Answer:
is this the one?
Step-by-step exExplanation:
Adding third equation to first one,
7
x
+
5
y
+
z
+
x
−
6
y
−
z
=
0
−
18
or
8
x
−
y
=
−
18
.
(
1
)
Adding 2 times of third one to second one,
−
x
+
3
y
+
2
z
+
2
⋅
(
x
−
6
y
−
z
)
=
16
−
2
⋅
18
or
x
−
9
y
=
−
20
(
2
)
Substracting 8 times of
(
2
)
from
(
1
)
,
8
x
−
y
−
8
⋅
(
x
−
9
y
)
=
−
18
−
8
⋅
(
−
20
)
71
y
=
142
, so
y
=
2
Hence,
x
−
9
⋅
2
=
−
20
or
x
−
18
=
−
20
, so
x
=
−
2
Thus,
7
⋅
(
−
2
)
+
5
⋅
2
+
z
=
0
or
z
−
4
=
0
, so
z
=
4Explanation:
Adding third equation to first one,
7
x
+
5
y
+
z
+
x
−
6
y
−
z
=
0
−
18
or
8
x
−
y
=
−
18
.
(
1
)
Adding 2 times of third one to second one,
−
x
+
3
y
+
2
z
+
2
⋅
(
x
−
6
y
−
z
)
=
16
−
2
⋅
18
or
x
−
9
y
=
−
20
(
2
)
Substracting 8 times of
(
2
)
from
(
1
)
,
8
x
−
y
−
8
⋅
(
x
−
9
y
)
=
−
18
−
8
⋅
(
−
20
)
71
y
=
142
, so
y
=
2
Hence,
x
−
9
⋅
2
=
−
20
or
x
−
18
=
−
20
, so
x
=
−
2
Thus,
7
⋅
(
−
2
)
+
5
⋅
2
+
z
=
0
or
z
−
4
=
0
, so
z
=
4planation:
for the equation below y=2.5^x-6
what is the y intercept of the graph
a) -6
b) -5
c) -3.5
d) 2.5
Answer:
kvh
Step-by-step explanation:
m
A student made a chart to classify plates by the types of boundaries. What
crustal feature is most likely found between the Pacific and North American
Plates? *
Plates at boundary
South American/African
Eurasian/Pacific
North American/Eurasian
Pacific/North American
Type of boundary
Divergent
Convergent
Divergent
Transform
Your answer
Answer:
trench
Step-by-step explanation:
The volume of the rectangular pyramid is ___ cubic units.
Answer:
600 cubic units.
Step-by-step explanation:
The formula for a rectangular pyramid is[tex]V=\frac{lwh}{3}[/tex] or volume is equal to length x width x height divided by 3. The length is 15, the width is 10, and the height is 12. This equals to 1800, then we divide it by three for the answer.
help!! are x and y proportional?
Find the coordinates of P.
Here is my answer. I hope this is helpful. If there is something you don't understand in my solution, you can ask me.
What is / are the coefficients in this expressions? 3a+7-8n
Answer:
3 and 8
Step-by-step explanation:
3 and 8 are the only numbers that have a variable, or the letter beside it
What is the answer for 10r x 20?
I need help with this, and I need the explanation with the answer if possible ^^
Answer:
200r
Step-by-step explanation:
All you have to do is multiply the 10 and 20 to get 200 and then put the r after the 20, so it would look like this 200r
A. 20 mph
B. 35 mph
C. 70 mph
D. 100 mph
The answer is B. 35 mph
Speed is shown as distance/time
If you pick a point, for example 70 miles and divide it by the time which is 2 hours, then you get 35 miles per hour
A car is purchased for £11 500 In its first year, the value of the car will depreciate by 15%. Each year after that, the value of the car will depreciate by 10%. What is the value of the car at the end of 3 years?
Answer:
Value of the car at the end of 3 years is £7917.75
Step-by-step explanation:
The car is purchased for £11500.
In the first year, 15% depriciation.
So, depreciation on first year =11500 *[tex]\frac{15}{100}[/tex] =1725
After first year depreciation the value of car =11500-1725 =£9775
Now, second year depreciation is 10%
So, 10% of 9775 =0.10*9775 =977.5
Value of car after 2 years = 9775 -977.5 =8797.5
Now, for third year depreciation is 10%.
So, depreciation on 3 year = 10% *8797.5
=0.10*8797.5
=879.75
So, value of car after 3 years = 8797.5 -879.75 =£7917.75
The diameter of a circle is 34 feet. What is the circle’s area?
Use 3.14 as pi
The radius of the circle is 17 feet. Then the area of the circle is 907.46 square feet.
What is the area of the 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. Then the area of the circle will be given as,
A = πr² square units
The diameter of the circle is 34 feet. Then the radius of the circle is calculated as,
r = 34 / 2
d = 17 feet
The area of the circle is calculated as,
A = πr²
A = 3.14 x 17 x 17
A = 907.46 square feet
More about the area of a circle link is given below.
https://brainly.com/question/11952845
#SPJ2
What is the equation in slope-intercept form of the line that passes through the points (-4, 2) and (12, 6)?
Answer:
Step-by-step explanation:
Please help! i really need help with this! question is below!
Step-by-step explanation:
Area of the square:
a^2: 4^2=16in^2
Area of the circle:
πr^2: π(4.5)^2= 63.6
Area of white part:
63.6 - 16 = 47.6
Probability of landing on square:
16/63.6 = 0.25
Probability of landing on white part:
63.6/16 = 3.975
Solve using Square Roots.
16x² - 34=15
Answer:
[tex]\sqrt{\frac{49}{16}[/tex]
Step-by-step explanation:
p(x)= 4x^3 -3x^2+5x-2
Answer:
p=4x^3−3x^2+5x−2/x
Step-by-step explanation:
Let's solve for p.
px=4x^3−3x^2+5x−2
Step 1: Divide both sides by x.
px/x=4x^3−3x^2+5x−2/x
p=4x^3−3x^2+5x−2/x
Answer:
p=4x^3−3x^2+5x−2/x
( I hope this was helpful) >;D
ANSWER ASAP PLEASE
look at the photo
Step-by-step explanation:
Area of trapezium = 1/2(a+b)h
= 1/2(10+24)12
= 1/2×34×12
= 204 square units
PROOF PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
Answer:
16
Step-by-step explanation:
The formula used to find the area of a triangle is
[tex] \frac{1}{2} b \times h[/tex]
so the area of the triangle is
[tex] \frac{1}{2} \times 8 \times 4[/tex]
because 8 is the base and 4 is the height of the triangle
Therefore the area of the triangle is 16
What is the median for the following set of data? 2, 3, 6, 8, 9, 10, 11 7 8 10 11
8 :)
Step-by-step explanation:
im sooo confused ???????????
Answer:
D
Step-by-step explanation:
The set for a school play needs a replica of a historic building painted on a backdrop that is 20 feet long and 16 feet high. The actual building measures 320 feet long by 256 feet high. A stage crewmember writes (x, y) arrow right ( 1/20 x, 1/20y) to represent the dilation. Is the crewmember's calculation correct if the painted replica is to cover the entire backdrop? Complete the explanation.
Answer:
Stage crewmember's calculation is incorrect
Correct = 1/16x 1/16y
Step-by-step explanation:
Given that:
Dimension of backdrop : 20 feets long ; 16 feets high
Actual dimension of building : 320 feets long ; 256 feets high
The correct scale factor can be obtained thus :
Ratio of backdrop dimension to the actual dimension of building
Length : 20 / 320 = 1 /16
Height : 16 / 256 = 1/16
Hence, stage crewmember's calculation of (1/20x ; 1/20y) is incorrect.
Show whether or not the points with coordinates (1,3) (4,2) (-2,6) are vertices of a right triangle
Answer:
No
Step-by-step explanation:
See attached
Help !!
Determine the value of y, if x is 7.
y = x2 – 5
Hurry please. Also thank you in advance
Answer:
The answer is C [tex]\sqrt{97}[/tex].
Step-by-step explanation:
Use the pythagorean theorem. [tex]a^{2} + b^{2} = c^{2}[/tex]. With a and b corresponding to the legs of the triangle.
6v =792 how I do dat
Answer:
v = 132
Step-by-step explanation:
divide 792 by 6 to get v
Answer:
v = 132
Step-by-step explanation:
Just divide the terms by 6 and then simplify.
Four less than the product of 6 and a number n is -30.
What is the number?
Answer:wait it must be 30 for the product which means the answer is 26
Step-by-step explanation:
How do I know where to put numbers on a graph
Answer:
X axis is on the left of the Coordinates (x,y) and Y axis is on te right
X goes sideways
Y goes Vertical
Step-by-step explanation:
The mean number of sick days taken by the employees of Company A is 9, with the number of days taken ranging from 0 to 16. The mean number of sick days taken by the employees of Company B is 6, with the number of days taken ranging from 2 to 9. Which BEST compares the number of sick days taken by the employees of the two companies?
Answer: C) On average, the employees of Company A take more sick days than the employees of Company B.
Step-by-step explanation: USATESTPREP
Answer:
B
Step-by-step explanation:
On average the employees of company a takes more sick days than employees of company b
Mean of company a=9 mean b=6. 9>6
What is 200×300?
A. 60,000
B. 5,000
C. 50,000
D. 6,000
Answer:
A. 60,000
Step-by-step explanation:
The answer is A because 2 × 3 is 6 then you add the 4 0's. So it would be 60,000
What is another word for making something larger in a dilation
Answer:
expand enlarge
inflate lengthen
stretch broaden
open amplify
augment develop
Step-by-step explanation:
expand enlarge
inflate lengthen
stretch broaden
open amplify
augment develop
Ben has 43 coins belonging to dimes or quarters. If he has
$8.80, how many dimes does he have?
dimes
Answer:
7 dollars and 50 cents of quarters. That right there equals 30 coins
He has a dollar and thirty cents in dimes and that equals 13 coins
Together that is $8.80. with 43 coins.
Step-by-step explanation:
Solving systems of equations by graphing. how do you do this
Answer:
Solve systems of equations by graphing
A system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. The solution of such a system is the ordered pair that is a solution to both equations. To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect.
Example
[tex]\left \{ {{y=2x+2} \atop {y=x-1}} \right.[/tex]
Graph the equations in a coordinate plane
The two lines intersect in (-3, -4) which is the solution to this system of equations.
Step-by-step explanation: