Answer:
2x+6
Step-by-step explanation:
(-x+4)+(3x+2) remove ()
-1x+4+3x+2 combine like terms
2x+6
Which graph represents the solution set of the inequality 3x + 2y < 4?
Answer:
the answer is B any questions
Please help and show workings
Given:
In an isosceles triangle,
One base angle = (4x-15)°
Vertex angle = 95°
To find:
The value of x.
Solution:
Let the triangle be ABC.
We have,
[tex]m\angle A=95^\circ[/tex]
[tex]m\angle C=(4x-15)^\circ[/tex]
Since ABC is an isosceles triangle and AB=AC, therefore, the base angles are equal.
[tex]m\angle B=m\angle C=(4x-15)^\circ[/tex]
Using angle sum property of triangles, we get
[tex]m\angle A+m\angle B+\angle C=180^\circ[/tex]
[tex]95^\circ+(4x-15)^\circ+(4x-15)^\circ=180^\circ[/tex]
[tex](8x+65)^\circ=180^\circ[/tex]
[tex](8x+65)=180[/tex]
On further simplification, we get
[tex]8x=180-65[/tex]
[tex]8x=115[/tex]
[tex]x=\dfrac{115}{8}[/tex]
[tex]x=14.375[/tex]
Therefore, the value of x is 14.375.
Find the value of x and y
Answer:
x = 8
y = 29
Step-by-step explanation:
By verticle angles theorem, the angles with the measure of ( 4x + 17 ), and the angles with the measure of ( y + 20 ) are equal.
Verticles angles theorem states, when two lines intersect, there are four angles formed. The angles opposite to each other will have the same measure or congruent measures.
Hence one can say that;
4x + 17 = y + 20
Inverse operations;
4x + 17 = y + 20
-17 -17
4x = y + 3
-3 -3
4x - 3 = y
Assuming that lines "m" and "n" are parallel, then the angles with the measure of ( 5x + 9 ) and the angles with the measure of ( y + 20 ) are congruent.
When two lines are parallel and are intersected by another line (transversal line), then the angles that are alternate and interior are congruent, in other words, the same measure.
Based on that, one can say;
5x + 9 = y + 20
Earlier it was found that;
y = 4x - 3
Now substitute that into the previous equation, and solve using simplification and inverse operations;
5x + 9 = 4x - 3 + 20
5x + 9 = 4x + 17
-9 -9
5x = 4x + 8
-4x -4x
x = 8
Back solve to find y
y = 4x - 3
y = 4(8) - 3
y = 32 - 3
y = 29
Which of the following below is a function?
Answer:
i don't know sorry
Step-by-step explanation:
Which Expression is equivalent to (2^3)^-5?
1/2^15
1/2^8
2^8
2^15
Answer:
Answer: 1/2^15
Step-by-step explanation:
Hope this helped
math!!!!!!!!!!!!!!!!!!
Answer:
24 blocks
Step-by-step explanation:
There are 9 blocks to the mall, 6 blocks to the movie theater, and then he walks 9 blocks to the store.
So Simply add them together and you will get 24.
Answer:
24 blocks
Step-by-step explanation:
There are 9 blocks to the mall, 6 blocks to the movie theater, and then he walks 9 blocks to the store.
Step-by-step explanation:
HELP PLS
Find the solution of this system of equations
8x - 4y = -32
- 3x + 4y = 42
Answer:
(2,12) or x = 2 y = 12
this is correct trust
2/3 × 4/7 help mee!!!!!!!
Answer:
0.38095238095
Step-by-step explanation:
Answer:
8/21
Step-by-step explanation:
My last math question! I need help. I'm not good at math so I'm relying on who ever do this to do so correctly!!!!
Answer:
c
Step-by-step explanation:
HELP ON ME-I NOT GET THIS PROMBLE PLEASE
Answer:
Step-by-step explanation:
For number 2 first thing you do is take (3,3)
( -3,7)
And y1-y2
x1-x2
the equation would be y= -2/3 x + 5
I can't really see the other point for number 3
x^3 - x^2 + x / x^3 + 1 simplified
The diameter of the circle above is 8 cm. What is the circumference of the circle? (Use = 3.14.)
Answer:
i think it's 25.12.
Step-by-step explanation:
because you multiple 2x3.14×4
the ratio of girls to boys in Kevin's class is 2 to 3. If there are 10 girls, how many boys are there?
Answer:
there are 15 boys in kelvin's class
Step-by-step explanation:
Given: AD || BC and AD ≅ BC
Prove: AB || CD
Answer:
Statement 1: it is a parallelogram
Reason 1: if one pair of sides of a quadrilateral are parallel and congruent sides, then it is a parallelogram.
Statement 2: AB is parallel to CD
Reason 2: in a parallelogram opposite sides are parallel.
QED
-3x+6<27?
Solving Linear Inequalities.
While solving, you can treat inequalities the exact same as you would treat equations. Pretend the inequality sign is an equals sign. Now solve for x.
-3x + 6 < 27
-3x < 21
3x < -21
x < -7
Does anyone know why I only got 2/3 marks, and can you explain how to get 3 marks please. Please answer.
Answer:
294cm²
Step-by-step explanation:
You didn’t convert from meters to centimeters.
It was 2.94m².
That equals 294cm².
Graph the following system:
y=5x+ 3
Y=1/3x-3
Answer:
Step-by-step explanation:
I hope this helps
Step-by-step explanation:
here's a tip if u have questions asking about grapihing those kinds of questions
use desmos graphing calculator it really helps and all u do is insert the equation and it graphs it for uu
hope this helps!!
what is the value of x?
Answer:The answer is X=-27 I am very sure
Step-by-step explanation:
Solve for x. Round to the nearest tenth if necessary (will give brainliest please help!!!)
Answer:
41,1 I installed the solution. good work
A doorway is 8 feet high and 4 feet wide. a square piece of plywood needs to be moved through the doorway the plywood is 10 feet long and 10 feet wide. Will the piece of plywood fit through the door if it is tilted diagonally?
Answer: No, because the length of the diagonal is close to 9 feet.
Step-by-step explanation:
As an estimation we are told 5 miles is 8 km.
Convert 70 miles to km.
km
Answer: 112 km
=====================================================
Work Shown:
(5 miles)/(8 km) = (70 miles)/(x km)
5/8 = 70/x
5*x = 8*70 ... cross multiply
5x = 560
x = 560/5 .... divide both sides by 5
x = 112
According to the given estimation, 70 miles converts to 112 km.
The more accurate conversion is approximately 70 miles = 112.65408 km, so this estimation isn't too far off.
plsss helppp
WILL GIVE BRAINLIEST
Answer:
I thinks it's point 2 and if it's wrong I am sorry for that
lee spent $26.85 for 3 yards of material what was the cost of 9 yards?
Answer:
$80.55
Step-by-step explanation:
Answer: $80.55
Step-by-step explanation:
First way:
3 yards cost $26.85
1 yard will cost $26.85 ÷ 3
26.85 ÷ 3 = 8.95
1 yard costs $8.95
9 yard will cost $8.95 × 9
8.95 × 9 = 80.55
9 yards cost $80.55
Second way:
3 yards cost $26.85
9 yards will cost $26.85 × 3
26.85 × 3 = 80.55
9 yards cost $80.55
Hope this helped!
0.75x — 13 = 2
What's the value of x
Answer:
The value of x is 20.
Step-by-step explanation:
The steps are :
0.75x - 13 = 2
0.75x = 2 + 13
0.75x = 15
x = 15 ÷ 0.75
x = 20
can anyone answer this question
Can Someone please help
What is the value of z?
Answer:
Step-by-step explanation:
Item 1:
Discount = Original price - discount price
= 22.50 - 13.50
= $ 9
Discount percentage = [tex]\frac{9}{22.50}*100\\\\[/tex]
= 40%
Discount percentage = 40%
Tax = 14.31 - 13.50 = $0.81
Tax% = [tex]\frac{0.81}{13.50}*100\\\\[/tex] = 6%
Tax percentage = 6%
Item 2:
Tax = 6% of 16.20
= 0.06 * 16.20
= 0.972
Tax = $ 0.97
Total price (including tax )= 16.20 + 0.97 = $ 17.17
x = $ 17.17
Item 3:
Discount = 40% of 32.50
= 0.4 * 32.50
= $ 13
y = 32.50 -13
y = $ 19. 50
Tax = 6% of 19.50
= 0.06 * 19.50
= 1.17
z = 1.17 + 19.50
Z =$ 20.67
Solve for x. Then find the side lengths of the triangle. If needed, round to the nearest tenth of a foot.
40 ft
Bx ft
6x ft
side lengths =
ft and
Answer:
The side lengths are 17.9 feet and 35.8 feet
Step-by-step explanation:
Given lengths are;
40 feet, 3x feet and 6x feet
As the given triangle is right angled,
a = 3x, b = 6x and c = 40
Using Pythagorean theorem;
[tex]a^2+b^2=c^2\\(3x)^2+(6x)^2=(40)^2\\9x^2+36x^2=1600\\45x^2=1600\\[/tex]Dividing both sides by 45
[tex]\frac{45x^2}{45}=\frac{1600}{45}\\x^2=35.55[/tex]
Taking square root on both sides
[tex]\sqrt{x^2}=\sqrt{35.55}\\x=5.96[/tex]
Side lengths = 3x = 3(5.96) = 17.9 feet
and
6x = 6(5.96) = 35.8 feet
Hence,
The side lengths are 17.9 feet and 35.8 feet
Answer:
x=6
Sides= 36 & 18
Step-by-step explanation:
What is the equation of the line that passes through the point (5,−2) and has a slope of -2/5
Answer:
y= -(2/5)x
Step-by-step explanation:
When you graph this line you can see it clearly passes through the point (5,-2)
Answer:
y + 2 = -2/5 (x - 5)
OR
y = (-2/5)x
Step-by-step explanation:
There are many ways you can find the equation.
There are two main ones, one called point-slope form, and the other called slope intercept form.
Point-slope form is easy. All you need a a point on the line, and the slope! Since they give you that in the question, all you need to do is plug things in.
Point slope form is y - [tex]y_{1}[/tex] = m(x - [tex]x_{1}[/tex])
x and y are any points. [tex]x_{1}[/tex] and [tex]y_{1}[/tex] are the points that the problem gives you. m is the slope.
The equation would be y + 2 = -2/5 (x - 5).
Slope intercept form is a bit harder. You need a point and the y-intercept.
Since you already have the slope, all you need to find is the y-intercept.
Slope intercept form is y = mx + b
x and y are the given points. m is the slope, and b is the y-intercept.
The y intercept is when the x value of a point is 0.
To find b, you can plug in the information you have, which is the point and the slope.
y = mx + b
-2 = (-2/5)(5) +b
-2 = -2 +b
b = 0
Since b is 0, the equation would just be y = (-2/5)x.
Matt says that 5 − 1 1/4 will be more than 4, since 5 – 1 is 4. Is Matt correct? Explain your answer. please and do step by step
Answer:
No
explanation:
You are subtracting one and some more, so its going to be less than 4