Answer:
(1, -1)
Step-by-step explanation:
Given the expression
x+y = 0 .....1
y = x²+2xy ....2
From equation 1, x = -y
Substitute into 3
y = x²+2xy
y = (-y)²+2(-y)y
y = y²-2y²
y = -y²
1 = -y
y = -1
Since x = -y
x = -(-1)
x = 1
Hence the required solution is (1, -1)
please help with this question?!
Answer:
120 yd²
Step-by-step explanation:
The solid has 5 faces.
Bottom: rectangle 6 yd by 3 yd
Left: rectangle 8 yd by 3 yd
Right: rectangle 10 yd by 3 yd
Front & Back: 2 triangles 6 yd base and 8 yd height
area = 6 * 3 + 8 * 3 + 10 * 3 + 6 * 8
area = 72 + 48
area = 120
Answer: 120 yd²
Which two lines are parallel? (Reading the lines from left to right, identify them as left, middle, or right) What is the slope for the parallel lines? Coordinates: Left (-3,1), (0,3); Middle (-5,-3), (1,1); Right (-1,-3), (3,0) The 1) and 2) lines are parallel. 3) The slope is .
Answer:
The 1) and 2) lines are parallel.
Step-by-step explanation:
4. Ann bought four pens and three exercise books for a total of sh 17 while peter bought five
similar pens and two exercise books for a total of sh.16 find the cost of a pen and an exercise
book.
Answer:
pen = 2 book = 3
Step-by-step explanation:
p= pens
b=books
4p +3b =17
5p+2b=16
Multiply the first by 5
Multiply the second by -4
Add both (p variable will ce cancelled)
20p +15b = 85
-20p -8b = -64
7b = 21
b=3 (book =3)
Lets plug this in one of the equations
4p + 3x3 = 17
4p +9 0 19
4p = 8
p= 2 (pencil = 2)
Need help with this question as well thank you ppl
Answer:
42 .. isn't that the answer to everything? :P
Step-by-step explanation:
A painter needs to buy a ladder in order to paint a wall that is 18 feet high. In order to ensure the ladder does not fall it needs to be placed 3 feet away from the wall. What size ladder does the painter need to buy to ensure that he will be able to paint the highest point of the wall? Write your answer rounded to the ncarest tenth.
Answer:
222! thats your answer!
Step-by-step explanation:
Find the volume of the sphere.
Either enter an exact answer in terms of a or use 3.14 for
a and round your final answer to the nearest hundredth.
With the radius of 4.
Answer:
268.08
Step-by-step explanation:
V = [tex]\frac{4}{3}[/tex] π r³
Batteries cost $3.65 / pack. How many packs did Mark buy if he spent $36.50?
Answer: 10 packs
Step-by-step explanation:
36.50/3.65=10
Write an expression for 213 increased by d.
Write an expression for 213 increased by d: [tex]213+d=x[/tex]
James needs to fill in three blanks with letters. Find the number of ways he can fill them in if:
a. the letters can be repeated
b. the letters cannot be repeated
Answer:
A. The letters can be repeated
Step-by-step explanation:
Hope it helps
#CarryOnLearning
Solve the equation for Y
Answer:
y = 2
Step-by-step explanation:
-2y + 1 = y-5
-2 - y = -5 - 1
-3y = -6
y = -6 ÷ -3
y = 2
5x - y = -7
X + y = -5
Answer:
x = -2
y = -3
Step-by-step explanation:
5x - y = -7
x + y = -5
6x = -12
x = -2
x + y = -5
-2 + y = -5
y = -5 + 2
y = -3
Answer:
(-2,-3)
Step-by-step explanation:
x + y = -5
y = -x - 5
5x - (-x - 5) = -7
5x + x + 5 = -7
6x = -12
x = -2
x + y = -5
-2 + y = -5
y = -3
please help me ive gotten 2 wrong pelase help me please
CAN SOMEONE HELP ME PLS ASAP
BELOW IS THE PROBLEM
9514 1404 393
Answer:
5.3
Step-by-step explanation:
The Pythagorean theorem applies. The square of the hypotenuse is equal to the sum of the squares of the other two sides.
8² = x² + 6²
64 = x² +36
28 = x²
√28 = x ≈ 5.3
The missing measure is 5.3.
_____
Comment on the question
The triangle isn't marked, but we must assume it is a right triangle. If it is not a right triangle, we cannot find the missing measure.
Answer:
5.3 is the answer.Step-by-step explanation:
#CarryOnLearningThe equation for the speed/distance
of a tornado is s = 93 log(d) + 65.
If the speed is 190 mph, what is the distance?
Step-by-step explanation:
S = 93 log (d) + 65; S = wind speed; d = distance traveled by tornado
A) tornado travels 130 miles = d; find S
S = 93 log10(130) + 65
S = 261.6 mph rounds up to 262 mph
Answer:
22 milesStep-by-step explanation:
s = 93 log(d) + 65 and s = 19093 log(d) + 65 = 19093 log(d) = 125log (d) = 125/93log (d) = 1.344 (rounded)d = 10^1.344d = 22 miles (rounded)please help ASAP! i need this done!
Answer:
∠2 (∴ ∠3 is also correct)∠1∠1 (∴ ∠4 is also correct)Step-by-step explanation:
1) Both the angles ∠2 & ∠3 form a linear pair with ∠1. Also, angles of a linear pair are supplementary to each other. So, both ∠2 & ∠3 are supplementary to ∠1. (Write any one)
2) ∠1 is located vertically opposite to ∠4. So, ∠1 & ∠4 are vertical angles.
3) Both the angles ∠1 & ∠4 share a common vertex & common side with ∠3. So, both ∠1 & ∠4 are adjacent to ∠3. (Write any one)
Find all real zeros of the function y=-7x+ 3.
a -7,3
b. 3
c. -7
d 3
ا م اہے
7
7
Please select the best answer from the choices provided
Ο Α
B
С
OD
Answer:
I Believe it's D
Step-by-step explanation:
A. 71
B. 84
C. 29
D. 67
Step-by-step explanation:
angle on a straight line is 180, thus , the angle on the line inside the triangle is
180 - 96 = 84
and since the sum of the angles in a triangle is 180 ,
the angle 1 is ..
180 - 29 - 84 = 67 degrees ,
therefore the answer is D
hope this helps
The number of students treated per month has been recorded for the last 60 months. Which between 100 and 200 students were treated
Answer:
Step-by-step explanation:
Here is the complete question
The number of students treated per month has been recorded for the last 60 months. Which type of graph would allow us to quickly see how many months between 100 and 200 students were treated
A) box plot
B)dot plot
C)historgram
An histogram is a bar-like graph used to represent numerical data. On the x-axis the range of data being described is given and on the y-axis, the frequency is provided.
The x-axis would show the range of 100 - 200 that were treated
a box plot displays numerical data using their quartiles
A dot plot is display of data using dots
Find the volume of the composite solid.
Here's the solution,
the volume of the given figure is :
=》
[tex]volume \: \: of \: \: (pyramid \: + rectangular \: \: prism)[/tex]
volume of pyramid :
=》
[tex] \dfrac{l \times b \times h}{3} [/tex]
=》
[tex] \dfrac{4 \times 5 \times 6}{3} [/tex]
=》
[tex] \dfrac{120}{3} [/tex]
=》
[tex]40[/tex]
volume of pyramid = 40 cm³
now, volume of rectangular prism :
=》
[tex]l \times b \times h[/tex]
=》
[tex]4 \times 5 \times 2[/tex]
=》
[tex]40[/tex]
volume of rectangular prism = 40 cm³
volume of composite figure = 40 + 40
=》80 cm³
The volume of the composite solid will be 80 cubic cm.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
Let the prism with a length of L, a width of W, and a height of H. Then the volume of the prism is given as
V = L x W x H
The volume of the Pyramid will be given as,
V = (1/3) × Base area × height
Then the volume of the geometry will be
V = L x W x H + (1/3) x Base area x height
V = 5 x 4 x 2 + (1/3) x 4 x 5 x 6
V = 40 + 40
V = 80 cubic cm
Thus, the volume of the composite solid will be 80 cubic cm.
More about the geometry link is given below.
https://brainly.com/question/7558603
#SPJ2
PLEASE HELP! I AM BEHIND ON SCHOOL WORK AND I NEED THIS! PLEASE SHOW WORK!
REPOST!!!!!!! 15 POINTS!!!!!!!
4. if m<AOB = 45° in circle O, what is m<ABC yeah, and I need help with
Answer:
m<ACB=1/2 of m<AOB
so m<ACB=45⁰÷2
m<ACB=22.5⁰
I HOPE IT HELPS HAVE NICE DAY!
Answer:
m<ACB=22.5° [as inscribed angle is half to the central angle]
Solve For x Help pleaassee
Answer:
x=4
Step-by-step explanation:
C+E=180
14x-8+132=180
14x=180-132+8
14x=56
x=4
Answer:
10°
Step-by-step explanation:
132° = (14x - 8)°
140° = 14x
× = 10°
Help please will give brainiest
Write the equation of the line in Slope-Intercept Form.
(0,4) (3,2)
Answer:
y = -3/2x+ 4
Step-by-step explanation:
–6x − 8y = –14
y = –2
Answer:
x = 5
Step-by-step explanation:
If you input the y-value into the equation you get x = 5.
-6x-8(-2) = -14
-6x+16 = -14
-6x+16-16 = -14-16
-6x = -30
(-6x)/-6 = (-30)/-6
x = 5
Choose the correct value for x.
multiple choice.
An envelope is 6 inches wide, and it measures 9 inches along the diagonal. How tall is the envelope? If necessary, round to the nearest tenth.
Answer:
Wouldn't it be 6×9=54 ?
Step-by-step explanation:
Because you would do L×W ? I think.. if that's wrong I am super duper sorry!!
Answer:
Aprox: 6.7
Step-by-step explanation:
Polygatheroem method.
[tex]a^{2} + b^2 = c^2\\a^2 + 6^2=9^2[/tex]
a=6.7
The sum of a number and 2.
Answer:
whats the question
Step-by-step explanation:
Please help as soon as someone can, I need help on these questions.
Answer:
BELOW ↓Step-by-step explanation:
1.Given Information :
Distance (d) = 1/4 miles
Time (t) = 36 seconds
Speed = ?
[tex]Speed = \frac{Distance (d)}{Time (t)}\\\\Speed= \frac{\frac{1}{4} mile }{36 seconds} \\\\Speed =\frac{1}{44}m/hr[/tex]
2.The unit rates are equal
x=5 so what is (x+3)² =
(3+x)²
(5+3)²=
8²=
64
.
.
.
.
Answer:
64
Step-by-step explanation:
Since x=5
(5+3)^2
(8)^2= 64