Answer:
q = -4
q = -5/9
Step-by-step explanation:
Hi!
To solve this question, we can use the zero product property.
The zero product property states that if one factor is equal to 0, then the whol equation is equal to 0.
We have (q+4)(9q +5) = 0
That means either q + 4 = 0, or 9q + 5 = 0.
Solve:
q + 4 = 0q = -49q + 5 = 09q = -5q = -5/9We can check both cases:
(-4 + 4)(-36 + 5) = 0
0(-31) = 0
0 = 0
(-9/5 + 4)(9(-5/9) + 5) = 0
(2.2)(-5 + 5) = 0
(2.2)0 = 0
0 = 0
Help and steps please
Answer:
30
Step-by-step explanation:
We know that the very bottom side is 2 because 6-4 is 2. Then add up all the sides which equals 30
please help I'm bad at math i don't understand
Answer:
a) Vertex is at (-3, -1)
b) y-intercept is at (0,8)
c) x intercept is at (-4,0) and (-2,0)
d) x=-3
Step-by-step explanation:
The vertex of a parabola is the lowest or highest point, implying that all points are reflected across it. It's the only y value that doesn't have a corresponding pair.
For example, -1 and 1, -3 and 3, and so on.
The vertex is at (-3,-1) because it is the sole point without a corresponding y value (-3,-1)
The y-intercept is where the parabola meets the y axis or when the x value equals 0. To determine the y-intercept, simply find when x = 0.
intercept y: (0,8)
The x-intercepts are the same as the y-intercepts; you must determine where the parabola crosses the x-axis or when y = 0.
x intercept 1:(-4,0)
x intercept 2: (-2,0)
The axis of symmetry is also the x coordinate of the vertex which is 3 so
x = 3
I don't really get alot of help but help me on this one Find the volume pls
Answer:
C. 112 cubic inches
Step-by-step explanation:
Two solve this weird-looking house problem, first let's see what it is made of.
Split the area into two volumes.
V = 1/3lwh is the volume for a triangular prism and V = lwh is the volume for a rectangular prism.
Let's now solve for the triangular prism.
The length and width are the same as that of the cube. The cube's length and width is 4 in.
V = 1/3(4)(4)(6) = 32 cubic inches
Now Solve for the cube.
V = lwh = 4(4)(5) = 80 cubic inches
Total Volume = 80 + 32 = 112 cubic inches
Instructions: Find the missing side lengths. Leave your answers as radicals in simplest form.
Answer:
x = 38 , y = 19
Step-by-step explanation:
using the tangent ratio in the right triangle and the exact valu
tan30° = [tex]\frac{1}{\sqrt{3} }[/tex] , then
tan30° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{y}{19\sqrt{3} }[/tex] = [tex]\frac{1}{\sqrt{3} }[/tex] ( cross- multiply )
[tex]\sqrt{3}[/tex] × y = 19[tex]\sqrt{3}[/tex] ( divide both sides by [tex]\sqrt{3}[/tex] )
y = 19
--------------------------------------------------
using the cosine ratio in the right triangle and the exact value
cos30° = [tex]\frac{\sqrt{3} }{2}[/tex] , then
cos30° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{19\sqrt{3} }{x}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex] ( cross- multiply )
[tex]\sqrt{3}[/tex] × x = 38[tex]\sqrt{3}[/tex] ( divide both sides by [tex]\sqrt{3}[/tex] )
x = 38
Giving right answer branleist
Answer:
Ans = 0.75
Explanation:
Let's use m.
m = 6 / 8 = 3 / 4 = 0.75
Answer:
Slope is 3/4
Step-by-step explanation:
Each point given is an x and a y, like this (x, y)
For the top number (numerator) of your answer, subtract the y's from both points.
On top: 9 - 3
On the bottom (denominator) subtract the x's.
Below: 5 - -3
So slope is:
9-3 / 5 - -3
6/8
Simplify
6/8
= 3/4
The slope is 3/4.
Suppose that Hubble's constant were H0 = 36 km/s/Mly (which is not its actual value). What would the approximate age of the universe be in that case?
Express your answer in years to two significant figures.
I got 26. 95 and it was wrong
With the Hubble's constant H₀, the estimated age of the universe would be:
T = 8,332,452,617.49 years.
How to get the age of the universe?
We know that the age of the universe is something near to the time the galaxies needed to reach their current distance:
T = D/V
And by Hubble's law, we know that:
V = H₀*D
Then we can write:
T = D/(H₀*D) = 1/H₀
So, we can say that the age of the universe is something near the inverse of Hubble's constant.
Then we have:
T = 1/(36 km/s*Mly) = (1/36) s*Mly/km
Now we need to perform the correspondent change of units.
1 Mly = 1 million light-years
Such that:
1 ly = 9.461*10^12 km
Then 1 million light-years over km is equal to:
1 Mly/km = 1,000,000*(9.461*10^12 km)/km = 9.461*10^18
Then we can replace it:
T = (1/36) s*Mly/km = (1/36)*9.461*10^18 s
T = 2.628*10^17 s
This is the age in seconds, but we want it in years.
We know that:
1 year = 3.154*10^7 s
Then to change the units, we compute:
T = (2.628*10^17 s/3.154*10^7 s)* 1 yea
T = 8,332,452,617.49 years.
If you want to learn more about Hubble's constant, you can read:
https://brainly.com/question/9770981
Asli has a number of coins in a box. There are thirty-four 25 cent coins,
a
eighty-five 10 cent coins, seventy-two 5 cent coins and nine 1 cent coins.
As a percentage, write down the ratio of:
a) 25 cent coins to the total
b) 10 cent coins to 25 cent coins
c) 1 cent coins to 5 cent coins
d) the total number of coins to 1 cent coins.
Answer:
Step-by-step explanation:
No. of 25 cent coins = 34
No. of 10 cent coins = 85
No. of 5 cent coins= 72
No. of 1 cent coins = 9
Total sum of coins = 200
Percentage of 25 cent coins = (34/200)*100
= 17 %
A pencil has a cross-sectional diameter of 0.7 cm, a length from the end of the eraser to the beginning of the sharpened taper of 17 cm, and a length from the beginning of the taper to the sharpened point of 1.5 cm. Find the total surface area of the pencil, giving your answer correctly rounded to the nearest cm2 (do not include units).
Answer:
39 cm ²
Step-by-step explanation:
A set of pens sells for $3. 75 and costs $1. 50 to make. Thirty percent of the profit (the difference between the purchase price and the amount it costs to make) from each set of pencils goes to a school. If 600 sets are sold, what is the amount of money that will go to the school?
Answer:
$405
Step-by-step explanation:
3.75-1.50=2.25
2.25 x 600 = 1350
30 % of 1350 is 405 so it would equal $405
This year, 432 middle school students ordered a yearbook. So far, 398
yearbooks have been distributed.
Which of the following will help find how many more students still
need a yearbook?
x +398 = 432; x = 36
X + 398 = 432; x = 34
2 – 398 = 432; x = 830
2 – 398 = 432; x = 34
Answer:
B is the answer
Step-by-step explanation:
This answer is reasonable because it shows that 398 + x (the amount that still has to be distributed) equal the total amount of middle school students who ordered a year book.
total books = 432
total books distributed = 398
total books needed = x
equation:
[tex]\tt x+398=432;x=34[/tex]
The main advantage of boxplots over stemplots and histograms is:.
The main advantage with boxplots (aka box and whisker plots) is that we can spot the five number summary very quickly. The five number summary consists of these items:
MinQ1 = first quartileMedian (sometimes referred to as Q2)Q3 = third quartileMaxThe min and max are the left-most and right-most tips of the whiskers, assuming there aren't any outliers. They are the smallest and largest items.
The left and right edges of the box represent Q1 and Q3 in that order. The vertical line inside the box is the median. The vertical line does not have to be at the exact center of the box.
PLEASE HELP! FIFTEEN BRAIN POINTS :D
Answer:
Pretty sure its 540
Step-by-step explanation:
the sum of ages of Jamal and his father is 40 years.After 4 years,the age of the father will be triple the age of his son.Find the age of Kamal and his father
Answer:
The age of Jamal is 8 years.
And the age of his father is 32 years.
Step-by-step explanation:
=> let the age of Jamal be x and his father's age be y
=> so , A.T.Q ,
x+y = 40....i)
Find the value of y from here , that's y = 40-x .....
Now, After 4 years ,
=> 3(x+4) = (y+4)
=> 3x+12 = y+4
=> 3x+8 = y ...ii)
putting the value of y in equation ii)
=> 3x+8 = 40-x
=> 3x+x = 40-8
=> 4x = 32
=> x = 8
now ,
=> y = 40-x
=> y = 40-8
=> 32
The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 12 miles? Round your answer to the nearest unit. A. 205 units b. 222 units c. 248 units d. 186 units.
The intensity of soundwave at a distance of 12 miles is 222.22 miles.
What is Directly proportional and inversely proportional?
The link between two variables whose ratio is equal to a constant number is known as a direct proportional, while the multiplication of two variables whose ratio is equal to a constant number is known as an inversely proportional.
It is given that the intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. therefore, the relation between the intensity of the radio wave(I) and distance(r) can be written as,
[tex]I\propto \dfrac{1}{r^2}\\\\\\I=k \dfrac{1}{r^2}[/tex]
Now, it is stated that the intensity of the radio wave at a distance of 2 miles is 8000 units, therefore, substituting the value in the above equation to get the value of the constant,
[tex]I=k\dfrac{1}{r^2}\\\\8000=k\dfrac{1}{2^2}\\\\8000=k\dfrac{1}{4}\\\\k = 8000 \times 4 = 32,000\rm\ units[/tex]
Thus, the value of the constant k is 32,000 units, and the equation of the intensity of the radio signal can be written as,
[tex]I=\dfrac{32,000 }{r^2}[/tex]
Further, the intensity of soundwave at a distance of 12 miles will be equal to,
[tex]I=\dfrac{32,000 }{r^2}\\\\I=\dfrac{32,000 }{12^2}\\\\I=\dfrac{32,000 }{144}\\\\I = 222.22\rm\ units[/tex]
Hence, the intensity of soundwave at a distance of 12 miles is 222.22 miles.
Learn more about Inversely proportional:
https://brainly.com/question/2548537
Please help me Please This needs to be done ASAP
Answer:
ACROSS
1. LINE
6. LINE SEGMENT
8. OBTUSE ANGLE
11. RIGHT ANGLE
12. DOT
DOWN
2. ACUTE ANGLE
3. PLAIN
4. PROTECTOR
5. VERTEX
6. STRAIGHT LINE
7. PLANE
9. STRAIGHT ANGLE
10. ANGLE
Step-by-step explanation:
I HOPE IT WILL BE HELPFULTHXa city council surveyed two population samples to determine whether their community would support the construction of bike paths. the results: general population, 1000 surveyed , 318 is number supporting bike paths. population that rides bikes, 400 surveyed, 214 is number supporting bike paths, what is the conclusion of the survey results
What is the grade range for junior high school?
Answer:
11 graders are Juniors in High School
Step-by-step explanation:
Secondary or high schools enroll students in the upper grades, generally 9-12 with variations.
Pls, choose me as brainliest!
What two numbers multiply to -42 but also add up to -11
Answer:
3 and -14
Step-by-step explanation:
Find the factors of -42 and add them to see what they give:
1 × -42 = 42, -41
2 × -21 = 42, -19
3 × -14 = 42, -11
6 × -7 = 42, -1
The second to last is right so the numbers are 3 and -14
Find the area of the circle below. You must show all work to get full credit. Don't forget to label your answer.
Answer:
Area of Circle = π[tex]r^{2}[/tex]
Step-by-step explanation:
Diameter = 40 in ....... (given)
Radis = 1/2.40 = 20 in
Area of Circle = π[tex]r^{2}[/tex]
= 22/7.[tex]20^{2}[/tex]
= 1 257,14 inches squared
gas tank is
full. After he buys 5 gallons of gas, it is
12 /
10
full. How many gallons can tank hold?
Answer:
25
Step-by-step explanation:
2.5 is 1 so 2.5 times 10 equals 25
\
Can anyone help? It's 5th grade math and I'm stuck on this problem. Please someone I'll do anything.
Kelly wants to buy carpet to cover her whole living room, except for the tiled floor. The tiled floor is 4 5/6 ft by 2 1/3 ft. Find the area the carpet needs to cover.
Answer:
11.277 or 11.28
or 11 7/25
Step-by-step explanation:
you should just multiply then turn to a mixed number. please mark as brainliest
CAN SOMEONE PLEASE HELP ME!!!
Answer:
A = 480 mm²
Step-by-step explanation:
the area (A) of a rhombus is calculated as
A = [tex]\frac{1}{2}[/tex] product of diagonals
The diagonals are perpendicular bisectors of each other , so
Δ XVW is a right triangle
using Pythagoras' identity in the right triangle , then
XV² + WV² = WX²
XV² + 24² = 26²
XV² + 576 = 676 ( subtract 576 from both sides )
XV² = 100 ( take square root of both sides )
XV = [tex]\sqrt{100}[/tex] = 10
then
XZ = 2 × XV = 2 × 10 = 20
and
WY = 2 × WV = 2 × 24 = 48
A = [tex]\frac{1}{2}[/tex] × XZ × WY = [tex]\frac{1}{2}[/tex] × 20 × 48 = 10 × 48 = 480 mm²
why cant i understand this
Answer:
that is corret
Step-by-step explanation:
it sound goos
PLEASE EXPLAIN ME THIS. IM BEGGING U
A retailer obtains a bank loan of € 83,300, with an interest rate 4.5%, to be repaid after 150 days.
> Calculate the interest due on expiry of the loan.
Answer:
Step-by-step explanation:
Calculation
Divide your interest rate by the number of payments you'll make that year. ...
Multiply that number by your remaining loan balance to find out how much you'll pay in interest that month. ...
Subtract that interest from your fixed monthly payment to see how much in principal you will pay in the first month.
An x-method chart shows the product a c at the top of x and b at the bottom of x. Above the chart is the expression a x squared b x c. Which statement is true of x2 8x – 6? (x – 2) is a factor of the polynomial. (x 2) is a factor of the polynomial. (x – 4) is a factor of the polynomial. The polynomial is prime.
The polynomial is prime because the provided polynomial can not be factored shown in the X-method chart.
What is X method?X-method is the method to find the factors of the polynomial equation.
An x-method chart shows the product a c at the top of x and b at the bottom of x.
Above the chart is the expression,
[tex]ax^2+bx+c[/tex]
The given polynomial in the problem is,
[tex]x^2 +8x - 6[/tex]
Let's check if the factors of polynomial. To find the factor, we need, to find the two number whose sum or different is 8 and the product is 6 (6 × 1).
As there is no number which gives has the sum or different is 8 and the product is 6 (6 × 1). Thus, the above polynomial can not be factored. Thus this polynomial is prime.
Thus, the polynomial is prime because the provided polynomial can not be factored, shown in the X-method chart.
Learn more about the X method here;
https://brainly.com/question/24379507
Answer:
d
Step-by-step explanation:
cuz i know
Helppppp A restaurant is offering 2 specials: 10 burritos for $12, or 6 burritos for $7.50. Noah needs 60 burritos for his party. Should he buy 6 orders of the 10-burrito special or 10 orders of the 6-burrito special? Explain your reasoning.
Answer:
Therefore, he should buy 6 orders of the 10-burrito special.
Step-by-step explanation:
12 x 6 = 72
7.50 x 10 = 75
a
18) A triangle has a base is
8 cm and an area of
20 sq cm. What is its
height?
Answer:
5
Step-by-step explanation:
20×2÷8
hope it helps you
Someone pls help? ........
Find the of X if triangle DBE ~ triangle ABC. please show work
Answer: 4
Step-by-step explanation:
Write -x^2+2xy-y^2 as the opposite of the square of a binomial
Answer:
4444444444444444444
Step-by-step explanation:
BELIEVE ME ON THIS ONE
Answer:
-(x-y)^2 because both x have a power to the two and i'm gonna bet that it's asking for a negative so there you go!