Answer:
A
Step-by-step explanation:
You can factor it as (2x - 1) (6x + 5) = 0
from which answer A follows.
j divided by 9 is 5 , write an equation to represent the following statement
Answer:
The first answer is incorrect
Step-by-step explanation:
45 divided by 9 is 5 not 40
The equation that represents the statement is j / 9 = 5.
What is an Equation?An equation is a mathematical statement that is formed when two algebraic expressions are equated using an equal sign.
The statement j divided by 9 is 5 can be written in equation form as follows:
j / 9 = 5
j = 45
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In the inequality, what are all the possible values of x?
−8x + 6 ≤ 2(−3x + 1)
A) x ≥ 2
B) x ≤ 2
C) x > 1/2
D) x < −1
Answer:
A
Step-by-step explanation:
-8*2+6≤2(-3*2+1)
= -10≤-10
What are the solutions to the quadratic equation 2x2 - 8x - 24 = 0?
Answer:
Step-by-step explanation:
2x² - 8x - 24 = 0
2x² - 12x + 4x - 4*6 = 0
2x(x-6) + 4(x - 6) = 0
(x - 6)(2x + 4) = 0
Find the vertex of the parabola. Write your answer as an ordered pair.
y equals 2 x squared plus 3
Answer:
(0,3)
Step-by-step explanation:
When X=0, Y=3
A boat is anchored 2.2 km due south of a lighthouse. Along the shore, the town of Beachton is 16.8 km due east of the lighthouse. Enter a number in the box to correctly complete the statement. Round the answer to the nearest tenth. The distance from the boat to Beachton is 16 point 9 km
Answer:
16.9 km
Step-by-step explanation:
From the diagram attached, we can see that the problem forms a triangle.
So, to find the distance(d) from the boat to Beachton , we can make use of Pythagoreas theorem.
Thus;
d² = 16.8² + 2.2²
d² = 282.24 + 4.84
d² = 287.08
d = √287.08
d = 16.9434
Approximating to the nearest tenth, we have;
d ≈ 16.9 km
Parallelogram efgh has sides of length 20 inches and 14 inches as shown. Its acute angle measures 62 degrees. Find the area of efgh to the nearest square inch
Answer:
The area of the parallelogram is 247 inches^2 to the nearest square inch
Step-by-step explanation:
This question asks us to calculate the area of a parallelogram given the sides and an acute angle.
Please check attachment for diagrammatic representation of the said parallelogram.
Mathematically, the area of the parallelogram can be calculated using the formula;
A = ab sin θ
where a and b refers to the length of the two sides and θ being the acute angle
Substituting these values, we have
A = 20 * 14 * sin 62
A = 280 sin 62 = 247.23 which is 247 inches^2 to the nearest square inch
What is the water shed
Answer:
Watershed is a drainage basin in a particular area where precipitation collects or stores and drains off in a river or bay etc.
hope it helps!
Answer: A watershed describes an area of land that contains a common set of streams and rivers that all drain into a single larger body of water, such as a larger river, a lake or an ocean. the Mississippi River watershed is an enormous watershed. Small watersheds are usually part of larger watersheds.
Find each percent of change. Round to the nearest whole percent. State
whether the percent of change is an increase or decrease. $240 to $320
Answer:400
Step-by-step explanation:3704
Is 254.9 million bigger than 1854 million????
Answer:
No, it is smaller.
Step-by-step explanation:
yess it has a decimal so its gonna be greater as well
i need help with this problem. please?!?
Answer:
Step-by-step explanation:
B
A bakery sold 32 bagels in the first hour of business and 39 bagels in the second hour. If the bakery had 241 bagels to start with, how many bagels were left after the second hour.
Answer:
170 Bagels
Step-by-step explanation:
Add the amount of bagels from the first and second hour which equals to 71, then subtract that from the total which is 241 and you will get 170.
A data set has a lower quartile of 3 and an interquartile range of 5. Which box plot could represent this data set?
A box-and-whisker plot. The number line goes from 0 to 25. The whiskers range from 2 to 15, and the box ranges from 3 to 8. A line divides the box at 6.
A box-and-whisker plot. The number line goes from 0 to 25. The whiskers range from 4 to 16, and the box ranges from 4 to 11. A line divides the box at 9.
A box-and-whisker plot. The number line goes from 0 to 25. The whiskers range from 2 to 15, and the box ranges from 3 to 10. A line divides the box at 8.
A box-and-whisker plot. The number line goes from 0 to 25. The whiskers range from 3 to 16, and the box ranges from 4 to 9. A line divides the box at 7.
Answer:A
Step-by-step explanation:
A box-and-whisker plot. The number line goes from 0 to 25. The whiskers range from 2 to 15, and the box ranges from 3 to 8. A line divides the box at 6. Option A is correct.
What is a box plot?A straightforward method of expressing statistical data on a plot in which a rectangle is drawn to represent the second and third quartiles, with a vertical line inside to indicate the median value. Horizontal lines on both sides of the rectangle show the lower and upper quartiles.
Here,
The lower quartile (Q1) of the data set is 3, so the bottom of the box must start at 3.
The interquartile range (IQR) is 5, so the upper quartile (Q3) must be
Q1 + IQR = 3 + 5 = 8
The median (also called the first quartile) is halfway between Q1 and Q3, so it must be at (Q1 + Q3) / 2 = (3 + 8) / 2 = 6.
The whiskers extend to the minimum and maximum values within 1.5 * IQR of the box, so they must range from 2 to 15.
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Question 28
Let be an angle in quadrant such that.
Find the exact values of and.
Answer:
see explanation
Step-by-step explanation:
Since Θ is an angle in the third quadrant, then secΘ < 0 and tanΘ > 0
Using the identity
sec x = [tex]\frac{1}{cosx}[/tex] , then
cos x = - [tex]\sqrt{1-sin^2x}[/tex]
= - [tex]\sqrt{1-(-3/5)^2}[/tex] = - [tex]\sqrt{1-\frac{9}{25} }[/tex] = - [tex]\sqrt{\frac{16}{25} }[/tex] = - [tex]\frac{4}{5}[/tex], thus
secΘ = [tex]\frac{1}{-\frac{4}{5} }[/tex] = - [tex]\frac{5}{4}[/tex]
---------------------------
Using the identity
tan x = [tex]\frac{sinx}{cosx}[/tex] , then
tanΘ = [tex]\frac{-\frac{3}{5} }{-\frac{4}{5} }[/tex] = - [tex]\frac{3}{5}[/tex] × - [tex]\frac{5}{4}[/tex] = [tex]\frac{3}{4}[/tex]
The value of sec(x) is (5/4) and tan(x) will be (-3)(4).
What is trigonometry?The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle termed trigonometry.
Sine, cosine, tangent, cosecant, secant, and cotangent are some of their names. The adjacent side, opposite side, and hypotenuse side of the right triangle are used to define each of these trigonometric ratios.
The six trigonometric ratios are the source of all fundamental trigonometric identities.
The given value of sin (x) is ( -3 / 5 ). The values of sec(x) and tan(x) will be calculated as below:-
sec(x) = 1 / cos(x)
[tex]cosx = \sqrt{1-sin^2x}[/tex]
[tex]cosx = \sqrt{1-(\dfrac{-3}{5})^2}[/tex]
cos(x) = 4 / 5
sec(x) = 1 / ( 4 / 5 ) = ( 5/ 4)
The value of tan(x) will be calculated as:-
tan(x) = sin(x)/cos(x) = ( -3 / 5 ) / (4 / 5 )
tan(x) = (-3/4)
Therefore, the value of sec(x) is (5/4) and tan(x) will be (-3)(4).
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Theater a sells popcorn in a rectangular prism theater B sells popcorn in a similar tub both cost five dollars which theater gives you a better deal find the volume of theater is popcorn
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete as the dimensions of tubs used by theatre A and B is missing.
However, I'll solve the question as follows.
First, it should be noted that the tub with highest volume gives the best deal.
This is so because both pop corns go for the same price of $5 and the tub with the highest volume contains more popcorn.
The volume of a rectangular prism is calculated by
Volume = Length * Breadth * Height
Take for instance, the dimension of tub A is length = 4cm, breadth = 5cm and height = 6cm
And the dimension of tub B is length = 3cm, breadth = 7cm and height = 5cm
The volume of tub A (theatre A) = 4cm * 5cm * 6cm
Volume = 120cm³
The volume of tub B (theatre B) = 3cm * 7cm * 5cm
Volume = 105cm³
Because the volume of tub A is greater than that of tube B, then tube A offers the best deal
If you apply this steps in your question, you'll arrive at the right answer.
You arrive in my class 45 seconds after leaving math which is 90 meters away. How fast did you travel?
Answer:
2 m/s=90 meters/45 seconds
11=3x-4
x=....
thanks all
Answer:
the value of x is 5 .
Step-by-step explanation:
In order to find the value of x, you have to move the unrelated terms to the other side by adding 4 to both sides :
[tex]11 = 3x - 4[/tex]
[tex]11 + 4 = 3x - 4 + 4[/tex]
[tex]15 = 3x[/tex]
Next, you have to divide it by 3 :
[tex]3x = 15[/tex]
[tex]x = 15 \div 3[/tex]
[tex]x = 5[/tex]
Answer:
the answer is attached to the picture
Step-by-step explanation:
hope this helps
the quadratic function h(t}= -16.1t2+150
Answer:
Huh. I don't really see the question at hand.
2. The base of a circular cylinder has a diameter of 10 yards. The height is 11 yards. What is the surface area of the cylinder, rounded to the nearest tenth? (a) 961.3 yd2 (b) 1131.0 yd2 (c) 502.7 yd2 (d) 747.7 yd2
Answer:
Step-by-step explanation:
surface area=2πrh+2πr²=2πr(r+h)
=2π×5(5+11)
=160π
≈505.7 yd²
Habib is making some scones.
His recipe tells him to bake the scones at 356°F for 30 minutes.
The temperature gauge on Habib's oven shows the temperature in
degrees Celsius, "C.
The formula to convert °F (Fahrenheit) into °C is:
C = 5F - 160
At what temperature, in °C, should Habib bake his scones?
Answer:
1620°C
Step-by-step explanation:
Using the equation
C = 5F - 160, at 356°F we'll have
C = 5(356) - 160
C = 1780 - 160
C = 1620°C
Does anyone understand how to do this?
Answer:
f ( x ) = - 2x^2 + 3x + 1
Step-by-step explanation:
If f ( x ) extends to → − ∞, as x→ − ∞ , provided f(x) → − ∞, as x → +∞, we can rewrite this representation as such;
− ∞ < x < ∞, while y > − ∞
Now the simplest representation of this parabola is f ( x ) = - x^2, provided it is a down - facing parabola;
If we are considering a down - facing parabola, the degree of this trinomial we should create should be even, the LCM being negative. Knowing that we can consider this equation;
Solution; f ( x ) = - 2x^2 + 3x + 1, where the degree is 2, the LCM ⇒ - 2
Which statement is true about a line that contains the point ሺ2, 7ሻ and has a slope of 0.5?
A The line will also contain the point ሺ4, 6ሻ.
B The line will have a y-intercept of 6.
C The line will contain points whose y-coordinate will decrease in value as you move to the right
D none of the above
Answer:
I think it is C) The line will contain points whose y-coordinate will decrease in value as you move to the right
Step-by-step explanation:
HOPE THIS HELPS
Hailey has 48 inches of ribbon. How many feet of ribbon does she have?
Conversion:
12 inches = 1 foot
Divide:
48 / 12 = 4
Therefore, Hailey has 4 feet of ribbon.
Best of Luck!
Answer: 4 foot of ribbon
Step-by-step explanation: there is 12 inches in one foot so this means to get the answer you must divide 48 by 12 to get 4 so 4 feet is the answer
hope this helps and mark me brainliest if it did hope you have a great day
Guyss please help me with this question. I tried a thousand times but it's still incorrect.
Answer: [tex]17.68cm[/tex]
Step-by-step explanation:
Using the area formula of a cone, find the height first.
[tex]A=\pi r(r+\sqrt{h^2+r^2})[/tex]
Solve for h,
Begin by dividing by [tex]\pi r[/tex]
[tex]\frac{A}{\pi r}=r+\sqrt{h^2+r^2}[/tex]
Subtract r.
[tex]\frac{A}{\pi r}-r=\sqrt{h^2+r^2}[/tex]
Square both sides.
[tex](\frac{A}{\pi r}-r)^2=(\sqrt{h^2+r^2})^2[/tex]
[tex](\frac{A}{\pi r}-r)^2=h^2+r^2[/tex]
Subtract [tex]r^2[/tex]
[tex](\frac{A}{\pi r}-r)^2-r^2=h^2[/tex]
Extract the square root.
[tex]\sqrt{(\frac{A}{\pi r}-r)^2-r^2 } =\sqrt{h^2}[/tex]
[tex]\sqrt{(\frac{A}{\pi r}-r)^2-r^2 } =h[/tex]
Plug in your values.
[tex]\sqrt{[\frac{670cm^2}{(3.14)(8cm)}-(8cm)]^2-(8cm)^2 } =h[/tex]
Solve;
[tex]\sqrt{[\frac{670cm^2}{25.12cm}-(8cm)]^2-(8cm)^2 } =h[/tex]
[tex]\sqrt{[26.67cm-(8cm)]^2-(8cm)^2 } =h[/tex]
[tex]\sqrt{(18.67cm)^2-(8cm)^2 } =h[/tex]
[tex]\sqrt{348.57cm^2-64cm^2}=h[/tex]
[tex]\sqrt{284.57cm^2}=h[/tex]
[tex]15.77cm=h[/tex]
------------------------------------------------------------------
Now, to find the slant height use this formula: [tex]l=\sqrt{h^2+r^2}[/tex]
[tex]l=\sqrt{(15.77cm)^2+(8cm)^2}\\l=\sqrt{248.69cm^2+64cm^2}\\ l=\sqrt{312.69cm^2}\\ l=17.68cm[/tex]
A mirror should be centered on a wall the mirror is 4 feet wide in the wall is 20 Feet wide what equation helps determine the distance X on each side of the mirror
Answer:
A)x + 4 + x = 20
Step-by-step explanation:
Complete question:
Which equation helps determine the distance x on each side of the mirror?
A. x + 4 + x = 20
B. 4 + x + 4 = 20
C. x = 20 + 4 + 4
D. 4 = 20 + x + x
SOLUTION:
As given,The mirror is 4 feet wide and the wall is 20 feet wide.
The distance 'x' on each side of the mirror is x + x
4 feet wide + x + x = 20 feet wide
The mirror 4 feet wide + the distance x on each side of the mirror = the wall is 20 feet wide
Therefore, the correct option is A
Which equivalent fraction for 2/3 is? Can someone plz help me
Answer:
the answer is 4/6 or 6/9
Stir-fry is Vince's favorite food to cook, but it always makes a lot of smoke! Vince needs to know the volume of his kitchen so he can buy a fan that is the right size. Vince's kitchen has a floor area of 85 square feet. The height of the ceiling is 8 feet. What is the volume of Vince's kitchen?
Answer:
The volume of Vince’s Kitchen is 680 cubic feet
Step-by-step explanation:
To calculate the volume of Vince’s kitchen, what is needed to be done is to multiply the area of the floor by the height of the kitchen
Mathematically Volume V of kitchen = area of kitchen floor * height of kitchen
From the question, the area of the kitchen floor = 85 square feet
Height of kitchen = 8 feet
Plugging these values to get the area of the Kitchen, we have;
V = 8 * 85 = 680 cubic feet
PLZ HELP!! :)
You estimate that a lamb weighs 10 pounds. The actual weight of the lamb is 13 pounds. Find the percent error. Round your answer to the nearest hundredth of a percent.
Answer:
30%
Step-by-step explanation:
Seems as if that lamb was thiccccca than what you thought
Find the slope of the line passing through the poin (- 3, 7) (2, - 6)
Answer:
[tex] \frac{13}{ - 5} [/tex]
Step-by-step explanation:
[tex] \frac{y1 - y2}{x1 - x2} \\ \frac{7 - ( - 6)}{ - 3 - 2} \\ \frac{7 + 6}{ - 5} \\ = \frac{13}{ - 5} [/tex]
Answer:
-2.6
Step-by-step explanation:
Slope or gradient is the ratio of the vertical (y axis) and horizontal distances (x axis) between two points on a line.
It should be noted that it is defined as zero if the line is horizontal, but undefined if it is vertical.
Given:
Coordinates (- 3, 7) (2, - 6)
y1 = 7, y2= -6, x1= -3, x2=2
Slope : ∆ y/ ∆ x
= (y2 - y1 )/ (x2 - x1)
= (-6 - (7))/ (2 - (-3))
= (-13)/(5) = -13:5= -2.6
help plz! (a + b - c)(a + b + c) multiplying polynomials
Answer:
a^2 + 2ab + b^2 - c^2
Step-by-step explanation:
When you multiply all the terms together you get a^2 + ab + ac + ab + b^2 + bc - ac - bc - c^2. Then you can just combine like terms and simplify it to a^2 + 2ab + b^2 - c^2. Hope this helps :)
Write in slope-intercept form an equation of the line that passes through the given points. (2, 4), (3, 6) y=
Answer:
m=6-4/3-2=2/1=2
y-4=2(x-2)
y-4=2X-4
y=2X