Answer:
∠2 = 41°
Step-by-step explanation:
This is because, all three interior angles in a triangle will have a sum of 180 degrees.
So given that we have two angles, 90 degrees(right angle) and 49 degrees, we can replace angle 2 as our unknown value(a variable) and make it equal to 180 degrees then solve for x;
49 + 90 + x = 180
139 + x = 180
-139 -139
x = 41°, ∠2 = 41°
Can someone please help me with the problem .3 x 5/24?
Answer:
1/16
Step-by-step explanation:
start with
3/10 times 5/24 and simplify till you get 1/2 times 1/8 which is 1/16
Answer:
0.0625 or 1/16
Step-by-step explanation:
1. Multiply fractions, a x b/c
When you a x b/c , you would do 0.3 x 5 /24, wich would be 1.5/24
0.3 x 5 = 1.5
2. Simplify 1.5/24.
Change 1.5 to 15/10
To get 15/10, you do 1.5 x 10 over 10, witch would be 15/10 , because 1.5 x 10 is 15.
3. Simplify 15/10
15/10, you can divided both by 5, witch would be 15/5 , 3 and 10 divided by 5 witch would gives you 2, hence 15/10 simplfies to 3/2
4. Divided 3/2 by 24 , which would give you 1/16
I really need help quick
y = x² -4x
find values of x when y=2
with explanation please
Answer:
[tex]\sf x=2+\sqrt{6},\:x=2-\sqrt{6}[/tex]
Explanation:
[tex]\sf y = x^2 -4x[/tex]
given that y = 2
[tex]\sf x^2 -4x = 2[/tex]
[tex]\sf x^2 -4x -2 = 0[/tex]
using quadratic formula:
[tex]\sf x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{2a} \ \ \ when \ ax^2 + bx + c = 0[/tex]
[tex]\rightarrow \sf x_{1,\:2}=\dfrac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4\cdot \:1\cdot \left(-2\right)}}{2\cdot \:1}[/tex]
[tex]\rightarrow \sf x_1=\dfrac{-\left(-4\right)+2\sqrt{6}}{2\cdot \:1},\:x_2=\dfrac{-\left(-4\right)-2\sqrt{6}}{2\cdot \:1}[/tex]
[tex]\rightarrow \sf x=2+\sqrt{6},\:x=2-\sqrt{6}[/tex]
in decimals:
[tex]\rightarrow \sf x=4.45 , \ -0.45[/tex]
I need help please. I don't understand and I need this to graduate
Answer:
(a, b, c) = (7, 2, -4)
Step-by-step explanation:
The fractions are added in the usual way, and the result simplified. That involves finding a common denominator, and expressing each fraction in terms of it.
Here the denominators have no factors in common, so the common denominator is their product. That common denominator is the difference of squares, a "special product."
[tex]\dfrac{3x}{x+2}+\dfrac{4x}{x-2}\\\\=\dfrac{3x}{x+2}\cdot\dfrac{x-2}{x-2}+\dfrac{4x}{x-2}\cdot\dfrac{x+2}{x+2}\\\\=\dfrac{3x(x-2)+4x(x+2)}{(x+2)(x-2)}\\\\=\dfrac{3x^2-6x+4x^2+8x}{x^2-4}\\\\=\boxed{\dfrac{7x^2+2x}{x^2-4}}\qquad\text{a=7, b=2, c=-4}[/tex]
A plant nursery is having a sale. Potted begonias are marked down 27%, and tomato seedlings are marked down 35%. If you pay $6. 57 each for two potted begonias and $2. 60 each for three tomato seedlings, how much did you save? a. $3. 83 b. $5. 31 c. $6. 92 d. $9. 06 Please select the best answer from the choices provided A B C D.
Answer:
I believe the answer is D. which is $9.06
Step-by-step explanation:
A rectangular garden is divided into two sections as shown.
The diagonal of the garden, which is twice the length of the shorter edge of the
garden, is 10 feet. How long is the length of the longer edge of the garden?
Step-by-step explanation:
Pythagoras (for right-angled triangles) :
c² = a² + b²
c being the Hypotenuse, the side opposite of the right angle. and that would be here the diagonal.
c = diagonal = 10 ft
therefore, the width of the rectangle is 10/2 = 5 ft
10² = 5² + b²
100 = 25 + b²
b² = 75
b = length = sqrt(75) = 8.660254038... ft
Find the value of x.
B
C(154°)
A
A
A recipe for rice pudding calls for 2 1/2 cups of milk. The recipe makes 5 servings. How many cups of milk are needed to make 8 servings?
Sam has sewn three square tablecloths of different sizes. He determines the length of the diagonal of each square tablecloth.
The yellow tablecloth has a diagonal of √12 feet. What is the length of the diagonal of this tablecloth, to the nearest hundredth of a foot?
Answer:
Step-by-step explanation:
the square root of 12 is 3.4 so the answer is 3.4
Find the area.
5 cm
5 cm
16 cm---
7 cm
14 cm
Answer:
if it is area of triangle it would be 49
Step-by-step explanation:
What is the area of the following trapezoid?
Step-by-step explanation:
formula for trapezoid or trapezium=h/2 × (a+b)
1.5/2 ×(2+7)
0.75 ×9
3.25msquare
Is it a function or no it’s not a function ?
Answer:
A linear function is a function whose graph is a straight line. The line can't be vertical, since then we wouldn't have a function, but any other sort of straight line is fine.
Step-by-step explanation:
Pls, choose me as brainliest!
a way to check for the graph of a function is by using the vertical line test, if vertical lines hit the graph only once, then the graph is the graph of a function. Check the picture below.
select the three values that are part of the solution set of the inequality × ≥ 15
A) 6
B) 8
C) 15
D) 24
E) 32
I need help right now! pls
Answer:
x = 80
Step-by-step explanation:
Because of the parallel lines and the transversal to the left,
x + 67 = 147
x = 80
Answer:
80°
Step-by-step explanation:
I have added some letters for ease.
wyzu is an interior angle. Therefore ∡wyz + ∡yzu = 180°
∡yzu + 147° = 180°
∡yzu = 180°-147
∡yzu = 33°
∡yzu + x° + 67° = 180° ( Supplementary Angle )
33° + x° + 67° = 180°
x° + 100° = 180°
x° = 180° - 100°
x° = 80°
Rami's family is planning a trip. They are trying to decide whether to use savings or credit to pay for the trip. Which statement describes a benefit of paying for the trip with savings instead of credit? Rami's family will pay the same amount using savings or credit. Rami's family will pay less if they use savings instead of credit. Rami's family will be able to take the trip sooner if they use savings instead of credit. Rami's family will pay more if they use savings instead of credit.
Rami's family will pay less if they use savings instead of credit.
Step-by-step explanation:
Took the test 8th grade K12
Wen is factoring the polynomial, which has four terms. 6x3 – 12x2 7x – 14 6x2 (x – 2) 7(x – 2) Which is the completely factored form of his polynomial? (6x2 7) (x –2) (6x2 – 2) (x 7) (6x2 2) (x – 7) (6x2 – 7) (x 2).
The completely factored form of the Wen's polynomial, which has the four terms initial, is,
[tex](6x^2+7)(x-2)[/tex]
What is the factor of polynomial?The factor of a polynomial is the terms in linear form, which are when multiplied together, give the original polynomial equation as result.
Wen is factoring the polynomial, which has four terms.
[tex]6x^3 - 12x^2+ 7x - 14[/tex] '
Take out the greatest common factor from the equation and make separate groups as,
[tex]6x^2(x - 2)+ 7(x - 2)\\(x-2)(6x^2+7)[/tex]
Rearrange the above equation as,
[tex](6x^2+7)(x-2)[/tex]
Thus, the completely factored form of the Wen's polynomial, which has the four terms initial, is,
[tex](6x^2+7)(x-2)[/tex]
Learn more about factor of polynomial here;
https://brainly.com/question/24380382
Answer:
A
Step-by-step explanation:
Trust me
Unit 11 radicals homework 4 multiplying radicals
In order to multiply radicals, the following are needed:
Make sure that the radicals have the same index. Multiply the numbers under the radical signs.Simplify the radical expressions. How to multiply radicals?It should be noted that the radical symbol represents the square root of a number and this can be found in algebra.
To multiply radicals, they have to have the same index. In this case, the index is the small number written on the uppermost line in the radical symbol.
Next, simply multiply the numbers under the radical signs and keep them there.
Lastly, if you've multiplied the radicals, they can be simplified to perfect squares.
Learn more about radicals on:
https://brainly.com/question/565192
PLEASE HELP ILL MARK BRAINIEST. Gustav is making a patio in his backyard. He pours cement in a rectangular shape that has a base that is 11 feet longer than its height. What will be the area and perimeter of his patio?
Step-by-step explanation:
Let b be base and h be height
b = 11+h
Then the area would be hx b = h(11+h) = 11h + h^2
Perimeter = 2h + 2b
= 2h + 2(11+h)
= 2h + 22 + 2h
= 4h + 22
Find the missing number so that the equation has infinitely many solutions.
3x + 20 = 4x + __ - x
An incident ray strikes a piece of diamond at an angle of 40. 5 degrees. The index of refraction of air is 1. 0003 and the index of the refraction of diamond is 2. 42. What is the angle of refraction? degrees.
The angle of refraction is 15.6 deg.
We have given that An incident ray strikes a piece of diamond at an angle of 40. 5 degrees.
What happen when light passes through one medium to another medium?When a ray of light passes from medium 1 to medium 2, the refractive index of medium 2 with respect to 1 is the ratio of the absolute refractive index of medium 2 and medium 1
[tex]1n_{2}=\frac{^{n_{1}}}{n_{2}}[/tex]
When light passes from air into diamond, with the given values of refractive indices,
[tex]an_{d}=\frac{^{n_{d}}}{n_{a}}=\frac{2.42}{1.0003} =2.4193[/tex]
According to Snell's law,
[tex]an_{d}=\frac{^{sini}}{sin r}[/tex]
[tex]< br/ > sinr=an_{d}=\frac{^{sini}}{sin r}=\frac{sin(40.5)}{2.41930} =0.2684[/tex]
[tex]< br/ > r=arcsin(0.2684)=15.57 deg[/tex]
The angle of refraction is 15.6 deg
To learn more about the angle of reflection visit:
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2 sin x cos x = tan x
Answer:
If [tex]sin x = 0[/tex] we get [tex]2 (0) (\pm1) = 0[/tex] which is true. so we have a first set of solutions given by
[tex]x= 0; x = \pi[/tex];
Else, if [tex]sin x \ne 0[/tex] we can divide both sides by it and we get
[tex]2 cos x = \frac 1 {cos x} \rightarrow 2cos^2x =1 \rightarrow cos^2x =\frac12\\cos x= \pm \frac{\sqrt2}2[/tex]
Which gives us a second set of solutions given by [tex]x= \frac{\pi}4;x= \frac{3\pi}4; x= \frac{5\pi}4;x= \frac{7\pi}4[/tex];
We can group all solutions (doesn't matter, but it's more elegant!) by writing
[tex]x= k\frac{\pi}4; k\in \{0,1,3,4,5,7\}[/tex]
READ THE PROBLEM WITH UNDERSTANDING AND SHOW THE SOLUTION
1, if I bought(2x+4) ballpens which cost(5x+1)pesos each,how much will I pay for it?
2. A box is (xx+1)cm by(x+2)cm. What is the volume of the box?
3. Eaxh book costs(15a^2b^3)pesos each. How much will(2a) of books cost?
4. Five times a number increased by 8 is 33. What is the number?
5. The product of a number and -8 gives eight times the sum of that number and
36. Find the number
Answer:
Step-by-step explanation:
1) the equation would be:
(2x+4)x(5x+1) because if the amount of ballpens are (2x+4) and the ballpens are $(5x+1) each, you would multiply them.
this is the expanded version of (2x+4)(5x+1)
{10x^2 + 2x + 20x + 4
10x^2 + 22x + 4}
2) (x^2 +1)(x+2) are multiplied to find the volume of the box
So when expanded it looks like this:
{x^3 + 2x^2 + x + 2}
3) (15a^2b^3) would be multiplied with (2a). This is because to find the total you would times the numbers.
so when expanded:
(15a^2b^3)(2a)
{(15a^3)(2ab^3)}
4) 5X(x+8)=33
5x+40=33
5x=33-40
5x=-7
X= -7/5
5) x-8=8x
8x-x = -8
7x=-8
X=-8/7
Hope this helps :)
-3x+3=-7x-1 and you solve for x
Answer:x=-1
add 1 to 3 to get 4, add 3 to -7 to get -4, divide both sides by -4
Answer:
-1[tex] \: [/tex]
Step-by-step explanation:
Given Equation,
[tex] \\ {\longrightarrow \qquad{ \sf{-3x+3=-7x-1}}}\\ \\ [/tex]
Adding 7x to both sides we get,
[tex]{\longrightarrow \qquad{ \sf{-3x+3 + 7x=-7x-1 + 7x}}}\\ \\ [/tex]
[tex]{\longrightarrow \qquad{ \sf{4x+3=-1}}}\\ \\ [/tex]
Subracting -3 from sides we get,
[tex] \\ {\longrightarrow \qquad{ \sf{4x+3 - 3=-1 - 3}}}\\ \\ [/tex]
[tex]{\longrightarrow \qquad{ \sf{4x=-4}}}\\ \\ [/tex]
Dividing both sides by 4 we get,
[tex] \\ {\longrightarrow \qquad{ \sf{ \frac{4x}{4} = \frac{ - 4}{4} }}}\\ \\ [/tex]
[tex]{\longrightarrow \qquad{ \sf{x=-1}}}\\ \\ [/tex]
b. a cylinder with radius 3 inches and height 4 inches
What is the volume in cubic inches?
The volume of the cylinder is [tex]\pi r^{2}h[/tex]
r: radius --> 3 inchesh: height --> 4 inchesVolume = [tex]\pi 3^{2} * 4=113.097[/tex] cubic inches (approximated)
Hope that helped!
5. A heptagon has interior angles that
measure 109°, 143, 120°, 152°, 117°, and 84°.
What must be the measure of the remaining
angle?
PLS HELP ME i HAVE LIKE 7 pages of math to do by myself!!!
Answer:
120⁰
Step-by-step explanation:
thank me later good bye
There are 15 boys in a class with 14 girls. Find the probability of selecting a girl then a boy
Answer:
14/29
Step-by-step explanation:
Answer:
total numbers of class = 15+14 =29
and number of girls in the class is 14girls
while probability = number of possible outcome
number of required outcome
therefore 14/29 is the probability of selecting
a girl than a boy
find the mode of 8,6,7,9,7,0,2,3,5,7,8,9,69
Answer:
Mode...
7
Step-by-step explanation:
To find the mode, order the numbers lowest to highest and see which number appears the most often.
and in the list...
8,6,7,9,7,0,2,3,5,7,8,9,69
7 is being repeated.
so mode is 7
Hope it helps!!!!!!!!brainliest pls!!!!!!!!you can make 7 drinks with one coconut how many can you make if you have 8 coconuts
Answer:
56 drinks
Step-by-step explanation:
7 drinks = 1 coconut
x drinks = 8 coconut
cross multiply
x drinks = 7 × 8
x drinks = 56
so you can make 56 drinks with 8 coconuts
Answer:
One coconut = 7 drinks
Eight coconuts = X drinks
So set up the equation;
Drinks 7 x________ _________ = _________, solve for x:-
Coconuts 1 87/1 = x/8
*8 *8
56 = x, 56 drinks can be made with 8 coconuts.
Part J Using the method of splitting a complex shape into smaller, standard figures, find the area of Vivian’s front yard using only points provided in the diagram.
By breaking the front yard into two rectangles, we will see that the area of the front yard is 915 ft^2
How to get the area of the front yard?
The front yard is the green part of the map, we can break this into two rectangles.
One of the rectangles measures 35ft by 25ft, then its area is:
A = 35ft*25ft = 875 ft^2
The other rectangle (in the part that goes from H to Q) has a length of 8ft and a width of 5ft, then its area is:
A' = 8ft*5ft = 40ft^2
The total area of the front yard is the sum of the two that we got above:
area = A + A' = 875 ft^2 + 40ft^2 = 915 ft^2
If you want to learn more about areas, you can read:
https://brainly.com/question/24487155
let u=lnx and v=lny. write ln(x2y5) in terms of u and v
Answer:
10inxy
Step-by-step explanation:
substitute U = ln x, u= ln y into
in(×2y5) and calculate
PLASE HELP PLEASE HELP PLEASE HELP PLEASE HEL[P SOS OSSSOS
GOD BLESDS YOU
Answer:
Income : £270
Expenditure:£204
profit: £66