Answers
Answer:
it is a 60 30 90 triangle so basically 2y is = x
21² + y² = x²
441 + y² = x²
y = x/2 (2y = x)
441 + x²/4 = x²
4x² = 1764 + x²
3x² = 1764
x = exact is 24.248711306 simplied square root would just be 14√3
2y = 14√3
y = 7√3
exact wouldd be 12.124355653
Related Questions
You have $120. You spend 75% of your money. How much did u spend?
Answers
Answer:
$90
Step-by-step explanation:
$120 x .75 = $90
What is the value of d in the equation?
Answers
Answer:
Option B. 8
Step-by-step explanation:
[tex]1 \frac{3}{4} d = 14[/tex]
[tex] \frac{7}{4} d = 14[/tex]
[tex]d = 14 \times \frac{4}{7} [/tex]
[tex]d = 8[/tex]
Hence, required value of d is 8.
if f(x) = x2+x, find f(- 3)
=
0-12
03
6
Answers
Answer:
-24
Step-by-step explanation:
Pls help will give branliest
Answers
Answer:
7x² - 26x + 9
Step-by-step explanation:
(g(x)²) = (3x - 2) (3x - 2)
(g(x)²) = 9x² - 6x - 6x + 4
(g(x)²) = 9x² - 12x + 4
(9x² - 12x + 4) - (2x² + 14x - 5) = 7x² - 26x + 9
I will give brainliest if correct !!
Answers
Answer:
45
Step-by-step explanation:
The radius of a circle is 2 millimeters. What is the circle's area?
r=2 mm
Use 3.14 for .
sanare millin
Answers
Answer:
12.56 mm²
Step-by-step explanation:
[tex]A=\pi r^{2}[/tex]
Plug the given values into the area equation
[tex]A=3.14*2^{2}\\A=3.14*4\\A=12.56[/tex]
Therefore, the area of the circle is 12.56 mm².
I hope this helps!
Jessica has 180 inches of ribbon. How many yards of ribbon does she have?
15 yards
5 yards
10 yards
60 yards
Answers
Answer:
5 yards
Step-by-step explanation:
1 yard = 36 inches
yard to inches = multiply by 36
inches to yard = divide by 36
180/36 = 5 yards
3/5 of the students in a classroom are girls if there are 10 boys in the class about how many total students are there
Answers
Answer:
25
Step-by-step explanation:
25 students total.
3/5 = 15 (Girls)
2/5 = 10 (Boys)
Answer:
25 students in total..........
What is the total cost on a pair of shoes costing $48.00 when the tax rate is
4.35%?*
Answers
Answer:
$50.09
Step-by-step explanation:
48 increase 4.35% =
48 × (1 + 4.35%) = 48 × (1 + 0.0435) = 50.088
Help! Will mark brainliest
Answers
Answer:
24
Step-by-step explanation:
just multiply 2 on both sides
CAN SOMEONE TELL ME THE ANSWE PLEASEEE!!
Answers
Answer:
C
Step-by-step explanation:
it would be 6 something
HELP ME PLEASE WITH A P E X
Answers
Answer: 2
Step-by-step explanation:
Answer: D
Step-by-step explanation: It's 3 by the pythagorean theorem.
Leo had a $30 gift card to use at a coffee shop. He used the entire balance to buy regular-sized coffees, which cost $2, and large coffees, which cost $3. If he bought 13 coffees in total, how many large coffees did he buy?
Select all that apply.
A. 2x+3y=30
B. 2x+3y=13
C. x+y=13
D. x+y = 30
Answers
Answer:
B
Step-by-step explanation:
Answer 4
If he bought 4 large coffees that means he spent $12 on them. that leaves $18. Which means he can buy 9 regular sized coffees. All together thats 13 coffees.
Step-by-step explanation:
10 divided by 3 3/4
Please help Im lost and need this
Answers
Answer:
2 2/3
Step-by-step explanation:
10 / 3 3/4 =
2 2/3
Hope that helps!
Solve For X. Solve similar triangles (advanced)
Answers
7^2 +6^2
49+36 = 85
Radical85 = 9.21
So x will be 3.9
The value of x in the given similar triangles ADB and BCE is 4.5.
To solve for x in the given similar triangles ADB and BCE, we can set up the proportion of corresponding sides:
In triangle ADB, we have:
AB/BD = x/DE
Substitute the given values:
3/4 = x/6
Now, cross-multiply and solve for x:
3 * 6 = 4x
18 = 4x
x = 18/4
x = 4.5
So, the value of x is 4.5.
To know more about similar triangles, refer here:
https://brainly.com/question/29731302
#SPJ6
Kim read bbooks last month. This month she read 16 books. Which expression shows the total number of books Kim has read
in the past two months?
Answers
Answer:
total # books read = b + 16
Step-by-step explanation:
SOMEONE PLEASE HELP! ITS ALMOST DUE!
Answers
Answer and Step-by-step explanation:
For this triangle, to find x, we will use the cosine trigonometric function.
cosine functions look like this:
[tex]cos(\theta) = \frac{adjacent}{hypotenuse}[/tex]
(The weird looking symbol is called theta, and represents an angle measurement)
Plug in the values into the equation.
cos(42) = [tex]\frac{x}{15}[/tex]
Multiply both sides by 15.
15(cos(42)) = x
Plug into a calculator.
11.1472 is the answer.
#teamtrees #WAP (Water And Plant)
Answer:
i think 315
Step-by-step explanation:
Use the graph of the polynomial
function to find the factored form of
its related polynomial. Assume it
has no constant factor
Answers
Answer:
The factored form of the polynomial is [tex]y = (x-2)\cdot (x+1)[/tex].
Step-by-step explanation:
According to the graph, we have a second order polynomial with a vertical axis of symmetry. The standard form of the polynomial is:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.
[tex]y[/tex] - Dependent variable.
[tex]a[/tex], [tex]b[/tex], [tex]c[/tex] - Coefficients.
We can obtain the solution of the polynomial by knowing three distinct points. From graph we know that the curve pass through the following three points: [tex](x_{1},y_{1}) = (-1, 0)[/tex], [tex](x_{2},y_{2}) = (0, -2)[/tex], [tex](x_{3},y_{3}) = (2,0)[/tex]. Three linear equations are constructed:
[tex]a^{2}-b+c = 0[/tex] (2)
[tex]c = -2[/tex] (3)
[tex]4\cdot a + 2\cdot b + c = 0[/tex] (4)
The solution of this system is [tex]a = 1[/tex], [tex]b = -1[/tex] and [tex]c = -2[/tex]. Then, the polynomial in standard form is [tex]y = x^{2}-x-2[/tex]. By factorization, we find that factored form is:
[tex]y = (x-2)\cdot (x+1)[/tex] (5)
f(x) = 4x² + 7x – 18
Find f(-9)
Answers
Step-by-step explanation:
f(x) = 4x² + 7x - 18
f(-9) = 4 * (-9)² + 7 * (-9) - 18
= 324 - 63 - 18
= 243
Hope it will help :)
Can someone help me ASAP plz
Answers
Answer:
See attached picture
Step-by-step explanation:
16
27
Find the exact value of z.
Answers
Answer:
Step-by-step explanation:
There is no question.
Pls help me, I'll give brainliest
Answers
First take and rewrite the equation
(8x^6y^12)^1/3
Use power to power rule by multiplying and you will get 2x^2y^4
Hope this helps
-2x - y = 1
-6x=3y+3
Answers
Answer: All Real Number
Step-by-step explanation:
This is a system of equation, and generally, there are three ways to solve:
eliminationsubstitutionaugmented matrixHere, we are going to use elimination
------------------------------------------------------------------------------------
Given
-2x-y=1
-6x=3y+3
Put them in the same order
-2x-y=1
-6x-3y=3
Multiply 3 on both sides for the first equation
-6x-3y=3
-6x-3y=3
We subtract the first equation from the second equation
0=0
The answer will be All Real Numbers, which means any real number will fit this equation. In the graphing method, these two equations will overlap each other.
Hope this helps!! :)
Please let me know if you have any questions
f(x) = 3x + 8
fl-1) = ?
Answers
Answer:
yes
Step-by-step explanation:
why did I do this because I need points
Each box on this grid represents one square inch. Roger cut out a quilt block pattern and placed it on the grid (Square A). From the
pattern he made a larger sized quilt block (Square B). What is the ratio of the area of Quilt A to the area of Quilt B?
A.1:4
B.1:2
C.4:1
D.1:1
Answers
Answer:
1:4
Step-by-step explanation:
Quilt A covers 4 squares. Quilt B covers 16 squares.
4/16 = 1/4
So, the ratio of A to B is 1:4.
Answer:
A.1:4
Step-by-step explanation:
pls, tell me if wrong have a good night/day <3
(4 x 5)2 - 6 + 3 = ?
Answers
Answer:37
Step-by-step explanation:You multiply the ones that are in the parenthes
The Answer is 37, hope this helps.
Help me pls! I’ll give u 15 points!
Answers
Answer:
add 15 by 19 by 12 to get 46 than cut it in half to get 23!
Hope i helped please mark brainiest I need it!
I will give brainliest if correct !!
Answers
Answer:
c-11
Step-by-step explanation:
Answer:
Step-by-step explanation:
Megan is planning a surprise dinner for her best friend. She has a set budget of $260. The venue charges
a flat fee of $25 for the reservation and they are going to charge her $15 a person. How many people can
Megan invite at most?
Answers
Answer:
15 people at most
Step-by-step explanation:
25+15+15+15+15+15+15+15
+15+15+15+15+15+15+15+15=250
Solve the system by substitution.
y = x + 35
Y = 8x
Answers
Answer:
(5, 40)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityAlgebra I
Coordinates (x, y)Terms/CoefficientsSolving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = x + 35
y = 8x
Step 2: Solve for x
Substitution
Substitute in y: 8x = x + 35[Subtraction Property of Equality] Subtract x on both sides: 7x = 35[Division Property of Equality] Divide 7 on both sides: x = 5Step 3: Solve for y
Define original equation: y = 8(5)Multiply: y = 40