Answer:
Step-by-step explanation:
2x - 9y = 23
5x - 3y = -12x - 9y = 23
5x - 3y = -12x - 9y = 23
5x - 3y = -12x - 9y = 23
5x - 3y = -1
Which set of values could be the side lengths of a 30-60-90 triangle?
Answer:
A
Step-by-step explanation:
I think you are in geometry I learned this a little back...
It's hard to explain but basically one side is just (n) another is (n(square root sign))and another is (2n.)
So the answer Is a because in this case (n) is 4
using elimination, which variable would you choose to cancel out in the following system. explain your choice
Answer:
The x-variable
Step-by-step explanation:
if the first equation is multiplied by 3. The second one multiplied by 2, then. x-variable will be cancelled out
Rewrite the formula for the circumference of a circle, C=2πr, in terms of its diameter, d
there is an input box that has d=_______
Answer: D=Pie x C
Step-by-step explanation:
trust me and plz make me the brillienrttest
HELP- I CAN'T- I NEEDS HELP- FAST-
WHAT IS Z
Answer:
Z= 82
Step-by-step explanation:
Sawarasenaikimiwa⛓ shojonano?✨bokuwayarichinbicchinoosudayo
Answer: ?? What?
Step-by-step explanation:
Answer:
sawarasenaikimishoujonano?✨böKùwâ♀️ýARiçHiñBįCChïńOoSûDáYO
Step-by-step explanation:
yk, i really shouldn’t have watched this.
Please Help and thank you!!!
Answer:
volume
Step-by-step explanation:
volume = lxwxh
here's the question <3
Answer: C is correct meaning you are correct just did this.
Step-by-step explanation:
Calculate the distance between (6 -5i) and (1 + 3i) on the complex plane.
Answer:
21 + 13 i
Step-by-step explanation:
Multiply using the FOIL method, then combine the real and imaginary parts of the expression.
(x + 5)+(4x - 7)
adding and subtracting polynomials
Answer:
x+5+4x-7=0
5x-2=0
5x=2
x=2.5
Answer:
x+4x+5-7
5x-2
this is answer
What is the product?
(y^2=3y+7)(8y^2+y+1)
Answer: y = -2.29034486
Step-by-step explanation: brainliest?
Answer:
What is the product?
(y^2=3y+7)(8y^2+y+1)
Step-by-step explanation:
nnn
please answer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
d is the answer because the value decreases the longer you use it
What are the last two ?
Answer:
uhm
Step-by-step explanation:
The measure of one interior angle of a parallelogram is 30 degrees less than 9 times the measure of another angle. Find the measure of each angle.
Answer:
The interior angles of the parallelogram are either:
XXX
{
159
∘
,
21
∘
,
159
∘
,
21
∘
}
or
XXX
{
3
3
4
∘
,
176
1
4
∘
,
3
1
4
∘
,
176
1
4
∘
}
Explanation:
Case 1: The given relation applies to consecutive angles
Consecutive angles of a parallelogram add up to
180
∘
Let
a
and
b
be consecutive angles (measured in degrees) such that the given relation holds:
XXX
a
=
9
b
−
30
and since
a
+
b
=
180
→
b
=
180
−
a
XXX
a
=
9
(
180
−
a
)
−
30
=
1620
−
9
a
−
30
=
1590
−
9
a
XXX
10
a
=
1590
XXX
a
=
159
and
XXX
b
=
180
−
a
=
21
Case 2: The given relation applies to opposite angles
Opposite angles of a parallelogram are equal.
Let
a
be the measure (in degrees) of the referenced opposite angles (and
b
be the measure of the other two angles:
a
+
b
=
180
)
We are told
XXX
a
=
9
a
−
30
Therefore
XXX
−
8
a
=
−
30
XXX
a
=
3
3
4
XXX
b
=
180
−
a
=
176
1
4
Answer link
EZ as pi
Sep 25, 2016
The angles are
21
°
,
159
°
,
21
°
,
159
°
Explanation:
In a parallelogram, there are only two sizes of angle - two are acute and two are obtuse.
Opposite angles are equal .
Consecutive angles are supplementary because they are co-interior angle on parallel lines.
An additional solution to the one given by Alan P is using the fact that the sum of the interior angles of a parallelogram is 360°.
Let one angle be
x
The size of the other angle is given by
9
x
−
30
2
x
+
2
(
9
x
−
30
)
=
360
←
sum of the angles is 360°
2
x
+
18
x
−
60
=
360
20
x
=
420
x
=
21
°
The obtuse angles are each
180
−
21
=
159
°
The other option where the given angle is the opposite angle is described is well explained by Alan P.
Step-by-step explanation:
The interior angles of the parallelogram are 21° and 159° respectively.
What is parallelogram?
A parallelogram is defined as a quadrilateral in which both pairs of opposite sides are parallel and equal.
In a parallelogram opposite interior angles are equal and the angles on the same side of the traversal are supplementary (i.e) 180°
For the given situation,
The measure of one interior angle be [tex]x[/tex] and
Another angle was given as [tex]9x-30[/tex]°
⇒[tex]x+9x-30[/tex]°[tex]=180[/tex]°
⇒[tex]10x=180[/tex]°[tex]+30[/tex]°
⇒[tex]10x=210[/tex]°
On dividing [tex]10[/tex] on both sides,
⇒[tex]\frac{10x}{10}=\frac{210}{10}[/tex]
⇒[tex]x=21[/tex]°
So, another angle is [tex]9x-30[/tex] = [tex]9[/tex]×[tex]21-30[/tex]
⇒[tex]189-30[/tex]
⇒[tex]159[/tex]°
Hence we can conclude that the interior angles of the parallelogram are 21° and 159°.
Learn more about the interior angle of parallelogram here
https://brainly.com/question/8615842
#SPJ2
Attention everyone! Im going to keep using this site because i have learned that you should not quit when things get rough! From now on I will stand up for myself! If someone makes me uncomfortable i will report them! I will keep moving forward until i achieve success! I am proud to use brainly as my helper! :)
Answer:
ya!!! so true love the words!!!!
Please Help ASAP I’m confused
Answer: B. 200ft
Step-by-step explanation:
Pythagorean theorem so a^2+b^2+c^2 or 120^2+160^2=c^2 where c is the value for the diagonal so solving for c to get 200
Please help an explain work
I think it’s c?
Answer:
B. f(x) = -x + 2
Step-by-step explanation:
First, you find the point on the y-axis which is (0,2) in this problem.
This will be your b in y = mx+ b
Then, you'll find how many blocks you are moving or rise over run. Which is -1/1 or -1.
This will be your m in y = mx + b
But we don't write the 1 so it will just be -x
Now add all your numbers in the standered form (y = mx + b) to get y = -x + 2 or f(x) = -x + 2
There were 215 students who attended the school play. If there are a total of 250 students in the school, what percent of the students attended the play?
Answer:
86%
Step-by-step explanation:
you can multiply 250 by .86 to check the answer
hope this helps :)
Answer:
86%
Step-by-step explanation:
To find the percent that attended the play, divide 215 by 250
215/250
= 0.86
So, 86% of the students attended the play
Find the surface area of each figure. Round your answers to the nearest hundredth, if necessary
Answer:
Step-by-step explanation:
find the product (8x+2)(7x+4)
Answer:
It's in the doc below
Step-by-step explanation:
Hope it helps
Answer:
56x+32x+14x+8
Step-by-step explanation:
8x*7x=56x
8x*4=32x
2*7x=14x
2*4=8
Please help with this question.
Answer:
x = 4
Step-by-step explanation:
Label the points from A-F. I attached an image of how I labeled the points.
Notice that there are similar triangles here:
[tex]\triangle ABD \sim \triangle FED[/tex][tex]\triangle ACD \sim \triangle AEF[/tex]Set up proportions to find the values of x, y, and z.
[tex]\displaystyle \text{Equation I: }\frac{FD}{AD} = \frac{FE}{AB}[/tex][tex]\displaystyle \text{Equation II: } \frac{A F}{AD}=\frac{EF}{CD}[/tex]Let's make this problem simpler by incorporating only 2 variables instead of 3. Let's say that the total distance between the two poles is distance d. Instead of z, let's call it d - y.
Substitute known values or variables into the proportions.
[tex]\displaystyle \text{Equation I: } \frac{d-y}{d} = \frac{x}{6}[/tex][tex]\displaystyle \text{Equation II: }\frac{y}{d}= \frac{x}{12}[/tex]Cross-multiply and simplify Equation I.
[tex]6(d-y)=dx[/tex] [tex]6d-6y=dx[/tex]Cross-multiply and simplify Equation II.
[tex]12y=dx[/tex]We now have two equations that are equal to dx, so we can set them equal to each other.
[tex]6d-6y=12y[/tex]Add 6y to both sides of the equation.
[tex]6d=18y[/tex]Divide both sides of the equation by 6.
[tex]d=3y[/tex]We can substitute this value of d back into either Equation I or II. I am going to substitute d into Equation II.
[tex]\displaystyle \frac{y}{3y} = \frac{x}{12}[/tex]Cross-multiply and simplify the equation.
[tex]12y=3xy[/tex]Divide y from both sides of the equation.
[tex]12=3x[/tex]Divide both sides of the equation by 3.
[tex]4=x[/tex]The guylines from the top of one pole to the bottom of the other cross at the height of 4 ft off the ground.
Pamela's age is two times Jiri's age. The sum of their ages is 24. What is Jiri's age?
Answer:
Therefore, Pamela's age is 54, and Jiri's age is 27. When you add both ages, you get 81, so it is correct. Hope this solution helps.
Step-by-step explanation:
What is the degree of the polynomial f (x) = 23 – 25 – 10
6
3
10
5
Answer:
x=−12
Step-by-step explanation:
Let's solve your equation step-by-step.
x=23−25−10
Step 1: Simplify both sides of the equation.
x=23−25−10
x=23+−25+−10
x=(23+−25+−10)(Combine Like Terms)
x=−12
A golf cart priced at $5,600 was on slae for 20% off.The sales tax rate is 6%.What is the sale price of the golf cart,including tax?
Answer:
$4748.80
Step-by-step explanation:
First, find the cost with 20% off, by multiplying the price by 0.8
5600(0.8)
= 4480
Find the cost with tax, by multiplying this by 1.06
4480(1.06)
= 4748.8
So, the sale price, including tax, is $4748.80
investment A, save £160 per month for 2 years. 2.5% interest is added to the total amount saved. Investment B, invest £3600, compound interest is added at 3% each year. After two years, how much more is investment b worth than investment a?
y- 4/5=1
what does y equal to?
Answer:
y=1.8
Step-by-step explanation:
first change the fraction into a decimal.
4/5 =0.8
plus the 0.8 to both sides
y=1.8
Answer:
[tex]y - \frac{4}{5} + \frac{4}{5} = 1 + \frac{4}{5} \\ y = \frac{5 + 4}{5 } \\ y = \frac{9}{5} [/tex]
Pls help, Thx! Solve using the substitution method.
y = 2x - 4
6x - 3y = 12
help me please. i will give brainliest
Answer: 11.7
Explanation:
-1.7-(-13.4)=11.7
What value will make the equation true?
-2.1 - ?= -1
A 3.6
B
0.6
C -0.6
D
-3.6
Answer:
the answer is -1
Step-by-step explanation:
-2.1 - (-1) = -1.1
Triangle def is equilateral. If the perimeter of def is 36, the length of de is 5x-8, then what is the value of x
Answer:
4
Step-by-step explanation:
All the sides of an equilateral triangle are equal, hence the perimeter is expressed as P = 3s
s is one of the side length
Given DE = 5x - 8
P = 3DE
P = 3(5x-8)
36 = 3(5x-8)
36/3 = 5x-8
12 = 5x - 8
5x = 12+9
5x = 20
x = 20/4
x = 4
Hence the value of x is 4
I need a solution on how to do this!!!!
simplify fully
Answer:
[tex]\frac{x-5}{x-7}[/tex]
Step-by-step explanation:
Given
[tex]\frac{x^2-2x-15}{x^2-4x-21}[/tex] ← factor numerator and denominator
= [tex]\frac{(x-5)(x+3)}{(x-7)(x+3)}[/tex] ← cancel (x + 3) on numerator and denominator
= [tex]\frac{x-5}{x-7}[/tex]
Answer:
[tex]\frac{x-5}{x-7}[/tex] is the answer
Step-by-step explanation:
[tex]\frac{x^{2}-2x -15 }{ x^{2}-4x-21}[/tex]
Factorising,
[tex]\frac{x^{2}-5x+3x-15}{x^{2}-7x+3x-21 }[/tex]
[tex]\frac{x(x-5)+3(x-5)}{x(x-7)+3(x-7)}[/tex]
[tex]\frac{(x+3)(x-5)}{(x+3)(x-7)}[/tex]
[tex]\frac{x-5}{x-7}[/tex]