Answer:
alternate interior angles
amd lines are parallel
so 21x+4 and 23x-4 are congruent
-6t-7=17 what does t equal
Answer:
t=-4
Step-by-step explanation:
I know you don't care about any explanation, and just want the answer, but to get this, you can add 7 to both sides. Then you get -6t=24. Divide both sides by -6 and you get -4
Mary mixes white paint and blue paint in the ratio 2:3. She makes a total of 20 litres of paint. How much more blue paint does she need to add to the mixture so that the ratio of white paint to blue paint becomes 1 : 7?
Answer:
7 i believe, if not then sorry. bad calculations.
Step-by-step explanation:
Please answer the 2 blank ones I will give brainliest
Answer:
Horizontal lines have a slope of zero no matter where the line is graphed. This is because the rise of any horizontal line will always be zero, regardless of the x values.
Select all of the following that represent quadratic expressions:
A.3x(2)+ 2x
B.2x – 5
C.(x + 2)(x + 1)
D.X(3) +x+1
x to the forth power ÷ 3+9 when x=3
Answer:
36
Step-by-step explanation:
Ok, so the expression we are given is [tex]x^{4}[/tex] ÷ 3 + 9.
We know that x = 3, so we need to substitute 3 in as x.
So, now the expression looks like [tex]3^{4}[/tex] ÷ 3 + 9.
Now we can solve this expression.
First we need to figure out what [tex]3^{4}[/tex] is equal to.
1. [tex]3^{4}[/tex] = 81
We're left with 81 ÷ 3 + 9.
Next, we need to divide our 81 by our 3.
2. 81 ÷ 3 = 27
Our new expression is 27 + 9.
Last, we need to add our 27 and our 9 together.
3. 27 + 9 = 36
Our answer is 36.
So [tex]x^{4}[/tex] ÷ 3 + 9 when x = 3 is 36.
Feel free to give brainliest.
Have a great day!
What is the sum of 4.061 and 18.62?
Answer:
22.681
Step-by-step explanation:
1
4.061
+ 18.620
22.681
Hope this helps!! Have a wonderful day C:
I will give you branilest!
Zeno jumped 8 meters. Then he jumped half as far again (4 meters). Then he jumped half as far again (2 meters). So after 3 jumps, he was 8 + 4 + 2 = 14 meters from his starting place.
a. Zeno kept jumping half as far again. How far would he be after 4 jumps?
Answer:
15.875m
Step-by-step explanation:
8 + 4 + 2 + 1 + 0.5 + 0.25 + 0.125 = 15.875
Will mark brainliest!plz help
EXTRA POINTS!
Answer both questions...
Scientists discovered the ozone layer was depleting at a rapid rate. At the beginning of the study the ozone layer was 3 millimeters thick. Throughout the study it depleted at a rate of 0.04 Millimeters per week.
Which function can be used to find the thickness of the ozone layer in meteres x days sconce the study ?
A) T(x)=-0.04(x+3)
B) T(x)=0.04(x+3)
C) T(x)=0.04x+3
D) T(x)=-0.04x+3
Answer:
1. D
2. D
Step-by-step explanation:
Answer:
i thinks it's D im not so sure but i think it's D
Please help I’m stuck on this one!
Answer: The length of JK is 10.5 m
Step-by-step explanation:
Find the circumference C= dπ
C = 12π
C= 37.7
There are 360 degrees in a circle's circumference, so you can find the length of the arc by using the ratio of the arc to the whole circumference.
Multiply the Circumference by 100/360 (or 5/18 × 37.7)
The arc is 10.5 m
Given d = 1/2 at^2, solve for a.
A) a = t^2/ 2d
B) a = 2d/t^2
C) a = d - 1/2 t^2
D) a = 1/2t^2 - d
△MNP ≅ △TUS. Use the picture below to solve for the following: x, y, and m∠N.
Answer:
x = 32
y = 51
m∠N = 14°
Step-by-step explanation:
Given:
ΔMNP ≅ ΔTUS
By the property of similarity,
MN ≅ TU, NP ≅ US and MP ≅ TS
m∠M = m∠T = 142°,
m∠N = m∠U = (2x - 50)°
m∠P = m∠S = 24°
Since, m∠N = [180°- (m∠M + m∠P)]
(2x - 50) = 180 - (142 + 24)
2x - 50 = 14
2x = 64 ⇒ x = 32
Since, NP = US,
2x - y = 13
2(32) - y = 13
64 - y = 13
y = 51
m∠N = 180° - (142 + 24)°
= 14°
The value is x = 32 , y = 51 , and m∠N = 14°
Given that
ΔMNP ≅ ΔTUS.Based on the above information, the calculation is as follows:
Here we use the property of similarity,
So,
MN ≅ TU, NP ≅ US , and MP ≅ TS
Based on this
m∠M = m∠T = 142°,
m∠N = m∠U = (2x - 50)°
m∠P = m∠S = 24°
As
m∠N = [180°- (m∠M + m∠P)]
(2x - 50) = 180 - (142 + 24)
2x - 50 = 14
2x = 64
x = 32
As, NP = US,
2x - y = 13
2(32) - y = 13
64 - y = 13
y = 51
m∠N = 180° - (142 + 24)°
= 14°
Therefore the above are the answers.
Learn more: brainly.com/question/19359082
What is the volume of a cylinder with a radius of 1.5 inches and a height of 9 inches round your answer to the nearest hundredthWhat is the volume of a cylinder with a radius of 1.5 inches and a height of 9 inches round your answer to the nearest hundredth
Answer:
V = 63.62
Step-by-step explanation:
Answer: 63.62 cubic inches
Step-by-step explanation:
REMEMBER :: VOLUME OF CYLINDER = πr^2h
r= 1.5 in.
h= 9 in.
V= π (1.5)^2 (9)
V= π (2.25) (9)
V= π (20.25)
V~63.6172512...
nearest hundredth = 63.62 cubic inches
Help. Can somebody help me with this. Thank you.
Answer:
[tex]m\angle CAB=65^\circ[/tex]
Step-by-step explanation:
Angles and Lines
It's convenient to recall two basic principles of angles:
The sum of internal angles in a triangle is 180°
Two linear angles are supplementary, i.e. they sum 180°.
Angles ABC and CBD are linear. Since we know the measure of angle CBD, thus the measure of angle ABC is 180°-6x.
Now focus on the triangle. The sum of its internal angles is:
x + 40 + 3x + 10 + 180 - 6x = 180
Simplifying:
-2x + 230 = 180
Subtracting 230:
-2x = -50
Dividing by -2:
x = -50 / (-2) = 25
x = 25°
Now find the measure of angle CAB
[tex]m\angle CAB=x+40=25+40=65[/tex]
[tex]\mathbf{m\angle CAB=65^\circ}[/tex]
1
The area of a rectangular dog pen is 8-square feet.
2
2
If the width is 3 feet, what is the length, in feet?
11 What is most likely the equation of the graph below?
Answer:
f(x) = |x + 2|
General Formulas and Concepts:
Transformations Graph: f(x) = a|bx - c|+ d
a = vertical shrink/stretchb = horizontal shrink/stretchc = horizontal movement left/rightd = vertical movement up/downStep-by-step explanation:
Step 1: Define
We see a transformation from a parent function of the absolute value.
Parent Graph: f(x) = |x|
Step 2: Find equation of graph
We see the transformation moving horizontally 2 units to the left.
c = -2
f(x) = |x + 2|
Solve for X, Similar triangles
Answer:
x = √75
Step-by-step explanation:
We can write out all relations of each triangle here using the Pythagorean theorem (there are 3 triangles total). The triangles are ABD, BCD, and ABC.
For triangle ABD:
AB² = AD² + BD²
AB² = (AC - DC)² + BD²
y² = (15 - 5)² + BD²
y² = 100 + BD²
For triangle BCD:
x² = BD² + 5²
x² = BD² + 25
For triangle ABC:
15² = x² + y²
225 = x² + y²
From here we can substitute into the equation ABC. We can substitute x² and y² with our first and second equations.
225 = BD² + 25 + 100 + BD²
225 = 2BD² + 125
100 = 2BD²
50 = BD²
We don't need to solve for BD, we can substitute it into our equation for triangle BCD to solve for x.
x² = BD² + 25
x² = 50 + 25
x² = 75
x = √75
What is the image of the point (8,-9) after a rotation of 180° counterclockwise
about the origin?
Answer:
(-8, 9)
Step-by-step explanation:
A 180 degree rotation is:
[tex](x,y)\rightarrow(-x,-y)[/tex]
Apply the rule to the point given:
[tex](8,-9)\rightarrow\boxed{(-8,9)}[/tex]
Hope this helps.
The image of the point (8,-9) after a rotation of 180° counterclockwise
about the origin is (-8, 9).
How does rotation by 90 degrees changes coordinates of a point if rotation is with respect to origin?Let the point be having coordinates (x,y).
Case 1: If the point is in first quadrant:
Subcase: Clockwise rotation:
Then (x,y) → (y, -x)
Subcase: Counterclockwise rotation:
Then (x,y) → (-y, x)
For points on axes, You can take that point in any of the two surrounding quadrants. Example, if the point is on positive x axis, then it can taken as of first quadrant or fourth quadrant.
It is noted that for a 180 degree rotation the points move from (x, y) to (-x, -y)
A 180 degree rotation is:
(x, -y) --- (-x, y)
Apply the rule to the point given:
(8,-9) --- (-8, 9)
Hence, The image of the point (8,-9) after a rotation of 180° counterclockwise about the origin is (-8, 9).
Learn more about rotation of a point with respect to origin here:
https://brainly.com/question/18856342
#SPJ2
4x+5 equivalent expression
Answer:
20
Step-by-step explanation:
Which situation is best expressed by the quantity -100?
O a child on the deck of a ship 100 feet above sea level
O a temperature reading of 100°F
O a dolphin swimming 100 feet below sea level
O a man swimming 100 feet in a pool
Answer:
a dolphin swimming 100 feet below sea level
Step-by-step explanation:
Plato
PLEASE PLEASE PLEASE HELP ME I WILL MARK BRAINALIST AND EXTRA POINTS TO THE FIRST PERSON
Answer:
Its C
Step-by-step explanation:
You have a rectangle with the perimeter of 150 cm. One side length is
represented by 2x+4. The other side is 30 cm. What is the value of the side length represented by 2x+4?
side length represented by 2x+4?*
Answer:
x=20.5
Step-by-step explanation:
Perimeter of rectangle = 2(L+B)
L- Length and B - Breadth
150 = 2( 2x+4 +30)
150÷2 = 2x + 34
75 = 2x + 34
2x = 75 -34
2x = 41
x = 20.5
Help!!!!
Given log73≈0.5646 and log716≈1.4248, evaluate the expressions.
Answer:
a) 0.356
b) 1.1397
Step-by-step explanation:
a) log₇2
log(2) / log(7) 0.356b) log₇ (¹⁴⁷/₁₆)
log (¹⁴⁷/₁₆)log (7)
1.1397Select the correct answer.
Which of the graphs below represents the equation 3x - 2y = -12
Answer:
Graph B
Step-by-step explanation:
First you solve them which will give you,
X-intercept = (-4,0)
Y-intercept = (0,6)
Slope 3/2x
equation for this: y = 3/2x + 6
So graph B is the only option like this.
HELP ASAPPPP!! PLEASEEEEEEE
WILL GIVE BRAINLIEST
Drag and drop each pair of points into the correct category to show whether each set of points is on a line that
has a positive slope, negative slope, zero slope, or undefined slope.
Estimate each quotient 7 divide by 0.85 9.6 divide by 0.91 17.7 divide by 3.2 = 18 divide by 3 =6 I need help with the first two and check the third one
Answer:
8.2, 10.5, 5.5
Step-by-step explanation:
To find: quotient when 7 is divided by 0.85, 9.6 is divided by 0.91 and 17.7 is divided by 3.2
Solution:
Division is one of the arithmetic operations.
7 divided by 0.85 = [tex]\frac{7}{0.85}=\frac{700}{85} =8.2[/tex]
9.6 divided by 0.91 = [tex]\frac{9.6}{0.91}=\frac{960}{91} =10.5[/tex]
17.7 divided by 3.2 = [tex]\frac{17.7}{3.2}=\frac{177}{32} =5.5[/tex]
Please help me! (Picture)
ASAP!
Will mark brainliest if correct!
Answer:
y=(1/2)x+3
Step-by-step explanation:
We can see that the slope is 1/2 because for every 1 unit y goes up, you move 2 units in the x direction. Then we can see that the y intercept is 3.
If we plug in these values to our equation for a line (y=mx+b), where m is the slope and b is the y-intercept, we get:
y=(1/2)x+3 or y=.5x+3
What's the answer help pls
Answer:
48°
Step-by-step explanation:
The m in front of the angle notation refers to the measure of the angle labeled A, B and C (with vertex at B)
Two Angles are Supplementary when they add up to 180 degrees.
HENCE,
∠A + ∠B =180 (given)
⇒4x - 16 +8x + 4 = 180°
⇒12x - 12 = 180°
⇒12x = 192
⇒x = 16 ----1
substituting eq1 in ∠A,
=> 4(16) -16
=> 64 - 16
=> ∠A = 48°
Answer:
48
Step-by-step explanation:
The definition of supplementary means that the two angles add up to 180. so you set both expressions up to where they add to 180. like this
4x-16+8x+4=180
combine like terms
12x-12=180
12x=192
divide to get x
x=16.
You need the measure of angle A so you plug it back in
4(16)-16
64-16
48 is the measure of angle A, and since these angles are supplementary, that means angle B is 132
Your salary is $65,788. If you work fifty 40-hour weeks in a year, what is your hourly wage?
Answer:
$31.63/hr
Step-by-step explanation:
Given parameters:
Yearly salary = $65788
Number hours worked per week = 40hrs
Unknown:
Hourly wage = ?
Solution:
The hourly wage is found by dividing the yearly salary by the total number of hours worked per year.
There are 52 weeks in a year;
Number of hours worked per year = 52 x 40 = 2080hrs
Hourly wage per year = [tex]\frac{65788}{2080}[/tex] = $31.63/hr
the volume of the rectangular prism shown below is 96 cubic feet. The dimensions of the prism base are 4 feet and 3 feet. What is the prisms height in feet
What is an equation of the line that passes through the point (-5,-4) and is perpendicular to the line 5x+6y=36
Answer:
y = 6/5x + 2
Step-by-step explanation:
First let's fix this equation
5x + 6y = 36 (subtract 5x on both sides)
6y = -5x + 36 (divide by 6 on both sides)
y = -5/6x + 6
NOW
The perpendicular slope of this equation is 6/5
Now we have to plug in (-5,-4) to get the y-intercept
-4 = 6/5(-5) + b (distribute 6/5 to -5) (b represents the y-intercept)
-4 = -6 + b (add 6 on both sides)
2 = b
So your equation is...
y = 6/5x + 2
HOPE THIS HELPED!!!!!