7874
to find:7874 rounded to 1 sf
solution:if the previous digit is 5 or more round up, if not keep it as it is.
1 sf= 8000
therefore, 7874 rounded to 1 sf is 8000.
Answer:
8000
Step-by-step explanation:
Since the leftmost 7 is in the thousands place, you need to round the number to the nearest thousand. The digit to the right of the first 7 is an 8, so 7 goes up 1 to 8.
Answer: 8000
Divide: 91,035 ÷ 51 Enter the answer in the box.
How are angles formed by intersecting lines related?
Answer:
When two lines intersect they form two pairs of opposite angles, A + C and B + D. Another word for opposite angles are vertical angles. Vertical angles are always congruent, which means that they are equal. Adjacent angles are angles that come out of the same vertex.
Please Vote Me Brainliest. Thank You.
how do you do elimination and substitution in math??? I am literally so confused AND I have my math final tomorrow!!!
The algebraic method for solving simultaneous linear equations is the substitution method
The elimination method is the process of eliminating one of the variables in the system of linear equations using the addition or subtraction methods
What is an equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
The algebraic method for solving simultaneous linear equations is the substitution method. The value of one variable from one equation is substituted in the second equation in this procedure, as the name implies.
The elimination method is the process of eliminating one of the variables in the system of linear equations using the addition or subtraction methods in conjunction with the multiplication or division of coefficients of the variables.
To know more about equations follow
https://brainly.com/question/2972832
#SPJ1
please help me im failing math
Answer:
C
Step-by-step explanation:
-Since dot or where the line originates is at 4 we know the answer will have the number 4.
-The dot is hollow, meaning it does not include the number it is on. So it cannot be "blank and equal to."
-Since the arrow points towards the right, we know it wants all values greater than 4, so we do: x>4.
-Back to my second point, we know it is not D because the dot is open and it does not include 4, so it cannot be equal to it.
Round your answer to the nearest hundredth.
A= ?
Answer:
ok , using Pythagoras theorem hyp²=opp²+adj² therefore /CB/ will be opp , Making A the angle
7²=opp²+5² which is 49=x²+25
x²=49-25=✓24
=4.9
using SOH CAH TOA
sin A = 4.9/7
=0.7 , A is then sin-¹ 0.7
=136
use cosine since you are given the adjacent side and the hypotenuse
Cos θ = [tex]\frac{adj}{hyp}[/tex]
Cos θ = [tex]\frac{5}{7}[/tex]
use the inverse of cosine to find the angle
θ = [tex]cos^{-1}(\frac{5}{7})[/tex]
θ = 44.4153086...
θ = 44.42°
A parabola opening up or down has vertex (0,-4) and passes through (-12,14). Write its equation in vertex form
The value of a will be 0.125. Then the value of a is positive then the parabola will be upward.
What is the parabola?It's the locus of a moving point that keeps the same distance between a stationary point and a specified line. The focus is a non-movable point, while the directrix is a non-movable line.
A parabola opening up or down has vertex (0,-4) and passes through (-12,14).
The equation of the parabola is given as
y = a(x - h)² + k
where (h, k) is the vertex of the parabola.
(h, k) = (0, -4)
Then the equation of the parabola will be
y = a(x)² - 4
The parabola is passing through (-12, 14). Then the value of a will be
14 = a(-12)² - 4
14 = 144a - 4
144a = 18
a = 1/8
a = 0.125
Then the equation of the parabola will be
y = 0.125x² - 4
If the value of a is positive then the parabola will be upward.
More about the parabola link is given below.
https://brainly.com/question/8495504
#SPJ1
Mary needs a board 4 feet and 8 inches long she cut a board 56 inches long is the board mary cut the right length? give a clear and appropriate answer, and tysm for whoever will help me
Answer:
4 ft 8 inches = 56 inches
Step-by-step explanation:
We know that there are 12 inches in a foot so first convert 4 ft to inches
4 ft = 4*12 = 48 inches
Add the 8 inches left over
48 inches + 8 inches
56 inches
4 ft 8 inches = 56 inches
Janelys needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 5.75 hours and charged her $168 for parts. The total was $426.75. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.
Answer: x = 45
Step-by-step explanation:
The equation is 5.75 x + 168 = 426.75 and cost of the labor per hour is 45.
It is required to find the value of x.
What is algebra?A part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.
Given:
The expression is
5.75 x + 168 = 426.75,
where 5.75x represents the cost of labor per hour, 168 is the cost of the parts, and 426.75 is the total.
According to given question we have,
5.75 x + 168 = 426.75,
Substract 168 from both sides we get,
5.75 x + 168-168 = 426.75-168
5.75x = 258.75
x = 45
Therefore, the equation is 5.75 x + 168 = 426.75 and cost of the labor per hour is 45.
Learn more details algebra here:
https://brainly.com/question/24875240
#SPJ2
What is the area in square units of the rectangle 3/4 and 2/5?
Answer:
3/10 units^2
Step-by-step explanation:
A = l×b
=3/4 × 2/5
=3/10 units^2
Need help in math ASAP
Answer:
B
Step-by-step explanation:
Find the volume of the wading pool
Use V = pi * r^2 * h
Givens
r = 6 feet
h = 1.5 feet
pi = 3.14
2 f^2 takes 2 minutes.
Solution
V = pr * r^2 + h
r = d/2
r = 6 / 2
r = 3 feet
Put the givens into the formula
V = 3.14 * 3 * 3 * 1.5
V = 42.39 cubic feet
Time
2 cubic feet takes 1 minutes
42.39 cubic feet takes x
2/42.39 = 1/x Cross multiply
2x = 42.39 Divide by 2
2x/2 = 42.39/2
x = 21 rounded to the nearest whole number.
If a ∝ b and a = 18 when b = 3, then find a when b = 5.
show how you got ur answer so I can see if it makes sense!
"a ∝ b" means "a is proportional to b", which in turn means there is some constant k such that
a = kb
We're given that a = 18 and b = 3, so that
18 = 3k ⇒ k = 6
Then when b = 5, we would have
a = 6 × 5 = 30
Divide. Give the quotient and the remainder.
437/7
Cameron lives in Charleston, South Carolina. In his research, he found that the population was 10,050 in year 2000 and in 2007, the population was 23,000. What is the predicted population for 2014?
Answer:
The current population of Charleston, South Carolina is 141,931 based on our projections of the latest US Census estimates. The US Census estimates the 2018
Step-by-step explanation:
WILL GIVE BRAINLIST TO BEST ANSWER
Determine whenever each statement about the scatter plot is true or false
Test scores tend to be higher when the number of minutes studies is higher
Answer:
T
Step-by-step explanation:
if you look only one with high study time got a lower score then the rest with high study time
Select ALL the sets that are the three side lengths of right triangles.
Answer: It would be C and D
Step-by-step explanation:
By the phythagorean theorem, the 2 legs would equal to the hypothesize.
Choice A would not form a triangle.
Choice B does not follow the pythagorean theorem. 84 plus 16 does not equal 100.
Choice C does. 8 + 121 = 129.
Choice D does. 1 + 3 = 4.
Help QUICKKKKK please
Answer:
Step-by-step explanation:
Remark
The exposed perimeter of the triangle is just the two smaller legs of the right triangle (6 + 8) + 10 units at the bottom of the rectangle + two 1/2 circles.
The area of the figure is the area of the triangle at the top + the area of the two 1/2 circles + the rectangle in the middle.
Givens
Shortest Triangle Leg = 6Middle Triangle Leg = 8Diameter of the 2 half circlespi = 3.14width of the rectangle in the middle = 8Length of the rectangle = 10d = 8r = d/2 = 8/2 = 4Formula
A
Perimeter = 2 legs of the triangle + 2 half circles + bottom line
B
Area = (1/2) Leg1*leg2 + pi * r^2 + L * w
Solution
A Perimeter
Perimeter = 6 + 8 + 2*pi *r + 10
Perimeter = 24 + 2*3.14*4
Perimeter = 25.12
B Area
Area = 1/2 * 8 * 6 + 3.14*4^2 + 10* 8
Area = 24 + 50.24+ 80
Area = 150.24
Answer
P = 25.12
Area = 150.24
Roberto y Mónica tienen, entre los dos, $ 350.
La media de lo que tiene Roberto más lo de
Mónica es $ 225. ¿Qué cantidad de dinero
tiene cada uno?
Usando un sistema de ecuaciones, hay que Roberto tiene $250 y Monica tiene $100.
¿Qué es un sistema de ecuaciones?Un sistema de ecuaciones es cuando dos o más variables están relacionadas y las ecuaciones se construyen para encontrar los valores de cada variable.
En este problema, las variables són:
Variable x: Cantidad de Roberto.Variable y: Cantidad de Monica.Roberto y Mónica tienen, entre los dos, $ 350, por eso:
x + y = 350 -> y = 350 - x
La media de lo que tiene Roberto más lo de Mónica es $ 225, por eso.
0.5x + y = 225
0.5x + 350 - x = 225
0.5x = 125
x = 250
y = 350 - x = 100
Roberto tiene $250 y Monica tiene $100.
Puede-se aprender más a cerca de sistemas de ecuaciones en https://brainly.com/question/24646137
#SPJ1
13. The University of Oregon's football team has many different
uniforms. The coach can choose from four colors of jerseys and
pants: green, yellow, white, and black. There are three helmet
options: green, white, and yellow. Also, there are the same four
colors of socks and two colors of shoes, black and yellow.
a. How many jersey/pant combinations are there?
b. If the coach picks a jersey/pant combination at random, what is
the probability he will pick a yellow jersey with green pants?
c. Use a tree diagram to find all of the possible shoe and sock
combinations.
The dataset of the University of Oregon's football team is an illustration of combination and probability
The number of jersey/pant combinationThe given parameters are:
Jersey = 4
Pants = 4
So, the number of jersey/pant combination is:
Combination = 4 * 4
Combination = 16
Hence, there are 16 combinations of jersey/pant
The probability of picking a yellow jersey and green pantThere is only one combination of yellow jersey and green pant from the total of 16 combinations.
So, the probability is:
P = 1/16
Hence, the probability of picking a yellow jersey and green pant is 1/16
The tree diagramSee attachment
From the attachment, we have a total of 8 possible combination of shoe and sock
Read more about probability at:
https://brainly.com/question/251701
#SPJ1
Nhich net force is larger? 1M/S,20 KG or 10 M/S, 1 KG
Answer:
39
Step-by-step explanation:
not right just need points
help how do i answer this ??
Find the value of x.
135⁰
(7x+2)
x = [?]°
you perform 7 sit-ups for every 2 pull- ups as part of an exercise routine. you perform 25 more sit-ups than pull-ups.How many sit-ups and how many pull-ups do you perform
Which represents the solution(s) of the graphed system of equations, y = x2 x – 2 and y = 2x – 2? (–2, 0) and (0, 1) (0, –2) and (1, 0) (–2, 0) and (1, 0) (0, –2) and (0, 1)
The solution to the system of equation are (0, -2) and (1, 0)
Solution to system of equationsSystem of equations are equations that has unknown and more than 1 equations.
Given the system of equations
y = x^2 + x – 2
y = 2x – 2
Equate both expressions
x^2 + x -2 = 2x - 2
x^2 - x = 0
x(x-1) = 0
x = 0 and x - 1 = 0
x = 0 and 1
If x = 0
y = 0 - 2 = -2
If x = 1
y = 2 - 2 = 0
Hence the solution to the system of equation are (0, -2) and (1, 0)
Learn more on system of equation here: https://brainly.com/question/13729904
#SPJ4
3) How many cubic feet of water can the
following in-ground swimming pool hold?
Answer:
42
Step-by-step
you have to add all hopes this helps
PLEASEEEEEEEE HELPPPPPPPPPPPPP
Answer
My guess is 270
Step-by-step explanation:
The total number of degrees in a circle is 360. We already know the measure of arc AC is 90. All we have to do is to subtract 90 from 260 to get the answer of 270. (This is what I think)
A rectangular garden has vertices at (4, 3), (6, 3), (6, 9), and (4, 9). Plot each vertex of the garden.
Answer:
Step-by-step explanation:
A rectangular garden has vertices at
(x = 4, y = 3), (x = 6, y = 3), (x = 6, y = 9), and (x = 4, y = 9).
To plot each vertex of the garden find on the graph the x and y coordinate of the point and mark the point.
Solve the following equation for x.
x2−47=17
List your answers separated by a comma, not using a ± sign and do not include x= in your answer.
Question 2 options:
3, 5
-9, 9
-8, 8
-30, 0
Answer:
-8, 8
Step-by-step explanation:
[tex] {x}^{2} - 47 = 17 \\ \\ {x}^{2} = 17 + 47 \\ \\ {x}^{2} = 64 \\ \\ x = \pm\sqrt{64} \\ \\ x = \pm \: 8 \\ \\ x = - 8, \: \: 8[/tex]
2. Can vertical angles also be adjacent angles? Explain.
Adjacent angles are also vertical angles.
McGrawHill
Tye has a square piece of yellow felt that has an area of 81 square inches. She wants to cut the largest circle possible from the material to
create a sun for her art project. What is the area of the felt circle? Use 3.14 for 1. Round to the nearest hundredth if necessary.
Answer:
Just Try to watch math anticsStep-by-step explanation:
Thank uDoes anybody know this? I have a lot do before tommorow and I don't have much time. Look at the pictures
Answer:
Answer = 9/5
Step-by-step explanation:
2 yards = 72 inches (one yard equals 36 inches) Simplify 72/40 in and you get 9/5.
Hope that helps!
Answer:
9/5
Step-by-step explanation:
2 yard = 6 feet
40 inches = 3 4/12 feet
_____________________
Reduce 3 4/12 to 10/3 by simplification, convert 6 to a fraction
6/1 ÷ 10/3
Flip the 10/3 to multiply
6 × 3
1 × 10
= 18/10
Simplify 18/10 by dividing by 2
18 ÷ 2
10 ÷ 2
= 9/5
