Answer:
A
Step-by-step explanation:
[tex]x = ((-b +/- (b^2 - 4ac)) / 2a[/tex]
The degree in the equation is 2.
The quadratic formula can be used to solve an equation only if the highest degree in the equation is 2.
Answer:
A. 2
Step-by-step explanation:
The quadratic formula is:
[tex]$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$[/tex]
An equation of the form [tex]ax^2+bx+c=0[/tex] is only quadratic when [tex]a \neq 0[/tex], therefore it is linear.
Also, by definition, a quadratic equation is an equation where the highest exponent is a square.
The altitude to the hypotenuse of a right triangle is the geometric mean between the segments on the hypotenuse.
always
sometimes
never
Answer: always
Step-by-step explanation:
A right triangle is a kind of triangle with one right angle.
Side opposite to right angle is known as hypotenuse.Other two sides is known as legs.A theorem of right triangle says that :-
When the altitude drawn from the right angle to the hypotenuse splits the hypotenuse into two sections of segments. Then the length of each leg of the right triangle is the geometric mean of the lengths of the hypotenuse and the segment of the hypotenuse that is adjacent to the leg.Hence, the statement "The altitude to the hypotenuse of a right triangle is the geometric mean between the segments on the hypotenuse." is always true.
Thus , the correct answer is "always".
Your answer should be always :)
(I know this has already been answered, but it can be reassuring to some people that the answer is correct ^-^)
Select the correct answer.
In circle C, RT= 6, RS = 10, and QT= 3. What is the length of line segment PQ?
Answer:
Therefore, the answer of PQ is 20.Step-by-step explanation:
In circle C, RT= 6, RS = 10, and QT= 3. What is the length of line segment PQ?
In circle C, RT= 6,
RS = 10, and
QT= 3.
What is the length of line segment PQ?
[tex](RT) (RS) = (QT) (PQ)[/tex]
so plug that in
[tex](6)(10)=(PQ)(3)[/tex]
[tex](6)(10)=(PQ)(3) \\\\60=(PQ)(3)\\\\PT=\frac{60}{3} \\\\PQ=20[/tex],
Therefore, the answer of PQ is 20.
In the grade 9, the ratio of girls to boys is 17:8. What percent of the grade 9 are boys?
Answer:
32%
Step-by-step explanation:
Let's say there are 17 girls and 8 boys. So there is 25 people in total.
8/25 = 32/100=32%
Evaluate the expression 4^3 Divided by (7-3)x2 need fast will mark brainliest
Answer:
First parentheses
7-3=4
4^3 / 4 x 2
Next exponents
do 4^3
4 x 4 x 4 = 64 x 4 = 256
256 / 4 x 2 is left
256 / 4 = 64
64 x 2 = 128
128
Hope this helps
Step-by-step explanation:
helppppp plsssss helpppp plssss
Answer:
Measure of the side, x = 5.25 units
Step-by-step explanation:
Figure B is a scale image of figure A.
That means figure B is an image and figure A is a pre-image.
Scale factor for the dilation from figure A to figure B = 1.75
Scale factor = [tex]\frac{\text{Side of image B}}{\text{Side of pre-image A}}[/tex]
1.75 = [tex]\frac{x}{3}[/tex]
x = 1.75 × 3
x = 5.25 units
Therefore, measure of the side figure B is 5.25 units.
8. Find the measure of BAC. The figure is not drawn to sale. (1 point)
570
57°
28.5°
33°
114
The calculation: 5- (-11)
(Five minus negative eleven)
There is a photo included, please help! Thanks in advance!
Answer: B
Step-by-step explanation:
If there is a change in something it normal means you subtract 1 number from another.
In this case the two values were 5 and -11.
At midday for answer b, it was 5 and at midnight it -11. It then wants to know the change in temperature which would result in an expression of 5-(-11).
What is the median of 0, 1, 2, 6, 6?
Answer:
2
Step-by-step explanation:
0, 1, 2, 6, 6
The median is the middle number
0, 1, 2, 6, 6
There are 5 numbers and 2 is the middle number so 2 is the median
Answer:
Median is 2
Step-by-step explanation:
Median: the middle
0,1,2,6,6
2 because you cancel the number from left to right
what are the solutions to the quadratic equation 9x(2) + 64 = 0?
and
what is the factored form of the quadratic expression 9x(2) + 64?
Answer:
Solution of given quadratic equation is
[tex]$ (\frac{8i}{3}, -\frac{8i}{3} ) $[/tex]
Step-by-step explanation:
The given quadratic equation is
[tex]9x^2 + 64 = 0[/tex]
The general form of the quadratic equation is given by
[tex]ax^2 + bx + c = 0[/tex]
Comparing the general form with the given quadratic equation
[tex]a = 9\\b = 0\\c = 64[/tex]
The solutions of the quadratic equation is given by
[tex]$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$[/tex]
Substitute the values of a, b and c
[tex]$x=\frac{-0\pm\sqrt{0^2-4(9)(64)}}{2(9)}$[/tex]
[tex]$x=\frac{\pm\sqrt{-2304}}{18}$[/tex]
[tex]$x=\frac{\pm48i}{18}$[/tex]
[tex]$x=\frac{\pm8i}{3}$[/tex]
[tex]$x=\frac{8i}{3}$[/tex]
and
[tex]$x=-\frac{8i}{3}$[/tex]
Where i represents iota which means that the given quadratic equation has complex roots.
So the solution of given quadratic equation is
[tex]$ (\frac{8i}{3}, -\frac{8i}{3} ) $[/tex]
The factored form of the given quadratic equation is
[tex]$ (x+ \frac{8i}{3}) (x- \frac{8i}{3}) = 0 $[/tex]
The line y−6=2(x+4) passes through which point?
Can somebody answer this !!!
Answer:
-5 ≤x≤5
Step-by-step explanation:
The domain is the values that are allowed for the input
As we can see from the graph, X can be from -5 to 5 inclusive
-5 ≤x≤5
Mr. Jones is taking his family to see a play. There are 10 people going to the play, and they
take 2 cars. Mr. Jones pays $5.50 for parking for each car. He pays the same price for each
ticket. Mr. Jones is charged a total of $142.00 for tickets and parking. What is the price of
each ticket to the play?
A. $6.55
B. $13.10
C. $13.65
D. $14.20
mindy opened a bag of skittles and recorded the colors and their frequencies, as shown in the table below. What is the RELATIVE FREQUENCY, rounded to the NEAREST HUNDREDTH, for the number of RED candies?
Answer:
14%
Step-by-step explanation:
first, you would have to find how many skittles there are in total. You would add the red, blue, green, and purple skittles together and get 72. Next you would take the number of red skittles (10) and put it over the number of total skittles (72) and get the fraction 10/72. Lastly divide 10 by 72 and get the decimal .13888889 which would round up to .14 move the decimal over 2 places and get 14%
hope this helped :)
What is the area of the kite?
6 ft
14 ft
Answer:
84ft
Step-by-step explanation:
6 * 14 = 84
what is mZC
a. 77
b. 180
c. 48
d. 110
Answer:
Step-by-step explanation:
An icicle is in the shape of an inverted cone with a diameter of 9 mm and a height of 120 mm. The icicle drips at a rate of 75 mm
per minute. How long will it take the icicle to completely melt? Use 3.14 for 7. Round the answer to the nearest tenth.
0 5.1 minutes
7.5 minutes
15.1 minutes
033.9 minutes
Answer:
Step-by-step explanation:
D 33.9 minutes I just took the test and got it right
Answer:
d
Step-by-step explanation:
-5(x+6)=15 what is the answer?? will give brainliest
Answer:
the answer will be x=-9
Step-by-step explanation:
-5(x+6)=15
-5x-30=15
-5x=15+30
-5x=45
×=-9
Answer:
[tex]x=-9[/tex]
Step-by-step explanation:
[tex]-5(x+6)=15[/tex]
Use the distributive property.
[tex]-5x-30=15[/tex]
Add [tex]+30[/tex] on both sides of the equation.
[tex]-5x=15+30[/tex]
[tex]-5x=45[/tex]
Divide [tex]-5[/tex] on both sides of the equation.
[tex]x=45/-5[/tex]
[tex]x=-9[/tex]
For all negative numbers n, y = nx passes through the same quadrants as
y=-3x.
Answer:
Step-by-step explanation:
so i think its true
A small business takes out a loan for $14,000 at 7% simple interest over the course of 4 years. What is the monthly payment?
a)$291.67
b)$326.67
c)$373.33
d)$408.33
solve for X: 5/6 = 10/2x-3
x=___
Answer:
x = 7.5
Step-by-step explanation:
5/6 = 10/2x-3
Solve using cross products
5 ( 2x-3) = 6*10
Divide each side by 5
2x-3 = 6*10/5
2x-3 =12
Add 3 to each side
2x-3+3 = 12+3
2x =15
Divide each side by 2
2x/2 = 15/2
x = 7.5
A local maximum of the function f(x) occurs for which x-value?
A 2-column table with 6 rows. The first column is labeled x with entries negative 4, negative 3, negative 2, negative 1, 0, 1. The second column is labeled f of x with entries 16, negative 2, 0, 6, 0, negative 2.
–4
–3
–2
–1
Answer:
There is a local maximum at the point (-1,6), therefore, for x = -1
Step-by-step explanation:
Notice that the function adopts values smaller than 6 to the left of x = -1, and to the right of it:
(-3, -2), (-2, 0) to the left of x = -1 where the function's value is 6
and (0, 0), and (1, -2) to the right of x = -1
therefore, it looks like (-1, 6) is a maximum, that is for x = -1, where the function renders a value of 6.
Answer:
D is the correct answer
Which products result in a sum or difference of cubes? Check all that apply. (x – 4)(x2 + 4x – 16) (x – 1)(x2 – x + 1) (x – 1)(x2 + x + 1) (x + 1)( + x – 1) (x + 4)(x2 – 4x + 16) (x + 4)(x2 + 4x + 16)
Answer:
(x – 1)(x^2 + x + 1) = x^3 - 1.
(x + 4)(x^2 - 4x + 16) = x^3 + 64.
Step-by-step explanation:
The identities are:
(a - b)(a^2 + ab + b^2) = a^3 - b^3 and
(a + b)(a^2 - ab + b^2) = a^3 + b^3
Answer:
C and E
Step-by-step explanation:
what is the answer to (6x-7)
Given as 6x-7=0
the value for x will be 7/6
Answer:
7/6 or 1.666666666
Step-by-step explanation:
6x-7=0
6x=7
x=7/6
all rectangles have four right angles and opposite sides that are equal in length and parallel.
Which of these quadrilaterals are rectangle ?
Answer:
1 not rectangle
2 not rectangle
3 rectangle
What must be a factor of the polynomial function fx) graphed on the coordinate plane below?
Answer:
C. x+2
Step-by-step explanation:
a factor of polynomial is where polynomial = 0
in this case it's -2 so (x+2)
If the spinner is spun 120 times, how many times would you expect it to land on red or orange?
A) Around 24 times
B) Around 48 times
D) exactly half of the time
Answer:
D
Step-by-step explanation:
Answer:
around 48 times
Step-by-step explanation:
the total is 5
the red and orange equals to 2
2/5 times 120
240/5
6) A pyramid with a TRIANGULAR base has a volume of 240 cubic inches and a height of 15 inches. The base of
the triangular base is 8 inches. Find the height of the triangular base. (4 pts)
Answer: 12 inches
Step-by-step explanation:
Vol = 1/3 x b x h
240 = 1/3 x b x 15
b = 240/5 = 48 in = area of triangle base
Area = 1/2 x b x h
48 = 1/2 x 8 x h
h = 48/4 = 12 inches
19 is the top and 20 is the bottom what is 19 in a fraction
Answer:
95%
Step-by-step explanation:
you meant what is 19 in a percentage, it means that it is 19/20. So you do 19 divided by 20. Do the math and get .95 ..95=95% .You get this by multiplying te decimal by 100 to find the percentage
Answer:
95%
When it says in percent, just times the fraction by 100
19/20 * 100= 95%
Or ...
You can change it to a decimal and move the decimal point back 2 spaces.
.95 = 95%
- Quinn <3
what is the simplified form of 4.2x + 1.5x yall already now imma mark brainliest
Answer:
5.7x
Step-by-step explanation:
Addition, 4.2x+1.5x=5.7x
Answer:
the ans is 5.7 x
..........
Find the HCF of 64 and 80.
Answer:
64=2✖️2✖️2✖️2✖️2✖️2
80=2✖️2✖️2✖️2✖️2✖️5
Common factors=2✖️2✖️2✖️2
As HCF= Product of common factors
HCF =2✖️2✖️2✖️2
HCF=16
Step-by-step explanation:
I hope this will help you:)
Answer:
Its 16.2
Step-by-step explanation:
