Step-by-step explanation:
here's your solution
=> (x^2 - 7) (x^2 - 4)
=> x^2(x^2 - 4) - 7(x^2 - 4)
=> x^4 - 4x^2 - 7x^2 + 28
=> x^4 - 11x^2 + 28
hope it helps
What type of lines are EF and GH?
Help I need help in this geometry question
Answer:
roughly 10.72
Step-by-step explanation:
Use Phyth. Thm.
16^2 + x^2 = 25^2
x^2 = 369
= 19.20937271 (this is now the height for the second triangle)
x^2 + 19.20937271^2 = 22^2
115.0000001 = x^2
x = roughly 10.72
On Monday, Randy earned 12 points in his game.
On Tuesday, he earned 2 times as many points as he did on Monday.
On Wednesday, Randy earned 3 more points than he did on Tuesday.
How many points did Randy earn in all three days?
Answer:
[see below]
Step-by-step explanation:
Randy first won 12 points on Monday. He earned as twice as many on Tuesday.
12 * 2 = 24
Randy scored 24 points Tuesday.
Randy earned 3 more points than Tuesday's points the next day.
24 + 3 = 27
Randy earned 27 points Wednesday.
12 + 24 + 27 = 63
Randy should earn a total of 63 points for the 3 days.
Hope this helps.
Simplify the expression using properties of exponents. 25a^-5b^-8/5a^4b
Answer: The simplification is [tex]5*a^{-9}*b^{-9}[/tex]
Step-by-step explanation:
Here we need to use the property:
[tex]\frac{a^n}{a^m} = a^{n - m}[/tex]
We have the expression:
[tex]\frac{25*a^{-5}*b^{-8}}{5*a^{4}*b}[/tex]
We can separate it in parts with the same base, then we can rewrite this as:
[tex]\frac{25*a^{-5}*b^{-8}}{5*a^{4}*b} = \frac{25}{5} \frac{a^{-5}}{a^4} \frac{b^{-8}}{b}[/tex]
Using the first property we can rewrite this as:
[tex]\frac{25}{5} \frac{a^{-5}}{a^4} \frac{b^{-8}}{b} = 5*a^{-5 - 4}*b^{-8 - 1} = 5*a^{-9}*b^{-9}[/tex]
Given the equation of a line y =-5x -16, what is the slope of a line PARALLEL to this line?
Answer:
-5
Step-by-step explanation:
slopes of parallel lines are the same
PLEASE HELP!!!!!!!!!!!!!!!!!!!! NEED THIS NOWWWW!!!!!!! WILL GIVE BRAINLIEST!!!!!!!!!!!!!1
Answer:
22
50
Step-by-step explanation:
Help me? Giving brain
Answer:
40%
Step-by-step explanation:
10/25 = 0.4
0.4 into a percentage is 40%
Answer:
40%
Step-by-step explanation:
25/10 = 2/5 = .4 or 40%
Mr. Ramsey's science students are going on a field trip. He teaches 116 students. They will be nding in vans that seal 18 students. Hou marry vans are needed to transport the students?
Answer:
6 vans
Step-by-step explanation:
If 1 van can seal 18 students...
116 ÷ 18 = 6.4
Since it's not a whole number, we will estimate it to the nearest whole number which is 6.
Answer: you need seven vans
Suppose a vertebrate has a disease that affects its skeleton.
Which sentence best describes a difficulty the vertebrate may have?
A. It would have difficulty interpreting information.
B. It would have difficulty circulating blood.
C. It would have difficulty moving.
D. It would have difficulty breathing.
Answer:
If a vertebrate has a disease that affects it's skeleton, it'll would have difficulty circulating blood because the white blood cells would prob stop when there's a thing like Leukemia and so would the red blood cells :3
btw I love ur connie pfp- :3
Step-by-step explanation:
:3
block oi marble is in the shape of a rectangular prism. The block is going to be cut into a pyramid. The prism has dimensions of 24 inches long 36 aches wide, and 90 inches high. What is the volume of the newly cui pyramid block?
24*36*90=77760 inches, but put into feet that would be 6480 ft cubed.
Linda finished her chemistry homework in 1/5 hours. Then she completed her math assignment in 2/3 hours. What was the total amount of time Linda spent doing these two assignments
Answer: 52 minutes
Change denomniators by multiplying by 5 and 3
1/5 x 3 = 3/15
2/3 x 5 = 10/15
Add
3/15 + 10/15 = 13/15
Multiply by 4 to get minutes
13/15 x 4 = 52/60
Answer:
52 minutes
Step-by-step explanation:
Chemistry hw: 1/5 x 60 min=12 min
Math assignment: 2/3 x 60 min = 40 min
Total time: 12 min + 40 min = 52 min
Is 75 divisible by 3?
Answer: yes
Step-by-step explanation:
The measure of EFH is twice the measure of GFH. What is the
degree measure of GFH?
I NEED HELP ASAP
Answer:
30° = m∠GFH
Step-by-step explanation:
Since ∠EFH and ∠GFH are complementary, the sum of their measures i 90.
Let x = m∠GFH
2x = m∠EFH
m∠GFH + m∠EFH = 90
x + 2x = 90
3x = 90
x = 30° = m∠GFH
Answer: 30
Step-by-step explanation: qu i z i zz
can someone help with getting the equation?
Answer:
y = -2x² + 8x + 10
Step-by-step explanation:
let's adjust the coordinates of vertex to a whole number: (2 , 17.75) to (2 , 18)
Quadratic equation: y = ax² + bx c or y = a(x-h)² + K (h,k) is the vertex
y = a (x-2)² + 18
a = (y-18) / (x-2)² = (16-18) / (1-2)² = -2 : calculate use point (1 , 16)
y = -2 (x-2)² + 18
y = -2x² +8x + 10
in the accompanying diagram of the unit circle, the ordered pair _ represents the point where the terminal side of 0 intersection in the unit circle
The ordered pair of a unit circle is represented as:
[tex](x,y) \to (\sin(\theta),\cos(\theta))[/tex]
The point where the terminal side of [tex]\tehta[/tex][tex]\theta[/tex] intersect with the unit circle is: 240
The given parameter can be represented as:
[tex](x,y) \to (-\frac{\sqrt 3}{2},-\frac{1}{2})[/tex]
This means that:
[tex]\sin(\theta) = -\frac{\sqrt 3}{2}[/tex]
[tex]\cos(\theta) = -\frac{1}{2}[/tex]
Let the angle between the x-axis and the terminal side be [tex]\alpha[/tex]
So, we have:
[tex]\theta = 180 + \alpha[/tex]
Using [tex]\cos(\theta) = -\frac{1}{2}[/tex]
The equation becomes
[tex]\cos(180 + \alpha) = -\frac{1}{2}[/tex]
Apply cosine formula
[tex]\cos(180)*\cos(\alpha) - \sin(180)*\sin(\alpha) = -\frac{1}{2}[/tex]
[tex]-1*\cos(\alpha) - 0*\sin(\alpha) = -\frac{1}{2}[/tex]
[tex]-1*\cos(\alpha)= -\frac{1}{2}[/tex]
Divide both sides by -1
[tex]\cos(\alpha)= \frac{1}{2}[/tex]
Take arccos of both sides
[tex]\alpha= \cos^{-1}(\frac{1}{2})[/tex]
[tex]\alpha= \cos^{-1}(0.5)[/tex]
[tex]\alpha= 60[/tex]
Recall that:
[tex]\theta = 180 + \alpha[/tex]
[tex]\theta = 180 +60[/tex]
[tex]\theta = 240[/tex]
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The sun of the first 3 terms of an arithmetic sequence is 21 while their product is 315 determine these three terms?
Answer:
The terms of the sequence are x=5 and a=2:
[tex] x + (x + a) + (x + 2a) = 21 [/tex] → [tex] 5 + (5 + 2) + (5 +2*2) = 21 [/tex]
[tex] x*(x + a)*(x + 2a) = 315 [/tex] → [tex] 5*(5 + 2)*(5 + 2*2) = 315 [/tex]
Step-by-step explanation:
We can find the terms of the following sequence:
[tex] x + (x + a) + (x + 2a) = 21 [/tex]
[tex] 3x + 3a = 21 [/tex]
[tex] x + a = 7 [/tex] (1)
The product of that sequence is:
[tex] x*(x + a)*(x + 2a) = 315 [/tex] (2)
Solving equation (1) for x:
[tex] x = 7 - a [/tex] (3)
And by entering (3) into (2):
[tex] (7 - a)*(7 - a + a)*(7 - a + 2a) = 315 [/tex]
[tex] 7*(7^{2} - a^{2}) = 315 [/tex]
[tex] 343 - 7a^{2} = 315 [/tex]
[tex] a = 2 [/tex]
Now, by entering "a" into equation (3):
[tex] x = 7 - 2 = 5 [/tex]
Therefore, the terms of the sequence are x=5 and a=2.
I hope it helps you!
What is the length of AC?
B
3 ft
4 ft
03 ft
N
4 ft
M
9 ft
09 ft
O 18 ft
С
A
Answer:
18 ft
Step-by-step explanation:
18 is the only answer bigger than 9 and its obviously bigger than 9
The length of the segment AC of the triangle is AC = 18 feet
What are similar triangles?If two triangles' corresponding angles are congruent and their corresponding sides are proportional, they are said to be similar triangles. In other words, similar triangles have the same shape but may or may not be the same size. The triangles are congruent if their corresponding sides are also of identical length.
Corresponding sides of similar triangles are in the same ratio. The ratio of area of similar triangles is the same as the ratio of the square of any pair of their corresponding sides
Given data ,
Let the first triangle be represented as ΔABC
Let the second triangle be represented as ΔMBN
Now , the measure of side AM = MB
And , the measure of side CN = BN
So , the triangles are similar and corresponding sides of similar triangles are in the same ratio
Therefore , AB / MB = AC / MN
On simplifying , we get
8 / 4 = AC / 9
Multiply by 9 on both sides , we get
AC = 2 x 9
AC = 18 feet
Hence , the length of AC = 18 feet
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luis has 8 chapters to of a book to read. if she reads 2/3 of a chapter each day, how many days will it take her to finish the book?
Answer:
8/ (2/3)= 12
It will take Luisa 12 days to finish the book.
PLEASEEEEEE HELP GUYS!!!!!
Question 6
Select the option that best describes the relationship
between the variables on the scatter plot.
y
45
Negative, linear association
40
35
A
Positive, non-linear association
30
25
20
Positive, linear association
15
10
5
No association
X
05
10
15
20
25
30 35
Answer:
This is an example of positive nonlinear association
Step-by-step explanation:
So we know for a fact that the relationship between the the variables in the scatter plot is positive because its going up
The relationship is non linear because it has a curve
The given scatterplot is option C. Positive Linear Association.
Here, we have,
we know that,
Scatterplots are the plotting of set of points on a vertical axis and an horizontal axis. The shows the correlation extent between the numbers of the observed quantities.
Given is a scatterplot.
A scatterplot is positive if an increase or decrease in one of the quantity results in the corresponding increase or decrease in the other quantity.
If it is opposite, then the relation is negative.
Here, when the x value increases, y value is also increasing.
So the relationship is positive.
A scatterplot show a linear relationship, if the values are closely resembling in a line.
Here the points are closely resembling on a line.
So it is linear.
Hence the relationship is positive linear relationship.
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there two pics so plz do not make me waste my points
Answer:
top right one
Step-by-step explanation:
1. How long does it take running at a rate of 12m/s over a distance of 360m?
Step-by-step explanation:
T=D/S
D=360m
S=12m/s
360m÷12m/s
Time=30s
Please complete the table because I've seen other people ask the question but the answer we wrong.
Answer:
30-15,40-80,14-28
Step-by-step explanation:
6/3 =2 so multiply all by two but the last you divide by 2
plsss help i’ll give brainliest if you give a correct answer
Answer:
23
Step-by-step explanation:
Answer:
I'm pretty sure its 23.
Step-by-step explanation:
I subtracted 38 from 15 and got 23. Then I replaced 23 for x.
PLSSSSSSS HELP ME ANYBODY
Answer:
72-12-12-12-12-12-12
Step-by-step explanation:
Since 12*6=72 is just 12 +12 6 times/ division is just the opposite
Use the given circle. Find the length s to the nearest tenth.
A) 3.1 m
B) 6.3 m
C) 2.0 m
D) 12.6 m
Answer:
Step-by-step explanation:
Answer: Hi there the answer is:
B.) 6.3
Step-by-step explanation:
SOMEONE ANSWER FASTT !!
*create an equation for this situation. Use the equation to solve the problem. (Algebra)
Some Girl Guides are raising money for their jamboree. Their goal is to raise $1000, They already have $232 from the bake sales. To raise the remainder, they are planning a walk-a-thon. if each person walking raises $24, how many walkers will the Girl Guides need to reach their goal?
Answer:
The answer iz 32 walkers.
Step-by-step explanation:
the equation would be 232+24x
The Girl Guides would need 32 walkers to reach their goal
232+24×32=1000
Which expression is half as large as the sum of 464646 and 42?42?42, question mark
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
(46+42) \div 2(46+42)÷2left parenthesis, 46, plus, 42, right parenthesis, divided by, 2
(Choice B)
B
2 \div(46+42)2÷(46+42)2, divided by, left parenthesis, 46, plus, 42, right parenthesis
(Choice C)
C
2 \times (46+42)2×(46+42)2, times, left parenthesis, 46, plus, 42, right parenthesis AND LOOK AT SCREENSHOT
List all possible rational zeros
f(x) = x3 – 5x2 + 2x – 10. Then determine which, if any, are zeros.
Answer:
x = 5
Step-by-step explanation:
f(x) = x^3 – 5x^2 + 2x – 10
p/q, q must divide a_n=1 and p must divide a_0= -10
only 1 divide 1, q=1
1, 2, 5, 10 divide -10
possible rational roots:
1, 2, 5, 10
f(1) = -12
f(2) = -18
f(5) = 0
f(10) = 510
zeros: x = 5
Evaluate the expression 8 +3 +(-12) +4=