Answer:
The x intercept is -8
Step-by-step explanation:
To find the x intercept, set y = 0 and solve for x
5x - 10y + 40 = 0
5x - 10(0) +40 =0
5x +40 = 0
Subtract 40 from each side
5x = -40
Divide by 5
5x/5 = -40/5
x = -8
The x intercept is -8
Nick spent 2.5 hours to travel a distance of 90 km by car. What is the rate of the car?
Answer:
36km/h
speed =distance/time
= 90/2.5
=36km/h
How many cubic inches are in two-thirds of one cubic foot?
PLZ HELP DUE TODAY MARK BRAINLLEST AND GIVE 25 POINTS
Answer:
592 divided by 16=37
Answer:
592 divided by 16 is 37
3 boxes on top:
5 tens + 92 = 592
Step-by-step explanation:
:)
Mr. lang has two sons the sum of their ages 19. the product of their ages is 84. how old is Mr. lang youngest son
Answer: The age of Mr. Lang's youngest son is 7 years old.
Step-by-step explanation:
Let's start by listing the factors of 84. The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 and 84.
We can only use numbers that are under 19 since we must add up to that total. Now we are left with 1, 2, 3, 4, 6, 7, 12, and 14,
1 can't be an option since 18 is not there to pair with it to add together for 19. For the same reason we can eliminate 2, 3, 4, 6, and 14.
Now we are left with 7 and 12. Let's see is they will work.
7+12=19
7×12=84
It works! Since 7 is the smaller number that's the age of Mr. Lang's youngest son.
Answer:
7 !
Step-by-step explanation:Let's start by listing the factors of 84. The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 and 84.
We can only use numbers that are under 19 since we must add up to that total. Now we are left with 1, 2, 3, 4, 6, 7, 12, and 14,
1 can't be an option since 18 is not there to pair with it to add together for 19. For the same reason we can eliminate 2, 3, 4, 6, and 14.
Now we are left with 7 and 12. Let's see is they will work.
7+12=19
7×12=84
It works! Since 7 is the smaller number that's the age of Mr. Lang's youngest son.
which expression is equivalent to the area of square A in inches ?
Answer:
D - 10^2+24^2
Step-by-step explanation:
So, there are a few important things here to go over:
First off, the formula for area of square is l*w, but since a square's length and width are equal, this will just be l^2.
Secondly, the formula for pythagreons theorm is a^2+b^2=c^2. This is what we will use to find the side length of A.
So, we see that there is a triangle that is made up of the top side of the organge square, the left side of the green square, and the right side of the blue square.
To find the righ side of the blue square, we need to use the pythagreons theorm.
This is because the hypotenuse of the triangle(C), is also the right side of square A.
The A and B that we use to find C in pythagreons theorm we know is 24 and 10.
Lets plug this in:
10^2+24^2=c^2
=
100+576=676
Normallu, to find the length of the side, we would root the 676. However, since area is x^2, and we found ^2=676, we are fine.
So tecnically, 10^2+24^2=A.
Or:
[tex]10^2+24^2=A[/tex]
This looks like D
Hope this helps!
what describes the inflection point of a bell-shaped curve?
Answer:
a point like this on a curve is called inflection point. every normal curve has inflection point at exactly 1 standard deviation on each side of the mean
Step-by-step explanation:
Sana maka tulongg
Does this graph represent a function? Why or why not?
10
00
8
NJ
2
-10 -8 6 4-2,
2 4
8
8 10
-8-
-10+
O A. No, because it is not a straight line.
O B. Yes, because it is a curved line. •
C. No, because it fails the vertical line test.
D. Yes, because it passes the vertical line test.
If A = {1,3,5,7,9, B = {0,36 lotin
AUB.
Step-by-step explanation:
a union b is 0 1 3 5 6 7 and 9 thank you very much please mark the answer as brainliest
ance
Use the graph to complete the statements.
The car gets
miles to the gallon.
After the car has traveled
miles, 2
gallons of gas have been consumed.
Answer:
Where’s the graph?
Step-by-step explanation:
Help me to do exercise no 4
Answer:
y=50 and z=60 (vertically opposite)
x+60+y=180
or x+60+50=180
or x+110=180
or x=70
Answer:
Step-by-step explanation:
a.x = 95 degree
reason = being vertically opposite angles
x + 145 degree = 180 degree
x = 180 -145
x=35 degree
reason = being linear pair
b.40 + x =90 degree
x = 90 - 40
x = 50 degree
reason = being perpendicular
y = x + 40
y = 50 + 40
y = 90 degree
reason = being vertically opposite angles
c.50 + 60 + x=180 degree
110 + x =180
x = 180-110
x = 70 degree
reason = being linear pair
z = 60 degree
reason = being vertically opposite angles
y = 50 degree
reason = being vertically opposite angles
d. x = 80 +10
x =90 degree
reason = being vertically opposite angles
y + x =180 degree
y + 90 =180
y = 180 - 90
y = 90 degree
reason = being linear pair
write short note on the rules on how to bisect a line
Answer:
here the answer is
If u want nore help please follow
Step-by-step explanation:
STEP 1: Draw a straight line with a ruler. STEP 2: Put the pin of a compass at the end of the line you want to bisect. Set the compass to more than half the length of the line, and draw an arc crossing the line. STEP 3: Keep the width of the compass the same, and from the opposite end of the line draw another arc.
Answer:
First, in your compass take more than half of the given line, i.e, if the line is 5 centimeters, then in the compass take a length more than five centimeters.
Second, Draw an arc, by keeping the compass needle on one end of the line, and do the same by keeping it on the other end.
Two of the arcs will intersect at a point.
Third, do the same, but in the back-ward direction, as in the below of the line. These two will also intersect.
Lastly, draw a line connecting the intersection of the top and below arcs.
I couldnt add the last pic because of the 5 attachments rule. Like I said in the last rule, just join the two arc intersections.
Thank You
Hope u understood
Solve for all solutions of p.
We are given the equation below:
[tex] \large{ {p}^{2} = \frac{9}{36} }[/tex]
Use the property below:
[tex] \large \boxed{ {x}^{2} = \frac{a}{b} \longrightarrow x = \pm \frac{ \sqrt{a} }{ \sqrt{b} } \: \: (a \geqslant 0 \: \: and \: \: b > 0)}[/tex]
From the equation:
[tex] \large{p = \pm \frac{ \sqrt{9} }{ \sqrt{36} } } \\ \large{p = \pm \frac{3}{6} \longrightarrow p = \pm \frac{1}{2} }[/tex]
Hence the answer is p = ± 1/2.
Answer
p = 1/2, -1/2p = ± 1/2Both answers work. The second answer is in the plus-minus form.
Hope this helps! Let me know if you have any doubts.
select the correct answer
Consultant plans a survey to determine what % of the patients in a particular hospital were satisfied with the care they received after a major treatment. How many such patients should be surveyed so the margin of error for a 90% confidence interval is within .05? Suppose it is known from a past survey that such a % may be about 80%.
Solution:
Required margin of error = 0.05
Estimated population proportion p = 0.8
Significance level = 0.10
The [tex]\text{provided estimate population proportion}[/tex] p is 0.8
The significance level, α = 0.1 is [tex]z_c=1.645[/tex], which is obtained by looking into a standard normal probability table.
The number of patients surveyed to estimate the population proportion p within the required margin of error :
[tex]$n \geq p(1-p)\left(\frac{z_c}{E}\right)^2$[/tex]
[tex]$=0.8\times (1-0.8)\left(\frac{1.64}{0.05}\right)^2$[/tex]
= 173.15
Therefore, the number of patients surveyed to satisfy the condition is n ≥ 173.15 and it must be an integer number.
Thus we conclude that the number of patients surveyed so the margin of error of 90% confidence interval is within 0.05 are n= 174.
Line JK passes through points J(–3, 11) and K(1, –3). What is the equation of line JK in standard form?
7x + 2y = –1
7x + 2y = 1
14x + 4y = –1
14x + 4y = 1
Answer:
7x + 2y = 1
Step-by-step explanation:
First we find the slope m of the line
The slope of a line that passes through 2 points x1, y1 and x2 , y2 is given as
m = (y2 - y1)/(x2 - x1)
Considering the points (–3, 11) and K(1, –3), the slope of the line m
= (-3-11)/(1 --3)
= -14/4
= 7/2
the line JK may be given as
y - 11 = -7/2(x - -3)
multiply through the equation by 2
2y - 22 = -7(x + 3)
2y - 22 = -7x - 21
7x + 2y = 22 - 21
7x + 2y = 1
Answer:
B
Step-by-step explanation:
7x + 2y = 1
A — 5х – 12°
B = 2х + 24°
B.
A
help i need help lol
Answer:
D
Step-by-step explanation:
Peng bought 19 stationary bikes for $748 each. How much did she soend on stationary bike? Write an expression with the solution
Answer:[tex]\$ 14,212[/tex]
Step-by-step explanation:
Given
Peng bought 19 stationary bikes for $748 each
The cost of 19 bikes is the multiplication of the cost of each bike times the total bikes
[tex]\Rightarrow \text{Cost= }19\times 748\\\\\Rightarrow \text{Cost= }\$ 14,212[/tex]
Thus, she spends [tex]\$ 14,212[/tex] on 19 bikes.
The expression
means 15 minus the product of 5 times the difference of p minus 6. If p = 8, then the value of the expression is
Answer:
5
Step-by-step explanation:
15-5(p-6)
15-5(8-6)
15-5(2)
15-10
5
100 POINTS The vertices of a rectangle are (3, 7), (6, 7), (6, 1), and (3, 1). Find the perimeter of the rectangle.
Perimeter of the rectangle = 18 units
Rick is facing east.He makes three-quarters of complete turn clockwise.Which direction is Rick now facing?
Answer: directly north
=============================================
Explanation:
A one quarter turn is 1/4 of 360 degrees, so it's (1/4)*360 = 90 degrees.
Three quarters of a full turn is (3/4)*360 = 270, or you could triple the 90 to get 90*3 = 270.
Rick starts facing directly east. Then he rotates 270 degrees clockwise to end up facing directly north. Refer to the diagram below.
i need help plssss answer the question if you know
Answer:
149.59062 cm^2
Step-by-step explanation:
area of circle=πr^2
=3.142*(6.9)^2
=3.142*47.61
=149.59062 cm^2
Write an equation of the line with slope 4 and y-intercept (0, 2).
Answer:
y = 4x +2
Step-by-step explanation:
The slope intercept form of an equation is
y = mx+b where m is the slope and b is the y intercept
y = 4x +2
Can someone tell me step by step on how to solve this?
Answer:
[tex]\text{B. }\triangle DKM[/tex]
Step-by-step explanation:
When naming a triangle or any polygon, the name should consists of either the center of the polygon or each of the vertices (points) of the triangle. In this case, no center is labelled, so we will use the vertices to name the triangle.
The vertices or points of the triangle are D, K, and M. Therefore, we name this triangle by writing a triangle symbol [tex]\triangle[/tex] followed by these vertices.
Unless you're comparing it to another polygon (e.g. writing a similarity statement), the order of which you list the vertices does not matter, but you should start with a point and move either clockwise or counterclockwise until you list every point. Therefore, the answer is [tex]\boxed{\text{B. }\triangle DKM}[/tex].
UMM SORRY AGAIN THO.
Question 4
Answer: Choice A) 3/10---------------------
Explanation:
There are 5 green, 9 red, and 6 blue. That makes 5+9+6 = 20 total marbles. Of this total, 6 are blue. The probability of picking blue is 6/20 = 3/10
==============================================================
Question 5
Answer: Choice C) x < 6---------------------
Explanation:
The open hole at 6 means we do not include this value as part of the shaded solution set. So we either have "less than" or "greater than".
We go with "less than" since the shaded region is to the left. This describes all values smaller than 6.
If you had "or equal to" as part of the inequality, then you would have a filled in circle at the endpoint.
Joe's lunch at a restaurant costs $13.00 without tax. He leaves the waiter a tip of 17% of the cost of the lunch, without tax. What is the total cost of the lunch, including the tips, without tax?
Answer: $15.21
Step-by-step explanation:
Given
Joe's lunch cost $13.00 without tax
He tipped the waiter with 17% of bill without tax
So, the amount of tip is
[tex]\Rightarrow 13\times 17\%\\\Rightarrow 13\times 0.17\\\Rightarrow \$2.21[/tex]
Total amount that food costs without tax is
[tex]\Rightarrow 13+2.21\\\Rightarrow \$15.21[/tex]
helpppppppppppp meeeeeeeeeeeeeeee
Answer:
Y=75x+125
Step-by-step explanation:
Your answer is correct. It is c. The equation is y=Mx+b where m is the slope and b is the y intercrept.
To get M (the slope), get the difference of y-y/x-x. You can use any value of y and x. So, 575-500/6-5=75/1 ot 75. Therefore 75 is m in the equation y=Mx+b.
To get b, you figure out what y is when x is 0. So, looking at the numbers, subtract 75 from 350, which means that y is 275 when x is 2. Subtract 75 again to get 200 (275-75) when x is 1. Subtract 75 one more time to get y when x is 0. 200-75=125. 125 is the y intercept.
Going back to the equation y-Mx+b. Fill in m and b. Y=75x+125.
Find the circumference of circle K. Round your answer to the nearest tenth of a centimeter and use 3.14 to approximate pi. (It's a multiple choice question)
An initial population of 325 quail increases at an annual rate of 11%. Write an exponential function to model the quail population. Group of answer choices
Answer:
f(x) = 325*1.11ˣStep-by-step explanation:
Initial population = 325Increase rate = 11% or 0.11Required function is:
f(x) = 325(1 + 0.11)ˣ f(x) = 325*1.11ˣJames drew a scaled version of Triangle J using a scale factor of 4 and labeled it Triangle K. The base of triangle J is 5 units and the height of triangle J is 4. What is the area of triangle K?
Answer:
160
Step-by-step explanation:
If the scale factor is 4, we would have to multiply the height and width by 4
4*5=20
4*4=16
Now to find the area of the triangle using the formula (20*16)/2
That equals to 160