GCF=4
4(4x^2/4+-28x/4+-32f/4)
=4(x^2-7x-8f)
Hello,
[tex]4x^2-28x-32\\\\=4(x^2-7x-8)\\\\=4(x^2-8x+x-8)\\\\=4[x(x-8)+1(x-8)]\\\\=4(x-8)(x+1)\\[/tex]
AB = 20 cm, m∠A = 30°, and m∠C = 45°. Express the number of centimeters in the length of BC in simplest radical form.
Answer:
Step-by-step explanation:
x/Sin30 = 20/sin45 multiply both sides by sin30
x = 20*sin30 / sin45
sin30 = 1/2
sin45 = 0.7071
x = 20*1/2 / 0.7071
x = 10 / 0.7071
x = 10 * sqrt(2)
can you explain it please and which method is correct?
Answer:
The second one (answer of 3), but the other ones could've worked, they were just calculated wrong.
Step-by-step explanation:
Here's why each one did or didn't work:
First answer- you had the right idea by cancelling out the two in the denominator, however if you're going to divide 2, you have to divide it from everything in the equation. Meaning you would divide 4 by 2 to get 2, and then add the 1 + 2 to get final answer 3.
Second answer- since you added the numerator separately and then did the basic division, this worked.
Third one- similarly to the first one, you would have to also divide the 2 by 2 to get 1, then adding 1 + 2 to get 3.
Find the midpoint of the line segment with end coordinates of:
(
−
2
,
−
4
)
and
(
−
1
,
−
5
)
Give coordinates as decimals where appropriate
Answer:
Step-by-step explanation:
The Midpoint formula is
[tex]M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex] where the x's and y's come from the coordinates of the endpoints. Filling in:
[tex]M=(\frac{-2+(-1)}{2},\frac{-4+(-5)}{2})=(\frac{-3}{2},\frac{-9}{2})=(-1.5,-4.5)[/tex]
What is the pH of a solution with a 1.50 × 10−9 M hydroxide ion concentration? (4 points) 0.176 5.18 8.82 9.20
Answer:
5.18
Step-by-step explanation:
This is a chemistry question. However the solution to the problem is given below:
We'll begin by calculating the pOH of the solution. This can be obtained as follow:
Concentration of Hydroxide ion [OH¯] = 1.5×10¯⁹ M
pOH =?
pOH = –Log [OH¯]
pOH = –Log 1.5×10¯⁹
pOH = 8.82
Finally, we shall determine the pH of the solution. This can be obtained as follow;
pOH = 8.82
pH =?
pH + pOH = 14
pH + 8.82 = 14
Collect like terms
pH = 14 – 8.82
pH = 5.18
Therefore, the pH of the solution is 5.18
Answer:
5.18
Step-by-step explanation:
I took the test and got it right!
im really behind in math what do i do im supposed to be in 8th going into 9th but in6th and still dont understand 6th
Answer:
Try harder at what you do. Talk to your teacher. Go to online study groups. Give me an example of a question and I will help you more.
Can someone help me with this math homework please!
Answer:
3. The number of students that rode on each bus
Step-by-step explanation:
The equation they give us is:
2b + 6 = 70
The question already tells us that in this equation:
2 is the 2 buses that the school hired
6 is the 6 leftover kids who couldn't fit on the 2 buses
The question also tells us that the 2 buses only have a total of 64 seats, so 32 seats on 1 bus (64/2 = 32).
So that means b would equal the 32 seats on 1 bus, or the number of students that rode on each bus.
Hope it helps (●'◡'●)
determine the value of x.
x=-7
x=7
x= 2.33
x=29
Answer:
where is the figure?
u should upload the figure too
Someone please help me ASAP please
Answer:
hey mate
plz mark it as brainliest
help fast pls i need it
Please help :(((((((((((((((((((((((((
jeez that looks really hard
Step-by-step explanation:
HJ = 18 and MN = 28. Solve for LK
Answer:
LK = 38
Step-by-step explanation:
MN is the midsegment, and the midsegment is the average length of the top and bottom, so:
[tex]\frac{18 + LK}{2} =28[/tex]
solve for LK:
[tex]18+LK=56\\\\LK=38[/tex]
Find the measure of the angle indicated.
1
2
4
3
151°
6
8
7
The measure of angle 7 is
Answer:
7
Step-by-step explanation:
Can someone help me with this math homework please!
Answer:
250 + 200h = 300 + 180h
200h – 180h = 300 – 250
20h = 50
H = 2.5 credit hours
Step-by-step explanation: Hope this helps and good luck :))
Solve for x
Marking brainliest
Answer:
110°
Step-by-step explanation:
Evaluate the function. f(x)=3x^2 −4x Find f(−1)
Answer:
7
Step-by-step explanation:
evaluate the function means substitute x=-1 and calculate
f(x) = 3x²-4x
f(-1) =f(x=-1) = 3(-1)²-4(-1) =3+4 =7, because (-1)²=1 and -4(-1) =4
One circle has a circumference of 12π cm. Another circle has a circumference of 32π cm. What is the ratio of the radius of the smaller circle to the radius of the larger circle?
Options:
A: 3:8
B: 8:3
C: 1:3
D: 3:1
3:8
The ratio of small circle
12:32
If we divide both of them by 4 we get 3:8
4.5 as a complex fraction
Answer:
9/2
Step-by-step explanation: I think it is the answer? I really don't know.
if f(x) = 2x² +1 and g(x) = x² - 7 find (f+g) (x)
Help me find (f+g)(x) please!
Answer:
[tex](f+g)(x) = 3x^2 - 6[/tex]
Step-by-step explanation:
[tex]f(x) = 2x^2 + 1, \ g(x) = x^2 - 7\\\\(f +g)(x) = f(x) + g(x) \\\\(f+g)(x) = 2x^2 + 1 + x^2 - 7 \\\\(f+ g)(x) = 3x^2 - 6[/tex]
4 Two number cubes are rolled. The faces have the numbers 1-6 on them. The number that shows on top is recorded. What is the probability that
the same number shows on both number cubes?
OF
OS
álgebra 1 solve -2 + 11(17y + 15)
Work Shown:
-2 + 11(17y + 15)
-2 + 11(17y) + 11(15) .... distributive property
-2 + 187y + 165
187y + (-2+165)
187y + 163
algebra 2 help pls answer
Answer:
The volume of this rectangular prism equals [tex]V = 20x^{4} + 20x^{3} + 40x^{2}[/tex]
Step-by-step explanation:
In order to solve this question, we have to use the formula provided in the question to find out the volume of the rectangular prism. The formula goes as follows...
V = l × w × h (where "l" is the length, "w" is the width, and "h" is height.
From the question, we know that...
l = 4x
w = 5x
h = [tex]x^{2} + x + 2[/tex]
Now we just have to substitute all of these values into the equation and we get that...
V = l × w × h
V = 4x × 5x × [tex](x^{2} + x +2)[/tex]
[tex]V = (20x^{2})(x^{2} + x + 2)\\V = 20x^{4} + 20x^{3} + 40x^{2}[/tex]
Therefore, The volume of this rectangular prism equals [tex]V = 20x^{4} + 20x^{3} + 40x^{2}[/tex]
Which number is an integer?
A) -9,248.3
B) 35,749.087
C)10,839
D -16/17
Answer:
C) 10839
Step-by-step explanation:
.For example, 21, 4, 0, and −2048 are integers, while 9.75, 512, and √2 are not.
If a^2 -b^2 =12 and a-b=4 what is the bay of a +b
Answer:
a+b = 3
Step-by-step explanation:
a = b+4
a^2 = (b+4)(b+4) = b^2 + 8b +16=-b^2 = 12
8b=-4
b = - 1/2
a = 3.5
Which expression has a solution of 11, if m = 1?
m - 11
11 + m
14 - m
m + 10
Answer:
m+10 has the solution of 11
Surface Area of Prisms
Can someone show me how to solve and also what the formula is. Please!
Answer:
400 in.²
Step-by-step explanation:
Surface area of the triangular prism = bh + L(s1 + s2 + s3)
Where,
b = 8 in.
h = 15 in.
s1 = 17 in.
s2 = 15 in.
s3 = 8 in.
L = 7 in.
Plug in the values
S.A = 8*15 + 7(17 + 15 + 8)
S.A = 120 + 7(40)
S.A = 120 + 280
S.A = 400 in.²
20 is what percent of 52? Round your answer to the nearest tenth.
20 is about
5
% of 52.
The number x percent of 52 gives 20. Thus, the number x would be equal to 38.5.
What is the percentage?A percentage is a minimum number or ratio that is measured by a fraction of 100.
We need to find the number x percent of 52 which gives 20.
x% of 52 = 20
x/100 × 52 = 20
x = 20 × 100/ 52
x = 0.384615
convert it to a percentage by multiplying by 100
38.4615
round to the nearest tenth
38.5
Learn more about percentages;
https://brainly.com/question/13450942
#SPJ2
Which statement correctly describes the graph of ?
Answer:
I think it's c
Step-by-step explanation:
Well I believe that would mean that one coordinate would shift by five, c looks the most likely in this case.
I was actually surprised to see that statement A is correct
graphed around with desmos until I reconstructed f(x), then graphed f(x+4)
see screenshot
What is the final step in solving the inequality –2(5 – 4x) < 6x – 4? x < –3 x > –3 x < 3 x > 3
Answer:
x > 3
Step-by-step explanation:
Given the inequality :
-2(5 – 4x) < 6x – 4
Expand the equation in bracket :
-10 + 8x < 6x - 4
Collect like terms
-10 + 4 < 6x - 8x
-6 < - 2x
Divude both sides by - 2
-6 / - 2 < - 2x / - 2
3 < x
x > 3
find the area of the triangle
Answer:
Formula for area of a triangle= L*H/2
Step-by-step explanation:
Let's say your triangle has an A length of 15 and your B height is 12. You then multiply your length and height to get 180. Then you divide your answer by 2 and get 90.
Hope this helps!! :)
what is the x-intercept of the line shown below enter your answer as a coordinate pair
Answer: (-2, 0)
Step-by-step explanation: The x-intercept is the point where a line crosses or intersects the x-axis. In this case, the point is intersecting the x-axis 2 units to the left of the origin or at the point (-2, 0).
