Answer:
[tex]b^{2} -2b+5[/tex]
Step-by-step explanation:
-4x-4y=24, 3x+10=y
since y is already isolated in the second equation, we can substitute the y value subs 2 into 1.
Next I have to combine like terms????
[tex]-4x-4y = 24~~...(i)\\\\3x +10 = y~~....(ii)\\\\\text{Substitute}~ y = 3x +10~ \text{in eq (i):}\\\\-4x -4(3x+10) = 24\\\\\implies -4x -12x -40=24\\\\\implies -16x =24+40\\\\\implies -16x = 64\\\\\implies x =- \dfrac{64}{16}\\\\\implies x = -4\\\\\text{Substitute}~ x = -4 ~ \text{in equation (ii) to find y:} \\\\y=3(-4) +10 = -12 +10 = -2\\\\\text{Hence,}~(x,y) = (-4,-2)[/tex]
ratio of passenger cars to cargo cars in
the rail yard is 18:4. If there are 8 cargo
cars, how many cars are there altogether?
passenger cars = 36
total no. of cars = 36 + 8 = 44
hope it helps...!!!
Write an equation in point-slope form of the line that passes through the point (-6,6) and has a slope of m=3/2
Answer:
y-6=(3/2)(x+6)
Step-by-step explanation:
Given:
slope = m = 3/2point = (x1,y1) = (-6,6)Point-Slope:
[tex]\displaystyle \large{y-y_1=m(x-x_1)}[/tex]
Substitute m = 3/2, x1 = -6 and y1 = 6:
[tex]\displaystyle \large{y-6=\dfrac{3}{2}[x-(-6)]}\\\displaystyle \large{y-6=\dfrac{3}{2}(x+6)}[/tex]
Therefore, the equation is y-6=3/2(x+6)
f(x) = 4x + 3 and g(x) = x - 2. What is g(f(-6))?
Answer:
The answer is equal to -23.
Step-by-step explanation:
Please refer to the attachment below; I had issues posting the answer.
Square root of 75x^2 y
[tex]\sqrt{75x^2 y}\\\\=\sqrt{75} \cdot x\sqrt y\\\\=\sqrt{25 \times 3} \cdot x\sqrt y\\\\=5\sqrt 3 \cdot x \sqrt y[/tex]
In a right triangle, the side opposite angle φ has a length of 29.0 meters, the side adjacent to angle φ has a length of 49.5 meters, and the hypotenuse has a length of 57.4 meters. What is the value of cot(φ)?
1.979
1.707
0.586
1.160
The right triangle with sides 29m, 49.5m and 57.4 m has the value of cot φ as 1.707
What is a right angle triangle?A right angle triangle has one of its angles as 90 degrees.
Therefore, it has an opposite, adjacent and hypotenuse side depending on the angle.
oposite side = 29 m
adjacent side = 49.5 m
hypotenuse side = 57.4 m
Therefore,
cot φ = 1 / tan φ
Hence,
tan φ = opposite / adjacent
Therefore,
cot φ = adjacent / opposite
cot φ = 49.5 / 29
cot φ = 1.70689655172
cot φ = 1.707
learn more on right triangle here: https://brainly.com/question/14615710
Answer please and leave an explanation too! thank you!
1. If the arc angle of a sector is doubled, then the area of the sector......
A. is half
B. remains the same
C. doubles (increases by a factor of two)
D. triples (increases by a factor of three)
E. quadruples (increases by a factor of four)
2. If the radius of a sector is doubled, then the area of the sector......
A. is half
B. remains the same
C. doubles (increases by a factor of two)
D. triples (increases by a factor of three)
E. quadruples (increases by a factor of four)
Answer:
1-C; 2-D.
Step-by-step explanation:
0) the common formula is:
area=π*r²;
1) according to the formula above the area of the sector C. doubles (increases by a factor two);
2) according to the formula the area of the sector D. quadruples (increases by a factor four).
The formula for the perimeter of a rectangle is P = 2w + 2l. Write a formula that can be used to find the length, 1, in terms of P, and w.
Alex is 12 years older than George.
Carl is three times older than Alex
The sum of their ages is 68
Find the ratio of George's age to Carl's age to Alex's age.
Answer:
George : Carl : Alex = 1 : 12 : 4
Step-by-step explanation:
let a = Alex's age in years
let g = George's age in years
let c = Carl's age in years
Given:
Alex is 12 years older than George⇒ a = 12 + g
⇒ g = a - 12
Given:
Carl is three times older than Alex⇒ c = 3a
Given:
The sum of their ages is 68⇒ a + g + c = 68
Substitute the first two equations in the last equation and solve for a:
⇒ a + (a - 12) + 3a = 68
⇒ 5a - 12 = 68
⇒ 5a = 80
⇒ a = 16
Substitute the found value of a into the other equations to find g and c:
⇒ g = 16 - 12 = 4
⇒ c = 3(16) = 48
Therefore:
Alex = 16 years oldGeorge = 4 years oldCarl = 48 years oldRatio
George : Carl : Alex = 4 : 48 : 16
Reduce by dividing by 4 → 1 : 12 : 4
find tow rational number between –2 and 2
Answer:
i got you explain
Step-by-step explanation:
Two rational numbers between -2 and 2 are : 0 and 1.
or The two rational no are -1 and +1
[tex]\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\ \\ [/tex]
→ first rational number
[tex] \tt{⇒ \frac{ ( { \cancel{-2}}+{ \cancel 2)}} {\cancel{2}}} \\ \\ \tt{⇒ \frac{ 0}{2} }\\ \\ \tt{⇒0} [/tex]
[tex] \pink{ \rule{60mm}{2.2pt}}[/tex]
→ Second rational number
[tex]\\ \tt{⇒ \frac{(-2+0)}{2}} \\ \\ \tt{⇒ \frac{ \cancel{-2}}{ \cancel{2}} }\\ \\ \tt{⇒-1} [/tex]
[tex]\rule{70mm}{3.9pt}[/tex]
[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]
Arrange the following fraction in ascending order 4/12 , 5/6 , 2/3 5/6
Answer:
4/12 2/3 5/6 5/6
Step-by-step explanation:
The radius of the large sphere is times longer than the radius of the small sphere. how many times the volume of the large sphere is the volume of the small sphere?
The volume of the large sphere shown in the image is, 1/27 times the volume of the small sphere.
What is of volume of sphere?Volume of sphere is the amount of quantity, which is obtained by the it in the 3 dimensional space.
The volume of the sphere can be given as,
[tex]V=\dfrac{4}{3}\pi r^3[/tex]
Here, (r) is the radius of the sphere.
The radius of the large sphere is times longer than the radius of the small sphere. Here in the attached image,
The radius of the large sphere, 18.6 in.The radius of the small sphere is 6.2 in.The ratio of the volume of the large sphere to the volume of the small sphere is,
[tex]\dfrac{V_l}{V_s}=\dfrac{\dfrac{4}{3}\pi (18.6)^3}{\dfrac{4}{3}\pi (6.2)^3}\\\dfrac{V_l}{V_s}=\dfrac{18.6\times18.6\times18.6}{6.2\times6.2\times6.2}\\\dfrac{V_l}{V_s}=\dfrac{1}{27}[/tex]
Thus, the volume of the large sphere shown in the image is, 1/27 times the volume of the small sphere.
Learn more about the volume of sphere here;
https://brainly.com/question/22807400
Answer:
1/27
Step-by-step explanation:
Help me in math please
Answer:
1. 27.5
2.32.5
3.30
6.22.5
11. 17.5
16.12.5
21. 7.5
7.27.5
12.22.5
17.17.5
22.12.5
8.25
13.20
18.15
23.10
Which orders pair is the solution to the system of equations
Answer: C) (12, -14)
Step-by-step explanation:
I am going to solve by elimination.
Start by subtracting one equation from the other
[tex]y=-x-2\\-(y=-\frac{1}{2} x-8)\\0=-\frac{1}{2} x+6[/tex]
Now solve for x
[tex]0=-\frac{1}{2} x+6\\0-6=-\frac{1}{2} x+6-6\\-6=-\frac{1}{2} x\\(-6)(-2)=(-2)(-\frac{1}{2} x)\\12=x[/tex]
Now sub in x into one of the equations to find the value of y
[tex]y=-(12)-2\\y=-14[/tex]
Someone help me please
what is the measure of XWV?
Answer:
Then the vertex is at (h, k) = (2, –3) and the value of p is –3. Since y is squared and p is negative, then this is a sideways parabola that opens to the left. This puts the focus 3 units to the left of the vertex.
vertex: (2, –3); focus: (–1, –3)
Step-by-step explanation:
The radius of a circle is 4 m. Find its area in terms of
π
π.
Answer:
16π
Step-by-step explanation:
Given:
[tex]\text{Radius of circle}: 4 \ \text{m}[/tex]
Formula:
[tex]\text{Area of circle} = \pi r^{2}[/tex]
Replace the radius in the formula:
[tex]\implies \text{Area of circle} = \pi (4)^{2}[/tex]
Evaluate the area:
[tex]\implies \text{Area of circle} = \pi (4)(4)[/tex]
[tex]\implies \text{Area of circle} = 16\pi[/tex]
Since the question says to determine the area in terms of π, the final answer is 16π.
14
Select the correct answer from each drop-down menu.
A scientist conducted an experiment to measure the effect of apple cider vinegar on blood sugar levels. The scientist randomly selected
200 adults and randomly assigned them to two subject groups. The first subject group received an apple cider vinegar supplement, and the
second subject group received a placebo. The scientist was aware of which subjects were assigned to each group.
This experiment is
because
know which treatment group each subject is in
Answer:
The first one is blinded. I didn't get the other one though. The one that says "neither the subjects nor the researchers" is wrong.
Step-by-step explanation:
I use Plato.
The experiment is blindeded because the scientist know which treatment group each subject is in.
What is experiment?Experiment is the scientific approach to determine the properties of some sample by doing some research on it eg. By adding another material, or determination of hypothesis.
What is hypothesis?Hypothesis is the assumption which is made under some evidence which can be proceed further verification or by doing experiment on it.
From the question it is clear that the scientist wants to meassure the effect of apple cider vinegar subject on the blood sugar level.
So here the effect of apple cider vinegar subject on the blood sugar level is hypothesis.
From 200 randomly choosen young groups one half have taken apple cider where other half have taken placebo in order to clarify and study which group has taken which treatment and their effect in their blood sugar level.
Learn more about experiment
Here : https://brainly.com/question/5397388
#SPJ2
13. Which equations are true? Select All that apply
0 17.25= 7.25
0 17.251 = -7.25
0 17.251 = 17.251
O 1-7.25) = 7.25
0 -7.25) = -7.25
-
Answer: 0 17.251 = -7.25
0 17.251 = 17.251
Step-by-step explanation:
make sense
Sb pls help me with this question
laura bought a square canvas to paint a picture of her cat. One side measures 22 centimeters. What is the area of the canvas?
Answer
The area will be 484 square centimeters.
Anyone know the Answer???
A figure has a vertices W(-2,4), and X(1,4. Find the coordinates of the figure after a dilation with a scale factor of 2. W(-4,83), X(2,8) W(-4,8), X(2,8)
Answer:
Step-by-step explanation:
Write an algebraic expression The product of c and 3
Answer:
The answer is c3 or c x 3.
Step-by-step explanation:
Because the product in math is multiplication, the product of c and 3 would be c x 3.
Which expression is equal to 78?
8 ÷ 7
7−8
7 ÷ 8
8−7
Answer:
c)
Step-by-step explanation:
This is not multiple-choice, I need steps and how we found the answer, help I've been stuck for 2 days now!!!!
Find the surface area of the figure. Be sure to show all of your work and steps in solving for your answer.
Answer:
The surface area of a figure is the sum of all the sides that consist of it.
Let's first find the base's area, using the formula for the area of a rectangle, L · W:
9(6)
= 54 is the area of the base.
Now let's find the entire front side of this figure's area and double it so we get both the areas of the front and back side (using the formula for the area of a rectangle):
4(9)[bottom front rectangle] + 4(5)[upper front rectangle]
36 + 20
= 56, now double that area to get the area of both the front and back side:
56(2)
= 112 is the area of both the entire front and back side of this figure.
Now let's figure out the area of the right whole side of this figure then double it so we get both the areas for the left and right sides.
But, if we look at the middle rectangle to the right and left sides, we can see that there is no value, so let's find the value first.
The total length across the figure is 9 inches.
And we are given that the rectangle above intersects with the total length, so let's exclude that from 9 inches.
9 - 4 = 5, so now the total length of the two rectangles beside the above rectangle is 5.
But we want to find the value of one side, so divide 5 by 2.
5/2 = 2.5 inches.
Now let's find the whole entire area of the right side to this figure.
5(6)[upper right rectangle] + 2.5(5)[flat middle right rectangle] + 6(4)[bottom right rectangle)
30 + 12.5 + 24
= 66.5, now double that area to get both the area of the right and left side.
66.5(2)
= 133, is the area of both the right and left side of this entire figure.
Finally, we add all those areas together to get the surface area:-
54 + 112 + 133
= 299 inches is the surface area for this figure.
Answer:The surface area of a figure is the sum of all the sides that consist of it.
Let's first find the base's area, using the formula for the area of a rectangle, L · W:
9(6)
= 54 is the area of the base.
Now let's find the entire front side of this figure's area and double it so we get both the areas of the front and back side (using the formula for the area of a rectangle):
4(9)[bottom front rectangle] + 4(5)[upper front rectangle]
36 + 20
= 56, now double that area to get the area of both the front and back side:
56(2)
= 112 is the area of both the entire front and back side of this figure.
Now let's figure out the area of the right whole side of this figure then double it so we get both the areas for the left and right sides.
But, if we look at the middle rectangle to the right and left sides, we can see that there is no value, so let's find the value first.
The total length across the figure is 9 inches.
And we are given that the rectangle above intersects with the total length, so let's exclude that from 9 inches.
9 - 4 = 5, so now the total length of the two rectangles beside the above rectangle is 5.
But we want to find the value of one side, so divide 5 by 2.
5/2 = 2.5 inches.
Now let's find the whole entire area of the right side to this figure.
5(6)[upper right rectangle] + 2.5(5)[flat middle right rectangle] + 6(4)[bottom right rectangle)
30 + 12.5 + 24
= 66.5, now double that area to get both the area of the right and left side.
66.5(2)
= 133, is the area of both the right and left side of this entire figure.
Finally, we add all those areas together to get the surface area:-
54 + 112 + 133
= 299 inches is the surface area for this figure.
Step-by-step explanation:
Paige is taking out a loan in the amount of $10,000. Her choices for the loan are a 4-year loan at 4% simple interest and a 6-year loan at 5% simple interest. What is the difference in the amount of interest Paige would have to pay for each of these two loans?
Answer:
1%
NO Step-by-step explanation:
Find The distance between (5,2) and (5,0) on the coordinate Plane
Answer:
2
Step-by-step explanation:
2 is 2 away from 0
Shondra was unsure about what career to go into. Her high school counselor suggested a personal assessment to point out Shondra’s interests. The assessment revealed that Shondra is very passionate about justice and making sure that people stay safe and treat each other fairly. Shondra also enjoys physical fitness and can handle risky high-pressure situations well.
Shondra would be well suited for which career cluster. Select three options.
Answer:
lawer, Police officer criminal justice
The total amount of deductions from an employee’s gross pay is $83.20. if the gross pay is $378.18, what percent of their gross pay is being withheld? a. 21% b. 22% c. 23% d. 24% please select the best answer from the choices provided a b c d
The total amount of deduction in percentage is 22%. Then the correct option is B.
What is the percentage?The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.
The total amount of deductions from an employee’s gross pay is $83.20. if the gross pay is $378.18.
Then the percentage will be given as
[tex]\rm P = \dfrac{83.20}{378.18}\times 100\\\\P = 0.220 \ or \ 22\%[/tex]
More about the percentage link is given below.
https://brainly.com/question/8011401
mean absolute deviation of 290
Answer:
3.5555555555556
Step-by-step explanation:
you cannot find the Mean Absolute Deviation of one number. This answer is the data set 2, 9, and 0. 3.5555555555556 is the Mean Absolute Deviation of 2, 9, 0.