1. Observe problem
Solve for the area and Circumference of a circle who's radius is 3 cm
Area for circle formula:
pi*r^2=
9pi
I simplicity is needed, 9 pi is around
28.2743338823cm^2
Circumference for circle formula: 2*pi*r
which is
6pi
if simplicity is again needed, its around
18.8495559215cm
Find the inverse of the matrix [7, -3] [-10, 7] if it exists
Answer:
A
Step-by-step explanation:
[tex]\left[\begin{array}{ccc}\frac{7}{19} &\frac{3}{19}\\\frac{10}{19} &\frac{7}{19} \end{array}\right][/tex]
Evaluate 2( s + t )^3 - 6 when s = 3 and t = 2 The value of the expression is
Answer:
244
Step-by-step explanation:
5 x 4\9 can you tell me the way to get the answer
Answer:
[tex]\frac{20}{9}[/tex] as an improper fraction or [tex]1\frac{2}{9}[/tex] as a mixed number
Step-by-step explanation:
[tex]5*\frac{4}{9}\\ \\\frac{5}{1}*\frac{4}{9}\\ \\\frac{5*4}{1*9}\\\\\frac{20}{9}\\ \\1\frac{2}{9}[/tex]
7(-4x - 1) = 49
Not sure of steps
Answer:
Step-by-step explanation:
7(-4x - 1) = 49
-28x - 7 =49
-28x = 49 + 7 = 56
x = 56/(-28) = -2
Answer:
7 x - 4x = - 28x
7 x - 1 = - 7
-28x - 7 = 49
+7 both sides
-28x = 56
÷ - 28
x = 56/-28
x = - 2
I substitute to double check my answer:
- 4x
-4x-2 =8
7(8- 1)
7x 8 = 56
7 x - 1 = - 7
56-7= 49
Hope this helps!
brainliest for best answer
Answer:
Slope = -5/8
Step-by-step explanation:
Take 2 points from the graph where the line is. Point 1: (1 , 6). Point 2: (9 , 1).
We are going to use the formula for finding the slope of a line now.
y2 - y1/x2 - x1 = 1 - 6/9 - 1 = -5/8
Slope = -5/8
If a woman making $31,000 a year receives a cost-of-living increase of 2.6%, what will her new salary be?
can anyone please help me please, i will give free brainliest
Answer:
1/2
Step-by-step explanation:
Yes, I agree.
Make a graph [tex]y=-\frac{4}{5}x+\frac{2}{5}[/tex]
The point of intersection of the line with x-axis is the solution of [tex]-\frac{4}{5}x+\frac{2}{5}=0[/tex]
Multiply by 5 on both sides, get -4x + 2 = 0, x = 2/4 = 1/2
The solution is 1/2.
Graph the following equation y+2=3/5(x+3)
Answer:
Step-by-step explanation:
It is given
2x−3y=5
we can write it as
3y=2x−5
So we get
y=32x−5
Substituting x=4 in the given equation
y=32(4)−5
So we get
Y=38−5
y=33
By division we get
y=1
Substituting x=−2 in the given equation
y=32(−2)−5
So we get
y=3−4−5
y=3−9
By division we get
y=−3
x 4 -2
y 1 -3
Now draw a graph using the points (4,1) and (−2,3)
Join the point through a line and find the value of y
(i) Based on the graph
consider x=4 on X-axis
Now the line joining the two points and a point on the Y-axis gives the value of y
Therefore,when x=4 the value of y=1
(ii) Based on the graph,
Consider y=3 on Y-axis
Now the line joining the two points and a point on the X-axis the value of x
Therefore, when y=3 the value of x=7
What is the area of this trapezoid?
Enter your answer in the box.
units2
A rectangle with a length of 3 and a height of 8 has two right triangles on each side of it with short leg lengths of 7.
Answer:
80 squared units.
Step-by-step explanation:
7 × 8 = 56 u squared for the triangles
you don't need to divide by two because there are two triangles.
3 × 8 = 24 u squared for the rectangle
56 + 24 = 80 squared u
Brainliest Appreciated!
True or false analysis only involves identifying meaning and subject and predicate terms
Answer:
i would say the answer is true but I'm not completely sure this is the answer.
Answer:
TRUE
Step-by-step explanation:
find the value of x and give reasoning in the following image
Answer: 80
Step-by-step explanation:
Angle FGB = 80 degrees b/c supplementary angles.
By the sum of interior angles of a quadrilateral, angle FEB = 360 - 75 - 95 - 90 = 100 degrees.
x is supplementary with this angle and is this 180 - 100 = 80.
Determine whether the triangles are similar by AA, SSS, SAS, or not similar
Answer:
Step-by-step explanation:
If Δ JKL ~ Δ JHG , then
[tex]\frac{LJ}{GJ}[/tex] = [tex]\frac{KJ}{HJ}[/tex]
[tex]\frac{95}{68}[/tex] ≠ [tex]\frac{87}{72}[/tex] ⇒ triangles are not similar
y-6≤=15+8y
pls dont report
Answer:
-4, -10, -2
Step-by-step explanation:
[tex]y-6\leq 15+8y\\-21\leq 7y\\y\geq -3\\[/tex]
so the answer is -4, -10, -2
Answer:
99.9% sure it's -4, -10, -2
Step-by-step explanation:
y−6≤15+8y
−21≤7y
y≥−3
so that be providing that you're gonna get
-4, -10, -2
Use the four-step definition of the derivative to find f'(x) if f(x) = −4x^3 −1.
f(x+h) =
f(x+h)-f(x) =
f(x+h)-f(x)/h =
f'(x) =
[tex]\stackrel{de finition \textit{ of a derivative as a limit}}{\lim\limits_{h\to 0}~\cfrac{f(x+h)-f(x)}{h}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{[-4(x+h)^3-1]~~ - ~~[-4x^3-1]}{h} \\\\\\ \cfrac{[-4(x^3+3x^2h+3xh^2+h^3)-1]~~ ~~+4x^3+1}{h} \\\\\\ \cfrac{[-4x^3-12x^2h-12xh^2-4h^3-1]~~ ~~+4x^3+1}{h} \\\\\\ \cfrac{-4x^3-12x^2h-12xh^2-4h^3-1+4x^3+1}{h}\implies \cfrac{-12x^2h-12xh^2-4h^3}{h}[/tex]
[tex]\cfrac{h(-12x^2-12xh-4h^2)}{h}\implies -12x^2-12xh-4h^2 \\\\\\ \lim\limits_{h\to 0}~-12x^2-12xh-4h^2\implies \lim\limits_{h\to 0}~-12x^2-12x(0)-4(0)^2 \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \lim\limits_{h\to 0}~-12x^2~\hfill[/tex]
HELPP 100 points
What is the value of the function y = 3x – 1 when x = 12
0 -8
0-4
O 2
o 6
Answer:
The answer is B -4
Step-by-step explanation:
Answer:
y=
Step-by-step explanation:
y = 3x - 1
y = 3(12) - 1
y = 36 - 1
y = 35
In the figure below, AD and EC intersect at point G, mAGB= 31°, and mAGE equal 71°
Answer: A
Step-by-step explanation:
Because angle EGC is as straight angel, angle BGC = 180 - 31 - 71 = 78
A $290 suit is marked down by 30%. Find the sale price.
Answer:
I believe the new price is 203.
Step-by-step explanation:
Find the surface area of this rectangular prism. Be sure
2 cm
2 cm
9 cm
Answer: 80 cm^3
Step-by-step explanation:
I assume you mean that the sides of the rectangular prism are of lengths 2cm, 2cm, and 9 cm.
Surface area of a rectangular prism: 2(wl+hl+hw)
2((2*2)+(9*2)+(9*2))
=2(4+18+18)
=2(40)
=80cm^3
Hope this helped.
differentiate between factors and prime factors use relavant examples in your explanations?
Answer:
The factors of a number are all of the numbers that will divide into that number with no remainder. The prime factors of a number are the prime numbers that must be multiplied together to give the number. For example: The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The prime factors of 30 are 2, 3, and 5.
Help me find the equation of the line. Whoever answers will get Brainliest. (SERIOUS ANSWERS ONLY)
Answer:
Y= 9/10x - 1.2 (or 1.3)
Or - 1. 2 is 6/5
Thus, Y= 9/10x - 6/5
Hope this helps!
167
4
3
2
1
-6 -5 -4 -3 -2
4
2
3
6
- 2
-1
slope =
- 2
-3
--
What is the slope
Answer:
5/2
Step-by-step explanation:
I used coordinate (-4, -2) and (-2, 3)
Slope=change in y/change in x
-2-3=-5
-4-(-2)=-2
-5/-2=5/2
Answer:
[tex]\frac{-5}{-2}[/tex] or 2.5
Step-by-step explanation:
(-2,3) and (-4,-2)
[tex]\frac{-2-3}{-4-(-2)}[/tex] ==> [tex]\frac{-5}{-2}[/tex] ==> 2.5
Hope that helps!
Use the following equation.
2C2H6 + 7O2 --> 4CO2 + 6H2O
- How many moles of O2 will be needed to produce 26.14 moles of H2O?
Answer:
1 mole of Oxygen and two moles of Hydrogen
Step-by-step explanation:
The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g.
Consider the following expression and determine which statements are true.
\dfrac{7}{r}+2^3+\dfrac{s}{3}+11
r
7
+2
3
+
3
s
+11start fraction, 7, divided by, r, end fraction, plus, 2, cubed, plus, start fraction, s, divided by, 3, end fraction, plus, 11
Choose 2 answers:
Choose 2 answers:
(Choice A)
A
The entire expression is a sum.
(Choice B)
B
The coefficient of sss is 333.
(Choice C)
C
The term \dfrac{7}{r}
r
7
start fraction, 7, divided by, r, end fraction is a quotient.
(Choice D)
D
The term 2^32
3
2, cubed has a variable.
Answer:
write the question properly-_-
Answer:
The answer is A&C
Step-by-step explana
A shopkeeper sold a table for Rs 2400, he loses 6% of its cost price.find the cost price of the table.
Answer:
Table price is Rs 2544
Step-by-step explanation:
Table sold = Rs 2400
Losses = 6%
Now find 6% of 2400
( 2400 × 6 ) ÷ 100 = 144
Add this answer to table price sold
2400+ 144 = 2544
Mark brainliest if you understand
The expression (x3)(x-17) is equivalent to x". What is the value of n?
Answer:
Hello how are you
n equals -14
Describe the transformation for g(x) = -f(x) - 5.
A. reflection over the x-axis and a vertical translation down by 5 units
B. reflection over the y-axis and a vertical translation up by 5 units
C. reflection over the x-axis and a horizontal translation to the right by 5 units
D. reflection over the y-axis and a horizontal translation to the left by 5 units
Answer:
A) reflection over the x-axis and a vertical translation down by 5 units
Step-by-step explanation:
Making the output negative reflects the graph over the x-axissubtracting or adding a constant from/to the function translates it down/up (along the y-axis) by that many unitsI really need help Really
Answer:
920cm^2
Step-by-step explanation:
look at the attachment below hope it helps pls mark brainliest :)
Find the diameter and the radius of the circle 13yd
Answer:
52
Step-by-step explanation:
This is because the formula is dr
If you open a bank account with a $200 starting balance and it earns 2.5% interest, compounded annually, how much interest will you earn in 10 years?
Answer:
$56.02
Step-by-step explanation:
The account balance after 10 years is given by the future value formula:
FV = P(1 +r)^t . . . . . principal P invested at rate r compounded annually for t years
FV = $200(1 +0.025)^10 ≈ $256.02
The amount in excess of the original investment is the interest earned:
$256.02 -200.00 = $56.02 . . . . interest earned in 10 years
Answer:
$256.02
Step-by-step explanation:
Here is the formula: 200(1.025)^10.
The .025 is the percentage of the interest, and the 1 is the money you already have (which is 200). The ^10 is the 10 years.
If you take the (1.025)^10, you'll get an incredibly large number, 1.2800....
Take that large number and multiply it by the amount of money you originally have, $200. Then you'll get something like 256.0169... Round to the near hundredth, and you'll have 256.02
Will mark brainlist please help
Answer:
Step-by-step explanation: