PLEASE HELP! NO LINKS OR I WILL REPORT!! I SUCK AT ALGEBRA
Answer:
-5 and 3
Step-by-step explanation:
(-(-2) +/- √(4- (4(1)(-15))) ÷ 2
(2 +/- √64 )÷ 2
(-2+8) ÷ 2 = 3
(-2 -8) ÷ 2 = -5
Evaluate. 5! - 4! = [1]
May any math experts please help thank you
Answer:
116=1
Step-by-step explanation:
I hope this helps you!
Greyson rides his bike at a constant rate. In 30 minutes, Greyson can bike 7 miles. I need help on number 3.
Step-by-step explanation:
The answer is In the picture above
Antwan earned $9 for 1/2 of an hour of babysitting. At this rate, how much would Antwan make in 1 hour?
Answer:
$18
Step-by-step explanation:
double the value of 9 to get 18
Need help due in 20 mins
Answer: The slope is 0.
The slope is 0 because for something to have a slope, it either has to be going upward or downwards.
I need help I'm confused!
Answer:
160 and 70
Step-by-step explanation:
\frac{x-5}{x^4-2x^3}\cdot \frac{x^2-4}{x^2-3x-10} x 4 −2x 3 x−5 ⋅ x 2 −3x−10 x 2 −4
Answer:
[tex]\frac{x-5}{x^4-2x^3}\cdot \frac{x^2-4}{x^2-3x-10} = \frac{1}{x^3}[/tex]
Step-by-step explanation:
Given
[tex]\frac{x-5}{x^4-2x^3}\cdot \frac{x^2-4}{x^2-3x-10}[/tex]
Required
Solve
Express [tex]x^2-4[/tex] as difference of two squares
[tex]\frac{x-5}{x^4-2x^3}\cdot \frac{(x-2)(x+2)}{x^2-3x-10}[/tex]
Factorize [tex]x^4 - 2x^3[/tex]
[tex]\frac{x-5}{x^3(x-2)}\cdot \frac{(x-2)(x+2)}{x^2-3x-10}[/tex]
Cancel out x - 2
[tex]\frac{x-5}{x^3}\cdot \frac{x+2}{x^2-3x-10}[/tex]
Expand [tex]x^2 - 3x - 10[/tex]
[tex]\frac{x-5}{x^3}\cdot \frac{x+2}{x^2+2x-5x-10}[/tex]
Factorize:
[tex]\frac{x-5}{x^3}\cdot \frac{x+2}{x(x+2)-5(x+2)}[/tex]
Factor out x + 2
[tex]\frac{x-5}{x^3}\cdot \frac{x+2}{(x-5)(x+2)}[/tex]
Cancel out x - 5 and x + 2
[tex]\frac{1}{x^3}\cdot \frac{1}{1}[/tex]
[tex]\frac{1}{x^3}\cdot 1[/tex]
[tex]\frac{1}{x^3}[/tex]
Hence:
[tex]\frac{x-5}{x^4-2x^3}\cdot \frac{x^2-4}{x^2-3x-10} = \frac{1}{x^3}[/tex]
If an item is discounted by 5 percent, and the final price is 57, what is the original price of the item?
Answer:
$59. 85 or rounding, $60 (I AM NOT COMPLETELY SURE)
Step-by-step explanation
I changed the percentage into a decimal (.05) and then multiplied it by the final price (57). After multiplying, I got, $2.85. I then added that to the final price to get, $59.85.
LAST QUESTION!!!!!!!!!!!
segment AB had a mid point at (-1,-1). point A coordinates (3,2). what are the coordinates of B?
Answer:
Just put the opposite coordinates on the other side of the segment and thats your answer!
Step-by-step explanation:
What will be his EXTRA cost?
Answer:
??? what do you mean?
Step-by-step explanation:
mind helping a girl out? pls and thank you lol
Answer:
First box: 2
Second box: 54
Step-by-step explanation:
The ratio is 1:6.
In other words, the second column is the first column times 6.
2 x 6 = 12
3 x 6 = 12
5 x 6 = 30
9 x 6 = 54
Therefore, the first box would be 2.
The second box would be 54.
Step-by-step explanation:
ginger ale 2because everything is multiplied by 6
so 9 *6
hey cutie pls help me thank u !!
f(x)= 2x-1
g(x)=3x
h(x)=x^2 + 1
Compute the following:
Find f(3)
Choose the best answer
A)9
B)5
C)10
In the library where you work, it usually takes you 2 hours to shelve 5 carts of books. At this rate, about how many minutes should it take you to shelve 1 cart of
books?
Answer: 24 min
Step-by-step explanation:
2 hrs / 5 carts = 120 min / 5 carts
120 / 5 = 24 min / 1 cart
help i don't understand this!!
Answer:
30 cm
Step-by-step explanation:
Lucky won 500$ in a lottery she used 25% to buy candies and saved the rest how much money did she save
Answer:
$375
Step-by-step explanation:
If she spent 25%, then she saved 75%.
75% of $500 is 375. 500(0.75)
Evaluate the function at the given value if f(x)= 5x-7 find f(2)
Answer:
3
Step-by-step explanation:
f(x)=5x-7
for f(2) just put 2 in place of x
so,
f(2)=5(2)-7
f(2)=10-7
f(2)=3
Please help I need to show all work
Answer: x=-3 can you mark me brainlyest thanks
Step-by-step explanation:
3(x-6)=2x(x+3)
3x-18=3x+6x
3x-18=9x
-3x -3x
-18=6x
__ __
6 6
x=-3
Determine whether the point (2, 0) is a solution to the system of equations. Explain
your reasoning in complete sentences.
Answer:
(2,0) IS NOT a solution to the system of equations because at that point the lines do not intersect. At (2,0) there's not even a line
Step-by-step explanation:
Luke surveyed his friends to see how many minutes it takes each of them to get to school in the moming. The results are in the list below.
6, 11, 14, 4, 8, 8, 10, 9, 14
What is the mean of the data? (Round to the nearest tenth if necessary)
Answer:
9.3
Step-by-step explanation:
The real answer is 9.33333 but I did as you said and rounded to the nearest tenth.
I got this answer by adding up 6, 11, 14, 4, 8, 8, 10, 9, 14 and I got 84. Then I divided 84 by 9 and got 9.33333.
Sorry if I'm wrong.
Please mark me as Brainliest.
The area of the triangle below is 6.75 square meters. What is the length of the base?
Answer:
4.5
Step-by-step explanation:
I hope this helps, sry don't have enoug h time to explain
find the value of tan30+cot30+sin60
Hello!
This is a problem about relating values of the Unit Circle.
First, we need to figure out the specific "points" of each angle measure of 30 and 60.
For the angle measure 30, the point will be [tex](\frac{\sqrt{3}}{2},\frac{1}{2})[/tex].
For the angle measure 60, the point will be [tex](\frac{1}{2},\frac{\sqrt{3}}{2})[/tex].
The tangent value of a point will be its [tex]y[/tex] value over its [tex]x[/tex] value.
[tex]\frac{\frac{1}{2}}{\frac{\sqrt{3}}{2}}=\frac{1}{2}*\frac{2}{\sqrt{3}}=\frac{1}{\sqrt{3}}=\frac{\sqrt{3}}{3}[/tex]
The cotangent value of a point will be the reciprocal of the tangent value, which we found previously.
[tex]\frac{3}{\sqrt{3}}=\frac{3\sqrt{3}}{3}=\sqrt{3}[/tex]
The sine value of a point will be the [tex]y[/tex] value of the point.
[tex]\frac{\sqrt{3}}{2}[/tex]
So the values we have so far are [tex]\frac{\sqrt{3}}{3}+\sqrt{3}+\frac{\sqrt{3}}{2}[/tex]
Now we have to find the LCD to add these together, which in this case would be 6.
[tex]\frac{2\sqrt{3}}{6}+\frac{6\sqrt{3}}{6}+\frac{3\sqrt{3}}{6}[/tex]
Which adds up to [tex]\frac{11\sqrt{3}}{6}[/tex], which is in simplest radical form.
Hope this helps!
o is the centre of the circle if ab equals 6 units oc perpendicular to ab with m on ab, and mc equal one unit find the length of om
Ted is making a red and yellow quilt with dimensions of 72 in by 90 in is how many square feet of fabric does he need
Answer:
https://socratic.org/answers/327824 click on the link
What is the volume, in cubic in, of a rectangular prism with a height of 11in, a width
of 20in, and a length of 19in?
The volume of the rectangular prism is 4180in^3.
What is rectangular prism?"A rectangular prism can be defined as a 3-dimensional solid shape which has six faces that are rectangles".
For the given situation,
Length of the rectangular prism = 19 in
Width of the rectangular prism = 20 in
Height of the rectangular prism = 11 in
The formula for volume of the rectangular prism,
[tex]V=l[/tex] × [tex]w[/tex] × [tex]h[/tex]
On substituting the values,
⇒[tex]V= 19[/tex] × [tex]20[/tex] × [tex]11[/tex]
⇒[tex]V=4180[/tex]
Thus the volume of the rectangular prism is [tex]4180 in^{3}[/tex].
Learn more about rectangular prism here
https://brainly.com/question/21812790
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At Kolbens Building, 3 out of every 7 employees use public transportation. There are 9,800 employees at the building. How many use public transportation?
I really need help on this
Answer:
I think the answer is 4800.
Step-by-step explanation:
Usually people would use 1/10 or anything like that, but here 3/7 was used. in order to find 10 percent you would divide by 10, correct, well I did the same with 7. (because you must find 1/7) The question was 3/7, so I multiplied 1400 by 3, and my answer was 4800. (sorry if this wasn't understandable, im the the best at explaining things)
Solve for x show your work
Answer: The answer is -5
Step-by-step explanation:
4x - 3 = 6x + 7
- 7 -7
4x - 10 = 6x
-4x -4x
-10 = 2x
---------------
2
-5 = x
Answer:
x = -5
Step-by-step explanation:
4x - 3 = 6x + 7
Add 3 to both sides to isolate the variable:
4x = 6x + 10
Subtract 6x from both sides to keep x on 1 side:
-2x = 10
Divide by -2 to have the base value of x:
x = -5
!!!! HELP PLEASE !!!!!
Answer:
C) x² + 2x - 6
Step-by-step explanation:
add 2x +1 to x² - 7
Marco got 15 questions wrong on his 30-question test. What is his grade as a percent?
Answer:
15
Step-by-step explanation:
The grade percentage of Marco is 50%.
What is percentage?A percent is a dimensionless number, meaning that it has no units of measurement, since it represents a part of whatever whole is being measured.
Given that, Marco got 15 questions wrong on his 30-question test.
We need to find his grade as a percent,
So,
Since he got 15 answers wrong,
Therefore, his correct answers = 30-15.
That mean his grade in marks = 15
Now, his grade in percent = 15/30 x 100 = 50%
Hence the grade percentage of Marco is 50%.
Learn more about percentage click;
https://brainly.com/question/29306119
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solve:
4(n-7) -2 (n+3)-15n
Answer:
solved
Step-by-step explanation:
4n-28 -2n -6 -15n
-13n-34
-(13n+34)
Tomás is cutting a board into 1/6 yard pieces. If the board is 3 yards long, how many pieces can Tomás cut?