Answer:
the y-intercept is (0,75)
Step-by-step explanation:
the y-intercept is where the line crosses the y-axis.
Please help me!! I don’t get it
Answer:
x=3
Step-by-step explanation:
Solve for x by cross multiplying.
find the constant terms 5x^2+6x+c
What is the percentage of decrease from 2 to 1
ASAP PLEASE HELP
What is the area of the figure
Answer:
x = 47.5
Step-by-step explanation:
5 times 5 = 25
9 times 5 = 45
45 divided by 2 = 22.5
25 + 22.5 = x
x = 47.5
Aisha collects 1p coins and 2p coins. 24 of these are 1p coins. The probability of choosing a 2p coin at random is 1/2 How much money does she have in total?
Answer:
Aisha has 24 2p coins and 24 1p coins, then she has in total:
2p*(24) + 1*p*(24) = 48p + 24p = 72p
Step-by-step explanation:
Suppose that we have a set of N elements in a bag (if the bag is closed and we put our hand inside to grab one element, we could not distinguish them apart), and K of these elements have a given property (for example, these are red).
The probability of selecting at random one of these red elements is equal to the quotient between the number of elements with that property (K) and the total number of elements in the bag (N)
P = K/N
Now let's go to our problem.
We have 24 1p coins.
We have X 2p coins.
Then the total number of coins is: (24 + X)
We know that the probability of choosing at random a 2p coin is then:
P = X/(24 + X)
And we know that this is equal to 1/2
Then:
X/(24 + X) = 1/2
X = (1/2)*(24 + X) = 24/2 + X/2
X = 12 + X/2
X - X/2 = 12
X/2 = 12
X = 2*12 = 24
Then Aisha has 24 2p coins.
Aisha has 24 2p coins and 24 1p coins, then she has in total:
2p*(24) + 1*p*(24) = 48p + 24p = 72p
How many tenths are equal to 1/2+4/5?
Determine area of polygon with side length of 10
Evaluate -1-(-z) when z=-2
After Evaluating -1-(-z) when z=-2, the result of the given expression would be 1.
What is an expression in mathematics?In mathematics, an expression is a combination of numbers, variables, and operators (such as +, -, *, /, etc.) that represents a value or a computation.
An expression in mathematics is made up of a combination of variables, numbers, and functions (such as addition, subtraction, multiplication or division etc.) In some ways, phrases and expressions are similar. While a phrase by itself in language may contain an action, it does not constitute a complete sentence.
Arithmetic operators and numbers make up a mathematical numerical expression. No equality or inequality symbols, or unidentified variables, are present. Indeterminate variables, numbers, and arithmetic operators make up an algebraic expression. Neither equality nor inequality symbols can be found in it.
Evaluating the expression -1-(-z) when z=-2:
-1-(-z) = -1-(-(-2)) = -1+2 = 1
Hence, the result of the given expression would be 1.
To learn more about the expression in mathematics, visit:
https://brainly.com/question/14083225
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help me out please :)
Pls help meeeee and thank you so so much i don’t know how to do this
Answer:
The new coordinate after translating the figure are : (- 1 , -2)
Step-by-step explanation:
By using the following a translation mapping rule for this problem:
( x,y) → (x -2, y - 5)
What is the MEDIAN of the data - (12, 8, 6, 12, 16, 12) *
Answer:
12
Step-by-step explanation:
Median basically means middle. So when you get a set of numbers, put them in order from least to greatest. This leaves us with ( 6 8 12 * 12 12 16 ). Now, we have to find the middle number (shown by *), but because this is an even amount of numbers (no defined middle), we take the two numbers in the middle, which would be the two 12's. If these were different numbers, we would add them together and then divide by two to get the median, but that's unnecessary here. Your median will be 12!
Answer:
When finding median, first arrange the values in ascending or descending order.
Suppose I take the ascending order:
[tex]6 \: \: 8 \: \: 12 \: \: 12 \: \: 12 \: \: 16 \\ median = ( \frac{n}{2} + 1) ^{th} value \\ n = number \: of \: terms = 6 \: digits \\ = ( \frac{6}{2} + 1) {}^{th} \: value \\ = 4 {}^{th} value \\ from \: the \: values 4 {}^{th} value = 12 \\ median = 12[/tex]
Someone plz help me, I need help with this so bad.
Answer:
1. Corresponding Angles
2. Alternate Interior Angles
3. Alternate Exterior Angles
4. If <a=25 then <h will equal 25 because they are congruent
I need help please thank you
Answer:
See attachment
Step-by-step explanation:
We can graph this line using the equation given to us. The equation is in slope-intercept form, [tex]y=mx+b[/tex]. In this form, [tex]m[/tex] = slope and [tex]b[/tex] = the y-intercept.
So, we can tell that the slope is -[tex]\frac{1}{5}[/tex] and the y-intercept is (2,0).
We begin by plotting on the graph the y-intercept, (2,0).
The slope also equals the [tex]\frac{rise}{run}[/tex]. The slope is negative, so the line will slope down. From the point we have plotted, we will rise negative 1 unit. This means to move down 1 unit. From this point, we will run 5 units. Because the line is negative, we will move 5 units to the left, not the right. We land on point (5,1).
Now, we will draw a line from these two points. This is the line shown in the equation.
Good luck ^^
What is the solution set of the equation (x - 2)(x - a) = 0
Answer:
x=2, x=a
Step-by-step explanation:
the population in elm ridge grew from 1,370 to 1,808 in one year , what is the percent increase in the population ?
Answer:
31.97% (rounded to the nearest hundredth)
Step-by-step explanation:
*PLEASE HELP*
A magazine contains fourteen pages. You open to a random page.
Find the probability that the page number is 3 or 7.
“Or” meaning they want both. Since they each represent 1/14 add them together. 1/14+1/14=2/14. Then simplify 2/14 to get 1/7
So, the answer the 1/7
will give brainliest!!
Caleb made a sand castle of a pyramid when he was on vacation. His pyramid had a square base with side lengths of 2 feet and a height of 5 ft. How much sand did he use?
Elizabeth was practicing with her bow an arrow. She made 11 of the 12 shots right in the center. What percentage did make in the center? Round your answer to the nearest whole percentage.
The surface of a pedestrian bridge forms a parabola. Let the surface at one side of the bridge be represented by (4,0) and the surface at the other side be represented by (8,0). The center of the bridge is 3 feet higher than each side and can be represented by a vertex of (6,3). Write a function in vertex form that models the surface of the bridge.
Answer:
y = -3/4(x - 6)^2 + 3
Step-by-step explanation:
y = ax^2 + bx + c
(4, 0)
16a + 4b + c = 0 Eq. 1
(8, 0)
64a + 8b + c = 0 Eq. 2
(6, 3)
36a + 6b + c = 3 Eq. 3
We have a system of three equations in three variables.
Eq. 2 - Eq. 1
48a + 4b = 0 Eq. 4
Eq. 2 - Eq. 3
28a + 2b = -3 Eq. 5
Eq. 4 - 2 * Eq. 5
-8a = 6
a = -6/8
a = -3/4
48a + 4b = 0
48(-3/4) + 4b = 0
4b = 36
b = 9
16a + 4b + c = 0
16(-3/4) + 4(9) + c = 0
-12 + 36 + c = 0
c = -24
The equation of the parabola is
y = -3/4 x^2 + 9x - 24
y = -3/4(x^2 - 12x + 32)
y = -3/4(x^2 - 12x + 36) + (-3/4)32 - (-3/4)(36)
y = -3/4(x^2 - 12x + 36) -24 + 27
y = -3/4(x - 6)^2 + 3
Help me plzzzz help me
Answer:
A. 1/12
if wrong sorry
hope this helps you ☺️☺️
Answer:
D. [tex] \frac{3}{20}[/tex]
Step-by-step explanation:
[tex]l = \frac{ \theta}{360 \degree} \times c \\ \\ l = \frac{54 \degree}{360 \degree} \times c \\ \\ l = \frac{3}{20} \times c \\ \\ [/tex]
Thus, the length of the arc RST is [tex] \frac{3}{20}[/tex] times of the circumference of the circle with center C.
5. Find the volume of the cylinder. Leave your
answer in terms of t.
8 cm.radius
8 cm.height
Answer:
[tex]512\pi[/tex]
use the formula
21 cm by 18cm by 15 cm what will the total sq cm
Answer:
5670 [tex]cm^{3}[/tex] will be your answer!
Step-by-step explanation:
21 x 18 x 15 = 5670
Brooklyn has a points card for a movie theater. She receives 35 rewards points just for signing up. She earns 14.5 points for each visit to the movie theater. She needs at least 45 points for a free movie ticket. Which inequality can be used to determine x x, the minimum number of visits Brooklyn needs to earn her first free movie ticket?
Answer:
35+14.5x≥45
Step-by-step explanation:
35+14.5x≥45
What value of y makes the equation 4x – 3y = 17 true, when x = 2?
Answer:
y = -3
Step-by-step explanation:
4x – 3y = 17
x = 2
4(2) - 3y = 17
8 - 3y = 17
-3y = 9
y = -3
Answer:
y= -3
Step-by-step explanation:
if x =2, substitute
4(2) - 3y = 17
8-3y = 17
(add 3y to both sides)
8= 17 + 3y
(subtract 17 from both sides)
8-17=3y
-9= 3y
(divide both sides by 3)
-9/3=y
y= -3
I need help please. Honestly I barely understand this.
Answer:
[tex] - 12288 \div {2}^{11} = - 6 \\ forth \: answer \: is \: correct[/tex]
Answer:
4th option
Step-by-step explanation:
The nth term of a geometric sequence is
[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]
where a₁ is the first term and r the common ratio
To find a₁ use a₁₂ = - 12288 , then
a₁ [tex](2)^{11}[/tex] = - 12288 , that is
a₁ × 2048 = - 12288 ( divide both sides by 2048 )
a₁ = - 6
Then the explicit formula is
[tex]a_{n}[/tex] = - 6 . [tex]2^{n-1}[/tex]
7,-3,12,-0.8,0.8,-10,-2 if these numbers represent elevations in meters which is the farthest away from sea level?
Answer:
-10 would be correct
Step-by-step explanation:
-10
Show two of the triangles below are similar. Include a similarity statement and show work to support your statement. (The numbers on the first one that are blurry are 8’s)
Answer:
1. ΔABC ~ ΔMPN by AA, similarity postulate
2. No two triangles among the triangles ΔRST, ΔKLM, and ΔJRW are similar
Step-by-step explanation:
1. It is required to show that two of the given triangles are similar;
ΔABC is a right triangle, [tex]\overline {AC}[/tex] = 8, [tex]\overline {CB}[/tex] = 12, ∠A = 38°
∴ ∠B = 90° - 38° = 52
The ratio of the legs = [tex]\overline {AC}[/tex]/[tex]\overline {CB}[/tex] = 8/12 = 2/3
ΔDEF is a right triangle, the legs [tex]\overline {DF}[/tex] = 10, and [tex]\overline {EF}[/tex] = 12
The ratio of the legs = [tex]\overline {DF}[/tex]/[tex]\overline {EF}[/tex] = 10/12 = 5/6
∴ ΔABC is not similar to ΔDEF as [tex]\overline {AC}[/tex]/[tex]\overline {CB}[/tex] ≠ [tex]\overline {DF}[/tex]/[tex]\overline {EF}[/tex]
ΔMPN is a right triangle, ∠M = 52°, therefore, ∠N = 90° - 52° = 38°
Two angles in triangle ΔMPN are equal to two angles in triangle ΔABC, therefore;
ΔABC ~ ΔMPN by Angle-Angle, AA, similarity postulate
2. The two given angles in ΔRST are ∠R = 45° and ∠S = 67°
The two given angles in ΔKLM are ∠K = 45° and ∠SL = 68°
The given angles in ΔJRW are ∠J = 21° and ∠R = 90° therefore, ∠W = 90 - 21 = 69°
No two triangles in ΔRST, ΔKLM, and ΔJRW are similar.
Find x, y, and z
3
7
Z
Step-by-step explanation:
If x=3, y=7 when x+y=z
z=3+7
z=10
I'm stuck on two polynomial questions and any help would be greatly appreciated!
1. (4x-3y) is a factor of [tex]a^{2}x^{2} -b^{2}y^{2}[/tex] what is the value of [tex]a^{2} + b^{2}[/tex]?
2. [tex]x^{2} +19x+c[/tex] has a factor of (x+7) what is the value of c?
Answer:
1) 252) 84Step-by-step explanation:
#1
a²x² - b²y² = (ax + by)(ax - by)
Since (4x - 3y) is one of the factors, we have:
a = 4, b = ± 3The value of a² + b² is:
4² + (±3)² = 16 + 9 = 25#2
x² + 19x + c, has a factor of (x + 7).
It means the equation:
x² + 19x + c = 0 has one root of x₁ = -7.Sum of the roots:
x₂ + (- 7) = -19/1 x₂ = -19 + 7x₂ = -12Product of the roots:
x₂*(-7) = c-12*(-7) = cc = 84Find the diameter of a circle with an area of 240.25π square millimeters. Round to the nearest tenth.
Answer:
D = 31 mm
Step-by-step explanation:
The area of a circle, A = 240.25π sq mm
We need to find the diameter of a circle.
The formula for the area of a circle is given by :
[tex]A=\pi r^2\\\\r=\sqrt{\dfrac{A}{\pi}}[/tex]
If D is the diameter of the circle, D = 2r
So,
[tex]\dfrac{D}{2}=\sqrt{\dfrac{A}{\pi}} \\\\D=2\times \sqrt{\dfrac{A}{\pi}} \\\\=2\times \sqrt{\dfrac{240.25\pi }{\pi}}\\\\=2\times 15.5\\\\=31\ mm[/tex]
So, the diameter of the circle is equal to 31 mm.