Answer:
[tex] {y}^{2} - 9 = 0[/tex]
Step-by-step explanation:
as both 3 and - 3 are possible values of y;
[tex]y = 3 \: or \: y = - 3[/tex]
[tex]y - 3 = 0 \: or \: y + 3 = 0[/tex]
therefore;
[tex](y - 3)(y + 3) = 0[/tex]
by expanding;
[tex] {y}^{2} - {3}^{2} = 0[/tex]
[tex] {y }^{2} - 9 = 0[/tex]
how important is it to manage depression and stress effectively support your answer
Answer:
its manage to depreciate and that's all
Answer:
Effective stress management helps you break the hold stress has on your life, so you can be happier, healthier, and more productive. The ultimate goal is a balanced life, with time for work, relationships, relaxation, and fun—and the resilience to hold up under pressure and meet challenges head on.
Step-by-step explanation:
These include:
– Exercising regularly and adopting a healthy lifestyle.
– Exploring stress coping programs, which may incorporate meditation, yoga, tai chi, or other gentle exercises.
– Engaging socially.
– Avoiding unnecessary stressors by setting priorities and learning to say “no” to tasks.
18. A jar contains 200 coins.
• Zack pulls out a coin, records its value, and then puts the coin back into the jar.
• Zack does this same process 8 times and records 1 quarter, 2 dimes, 2 nickels, and
3 pennies.
Based on these results, how many coins in the jar can Zach expect to have a value of
$0.10 or more?
А
75
B.
67
C. 50
D. 25
Answer:
Step-by-step explanation:
3 coins pulled are 10 cents or more
5 coins are under 10 cents
so 3 out of 8 coins are 10 cents or more
the jar contains 200 coins
This is a ratio problem 3 is to 8 as x (an unknown value) is to 200
3/8 = x/200 solve for x
times both sides by 200
200(3/8) = x solve directly here using a calculator
600/8 = x or keep similifying until you can divide more
300/4 = x easily I kept dividing the numerator and the
150/2 = x denominator by 2 until i got 150/2 = 75
75 = x
Melissa has an outstanding credit card balance of $2200. Interest is charged at a rate of %15 p.A. The amount that Melissa must pay off the card is how much?
Answer:
$25,300
Step-by-step explanation:
Amount to be paid = interest + amount outstanding
Interest = 0.15 x $2200 = $330
Amount to be paid = $2200 + $330 = $25,300
please please complete the picture
Answer:
mode=most common answer
Step-by-step explanation:
1.12
2.9
3.1.8
4.56
5.5.9
Find the value of x in the figure shown.
Answer:
17Step-by-step explanation:
3x +39 =90
3x =90-39
3x=51
make it in fraction
3x over 3 equals to 51 over 3
simplify
= 51
Answer:
x = 17
Step-by-step explanation:
a straight line equals 180º so each side is 90º.
90 - 39 = 51
3 x __ = 51
3 x 17 = 51
so..x = 17
Please help due today I will give brainliest!
Find the slope of the line that passes through each pair of points
2. (0,1), (1,-2)
3. (2,5), (3,6)
4. (6,1), (-6,1)
5. (4,6), (4,8)
6. (5,2), (5,-2)
7. (2,5), (-3,-5)
8. (9,8), (7, -8)
9. (-5,-8), (-8,1)
10. (-3,10), (-3,7)
11. (17,18), (18,17)
12. (-6,-4), (4,1)
13. (10,0), (-2,4)
14. (2,-1), (-8,-2)
15. (5,-9), (3,-2)
16. (12,6), (3,-5)
17. (-4,5), (-8,-5)
18. (-5,6), (7,-8)
Answer:
Step-by-step explanation:
2. (-2-1)/(1-0)= -3/1 = -3
3. (6-5)/(3-2)= 1/1= 1
4. (1-1)/(-6-6)= 0/-12= 0
6. (-2-2)/(5-5)= -4/0 = undefined
5. (8-6)/(4-4)= 2/0 = undefined
7. (-5-5)/(-3-2)= -10/-5= 2
8. (-8-8)/(7-9)= -16/-2= 8
9. (1+8)/(-8+5)= 9/-3= -3
10. (7-10)/(-3+3)= -3/0= undefined
11. (17-18)/(18-17)= -1/1= -1
12. (1+4)/(4+6)= 5/10 = 1/2
13.(4-0)/(-2-10)= 4/-12 = -1/3
14. (-2+1)/(-8-2)= -1/-10= 1/10
15. (-2+9)/(3-5)= 7/-2= -7/2
16. (-5-6)/(3-12)= -11/-9= 11/9
Expand and simplify (x − 3)(2x + 3)(4x + 5)
Answer:
8x³ - 2x² - 51x - 45
Step-by-step explanation:
Given
(x - 3)(2x + 3)(4x + 5) ← expand second/third factors using FOIL
= (x - 3)(8x² + 22x + 15) ← distribute
= x(8x² + 22x + 15) - 3(8x² + 22x + 15) ← distribute parenthesis
= 8x³ + 22x² + 15x - 24x² - 66x - 45 ← collect like terms
= 8x³ - 2x² - 51x - 45
Answer:
8x^3-2x^2-51x-45
Step-by-step explanation:
(x − 3)(2x + 3)(4x + 5)
(2x^2+3x-6x-9)*(4x+5)
(2x^2-3x-9)*(4x+5)
= 8x^3-2x^2-51x-45
A runner is training for a marathon by adding on 4 minutes to the total training time each day. If the runner trains for 24 minutes the first day, which formula represents the total number of minutes the runner will train after n days?
Answer:
a
Step-by-step explanation:
Add 4 minutes to the 24 minutes each day. Multiply the number of minutes by the time.
According to the scatter plot, how many miles from home will the family be in three hours?
Distance from Start
(Miles)
A.50. B.75. C.100. D.125.
Answer:
C. 100
Step-by-step explanation:
y=2x+9 y=4x-9 Solve the system of equations.
Answer:
Your solution is (9, 27) or x = 9, y = 27
Step-by-step explanation:
y = 2x + 9
y = 4x - 9
We can see that both of these equations equal y, so we can set them equal to each other.
2x + 9 = 4x - 9
Add 9 to both sides.
2x + 18 = 4x
Subtract 2x from both sides.
18 = 2x
Divide both sides by 2.
9 = x
Now we want to find y. To do this, plug x = 9 back into one of the original equations.
y = 2(9) + 9
Multiply.
y = 18 + 9
Add.
y = 27
Your solution is (9, 27)
Check your answer by plugging x = 9 and y = 27 back into the original equations.
y = 2x + 9
27 = 2(9) + 9
27 = 18 + 9
27 = 27
y = 4x - 9
27 = 4(9) - 9
27 = 36 - 9
27 = 27
Your answer is correct.
Hope this helps!
Answer:
x=9,y=27
Step-by-step explanation:
y=2x+9,........equation 1
y=4x-9..........equation 2
from equation 1 and 2
we get
2x+9=4x-9
9+9=4x-2x
x=18/2=9
substituting value of x in equation 1
y=2×9+9=18+9=27
Samantha earns $8 p;er hour as a cashier. Write an equation that shows her earnings (E) after 'h' hours
Answer:
E=8h
Step-by-step explanation:
Becuase the earings equal the $8 times the amount of hours she worked.
Out of 10 students, 6 have a dog. Based on these results, how many students would have a dog out of 90 students?
Answer:
54 students would have a dog.
Step-by-step explanation:
If 6 out of 10 students have a dog, then multiplying 10 by 9 and 6 by 9 you will get 90 students having a dog.
Pls tell me which square unit :(
Answer:
8
Step-by-step explanation:
If I am doing this correctly you count all the dots the triangles lines are on. Which is 8 to find the area. Hope it helped have a wonderful day!
Plz help I need these answers I don’t understand
Answer:
1. B
2. C
3. A
4. D
5. C
Step-by-step explanation:
Answer:Hx5, K-9, P-5, Z-8, Ux5+8
Step-by-step explanation:
SOMEONE HELP ME REALLY FAST !!!!
The figure below was made with a scale of 1 unit =2ft.Draw the figure with a new scale of 1 unit =4ft.You can place your figure anywhere on the grid on the right.
2ft
4ft
Currentscale
=1unit2ft
Newscale
=1unit4ft
Answer:
just draw the same rectangle as on the left on the right
Step-by-step explanation:
but when finding area instead of unitsx2 use unitsx4
Find the value of the variable. No scams please.
Andrew is working for his mother's company this summer. He gets paid $0.31 for every 4 words he types. If he wants to earn $175 this summer, how many words will he need to type? Round to the nearest whole number.
Answer:
2,258
Step-by-step explanation:
4 words = $0.31
[tex]\frac{4}{0.31}[/tex] = [tex]\frac{x}{175}[/tex]
cross multiple and solve for x
0.31x = (175)(4)
x = about 2,258
A theme park want to know which new ride option is the most appealing to customers. Which sampling method produces an unbiased representative sample.
A Survey 100 randomly selected parents in a theme park.
B Survey 30 customers to enter the theme park
C Survey the first 80 teenagers to enter the theme park
D Survey the first 250 customers in the line
Answer:
i would chose a or b
Step-by-step explanation:
you want to get the one person that have the most valubale commet so pick random coustimers i wouldnt pick d becuase you are probably going to get the same answer
Answer:
survey 100 randomly selected parents in a theme park
Step-by-step explanation:
random selection.It is considered a fair way to select a sample from a larger population. (since every member of the population has an equal chance of getting selected).
13. One way to help your students learn self-reliance skills would be to:
A) Have them grade each other's papers.
B) Stand behind students when they take the test.
C) Have them set goals for learning and assess their own goals.
D) Answer every question they have with a question of your own.
14. Your students are struggling with basic addition skills. You can help them by:
A) having them create a word bank.
B) giving them a multiplication chart.
C) reteaching the skill using flash cards.
D) giving them the test again to redo for a higher grade
suppose you have a straightedge and a compass. How can you draw a triangke with sides 7,9 and 12 cm?
Complete description of the algorithm used to construct a triangle if the lengths of three sides are AB = 12, AC = 9 and BC = 7 :
With the straightedge, draw line l.
Draw point A anywhere on this line.
Draw point B on line l, at the distance
from point A.
Using a compass, draw a circle with the center in point A and radius
.
Using a compass, draw a circle with the center in point
and radius
please help me
Draw point A anywhere on this line.
Draw point B on line l, at the distance 12
from point A.
Using a compass, draw a circle with the center in point A and radius
9
Using a compass, draw a circle with the center in point B
and radius 7
Heres the screen shot
Find the value of x in the image below.
Answer:
x= 5
Step-by-step explanation:
Using the Side Splitter Theorem, we will make a proportion using the values given:
Afterwards, you can check to see that 20/10 is equal to 44/22.
Solve the system of linear equations using multiplication.
- 4x + 3y
9
5x - 2y
29
The solution is
Answer:
(15,23)
Step-by-step explanation:
-4x+3y=9
5x-2y=29
Let's multiply the first equation by 2 and the second equation by 3, in order to have the same coefficient on y.
-8x+6y=18
15x-6y=87
Add these two equations together to eliminate y.
7x=105
x=15
Now, plug in x, to find y.
5(15)-2y=29
75-2y=29
-2y=-46
y=23
Best Answer gets brainly!Thanks for helping :D
Answer:
x < 3
Step-by-step explanation:
The line is moving to negative so the number is less than 3
the white circle (or opened circle) indicates that we do NOT include that number so it is x < 3
Which term has the definition "A portion of the population"?
A. Sample
B. Data
C. Statistics
D. Bias
Answer:
A.
Step-by-step explanation:
Answer:
sample
Step-by-step explanation:
Is the relationship between x and y proportional? Show and explain your answer
Х
y
4
24
6
36
7
42
9
63
I
Answer:
Yes
Step-by-step explanation:
Being proportional means that if you divide the Y value by the X number for each ordered pair, they all equal the same number
For this case, this is proportional because you need to multiply by 6 to get the Y value.
The table shows the results from a random sample of 5 students at a high
school. Which option best describes the population from which this random
sample was taken?
Answer:
I think it's D
In ΔTUV, the measure of ∠V=90°, the measure of ∠U=85°, and VT = 20 feet. Find the length of TU to the nearest tenth of a foot.
Answer: 20.1
Step-by-step explanation: I if you are here from delta math this is the answer
Answer: 20.1
Step-by-step explanation:
sinU=
hypotenuse
opposite
=
x
20
\sin 85=\frac{20}{x}
sin85=
x
20
x\sin 85=20
xsin85=20
Cross multiply.
\frac{x\sin 85}{\sin 85}=\frac{20}{\sin 85}
sin85
xsin85
=
sin85
20
Divide each side by sin 85.
x=\frac{20}{\sin 85}=20.0764\approx 20.1\text{ feet}
x=
sin85
20
=20.0764≈20.1 feet
Type into calculator and roundto the nearest tenth of a foot.
T
U
V
20
20.1
(opposite of ∠U)
(adj. to ∠U)
(hypotenuse)
85°
HELP plz I GIVE BRAINLIEST PLUS A LOT OF POINTS Draw a number line and mark all described points on it... ...Numbers that are either negative or greater than 5.
Answer:
Please find the attached file of the given graph:
Step-by-step explanation:
this cuboid is made from cm squares
a)write down the volume of the cuboid
b)the cuboid is then split apart into these smaller cuboids. how many of these can be made?
Answer:
Step-by-step explanation:
Each signal unit cubes are 1 cm to each side
the dimensions of the large cube is 4 by 6 by 3 width height and depth
a) volume of the cube Vol = area of the base times height
area of the base = the width times the depth
Volume = Base Depth
= Width x Depth x Height
= 4 x 3 x 6
= 12 x 6
Vol = 72 cm ³
b ) the volume of the smaller cuboid has different dimensions
the smaller cube is 2 by 2 by 1 width height and depth
Volume = Base Depth
= Width x Depth x Heigh
= 2 x 2 x 1
Vol smaller cuboid = 4
How many smaller cubes can be made?
The obvious answer might be to straight up divide the large cube volume by the smaler cuboid volume. That might work IF all of the cuboid dimensions divide evenly into the cube dimensions.
Number of cuboid = Volume of the cube / Volume of the cuboid
= 72 / 4
= 18
Check this answer by dividing the dimension of the cube by the cuboid
4 by 6 by 3
2 by 2 by 1
(4/2) by (6/2) by (3/1)
2 by 3 by 3 = 2 x 3 x 3 = 18