Answer:
24/7
Step-by-step explanation:
find the zeros of the function by factoring 3x^2+ 10x=8
Answer:
[tex]x=\frac{2}{3}, -4[/tex]
Step-by-step explanation:
hope this helps!
Picture is attached to it please help I need it
Answer:
x = 80, y = 100
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here n = 7 , then
sum = 180° × 5 = 900°
Sum the interior angles and equate to 900
y + 135 + 140 + 150 + 120 + 135 + 120 = 900, that is
y + 800 = 900 ( subtract 800 from both sides )
y = 100
x and y are adjacent angles and are supplementary, that is sum to 180°
x + y = 180
x + 100 = 180 ( subtract 100 from both sides )
x = 80
Thus x = 80 and y = 100
The diagram shows 3 identical circles inside a rectangle.
Each circle touches the other two circles and the sides of a rectangle,
as shown in the diagram.
The radius of each circle is 28 mm.
Work out the area of the rectangle.
Give your answer correct to 3 significant figures.
Answer:
11700 mm²
Step-by-step explanation:
A rectangle is a quadrilateral with two equal, opposite and parallel sides. Each of the angles in a rectangle is 90°.
The horizontal distance of the rectangle = r + r + r + r = 4r
The vertical distance = r + h + r = 2r + h
Where h is the distance between the midpoint of the 2 up circles and the midpoint of the down circle.
Using Pythagoras:
(2r)² = h² + r²
h² + r² = 4r²
h² = 3r²
h = √3r²
h = r√3
Vertical distance = 2r + h = 2r + r√3
Area of rectangle = vertical distance * horizontal distance
Area = 4r * (2r + r√3) = 8r² + 4r²√3 = 4r²(2 + √3)
Substituting:
Area = 4r²(2 + √3) = 4(28²)(2 + √3) = 11703.711 mm²
Area = 11700 mm² to 3 s.f
−11=r+4+4r Plz provide step by step
Answer:
R=-3
Step-by-step explanation:
-11=r+4+4r
-11=5r+4
-4 both sides
-15=5r
Divide 5 both sides
r=-3
Answer:
r=-3
Step-by-step explanation:
You had a goal to collect 150 cans for a food drive. You were able to collect 90 cans. What percent of your goal did you collect?
Answer:
60 %
Step-by-step explanation:
multiply .90 * 150
Answer:
60%
Step-by-step explanation:
hope this helps <3
Who can answer this ??
Answer:
I think d sorry if I get it wrong
HELP DUE IN 30 MIN
x =
Answer:
x=4
Step-by-step explanation:
21x+6=90(alternate angles)
21x=90-6
x=94/21
Therefore, x=4
Answer:
x=4
Step-by-step explanation:
21x+6=90
-6. -6
21x=84
/21. /21
x=4
What inverse trig function can be used to find the measure of angle A? (Will give Brainliest ❤️❤️)
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Answer:
(b) sin⁻¹
Step-by-step explanation:
The relevant trig function relating angles to sides is ...
Sin = Opposite/Hypotenuse
Here, we have ...
sin(A) = 4/12 = 1/3
A = arcsin(1/30 = sin⁻¹(1/3)
The inverse sine function can be used to find the angle.
Read the caption thank you :)) if you know it let me know!
Answer:
∠ A = 50°
Step-by-step explanation:
In a parallelogram, consecutive angles are supplementary, sum to 180°
∠ A + 130° = 180° ( subtract 130° from both sides )
∠ A = 50°
Given: F(x) = x +3 ; G(x) = 2x^2 -4 Find (f*g)(x)
I seriously need help with this
Answer:
(f*g)(x) = (x +3)(2x² -4) =2(x+3)(x²-4) or = 2x³ + 6x² - 4x -12
Step-by-step explanation:
F(x) = x +3
G(x) = 2x^2 -4
(f*g)(x) = f(x) * g(x)
(f*g)(x) = (x +3)(2x² -4) =2(x+3)(x²-4) or = 2x³ + 6x² - 4x -12
The function (f x g)(x) is equal to 2x³ + 6x² - 4x -12.
What is a function?A function in mathematics set up a relationship between the dependent variable and independent variable. on changing the value of the independent variable the value of the dependent variable also changes.
The function (f x g)(x) is calculated as,
F(x) = x +3
G(x) = 2x² -4
(f x g)(x) = f(x) x g(x)
(f x g)(x) = (x +3)(2x² -4) =2(x+3)(x²-4)
(f x g)(x) = 2x³ + 6x² - 4x -12
Therefore, the function (f x g)(x) is equal to 2x³ + 6x² - 4x -12.
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hiii please help i’ll give brainliest if you give a correct answer ty!!
math problem need help
X =
95
(7x - 4)
(3x + 23)°
(9x – 6)
Answer:
661 is for the first 308 for second 849 for last
Step-by-step explanation:
Can some one help me
Answer:
hey long time no see!
You are on a treasure-diving ship that is hunting for gold and silver coins. You reel in a wire basket that contains gold and silver coins, among other things. The basket holds no more than 50 pounds of material. Each gold coin weighs about 0.5 ounce, and each silver coin weighs about 0.25 ounce. You want to know the different numbers of each type of coin that could be in the basket.
Answer:
Inequality equation:
0.03125x + 0.015625y ≤ 50 pounds
Step-by-step explanation:
We convert the ounces to pounds
1 ounce = 0.0625 pound
For the gold coin = 0.5 ounce
1 ounce = 0.0625 pounds
0.5 ounce = x
x = 0.5 × 0.00625 pounds
x = 0.03125 pounds
For the Silver coin = 0.25 ounce
1 ounce = 0.0625 pounds
0.25 ounce = x
x = 0.25 × 0.00625 pounds
x = 0.015625 pounds
The basket holds no more than 50 pounds of material.
Let the number of gold coins = x
The number of silver coins = y
Hence: our inequality equation:
0.03125x + 0.015625y ≤ 50 pounds
What is the area of the triangle?
24
10
26
units2
Can you anser the question number 7
Answer:
Length of rectangle = 64 inches
Width of rectangle = 32 inches
Step-by-step explanation:
Perimeter of rectangle = 192 in
Length = x
Width = [tex]\frac{1}{2}x[/tex]
We need to find the length and width.
The formula used is: [tex]Perimeter\:of\:rectangle=2(Length+Width)[/tex]
Putting values and finding value of x
[tex]Perimeter\:of\:rectangle=2(Length+Width)\\192=2(x+\frac{x}{2} )\\192=2(\frac{2x+x}{2} )\\192=2(\frac{3x}{2} )\\192=3x\\x=\frac{192}{3}\\x=64[/tex]
So, we get x = 64
The length of rectangle x = 64
The width of rectangle = [tex]\frac{1}{2}x[/tex] = [tex]\frac{64}{2} = 32[/tex]
So, Length of rectangle = 64 inches
Width of rectangle = 32 inches
Answer:
Length of rectangle = 64 inches
Width of rectangle = 32 inches
Step-by-step explanation:
Determine the input, output and function of the following question
K=3H-11
Answer:
do we need to explain in words or numbers
Step-by-step explanation:
Point E on the diagonal of the rectangle ABCD, AE:EC=3:1, and AB:BC=5:4. Find the ratio of DE to BE
Answer:
3.88 : 3.25 ≈ 13 : 11
Step-by-step explanation:
I don't know what are you in, geometry or algebra? I'll post my way of solution. It may need some calculator calculation that I can't give detail of steps here. I just like to explore something, wish it help.
suppose D is the origin, DA = 4 and AB = 5
A (0,4) B(5,4) C(5,0) D(0,0)
AE/AC = 3/4 (i.e. AE/EC = 3/1)
parallel of EF with DC and EG with BC
CF/BC = CE/AC = 1/4
CF = BC x 1/4 = 4 x 1/4 = 1
DG/DC = AE/AC = 3/4
DG = DC x 1/4 = 5 x 3/4 = 15/4
coordinator of E (3.75 , 1)
length of DE = √3.75² + 1² = 3.88
length of BE = √1.25² + 3² = 3.25
DE : BE = 3.88 : 3.25 ≈ 13: 11 (3.88/13 ≈ 0.29, 3.25/11 ≈ 0.29)
Cound someone explain the relativistic mass-energy equation for me please? 100 points and brainliest
Answer:
Relativistic energy is conserved as long as we define it to include the possibility of mass changing to energy. Total Energy is defined as: E = γmc2, where γ=1√1−v2c2 γ = 1 1 − v 2 c 2 . Rest energy is E0 = mc2, meaning that mass is a form of energy. If energy is stored in an object, its mass increases.
Step-by-step explanation:
Answer:
Energy can either be potential energy or kinetic energy, but mechanical energy
Mechanical energy = Potential energy + Kinetic energy
[tex]potential \: energy = mgh \\ kinetic \: energy = \frac{1}{2}m {v}^{2} \\ mechanical \: energy = mgh + \frac{1}{2} m {v}^{2} \\ = \frac{1}{2} m(2gh + m {v}^{2} )[/tex]
Then for Eistein mass energy relation
E = mc²
c is speed of light
5 (2x + 10) = 50
What is the answer
9514 1404 393
Answer:
x = 0
Step-by-step explanation:
You can eliminate parentheses and subtract 50.
5(2x +10) = 50
10x +50 = 50 . . . . use the distributive property
10x = 0 . . . . . . . . . subtract 50 from both sides
x = 0 . . . . . . . . . . . divide by 10
__
Check
5(2·0 +10) = 50
5(10) = 50 . . . . true
help help help ! (ITS DUE)
Answer:
y÷8
Step-by-step explanation:
The quotient is the result of division between two numbers.
SOOO its y÷8 because a quotient is a division problem and y and 8 are the variables in the equation!
Megan is trying to break the school's long jump
record. To what level of accuracy and precision
should her jump be measured?
Mr. Jenkins has 19 cases of beans on the shelves in the grocery store. He also has 6 cases of beans in the stock room. There are 14 cans of beans in each case. Which expression represents the total number of cans of beans Mr. Jenkins has? (19 + 14) x 6 14 x (19 + 6 ) (6 + 14) x 19 (6 x 19 + 14
Answer:
14 × (19 + 6)
hope it helps
The expression represents the total number of cans of beans Mr. Jenkins is, (19+6)×14, So Option B is correct.
What are expressions?An expression is a sentence with at least two numbers or variables having mathematical operation. Math operations can be addition, subtraction, multiplication, division.
For example, 2x+3
Given that,
Mr. Jenkins has 19 cases of beans
He also has 6 cases of beans in the stock room
There are 14 cans of beans in each case
Expression for total number of beans = ?
Total number of beans = Total number of cases ×beans in each case
Total number of beans = (beans in grocery store+beans in stock room)×14
Total number of beans = (19 +6) × 14
Hence, the expression is (19 +6) × 14
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Which interval notation represents the set of all number greater than or equal to 1 and less than 6
Indicating the solution to an inequality such as \displaystyle x\ge 4x≥4 can be achieved in several ways.
We can use a number line as shown in Figure 2. The blue ray begins at \displaystyle x=4x=4 and, as indicated by the arrowhead, continues to infinity, which illustrates that the solution set includes all real numbers greater than or equal to 4.
A number line starting at zero with the last tick mark being labeled 11. There is a dot at the number 4 and an arrow extends toward the right.
Figure 2
We can use set-builder notation: \displaystyle \{x|x\ge 4\}{x∣x≥4}, which translates to “all real numbers x such that x is greater than or equal to 4.” Notice that braces are used to indicate a set.
The third method is interval notation, in which solution sets are indicated with parentheses or brackets. The solutions to \displaystyle x\ge 4x≥4 are represented as \displaystyle \left[4,\infty \right)[4,∞). This is perhaps the most useful method, as it applies to concepts studied later in this course and to other higher-level math courses.
The main concept to remember is that parentheses represent solutions greater or less than the number, and brackets represent solutions that are greater than or equal to or less than or equal to the number. Use parentheses to represent infinity or negative infinity, since positive and negative infinity are not numbers in the usual sense of the word and, therefore, cannot be “equaled.” A few examples of an interval, or a set of numbers in which a solution falls, are \displaystyle \left[-2,6\right)[−2,6), or all numbers between \displaystyle -2−2 and \displaystyle 66, including \displaystyle -2−2, but not including \displaystyle 66; \displaystyle \left(-1,0\right)(−1,0), all real numbers between, but not including \displaystyle -1−1 and \displaystyle 00; and \displaystyle \left(-\infty ,1\right](−∞,1], all real numbers less than and including \displaystyle 11. The table below outlines the possibilities.
I hope I will help
Please help me with this question
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Answer:
x = 7 1/3
Step-by-step explanation:
The smaller triangle is 6/9 = 2/3 the size of the larger triangle, so the left side is ...
(x -2) = (2/3)(8)
3(x -2) = 16 . . . . . multiply by 3 to clear fractions
3x -6 = 16 . . . . . . eliminate parentheses
3x = 22 . . . . . . . . add 6; next divide by 3*
x = 22/3 = 7 1/3 . . . . . feet
_____
* Note that we multiplied by 3, then divided by 3. If you're comfortable working with fractions and/or mixed numbers, these steps are unnecessary. The answer is simply x = 2 + 16/3 = 22/3.
I need help!!
Which of the following expression is equal to y/x^2?
Write the expression shown below in simplest terms.
4/5 (10x - 25) + 25
Answer:
4
0
−
1
0
0
5
+
2
5
Step-by-step explanation:
Brainliest?
NEED HELP ASAP!!! please help me
Given f(x) = 2x^2 – 9x + 2, g( x)= 1-6x, and
h(x) = x2 - 4, find (f o h) (2)
Answer:
The value of (f о h) (2) is 2
Step-by-step explanation:
Let us solve the question
In the composite function (f о h) (x) we substitute x in f(x) by h(x)
∵ f(x) = 2x² - 9x + 2
∵ h(x) = x² - 4
∵ We need to find (f о h) (2)
→ That means use x = 2
∴ x = 2
We will find at first h(2), then substitute x in f by the answer of h(2)
∵ x = 2
∵ h(2) = (2)² - 4
∴ h(2) = 4 - 4
∴ h(2) = 0
Now substitute x in f by 0
∵ x = 0
∵ f(0) = 2(0)² - 9(0) + 2
∴ f(0) = 0 - 0 + 2
∴ f(0) = 2
∴ (f о h) (2) = 2