Answer:
The ? is 4x * (-2x) = -8x².
Answer:
-8x^2
Step-by-step explanation:
-2x*4x=-8x^2
that's pretty much all the work here, I don't know what else to add in the explanation except for that this is a grid that is supposed to help you learn quadratic factoring
hope this is the right answer
PLEASE HELP. URGENT 8TH GRADE MATH QUESTION. GIVING AS MANY POINTS AS I CAN TO THE CORRECT ANSWER. THANK YOU YA'LL ARE LIFE SAVERS
HELP ANSWER THIS I WILL GIVE TEN POINTS AND THANKS!
REMEMBER TO EXPLAIN STEP-BY STEP! AND GET THE CORRECT ANSWER!
The units and tens digits of one-two digit integer are the tens and units digits of another two- digit integer, respectively. If the product of the two integers is 4930, what is their sum?
Answer:
(10t + u)(10u + t) = 4,930
100tu + 10t^2 + 10u^2 + tu = 4,930
101tu + 10t^2 + 10u^2 = 4,930
10t^2 + (101u)t + (10u^2 - 4,930) = 0
(101u)^2 - 4(10)(10u^2 - 4,930)
= 10,201u^2 - 400u^2 + 197,200
= 9,801u^2 + 197,200
We see that u = 5 gives 442,225.
√442,225 = 665
(10t + 5)(50 + t) = 4,930
500t + 10t^2 + 250 + 5t = 4,930
10t^2 + 505t - 4,680 = 0
2t^2 + 101t - 936 = 0
t = (-101 + √(101^2 - 4(2)(-936)))/(2×2)
= (-101 + √17,689)/4
= (-101 + 133)/4 = 32/4 = 8
So the numbers are 58 and 85.
58 + 85 = 143
Find an equation of the line that passes through the points (2,6) and (-4.6). Write the equation in slope-intercept form.
Answer:
change in y /change in y to get the gradient . therefore (6--6)=12 and (2--4)=6 thus 12/6=2 that the gradient.
Step-by-step explanation:
form the equation ion form of y=mx+c
and thus the equation y= 2x+c
if you take one point coordinate such as (2,6)
such that y=6 and x=2 thus the equation will be
6=2*2+C
6=4+C
C=6-4=2
therefore answer is
Y=2X+2
Answer:
Y=2X+2
Step-by-step explanation:
HURRY PLEASE!!!!!!!!
Which of the lines is a line of symmetry for the object?
A.
none of the lines
B.
VW only
C.
RS only
D.
RS and TU
Answer:
A
Step-by-step explanation:
The shape has no symmetry.
You can easily find this by just imagining how it would look if it was symmetrical from each of those lines.
For B, the bottom half of the shape is not as big as the second half, so it can't be B.
For C, you can see the the shape is more on the right side of the line at the top and more on the left side of the line at the bottom, making it not symmetrical.
It can't be D because C is not symmetrical.
22−2x<38
Which answer represents the solution set?
A. x<16
B. x>−8
C. x>−16
D. x>8
Answer:
Option B; x > -8
Step-by-step explanation:
First solve by using algebra,
=> 22 - 2x < 38
Subtract 22 from both sides,=> -2x < 16
Divide both sides by -2=> x < -8
Since you have divided both sides by a negative number, switch the inequality. From x < -8 it would be "x > -8".
Hope this helps!
The probability of rolling a number less than 3 on a number cube is 2/6. What is the probability of its complement? Simplify your answer.
Answer:
4/6
as we know probability of rolling a number less than 3 on a number cube is 2/6 and then its complement (opposite, greater than 3) that is 4/6
If rectangle ABCD is transformed to create rectangle A’B’C’D’, and the rule used was (x, y) --> (x, -y), which transformation has occurred?
A) Reflection across the y-axis
B) Reflection across the x-axis
C) Rotation of 90° around the origin
D) Translation
Answer: A) Reflection across the y-axis
I just realized how bad at math I am pls help kjshdkjh
Answer:
A. -11
B. 43
C. -1/5
D. -3 2/8
Step-by-step explanation:
Have a good day.
MULTI CHOICE Q
look in picture
Answer:
D
Step-by-step explanation:
The two legs ( shorter sides) have the right angle between them in a right triangle and
5^2 + 9^2 DOES equal 13^2
Find the perimeter of this shape.
Answer:
draw a line that makes a triangle and rectangle.
hypotenuse= 30
3k-4k-5k triangle
18-24-30
so the short part of triangle is 18 cm
10+10+18+24+30 equals 92
sorry for language I am not familiar with English
the perimeter of this shape is
24+10+10+30+\(\sqrt{30^{2} -24^{2} }\) = 92 cm
-5 1/2 + 6 3/4 + (-4 1/4) =
Answer: -3
I think its -3 you can pick it if you want
Can someone solve this for me please
\(\frac{1}{3}\)Answer:
V ≈ 452.39 cm³
Step-by-step explanation:
the volume (V) of a cone is calculated as
V = \(\frac{1}{3}\) πr²h
here r = 6 and h = 12 , then
V = \(\frac{1}{3}\) π × 6² ×12
= \(\frac{1}{3}\) π × 36 × 12 ( cancel 3 and 36 by 3 )
= π × 12 × 12
= 144π
≈ 452.39 cm³
the units for this problem are cm³
Raina sells beaded necklaces. Each large necklace sells for $4.40 and each small necklace sells for $3.90. How much will she earn from selling 1 large necklace and 6 small necklaces?
Help Help Help ! Math wiz
Answer:
This is not an exponential function because the variable is in the exponent position.
8 hundred + 10 tens+0 ones
.........
Answer:
it's 900
Step-by-step explanation
Help me please :,)))))))))))))
Hi! Can someone help me with the find the distance between two points. Thank you!
Answer:
20
Step-by-step explanation:
Using the distance formula
Answer: all you got to do is count all the space and you well get close to the -10 to be 6 -7
Step-by-step explanation:
A project will take a total of 720 person-days to complete. If the project must be completed in 30 days, how many people must be employed? PLEASE HURRY
Answer:
192 hours per day / 8 hours per person per day = 24 people
Step-by-step explanation:
Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:
720 person-days x 8 hours = 5,760 hours
To complete the project in 30 days, the total number of hours needed per day is:
5,760 hours / 30 days = 192 hours per day
What is the combined probability of getting a heads when flipping a coin and an odd number when spinning a spinner with 4 equal parts numbered 1 to 4?
A.1/4
B.1/2
C.2/4
D.3/8
Answer:
Well, flipping a coin is 50/50 or 1/2.
And you have a 1/4 chance of landing on something on the spinner.
1/2 + 1/4 = 2/8 or 1/4.
So, I would say 1/4.
Step-by-step explanation:
:)
Sorry if wrong....:)
What is the twelfth term in the sequence 13, 26, 39, …?
A. 39
B. 52
C. 156
D. 166
Answer:
156Step-by-step explanation:
Given the sequence
13, 26, 39, …We see it is an AP with
The first term a = 13Common difference d = 13 ( as 26 - 13 = 39 - 26 = 13)The 12th term is:
a₁₂ = a + 11d = 13 + 11*13 = 156Help pls. I'll mark as brainlist.
1 feet = 12 inches
So, it's proportional2. The number of cookies baked and the minutes in the ovenSo, it's not proportional3. One bread needs a fixed grams of flourSo, it's proportional4. Since s = vtSo, it's proportional5. One gallon of gasoline cost's a fixed prince.So, it's proportionalNote : We just need to judge whether it accords with "y = kx"
{Proportional relationship}
You are told that you will have to wait for 5 hours in a line with a group of other people. Determine if:
You know the number of minutes you have to wait.
You know how many people have to wait.
For each statement, if you answer yes draw an input-output diagram and write a statement that describes the way one quantity depends on another.
If you answer no give an example of 2 outputs that are possible for the same input.
Answer:
Step-by-step explanation:
You that 60minutes makes 1 hour
So you will multiply the 60minutes by 5
And u will get 300
So your 5 hours will be 300 minutes
In this exercise we have to use the conversion to identify the values spoken in the text:
1 hour is the same that 60 minutes.
5 hours is the same that 300 minutes.
Are performing the conversion calculations we find that;
\(60 minutes= 1 h\\x minutes= 5h\\x= 300 minutes\)
See more about conversion at brainly.com/question/4736731
Please answer quickkkkk!!!!!! PLEASE PLEASE!!!!!!1
Answer:
Acute: 2
Obtuse: 1
Right: 1
Step-by-step explanation:
Acute angles are less than 90 degrees
Obtuse angles are more than 90 degrees
Right angles are always 90 degrees
Answer:
Acute: 2
Obtuse: 1
Right: 1
Step-by-step explanation
Acute angles are less than 90 degrees
Obtuse angles are more than 90 degrees
Right angles are always 90 degrees
Just add them all up
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
Solve the equations.
Answer:
D=1
S=4.1
C=-140
Step-by-step explanation:
Inverse operations
Reggie works at Bright Bouquets flower shop.
Yesterday, he made 4 centerpieces, which would normally use up an entire shipment of roses. In the shop's latest shipment,
12 roses were wilted, so Reggie couldn't use them. He used the remaining 36 roses in the centerpieces.
Which equation can you use to find how many roses, x, Reggie normally uses in a centerpiece?:?????????? HELP
Answer:
He normally uses 12 roses in a centerpiece
Step-by-step explanation:
The equation he can use will be,
4x - 12 = 36
4x = 48
x = 12
ASSSSAAAAPPP 25 POINTSSSS BRAINLESTTTT!!!!!
The length of a rectangle is 1 foot more than twice the width. The area is 55 square feet. Find the perimeter of the rectangle.
Answer:
5 ft and 11 ft
Step-by-step explanation:
l= 2w+1
A=lw= 55
w(2w+1)=55
2w²+w-55=0
integer solution of quadratic equation is:
w=5 ft
l= 2*5+1=11 ft
Answer:
32 feet
Step-by-step explanation:
Start by creating your 2 equations
l = 2w + 1
l * w = 55
Plug in l, the isolated variable
(1 + 2w)w = 55
w + 2w² = 55
2w² + w -55 = 0
( − 5 ) ( 2 + 1 1 ) = 0
w= 5
w= -11/2 <- the width can't be negative so this one is out
Plug width into the area formula to find length
l * 5 = 55
l = 11
Find the Perimeter
2(11) + 2(5)
22 + 10 = 32
i need help with this question please help me
Answer:
The answer is D.
Step-by-step explanation:
y = mx + b
C = 5/9 (F - 32)
C = 5/9F - 5/9 (32)
Option (D) is correct.
Ryan can use the mean, median, or mode to describe the average of his test scores.
His scores are 62, 64, 93, 68, and 93.
Which of the following statements is false?
The median is greater than the mean.
The mean is less than the mode.
The mode is greater than the range.
The range is less than the mean.
Answer:
this makes no sense sorry
Step-by-step explanation:
i can't help you
2/3x - 12, x=18 (show work)
Answer:
0
Step-by-step explanation:
Since we know x=18, we need to find 2/3 of 18.
Let's make 2/3 so that the denominator(bottom part of a fraction) is 18.
18 divided by three is six so we needs to times the top number, 2, by 6.
The fraction would now be 12/18. Now we needs to subtracts 12 which would become 0/18. This equals 0.