Answer:
2(-2,4) + 2(-1,8)=-8.4
Step-by-step explanation:
2x-2
2x4
2x-1
2x8
-8.4
the cell phone bill recorded that Jeremiah sent 532 text messages last week. On average how many text messages did he send each day?
Answer:
76 messages
Step-by-step explanation:
532 divided by 7 = 76
Answer:
76 Texts
Step-by-step explanation:
Amount of texts/Days = 532/7 = 76
The perimeter of a square garden is 54 feet. What is the length of one side of the garden?
Answer: 13.5
Step-by-step explanation:
54/4 = 13.5
13.5 x 4 = 54
Meliah wants to make a gallon of punch. She uses 2 quarts of orange juice, 1 cup of lemon juice, and 2 1/2 pints of pineapple juice. How many cups of water should she add to make 1 gallon?
Answer:
2 cups of water
Step-by-step explanation:
Meliah wants to make a gallon of punch.
Note that
1 gallons = 16 cups
For Orange juice
She uses 2 quarts of orange juice,
1 quart = 4 cups
2 quarts = x
Cross Mulitiply
2 × 4 cups = 8 cups
For lemon juice
1 cup of lemon juice
For pineapple juice
2 1/2 pints of pineapple juice.
1 pint = 2 cups
2 1/2 pints = x
Cross Mulitiply
2 1/2 × 2 cups = 5 cups
Total number of cups
= 8 cups orange juice + 1 cup lemon juice + 5 cups of pineapple juice
= 14 cups
Hence, the number of cups of water she should add to make 1 gallon is calculated as:
16 cups - 14 cups
= 2 cups of water
A rep hockey team has two goalies. Goalie A has a save percentage of 0.92 and Goalie B has a save percentage of 0.89. If goalie A plays 75 percent of the games and goalie B plays 25 percent of the games then: a) Determine the probability that a save has been made by either goalie A or goalie B. b) If a save has been made, what is the probability that is was goalie A? c) If a goal was let in, what is the probability it was goalie B?
Answer:
a) 0.9125
b) 0.756
c) 0.314
Step-by-step explanation:
The save percentage of Goalie A = 0.92
The save percentage of Goalie B = 0.89
The percentage of the games Goalie A plays = 75 percent
The percentage of the games Goalie B plays = 25 percent
a) The probability that a save has been made by either Goalie A or Goalie B
Therefore we get;
The probability that Goalie A made a save, P(A) = 0.92 × 0.75 = 0.69
The probability that Goalie B made a save, P(B) = 0.89 × 0.25 = 0.2225
For mutually exclusive events, we have;
P(A) or P(B) = P(A) + P(B)
∴ P(A) or P(B) = 0.69 + 0.2225 = 0.9125
The probability that a save has been made by either Goalie A or Goalie B, P(A) or P(B) = 0.9125
b) Where there are 10,000 attempts, made evenly in all games, we have;
The number of attempts made with Goalie A playing = 10,000 × 0.75 = 7,500
The number of saves Goalie A makes = 0.92 × 7,500 = 6,900
The number of saves for 10,000 attempt = (P(A) or P(B)) × 10,000 = 0.9125 × 10,000
The number of saves for 10,000 attempt = 9,125
∴ The probability that Goalie A saves = 6,900/9,125 ≈ 0.756
c) Out of the 2,500 attempts at Goalie B, the number of goals let in is given as follows;
P(Goal B) = 2,500 - 2,500 × 0.89 = 275
The number of goals let in by Goalie A, we have;
P(Goal A) = 7,500 - 7,500 × 0.92 = 600
Therefore, the total number of goals let in = 300 + 275 = 875
The probability that the goals was let in by Goalie B = 275/875 = 11/35 ≈ 0.314.
Mr. Jones surveyed his class to find out how many students feel that Math is their favorite subject. Based on these results, how many students would say that Math is their favorite subject if he asked all 150 students in the 6th grade class.
Answer:
im not sure
Step-by-step explanation:
I remember doing this but i forget
How do I graph these points on a graph?
(-1/2, -3/2)
Answer:
Start at origin (0,0)
Move 1/2 units left
Move 1 and 1/2 units down
Place your point
Step-by-step explanation:
Start at the origin (0,0)
Move 1/2 units to the left
Then move 1 1/2 units down, and place your point.
The first coordinate is locating the position horizontally, or on the x axis
The second coordinate is locating the position vertically, or on the y axis.
If there is a negative number on the x coordinate, the first one, you move left.
If positive, you move right.
If there is a negative number on the y coordinate, the second one, you move down.
If positive, you move up.
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
move toward left of the horizontal x axis then plot the point in between o and -1.For next point then move down the vertical y axis and plot the point in between -1 and -2 .
Step-by-step explanation:
Hope this helps u!!
HURRY!!
In an isosceles triangle, the measure of a base angle is 65º. Find
the number of degrees in the measure of the vertex angle.
Answer:
Your answer is 50 degrees.
Step-by-step explanation:
An isosceles triangles base angles are equal.
A triangle's angles add up to be 180 degrees.
65+65+x = 180
130+x = 180
x = 50
Vertex angle is 50⁰.
What are triangles?A closed two-dimensional figure with three sides, three angles, and three vertices is called a triangle. The smallest polygon with the fewest sides is the triangle. A triangle can be divided into three categories based on its sides:
Scalene Triangle: Each side measures differently.
Isosceles Triangle - Different sides of a triangle are of a similar measure and the excess side has an alternate measure.
An equilateral triangle has three sides that are all the same size.
Given an isosceles triangle,
measure of base angle = 65⁰
in an isosceles triangle two angles are equal and sum of all the angles is 180⁰, the equal angles are called base angle;
let vertex angle be x , according to triangle property
sum of all the angles is 180⁰,
base angle + base angle + vertex angle = 180
65 + 65 + x = 180
x = 180 - 130
x = 50⁰
Hence the the measure of the vertex angle is 50⁰.
Learn more about triangles;
https://brainly.com/question/2773823
#SPJ
Consider triangle ABC.
What is the value of y in the triangle?
С
809
Angle y =
B В
Answer:
50
Step-by-step explanation:
Is the triangle a right triangle?
4 6 7
Is this a right triangle?
Answer:
No
Step-by-step explanation:
Given :-
A triangle with some side measure .The sides are 4 ,6,7.And we need to tell whether it is a right angled triangle or not . It will be a right angled triangle if it follows the Pythagoras Theorem.
Pythagoras Theorem :-
In right angle triangle the sum of squares of the two smallest sides is equal to the square of the largest side .Here the two smallest sides are 4 & 6 .
Sum of Squares of 4 and 6 :-
[tex]:\implies[/tex] 4² + 6²
[tex]:\implies[/tex] 24 + 36
[tex]:\implies[/tex] 60
Square of 7 :-
[tex]:\implies[/tex] 7²
[tex]:\implies[/tex] 49
And :-
They aren't equal. So the triangle is not a right angled triangle .Hence the triangle is not a right angle triangle.
Answer:
No, this triangle is not a right triangle.
Step-by-step explanation:
Step 1: Definition(s)/explanations
This is a right triangle, so the Pythagorean Theorem applies.The Pythagorean Theorem states that the legs of the triangle, squared, must equal the hypotenuse, squared.The legs of the triangle are the sides that make the right angle.The hypotenuse is the longest side.Formula:
[tex]pt-a^2+b^2=c^2[/tex]
[tex]legs=a,b[/tex]
[tex]hypotenuse=c[/tex]
Step 2: Solve.
Now, I just plug the numbers into the formula.
[tex]a^2+b^2=c^2[/tex]
[tex]4^2+6^2=7^2[/tex]
[tex]16+36\neq 49[/tex]
If the legs of the triangle do not equal the hypotenuse, then the triangle cannot be a right triangle.
Step 3: Conclude.
Therefore, the triangle cannot be a right triangle.
Factor using the x method
( please do not answer without showing work )
Answer:
[tex]5(x + 10)(10x - 3)[/tex]
Step-by-step explanation:
We are factoring
[tex]50x^{2} + 485x - 150[/tex]
So:
((2•5^2x^2) + 485x) - 150
Pull like factors :
50x^2 + 485x - 150 = 5 • (10x^2 + 97x - 30)
Factor
10x^2 + 97x - 30
Step-1: Multiply the coefficient of the first term by the constant 10 • -30 = -300
Step-2: Find two factors of -300 whose sum equals the coefficient of the middle term, which is 97.
-300 + 1 = -299
-150 + 2 = -148
-100 + 3 = -97
-75 + 4 = -71
-60 + 5 = -55
-50 + 6 = -44
-30 + 10 = -20
-25 + 12 = -13
-20 + 15 = -5
-15 + 20 = 5
-12 + 25 = 13
-10 + 30 = 20
-6 + 50 = 44
-5 + 60 = 55
-4 + 75 = 71
-3 + 100 = 97
Step-3: Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -3 and 100
10x^2 - 3x + 100x - 30
Step-4: Add up the first 2 terms, pulling out like factors:
x • (10x-3)
Add up the last 2 terms, pulling out common factors:
10 • (10x-3)
Step-5: Add up the four terms of step 4:
(x+10) • (10x-3)
Which is the desired factorization
Thus your answer is
[tex]5(x + 10)(10x - 3)[/tex]
Answer:
[tex] \displaystyle \rm 5({x}^{} + 10)( 10x - 3)[/tex]
Step-by-step explanation:
we would like to factor out the following expression:
[tex] \displaystyle {50x}^{2} + 485x - 150[/tex]
notice that, in every term there's a common factor of 5 thus factor it out:
[tex] \displaystyle 5( {10x}^{2} + 97x - 30)[/tex]
now we have to rewrite the middle term as sum or substraction of two different terms in that case 100x-3x can be considered:
[tex] \displaystyle 5( {10x}^{2} + 100 - 3x - 30)[/tex]
factor out 10x:
[tex] \displaystyle 5( 10({x}^{2} + 10)- 3x - 30)[/tex]
factor out -3:
[tex] \displaystyle \rm 5( 10x({x}^{} + 10)- 3(x + 10))[/tex]
group:
[tex] \displaystyle \rm 5({x}^{} + 10)( 10x - 3)[/tex]
and we are done!
hence,
our answer is B)
30 points for right answer +brainliest plz plz plz helpp!
due in 10 mins where i live plz help!!!!!!!!!!!!!!!!!!hurryy
Answer:
Number one is 48 ft and number two is 92 in.
(4rxt – 8r2x + x²) – (6rx² + 5rxt – 2x)
Find the sum or difference
Please help! I’m stuck and can’t figure it out
Answer:
[tex]sum = (4 - 5)rxt - (8 + 6) {rx}^{2} + (1 + 2)x \\ = - rxt - 14 {rx}^{2} + 3x \\ \\ difference = (4 + 5)rxt + (6 - 8) {rx}^{2} + ( - 2 + 1)x \\ = 9rxt - 2 {rx}^{2} - x[/tex]
[tex] \small{ \underline{{ \blue{becker}}}}[/tex]
1. Find the area of the shaded region.
Answer: A≈153.94
A= π r 2 = π 7 2 ≈ 153.93804
Step-by-step explanation:
When using the quadratic formula to solve 7x2 – 3x + 2 = 0, which number will be squared as part of the formula?
Answer:
The value of b will be squared
Step-by-step explanation:
Recall that the quadratic formula is [tex]x=\frac{-b\pm\sqrt{b^{2}-4ac } }{2a}[/tex]
You will see that the only squared coefficient is b.
Find the circumference of each of the circles described below.
a. Radius of 3 inches
b. Diameter of 27 cm
Answer:
a) 18.85 or 19
b) 84.82 or 85
The graphs of linear functions fand g are shown on the grid.
which function best represented by the graph of g
Answer:
g(x) = 3f(x)
Step-by-step explanation:
We can see that for function g;
When x = 1, y = 3
When x = 2, y = 6
When x = -1, y = -3
When x = -2, y = -6
For function f;
When x = 1, y = 1
When x = 2, y = 2
When x = -1, y = -1
When x = -, y = -2
We can see that the output of g(x) is always 3 times that of f(x) for same values of x.
Thus;
g(x) = 3f(x)
Alfred paid $36,187.89 for his new car. If he took out a loan and was given a 3.15 % interest rate compounded semi-annually for ó years, how much did he borrow? Round your answer to the nearest whole number.
Answer:
[tex]A = P(1+\frac{r}{n})^{nt}\\\\[/tex]
A = 36187.89
r= 3.15% = 0.0315
n = 2
t = 6
[tex]36187.89= P(1 + \frac{0.0315}{2} )^{2*6)[/tex]
[tex]36187.89 = P( 1+0.01575)^{12}\\\\P = \frac{36187.89}{1.01575^{12}} = 30000.0024[/tex]
Answer $30,000
How many times does the graph of the function below intersect or touch the x-axis? y=-3x2 + x+4 A. 2 B. 1 C. 3 D. 0
Answer:
this is your ans.. i hope it is helpfull
❓❓❓❓❓❓ anyone know this
Answer: (-1,3) ; (-2,6)
Step-by-step explanation:
The solution would be where the two graphs intersect or touch (where the line and the parabola intersect or touch).
Look at the two dots on the plane, where the line and parabola intersect--those are the answers.
Which of the following is closest to the sample standard deviation of the data set shown below?
{13, 14, 17, 22, 26, 30, 31}
(1) 5.2
(3) 7.4
(2) 6.1
(4) 8.3
What is Harry's unpaid balance?
0 $74.89
O $89.89
O $112.50
0 $127.50
Answer:
what is harry unpaid balance
0$74.89
give another name for plane r
Answer:
P maybe
Step-by-step explanation:
Isabella is playing a board game. The probability that Isabella will lose a turn on her next turn is 11%. Which word or phrase describes the probability that Isabella will lose a turn?
Answer:
unlikely
Step-by-step explanation:
11% is closer to 0 than it is to 1/2. when something may occur, but significantly less than half of the time, we say it is unlikely
If you borrowed $10,000 at 6% interest rate for 1 year, what is the interest payment at the end of the year?
Answer:
$600
Step-by-step explanation:
I = prt
I = 10000 x .06
I = 600
Answer:
$600
Step-by-step explanation:
$10,000 x 0.06 = $600
need help on question 26
Answer:
y = 2x - 3.
Step-by-step explanation:
26, The slope is 2 and y-intercept is -3
a) Make t the subject of the formula
[tex]( \sqrt{t + 2) \div u = 1} [/tex]
Solve the pattern puzzle below. Find the missing number to replace the question mark.
pls answer
Answer:
9 + 8 = 17
for instance, look at the numbers below 13, (7 and 4) notice how when you add those together you get the number that is across from it?
(7+4=11)
Answer:
I don't know how to explain but I think it is 17
Step-by-step explanation:
If you can see the opposite side of the number, so lets say 8 on the outer. In the middle is 7 and 9, 7 and 9 makes 16 and if you do the rest of the circle you will get 17.
Hopefully is correct!
What is the probability of a customer buying a vegetable that is not an onion at this store?
79%
81%
90%
19%
Look at the parallelogram pictured in Figure 1. What is the area of the
parallelogram?
Answer:
45m²
Step-by-step explanation:
=> Area = base × height
=> A = 5m × 9m
=> A = 45m²
y = kx
In the equation, what does "k" represent?
Answer: it’s the number that stays the same
Step-by-step explanation: ex. y = 24(6x)