Answer:
C. 8:55
Step-by-step explanation:
Simplify 2/5 (40x – 75)
which one ?? help plsss
100x - 187.5
80x/5 - 150/5
80x - 150
16x-30
Answer:
16x-30
Step-by-step explanation:
distribute 2/5 by 40x and then 75
2/5(40x) - 2/5(75)
16x - 30
Why does the equation 5(3x-4)-6x=3(3x-4) have no solutions?
Bureause when you subtract from both sides of the equation and simplify you get 20-20
Berise when you add to both sides of the equation and simplify you get = -12
Because when you add to both sides of the equation and simplify you get 2020
Because when you add-to both sides of the equation and simple you get 20-12
A high school soccer team is going to Columbus to see a professional soccer game. A coordinate grid is superimposed on a highway map of Ohio. The high school is at point (3, 4) and the stadium in Columbus is at point (7, 1). The map shows a highway rest stop halfway between the cities. What are the coordinates of the rest stop? What is the approximate distance between the high school and the stadium? (One unit = 6.4 miles.)
Answer:
a) The coordinates of the rest stop is [tex]C(x,y) = \left(5, \frac{5}{2} \right)[/tex].
b) The approximate distance between the high school and the stadium is 32 miles.
Step-by-step explanation:
a) The rest stop is located in the midpoint of the line segment between the high school and the stadium. Vectorially speaking, we use the following formula:
[tex]C(x,y) = \frac{1}{2}\cdot A(x,y) + \frac{1}{2}\cdot B(x,y)[/tex] (1)
Where:
[tex]A(x,y)[/tex] - Coordinates of the high school.
[tex]B(x,y)[/tex] - Coordinates of the stadium.
[tex]C(x,y)[/tex] - Coordinates of the rest stop.
If we know that [tex]A(x,y) = (3, 4)[/tex] and [tex]B(x,y) = (7,1)[/tex], then the coordinates of the rest stop are, respectively:
[tex]C(x,y) = \frac{1}{2}\cdot (3, 4) + \frac{1}{2}\cdot (7, 1)[/tex]
[tex]C(x,y) = \left(\frac{3}{2}, 2 \right) + \left(\frac{7}{2}, \frac{1}{2} \right)[/tex]
[tex]C(x,y) = \left(5, \frac{5}{2} \right)[/tex]
The coordinates of the rest stop is [tex]C(x,y) = \left(5, \frac{5}{2} \right)[/tex].
b) The approximate distance between the high school and the stadium ([tex]d[/tex]), in miles, is the product of the Length Equation of the Line Segment and the scale factor:
[tex]d = r\cdot \sqrt{(\Delta x)^{2} + (\Delta y)^{2}}[/tex] (2)
Where:
[tex]r[/tex] - Scale factor, in miles.
[tex]\Delta x[/tex], [tex]\Delta y[/tex] - Horizontal and vertical distances between the high school and the stadium, no unit.
If we know that [tex]r = 6.4\,mi[/tex], [tex]\Delta x = 4[/tex] and [tex]\Delta y = -3[/tex], then the distance between the high school and the stadium is:
[tex]d = r\cdot \sqrt{(\Delta x)^{2} + (\Delta y)^{2}}[/tex]
[tex]d = (6.4\,mi)\cdot \sqrt{4^{2}+(-3)^{2}}[/tex]
[tex]d = 32\,mi[/tex]
The approximate distance between the high school and the stadium is 32 miles.
Jake's investment account is compounded continuously at a rate of 8% per year. After 3 years, his account has a balance of $10,000. Which function could be used to model the value, A(t), of Jake's account t years since it was opened?
Answer:
10,000 × .08 = 800.
Step-by-step explanation:
2400 interest in 3 yrs
7x + 6y = -1 ; -x + 2y = 3 with elimination
Answer:
x= -1, y=1
Step-by-step explanation:
First label the 2 equations.
7x +6y= -1 -----(1)
-x +2y= 3 -----(2)
Then choose which term you would like to eliminate. To eliminate the y term, multiply equation (2) by 3 such that the coefficient of y is 6.
(2) ×3:
-3x +6y= 9 -----(3)
Since the coefficient of y is positive 6 in both equations, subtract one equation from the other.
(3) -(1):
-3x +6y -(7x +6y)= 9 -(-1)
Expand:
-3x +6y -7x -6y= 9 +1
-10x= 10
x= 10 ÷(-10)
x= -1
Substitute x= -1 into (2):
-(-1) +2y= 3
1 +2y= 3
2y= 3 -1
2y= 2
y= 2 ÷2
y= 1
------------------------------------------------------------
2nd method: eliminating the x term
(2) ×7:
-7x +14y= 21 -----(3)
Since the coefficient of y in equation (1) is a positive 7, while that in equation (3) is a negative 7, add the 2 equations together to eliminate the x term.
(1) +(3):
7x +6y -7x +14y= -1 +21
20y= 20
y= 20 ÷20
y= 1
Substitute y= 1 into (2):
-x +2(1)= 3
-x +2= 3
-x= 3 -2
-x= 1
x= -1
Help me on this question please!!
Answer:
lol get a life
Step-by-step explanation:
Please help me with part C
Answer:
20%
Step-by-step explanation:
what percentage would this be?
Answer:
50%
Step-by-step explanation:
Please help. ill give extra points for free if answered.
Answer: B
Step-by-step explanation:
Answer:
the person is correct b
Step-by-step explanation:
Please help me find volume for this pyramid I'm having trouble.
Answer:
A. 850 cubic feet
Step-by-step explanation:
Have a good day :)
factor each polynomial
ok so
leave y^2 alone
so you need to get 2 factors that when added equal 11 so 9x2=18
and 9+2=11
so it would be (y+9)(y+2)
hope this helps
Answer:
Step-by-step explanation:
(x + 9 ) ( x + 2 )
I am a two digit number divisible my 19 the sum of my digits is 14
Answer:
95
Step-by-step explanation:
9+5=14
95÷19=5
this is the answer (I'm just typing so brainly let's me post)
please help i’ll give brainliest!!! thanks
Choose the law and the formula that would be used to solve the triangle.
Answer: A^2
Step-by-step explanation:
Angle C + Angle B = Angle A
:Renita's Bike Ride
Renita is riding her bike to school. It takes her 5 minutes to
travel half of a mile.
Answer:
Okay well if you need to find mph she is going 10 mph
Step-by-step explanation:
1/2+1/2= 1 mile in 10 min, multiply both sides by 6 and you get 1 mile = 60min
What’s the answer in factor 5x + 5 =
pls helpppp lol :/ I’d really appreciate it !!
Step-by-step explanation:
60+5x+5=180 (being angle of straight line)
5x+65=180
5x=180-65
5x=115
x=23
Please Help ASAP
Jorge has a swimming pool that is rectangular in shape. The length and width of the pool are 24 feet and 14 feet. He also knows that the pool has a consistent depth of 5 feet. He needs to add 4 drops of chlorine for every 50 cubic feet in his pool. How many drops of chlorine should Jorge use to chlorinate his pool properly?
Answer:
140 drops
Step-by-step explanation:
Length of the pool = 24 feet
Width of the pool = 14 feet
Depth of the pool = 5 feet
Volume of the pool = length × width × depth
= 24 ft * 14 ft * 5 ft
= 1,750 ft³
Volume of the pool = 1,750 ft³
He needs to add 4 drops of chlorine for every 50 cubic feet in his pool.
Number of 50 cubic feet in the volume of the pool = Volume of the pool / 50 ft³
= 1,750 ft³ / 50 ft³
= 35
Number of 50 cubic feet in the volume of the pool = 35
How many drops of chlorine should Jorge use to chlorinate his pool properly?
Number of drops of chlorine Jorge should use = number of drops per 50 ft³ × Number of 50 cubic feet in the volume of the pool
= 4 × 35
= 140 drops
Number of drops of chlorine Jorge should use = 140 drops
What is the value of x. Please help out. This is due today!
Answer:
70°
Step-by-step explanation:
In the context it says that Franklin St. is parallel to Washington St.
The 110° formed by Franklin St. and Mulberry St. is a supplementary angle to Angle x.
Supplementary angles are angles that add up to each other to make 180°
So lets subtract:
180 - 110 = 70°
Angle x = 70°
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
PLEASE HELP ME I'M SO CONFUSED!!!!
Answer: C is the answer for first picture
F is the answer for second picture
C is the answer for number one on 3rd picture
F is the answer for number 2 on 3rd picture
Step-by-step explanation:
Answer:
look below
Step-by-step explanation:
for the first picture, the answer to the first problem is C
for the first picture, the answer to the second problem is G
for the second picture, the answer is F
for the third picture, the answer to the first problem is C
for the third picture, the answer to the second problem is G
have a nice day!
In triangle ABC, if angle A measures 78° and angle B measures 63º, what is the measure of angle C?
Answer:
∠C=39°
Step-by-step explanation:
The interior angles of a triangle will always have a sum of 180°.
∠A+∠B+∠C=180°
78°+63°+∠C=180°
∠C=180°-78°-63°
∠C=39°
Answer:
39 degrees
Step-by-step explanation:
All triangles will add up to 180 degrees. So, you know that angle C added with angles A and B will equal 180. if you take 180, minus 78, minus 63, you get the answer 39.
What is the area of the triangle shown below?
...................
..........
Which expression is equivalent to 3^-1⋅3^0?
A) 1/3
B) 1/9
C) 9
D) 3
Which equation gives the rule for this table?
Answer:
C. y = x + 2
Step-by-step explanation:
2 is being added onto both sides
Three-dimensional objects are measured by their length, width and what
Answer:
height
Step-by-step explanation:
you can just look these questions up
Write the equation in standard form for the circle with radius 6 centered at the origin.
Answer:
So, if the center is (0,0) and the radius is 6, an equation of the circle is: (x-0)2 + (y-0)2 = 62.
Step-by-step explanation:
please mark this answer as brainliest
The equation in standard form for the circle with radius 6 centered at the origin will be x² + y² = 36.
What is the equation of a circle?It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.
Let r be the radius of the circle and the location of the center of the circle be (h, k).
Then the equation of the circle is given as,
(x - h)² + (y - k)² = r²
The radius of the circle is 6 units and has a center at the origin. Then the equation is given as,
(x - 0)² + (y - 0)² = 6²
x² + y² = 36
The equation in standard form for the circle with radius 6 centered at the origin will be x² + y² = 36.
More about the equation of the circle link is given below.
https://brainly.com/question/10618691
#SPJ2
-3(8n+10)
distributive property
3 • 12 ÷ 2 • 3 ÷ 3
6
2
18
54
Answer:
18.
Step-by-step explanation:
3*12 = 36
36/2 = 18
18*3 = 54
54/3 = 18
Answer:
18
Step-by-step explanation:
3 x 12 is 36,
36 divided by 2 is 18,
18 x 3 is 54,
54 divided by 3 is 18
Find the volume of a pyramid with a square base, where the area of the base is 6.8m^2
and the height of the pyramid is 8.6. Round your answer to the nearest tenth of a cubic meter.
Answer:
[tex]19.5\:\mathrm{m^3}[/tex]
Step-by-step explanation:
The volume of a square pyramid is given by [tex]V=\frac{1}{3}\cdot s^2\cdot h[/tex], where [tex]s[/tex] is the base edge and [tex]h[/tex] is the height. Since the base area ([tex]s^2[/tex]) is already given to us, we can substitute directly in to our equation.
Solving for [tex]V[/tex]:
[tex]V=\frac{1}{3}\cdot 6.8\cdot 8.6\approx \boxed{19.5\:\mathrm{m^3}}[/tex]
The answer on deltamath is
19.5m^3
HELPPPPPP how do you find the height of a right triangle
Answer:
The height of any right triangle is just simply the many units that are going up but it has to start from the right angle and upwards and that would be your height.
It may already give you a height so there is no need to worry if so.
Here, in this case the side on the very left is my height:
Answer:
Use Pythagorean Theorem
Step-by-step explanation:
a²+b²=c²
You need to find the height, which means you have a and c. You square a and c, subtract a from c, then find the square root of that difference. Now you have b.
EXAMPLE:
a=3, c=6
3²+b²=6²
9+b²=36
-9 -9
b²=27
sqrt of 27 is 5.2. So the side is 5.2
---
hope it helps