Answer:
the formula used gives surface area instead of volume
-10x+10y=-10 10x-10y=10
Answer:
X=-Y
Step-by-step explanation:
...........................
What is the volume of the following image?
A rectangle has a length that is twice the width. The width is to be extended by 5 ft and the length by 3 ft, so the total area becomes 99 square feet. What was the original length?
Answer Choices:
4 ft
6 ft
8 ft
10 ft
12 ft
14 ft
16 ft
Answer:
8 feet
Step-by-step explanation:
w = width
2s = length
Find 'w' by multiplying the new dimensions:
(w+5)(2w+3) = 2w² + 3w + 10w + 15 = 99
simplify:
2w² + 13w - 84 = 0
Factor:
(2w + 21)(w - 4) = 0
w = -21/2 ** disregard because a measurement cannot be negative **
w = 4
original width was 4
orginal length was twice 4 or 8 feet
What is the perimeter of the triangle?
Answer:
32units
Step-by-step explanation:
by the what I'm seeing the bottom side is 16 and the 2 other sides are 8 respectively. so all you have to do is just add 16,8 and 8 again which will give you 32.
Answer:
32
Step-by-step explanation:
a + b + c = d
a=8 b=16 c=8
8+16+8=32
Convert to an improper fraction: 4 3/5
Answer:
23/5
Step-by-step explanation:
multiply denominator by whole number. add the numberator. sum will now be your new numberator (denominator always stays the same).
hope this helps! (❁´◡`❁)
Solve the quadratic formula for (5x+3)(5x-3)=19X
Must show all workings
The value of x for the given quadratic equation is (19+[tex]\sqrt{1261}[/tex])/50,
(19-[tex]\sqrt{1261}[/tex])/50.
What is a quadratic equation?It is in the form of a[tex]x^{2} +bx+c[/tex]. It is simply an equation and we have to solve for x.
How to solve a quadratic equation?If we solve the given equation we will be able to get the following equation
[tex]25x^{2} -19x-9=0[/tex]
x=(-b+-[tex]\sqrt{b^{2}-4ac }[/tex])/2a
when we put b=19 a =25 c =-9
we will get x=[tex](19+\sqrt{1261} )/50 , (19-\sqrt{1261} )/50[/tex].
Learn more about quadratic equations at https://brainly.com/question/1214333
#SPJ2
I will give brainliest. write the least squares regression equation that models the data. Round your values to the nearest hundredth.
Use substitution to solve the system of equations.
How many solutions are there?
1/2x -1/3y= 5
x= 2/3y + 10
Α. There are no solutions
В. There is one solution.
C. There are infinitely many solutions.
D. It is not possible to determine the number of solutions
Answer:
A
Step-by-step explanation:
1/2(2/3y) - 1/3y = 5
1/3y - 1/3y = 5
0 ≠ 5
No Solutions
These are linear equations and, when graphed, are parallel
3.6 ÷ 0.08 + 5.2 • 2.5
Answer: 58
Step-by-step explanation:
Answer: the answer is 58
you could've used calculator lol.
hope it's right.
Step-by-step explanation:
If (X+2,4) and (5,y-1 are equal ordered pairs ,Find the value of X and y
Answer:
x = 3, y = 5
Step-by-step explanation:
Since the ordered pairs are equal, then equate the x and y coordinates
x + 2 = 5 ( subtract 2 from both sides )
x = 3
y - 1 = 4 ( add 1 to both sides )
y = 5
Kevyn has a bag of jolly ranchers. Kevyn gave 3/8 of the bag to Alex and 1/4 of the bag to Marisa. Kevyn also gave 1/2 of the remaining candy to his favorite teacher Mr. Lee. How much of the total candy bag did Kevyn give to Mr. Lee.
Answer: 3/16
Step-by-step explanation: after giving it to Alex and Marisa there is only 3/8 left. Half of 3/8 is 1.5/8 or 3/16
In a class of 45 students, 25 play
hockey and the remainder play
football
a. What fraction of the class
play football?
d. ir of the students who play
football also play tennis, what
fraction of the class also plays
tennis?
Answer:
a. I think is twenty
d. ??????????
A pottery shop uses 493 pounds of clay each week. About
how many pounds of clay will the shop use in 36 weeks?
a pottery shop uses 493 pounds of clay each week. about
how many pounds of clay will the shop use in 36 weeks?
493*36= 17,748 pounds of clay
The surface area of the cylinder
Find the measure of one interior angle of a 15-gon. (1 point for work, 1 point for correct answer
Answer:
[tex](180 - 15) = 165[/tex]
What is the approximate distance from the origin to the point (−5, 6, −1)? Round to the nearest tenth.
o3.2 units
o3.5 units
o7.7 units
o7.9 units
Answer:the answer is o.7.7
Step-by-step explanation:
Which side lengths form a right triangle? Choose all that apply. 5, the square root of 8, 33 or 8,15,17 or the square root of 2, the square root of 2, 2
Answer:
17² = 15² + 8²
2² = (√2)² + (√2)²
Step-by-step explanation:
A triangle is a polygon with three sides and three angles. There are different types of triangles such as right angled, acute, obtuse and isosceles triangle.
In right angle triangle, one angle is 90°. From Pythagoras theorem, the square of the longest side (hypotenuse) is equal to the sum of the square of the two sides. Hence:
33² ≠ (√8)² + 5² (not right triangle)
17² = 15² + 8² (right triangle)
2² = (√2)² + (√2)² (right triangle)
plz help right now illl give brainlist 5.0 and say thanks
Answer: 4+4+1
Step-by-step explanation: 4+4+1=4+5
Hope this helps!
A car dealership has $3,570 to spend on newspaper ads. If each ad costs $70, how many ads can the dealership buy?
Answer:
51
Step-by-step explanation:
A parking space shaped like a parallelogram has a base of 19 feet and a height is 9 feet. A car parked in the space is 14 feet long and 6 feet wide. How much of the parking space is not covered by the car? The area of the parking space not covered by the car is
Answer:
87 feet^2
Step-by-step explanation:
area of the parking space not covered by the car = area of parking space - area covered by the car
area of parking space = area of a parallelogram = base x height = 19 x 9 = 171 feet²
Area of car = area of a rectangle = length x width 14 x 6 = 84 feet²
area of the parking space not covered by the car = 171 feet² - 84 feet² = 87 feet^2
Find the circumference and the area of a circle with diameter 8 yd.
Use the value 3.14 for n, and do not round your answers. Be sure to include the correct units in your answers.
Answer:
Circumference: 25.12
Area: 50.24
Step-by-step explanation:
Circumference: 3.14*8
Area: 1/4*3.14*8*8
A single, standard number cube is tossed. What is the probability of getting a number other than 6?
A. 1
B. start fraction 1 over 3 end fraction
C. start fraction 5 over 6 end fraction
D. start fraction 1 over 6 end fraction
Answer:
c. start fraction 5 over 6 end fraction
Step-by-step explanation:
there are six numbers on a cube
1, 2, 3, 4, 5, 6
there are 5 other numbers other than 6
5/6
5 = other than 6
6 = total numbers
Why is it important to know how to use area or volume in real life?
Which expression is equivalent to csc x – sin x?
a.
cos^2x/sinx
c.
sin x – cos x
b.
sin x + cos x
d.
cos^2x + sin^2x
Answer:
a edge 2021
Step-by-step explanation:
im b o r e d so
what yall doing
Step-by-step explanation:
Nm :/
Bored too
what r u doing?
Answer:
hi
Step-by-step explanation:
pppppppppppppp
Which graph fits this line? y = 2x + 1
Answer:
Calculating two points and drawing the line between the two.
Explanation:
To find the y-intercept, put x = 0
y = 2 (0) - 1
y = -1
To find the x-intercept, put y = 0
2x - 1 = 0
2x = 1
x = 1/2
Draw your system of axis. Mark -1 on the y-axis, and 1/2 on the x-axis.
Now draw a line through these two ponts. Add arrows.
==============================================
To draw the graph by using points,
let x = -1, then y = 2 (-1) - 1 = -2 - 1 = -3
first point is (-1; -3)
Let x = 0, y = 2 (0) - 1 = -1
Second point is (0; -1)
Let x = 1, y = 2(1) - 1 = 1
Third point is (1; 1)
Plot the three points and draw a line through them. Add arrows to your line.
A homeowner wants to determine how much paint is needed to paint the walls of his living room.
Choose the two variables the homeowner should most consider when deciding how much paint is necessary.
A.
the cost of one gallon of paint
B. the number of rooms in the house
c. the number of walls in the living room
D. the area of the walls in the living room
E. the area that one gallon of paint will cover
Answer:A
Step-by-step explanation:becouse it makes sen e
Answer:
c & d
Step-by-step explanation:
Two equations are given. m + 5n = 20
m = n-4
What is the solution to the set of equations in the form (m, n)?
A (3,7)
B (0,4)
C (5, 1)
D (2,6)
Please help
Answer:
B. (0, 4)
Step-by-step explanation:
so we need to find the value of m and n, and luckily we have 2 equations that'll help. (I'm going to use the substitution method for this instead of the Elimination method because I am lazy)
first we need to solve for m, but we already have an equation that tells us what m is equal to, m = n - 4.
now we just need to plug in our new m into the other equation and solve for n. (we are using m + 5n = 20 for that)
so now we get
(n - 4) + 5n = 20
so we solve for n
n + 5n = 24
6n = 24
n = 4
now that we know that n is 4, we can plug that into our m equation (m = n - 4)
m = 4 - 4
m = 0
now we have our m and n, and we can make our ordered pair.
(m, n)
(0, 4)
The streptococci bacteria population N at time t (in months) is given by N = N0e 2t where N0 is the initial population. If the initial population was 100, how long does it take for the population to reach one million?
solve for the value of k
Answer:
k = 42
Step-by-step explanation:
This is a complementary angle, meaning that the angles formed equal 90 degrees. We know it is complementary because the angle is shown was a tiny square, a sign that it is 90 degrees. Thus, the two angles (k+1) and 47 added together must equal 90. So, we can write an equation:
(k+1) + 47 = 90
k + 1 = 43
k = 42.