinate plane. Which of the options will have a slope of 8? Select all that apply. A) Doing 4 pages of homework in 20 minutes B) Cycling 32 miles in 4 hours C) Buying 10 shirts for $80 D) Reading 72 pages in 9 hours
Answer:
B ; C; D
Step-by-step explanation:
The slope measures the rate of change in the dependent variable per unit change in the independent variable :
From the options :
Doing 4 pages of homework in 20 minutes :
The number of pages done per minute = slope
Slope = 20 / 4 = 5
To cycle 32 miles in 4 hours:.
Number of miles to cycle per hour to achieve the feat :
Slope = 32 /4 = 8
Buying 10 shirts for $80:
Cost per shirt = slope
Slope = $80 / 10
Slope = 8
Reading 72 pages in 9 hours
Number of pages read per hour :
72 / 9 = 8 pages
Help please find the volume of the sphere
Answer: 44.6cm³
The formula is [tex]\frac{4}{3} \pi r^3[/tex].
Since the formula had π (pi) pi is 3.14.
The radius is the line inside the sphere.
That being said, the radius is 2.2, so the line is 2.2 long.
Now, let's solve.
4/3 × 3.14 = 4.186 → 4.19
4.19 × 2.2³ = 44.6
Hence, 44.6 is the answer.
the range of f:x to x*2 for the domain [-2,-1,0,1,2]
a) [0,1,8]
b)[-2,-1,0,1,2]
c) [-6,-3,0,3,6]
d) [-8,-1,0,1,8]
Answer: 4. I think I’m not sure
Step-by-step explanation:
find the area of the shape below
Answer:
230 cm^2
Step-by-step explanation:
A=(7×20)+1/2(20)(16.7)
A=230cm^2
Hope it helps...
Beth says 20-5x3 is 45, pat says 20-5x3 is 5. who is right?
Answer:
Pat is right
Step-by-step explanation:
first multiply/divide then add/subtract,
Beth: 20 - 15 = 45 => 5 ≠ 45
Pat: 20 - 15 = 5 => 5 = 5
Answer:
Pat
Step-by-step explanation:
There is only one correct answer. To find it, you must follow the correct order of operations.
There is a subtraction and a multiplication. There are no parentheses.
The rule is that you must do the multiplication before the subtraction.
20 - 5 * 3 =
= 20 - 15
= 5
In order to get Beth's answer, you'd have to do the subtraction first. If there were parentheses like this: (20 - 5) * 3, then you'd do the subtraction first getting 15 * 3 which is 45, but the problem has no parentheses, so the correct answer is 5.
The correct answer is 5, and Pat is correct.
Answer: Pat
Need help with 9th-grade math. Algebra 1
A ball is thrown in the air. The path of the ball is represented by the equation h=-t^2+8t, where t represents time in seconds and h represents the height of the ball in meters.
What is the maximum height of the ball?
How long is the ball in the air for before it hits the ground?
Answer:
a) 16 meters ; b) 8 seconds
Step-by-step explanation:
The function can be represent with a parabola whose vertex is its maximum point
for answer the first question we have to find the y of the vertex
first of all we have to find the x
Vertex (x) = -b/2a = -8/-2 = 4
if we substitute t with 4, we can find the y
Vertex (y) = -(4^2) + (8*4) =
= -16 + 32 = 16
so the answer is 16 meters
for answer the second question we have to find where the parabola intercepts the x axis, that means solve the associated equation:
-t^2 + 8t = 0
t^2-8t = 0
t(t-8) = 0
t = 0
t = 8
the parabola intercept the x axis in (0,0) and in (8,0)
if we find the distance between this two points we can answer to the question
8-0 = 8 seconds
Answer:
y are you ga
Step-by-step explanation:
Complete the statement with <, >, or =.
___ 1
Answer:
>
Step-by-step explanation:
What is the value of x?
sin 55
=
COS X
Enter your answer in the box.
X=
Answer:
x=arccos(sin(55))+2kπ kEZ
x=-arcos(sin(55))+2kπ ,,
Question 9:
Find the sine of angle I
796
195
Answer:
sin I = 0.244
Step-by-step explanation:
Given that,
Perpendicular, P = 195
Hypotenuse, H = 796
We need to find the value of [tex]\sin(I)[/tex]. We know that,
[tex]\sin\theta=\dfrac{P}{H}[/tex]
Substitute all the values,
[tex]\sin I=\dfrac{195}{796}\\\\\sin(I)=0.244[/tex]
So, the value of sin(I) is equal to 0.244.
A state university has an annual tuition of $12,000. Bradley would like to attend this university and will save money each month for the next 4 years. His grandparents will give him $2,800 for his first year of tuition. Which plan shows the minimum amount of money Bradley must save to have enough money to pay for his first year of tuition?
Answer:
$767 per month for the next 4 years
Step-by-step explanation
first it’s minus the 2800 they gave him and that’s 9,200 then divided by the amount of months in a year which is 12 you end up with 766.6 but rounded that would be the closest answer and then when you multiply 767x12 it’s 9200 plus the 2800 it’s 12,000 which means it checks out.
The length of the hypotenuse of a right triangle is 10m and the length of one of the legs is 8m .
Find the length of the other leg of the triangle