Answer:
Its D because I did the math
Is 22,18,12 a right triangle
Answer:
Step-by-step explanation:
12²+18²=144+324=468
22²=484
468<484
12²+18²≠22²
it is not a right angled triangle.
Rewrite
1 2/3 (one and two thirds) using fifteenths.
PLEASE HELP
Find the length of the missing side.
Answer:
use Pythagoras theorem
the missing side is base
Step-by-step explanation:
pythagoras theorem
h^2 = p^2 + b^2
73^2 = 48^2 + b^2
5329 = 2304 + b^2
5329 - 2304 = b^2
3025 = b^2
√3025 = b
55 = b
Chicken Delight claims that 92% of its orders are delivered within 10 minutes of the time the order is placed. A sample of 85 orders revealed that 74 were delivered within the promised time. At the 0.05 significance level, can we conclude that less than 92% of the orders are delivered in less than 10 minutes?
Answer:
Kindly check explanation
Step-by-step explanation:
H0 : π ≥ 0.92
H1 : π < 0.92
At α = 0.05
Left tail
Z0.05/2 = Z0.025 = - 1.645
The test statistic
Zstatistic :
(m - p) / σ
Sample size, n = 85
m = 74/85 = 0.87
p = 0.92
σ = sqrt(p(1 - p) /n)
σ = sqrt(0.92(1 - 0.92) / 85)
σ = sqrt(0.0008658)
σ = 0.0294258
σ = 0.0294
Zstatistic :
(m - p) / σ
(0.87 - 0.92) / 0.0294
Zstatistic = −1.700680
Zstatistic = - 1.70
Decision region :
Reject H0: if ;
Zstatistic < Zcritical
-1.70 < - 1.645
Since,
Zstatistic < Zcritical ; then Reject H0.
A bike repair shop charges $10 to evaluate a bike and $5 per hour to repair it.
Jenny can hike 5 kilometers in 30 minutes. What is Jenny’s average hiking speed in kilometers per hour?
Answer:
10
Step-by-step explanation:
5*2 is 10
Answer:
30 minutes is half of an hour
so multiply both 30 and 5 by 2
So for every hour, Jenny hikes 10 kilometers
To build a deck, Roberto needs to buy 180 screws (s), 9 posts (p), and 36 pieces of 1" by 6" lumber (l). He already had the rest of the materials for the deck that he needs. An expression that represents his purchases is shown below:
180s + 9p + 36l
Part A:
Factor the expression that represents Roberto's purchases.
Part B:
The costs of buying the deck materials are shown in the chart below:
Material Cost
100 screw container $6.99
1 post $16.40
Set of 10 pieces of lumber $88.20
What materials does Roberto need to buy?
Part C:
What is the total cost to buy the deck materials (excluding tax)?
The total cost of materials can be found from a list of materials based on the market unit rate.
The correct responses are;
Part A: The factored expression is; 9 × (20·s + p + 4·l)Part B: The materials to be bought are; 2 cartons of screws, 9 pieces of posts, and 4 sets of 10 pieces of lumber.Part C: The total cost of materials is $514.38.Reasons:
Part A: The given expression representing the purchase is presented as follows;
Purchases = 180·s + 9·p + 36·l
Where;
s = Screws
P = Posts
l = Lumber
The factored expression is found as follows;
Purchases = 180·s + 9·p + 36·l = 9 × 20·s + 9·p + 9 × 4·l, which gives;
180·s + 9·p + 36·l = 9 × (20·s + p + 4·l)
The factored expression is; 9 × (20·s + p + 4·l)
Part B: The costs are;
100 screws = $6.99
1 posts = $16.40
10 pieces of lumber = $88.20
The materials Roberto need to buy are;
180 screws, which can be obtained by buying 2 cartons of screws.
9 posts, which is obtained by buying 9 pieces of posts.
36 lumber which can be obtained by buying 4 × 10 pieces = 40 pieces of lumber.
Therefore, the, material Roberto needs to buy are;
2 cartons of screws
9 pieces of posts
40 pieces of lumber
Part C: The total cost of the materials are therefore;
2 cartons of screws × $6.99 per carton = $13.98
9 pieces of posts × $16.40 per piece = $147.6
4 Sets of 10 pieces of lumber × $88.20 per set = $352.8
The total cost = $13.98 + $147.6 + $352.8 = $514.38
Learn more here:
https://brainly.com/question/15469807
What is the degree of 7 x6 - 6x5 + 2x3 + x-8?
O A. 6
O B. 7
O c. 5
O D. 8
is -9 irrational or rational
Answer:
Rational because it's a whole number
hope this helps
have a good day :)
Step-by-step explanation:
Question 4 of 10
Given B(-7, 4), what are the coordinates of B' after the translation (x+3, y-2)?
A. (10, 2)
B. (-4, 2)
C. (2, 10)
D. (-4,-2)
Give me answer pls I need now
Answer:
B
Step-by-step explanation:
(x) -7+3=-4
(y) 4-2=2
(-4,2)
Help&EXPLAIN
Don’t use for points or I’ll take it back and report
Simplify the expression.
2/5y − 4 + 7 − 9/10y =
Answer:
-y-6/2
Step-by-step explanation:
Answer:
− y-6/2
Step-by-step explanation:
Which figure shows a line segment?
K
D
Step-by-step explanation:
Option c shows line segment because it has no arrow marks
30 cm = mm
Pls help me!!!
Answer:
300
Step-by-step explanation:
Multiply the length which is 30 cm by 10 to give you the length in mm.
Answer:
0.3
Step-by-step explanation:
Write a multiplication equation with one variable and one fraction that has the solution 8
If f(x) = |x| + 9 and g(x) = –6, which describes the range of (f + g)(x)?
Answer:
it’s A. (f+g)(x) is greater than or equal to 3 for all values of x.
Step-by-step explanation:
I got it right on the test.
Answer:Yoo the anser is A
Step-by-step explanation:
for the makeupo math corse
-(f + g)(x) 3 for all values of x
When you multiply a given fraction by a factor greater than 1, the product will (always, sometimes, never) be less than the given fraction
9514 1404 393
Answer:
sometimes
Step-by-step explanation:
For positive numbers, multiplying by a factor greater than 1 increases their value:
(1/2) × 2 = 1 > 1/2
For negative numbers, multiplying by a factor greater than 1 decreases their value:
(-1//2) × 2 = -1 < -1/2
So, "sometimes" the product will be less than the given fraction.
What is an equation of the line that passes through the point (-5 7) and is parallel to the line x-5y=15
Answer:
Step-by-step explanation:
Parallel lines have same slope.
y = mx + b
Slope = m & y-intercept = b
x - 5y = 15
-5y = -x + 15
y = [tex]\frac{-1}{-5}x + \frac{15}{-5}\\\\[/tex]
[tex]y = \frac{1}{5}x - 3[/tex]
so, slope = 1/5 ; (-5 , 7)
y -y1 = m(x -x1)
[tex]y - 7 = \frac{1}{5}(x- [-5])\\\\y - 7 =\frac{1}{5}(x + 5)\\\\y - 7 = \frac{1}{5}x+5*\frac{1}{5}\\\\y - 7 =\frac{1}{5}x+1\\\\y =\frac{1}{5}x+1+7\\\\y=\frac{1}{5}x + 8[/tex]
3. What is a reasonable r-value for the scatterplot below?
O r=1
or=0.333
O r=0.972
or= -0.976
Answer: r= 0.972
Step-by-step explanation:
Each side of a pentagon is 20 inches longer than the previous side. What is the length of the shortest side is the perimeter is 401 inches?
Answer:
40.2
Step-by-step explanation:
Side 1= x
Side 2= x+20
Side 3= x+40
Side 4= x+60
Side 5= x+80
Total perimeter= 401
x+x+20+x+40+x+60+x+80= 401
Simplify it...
5x=201
x= 40.2
This is the answer= 40.2
Please award me brainliest!
Thanks!
The length of the shortest side of the pentagon would be:
40.2
Find the lengthGiven that,
Every side of a pentagon is longer by 20 inches.
No. of sides in pentagon = 5
So,
Ist side of the pentagon [tex]= x[/tex]
IInd Side of the pentagon [tex]= x + 20[/tex]
IIIrd Side of the pentagon [tex]= x + 40[/tex]
IVth Side of the pentagon [tex]= x + 60[/tex]
Vth Side of the pentagon [tex]= x + 80[/tex]
We know that,
Perimeter = Sum of all the sides
Since the perimeter is 401 inches, the side can be determined through:
[tex]401 = x+x+20+x+40+x+60+x+80[/tex]
⇒ [tex]401 = 5x + 200[/tex]
⇒ [tex]401 - 200 = 5x[/tex]
⇒ [tex]201/5 = x[/tex]
∵ [tex]x = 40.2[/tex]
Thus, 40.2 is the correct answer.
Learn more about "perimeter" here:
brainly.com/question/6465134
please help me asap
Answer:
2. 12 x 5
60
3. 10.8+10.8+5.1+5.1
31.8
hope it helps
what is 6(-5n + 7) simplified?
Answer:
-30n+42
Step-by-step explanation:
You have to use distributive property.
Multiply 6 with -5n which is -30n. Then, Multiply 6 with 7 which is 42. Since, 5n is negative the product is also negative, and since 7 is positive the product is positive. Therefore you will get, -30n+42.
I hope this helps!
Could I get brainliest? ✨
The simplified form of 6(-5n + 7) is -30n + 42.
To simplify the expression 6(-5n + 7), we apply the distributive property. The distributive property states that when we multiply a number outside the parentheses by an expression inside the parentheses, we must multiply it by each term inside the parentheses.
In this case, we have 6 multiplied by the expression (-5n + 7).
Multiplying 6 by -5n gives us -30n, and multiplying 6 by 7 gives us 42.
So, combining these results, we get -30n + 42.
This simplified expression, -30n + 42, cannot be further simplified because there are no like terms to combine.
Therefore, 6(-5n + 7) simplifies to -30n + 42.
To learn more about the expression;
brainly.com/question/24242989
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Susie's curtain company is making curtains for a local hotel. She wants each curtain to be 48 inches long. At the fabric store, fabric is sold by the foot. If Susie's curtain company wants to make 52 curtains, how many feet of fabric will she need?
1 inch =
1
12
foot PLease help
PLEASE HELP ME!!!!!!!
Answer:
orange
Step-by-step explanation:
What's 258/42?
What's 4,274/51?
What's 7,106/ 78?
What's 28,440/ 72?
(Make sure there's no Decimal point, the answer has to be like 27 R2 for example.)
please help thank you
Was it easier to add, subtract, divide, or multiply polynomials?
Explain why?
Is for a essay help me
Answer:
Add them
Step-by-step explanation:
PLZ HURRY IT'S URGENT!!!
What are the roots of the quadratic?
-3 and 0
-3 and 1
-1 and 3
-1 and -3
Answer:
Roots are also called x-intercepts or zeros. A quadratic function is graphically represented by a parabola with vertex located at the origin, below the x-axis, or above the x-axis. Therefore, a quadratic function may have one, two, or zero roots. are given by the quadratic formula.
Step-by-step explanation:
pls help i’m on the verge of tears
Answer:
Aw don't cry <3
It would be easier if you use a website with a graph! There is a website called "desmos" and if you search up desmos graphing calculator you will find it. Type in the points in the website, and it would add in the points for you.
but here is a piece of key information:
Make [tex]\frac{3}{4}[/tex] into a decimal. That would be 0.75.
Since it says "of the way from", count the boxes in the graph from each point.
Hope this helps! ^.^
Starting at a fixed time, each car entering an intersection is observed to see whether it turns left (L), right (R), or goes straight ahead (A). The experiment terminates as soon as a car is observed to turn left. Let X = the number of cars observed. What are possible X values? List five different outcomes and their associated y values.
Answer:
Outcomes are { L, RL, AL, RAL, ARL }
Associated X values are { 1, 2, 2, 3, 3 }
Step-by-step explanation:
As given,
left = (L),
right = (R)
goes straight ahead = (A)
Now,
The Sample space become = { L, RL, AL, RAL, ARL }
In L -
Number of cars = 1
In RL-
Number of cars = 2
In AL-
Number of cars = 2
In RAL-
Number of cars = 3
In ARL-
Number of cars = 3