Answers
Answer:
1. Alike
2. Opposite
3. Common factor
Step-by-step explanation:
1. To have a positive number, you can only have alike signs, for example, any positive number times another positive number is always positive. The same is true for negative numbers multiplied by each other.
2. To have a negative number, there has to be one negative number and one positive number being multiplied together. Always. For example:
3 x -5 =-15
10 x -1 = -10
3. You can factor out a common factor to simplify a polynomial before you factor it.
Related Questions
The volume of a sphere is 75716 cm3.
Work out the radius of the sphere.
Answers
Answer:
Step-by-step explanation:
Givens
V = 75716
pi = 3.14
r = ?
Formula
V = (4/3) pi * r^3
Solution
75716 = (4/3) * 3.14 * r^3 Multiply both sides by 3/4
75716 * 3/4 = 3.14 * r^3
56787 = 3.14 r^3 Divide by 3.14
56787 / 3.14 = 3.14 * r^3/3.14
18085 = r^3
∛18985 = ∛ r^3
r = 26.25
what is the area of the triangle in square yards 10 3/4 yards and 7 yards
Answers
A=hbb
2
Brainliest if correct
Answers
Answer:
[tex]\frac{1}{2}-\frac{1}{6}=\frac{3}{6}-\frac{1}{6 }=\frac{2}{6} =\frac{1}{3}[/tex]
Step-by-step explanation:
To complete the steps:
[tex]\frac{1}{2}-\frac{1}{6}=\frac{3}{6}-\frac{1}{6 }=\frac{2}{6} =\frac{1}{3}[/tex]
I think the question you are answering a question that does not require simplification so ignore the last bit (= 1/3)
Annie wants to use the problem-cause-solution order to organize a persuasive speech to reduce violence on campus. she begins by offering statistics of incidents to show that there is a need for action. what is a possible next step
Answers
The possible next step that Annie should use in the persuasive speech is to discuss the lack of street lamps and campus security as causes of the problem.
What is a persuasive speech?It should be noted that a persuasive speech simply means a speech that is used to convince an individual to agree to a particular perspective.
In this case, the possible next step that Annie should use in the persuasive speech is to discuss the lack of street lamps and campus security as causes of the problem.
Learn more about speech on:
https://brainly.com/question/25887038
What is the value of X
Answers
Answer:
x ≈ 23.31
Step-by-step explanation:
We can use the law of cosines because we know 2 sides and 1 angle.
The general formula for the law of cosines if the triangle sides are a, b,c and α is the angle between sides a and b. c is the missing side.
[tex]c = \sqrt{a^{2} +b^{2} -2*a*b* cos \alpha }[/tex]
In our problem the law of cosines is
x = [tex]\sqrt{21^{2} +13^{2} - 2*21*13 *cos 83}[/tex]
x ≈ 23.31
When 0.3(4x – 8) – 0.5(–2.4x + 4) is simplified, what is the resulting expressions
-4.4
1.2x-2.4+1.2x-2
2.4x-0.4
2.4x-4.4
Answers
Answer:
[tex]2.4x-4.4[/tex]
Step-by-step explanation:
Given the following question:
[tex]0.3(4x-8)-0.5(-2.4x+4)[/tex]
To simplify the expression, we are going to need to rewrite the expression by expanding the terms and then solve by using the distributive property. Then we combine like terms in till the expression can no longer be simplified to find our answer.
[tex]0.3(4x-8)-0.5(-2.4x+4)[/tex]
[tex]0.3(4x-8)[/tex]
[tex]0.3\times4=1.2x[/tex]
[tex]0.3\times4=2.4[/tex]
[tex]1.2x-1.2-0.5(-2.4x+4)[/tex]
[tex]-0.5(-2.4x+4)[/tex]
[tex]-0.5\times-2.4=1.2[/tex]
[tex]-0.5\times4=-2[/tex]
[tex]1.2-2[/tex]
[tex]1.2x-2.4+1.2x-2[/tex]
[tex]1.2+1.2=2.4x[/tex]
[tex]-2.4+-2=-4.4[/tex]
[tex]=2.4x-4.4[/tex]
Your answer is "2.4x - 4.4."
Hope this helps.
Which expression represents 4 fifths t(negative 10 t)? –8t 46 over 5 46 over 5 –8t2
Answers
Answer:
is this a multiple choice question? if so can you retype it out to show the separate answer choices because im having trouble reading your question.
Step-by-step explanation:
Answer:
–8t^2 or DStep-by-step explanation:
Took the test and got it right.
∠A and ∠B are corresponding angles, the measure of \angle ∠A is 110
Answers
Answer:
Step-by-step explanation:
if the measure of <A is 110°
Then the measure of <B is also 110°
!!!20 points and Brainliest please help!!!!
Which of the following is a difference of cubes?
A)3x^9 - 64y^3
B)125x^21 - 64y^3
C)27x^15 - 9y^3
D)x^6 + 27y^9
Answers
Answer:
B) 125x^21 -64y^3
Step-by-step explanation:
You want to identify the difference of cubes among the expressions given.
A)The coefficient 3 is not a cube.
B)125x^21 -64y^3 = (5x^7)^3 -(4y)^3 . . . . . a difference of cubes
C)The coefficient 9 is not a cube.
D)The expression is not a difference.
<95141404393>
Please help me!!!
it would be greatly appreciated
Answers
Answer:
11.72
Step-by-step explanation:
6.76 + 4.96 = 11.72
help pls asap
answer:
explain:
Answers
rate of change:
[tex]\sf \bold{\dfrac{y_2-y_1}{x_2-x_1} }[/tex]
coordinates taken: (0, 0), (2, 1)
[tex]\rightarrow \dfrac{1-0}{2-0}[/tex]
[tex]\rightarrow \dfrac{1}{2}[/tex]
Take 2 points
(-2,-1)(2,1)[tex]\\ \rm\rightarrowtail m=\dfrac{1+1}{2+2}[/tex]
[tex]\\ \rm\rightarrowtail m=\dfrac{2}{4}[/tex]
[tex]\\ \rm\rightarrowtail m=\dfrac{1}{2}[/tex]
An equilateral triangle with side lengths of 8. 7 centimeters is shown. An apothem has a length of a and the radius has a length of 5 centimeters. The apothem and radius form a triangle with a base length of b. Which statements about finding the area of the equilateral triangle are true? Select three options. The apothem can be found using the Pythagorean theorem. The apothem can be found using the tangent ratio. The perimeter of the equilateral triangle is 15 cm. The length of the apothem is approximately 2. 5 cm. The area of the equilateral triangle is approximately 65 cm2.
Answers
The image of the triangle is missing, so i have attached it.
Also, the options are;
A) The apothem can be found using the Pythagorean theorem.
B) The apothem can be found using the tangent ratio.
C) The perimeter of the equilateral triangle is 15 cm.
D) The length of the apothem is approximately 2.5 cm.
E) The area of the equilateral triangle is approximately 65 cm².
Answer:
Options A, B & D are true
Step-by-step explanation:
A) We are told that the triangle is an equilateral triangle.
Thus, the 3 sides equal 8.7 cm.
Now from the image, b is half of one of the sides.
Thus, b = 8.7/2 = 4.35 cm
Now, we want to find the apothem "a".
Using Pythagoras theorem, we have;
a² + 4.35² = 5²
a² = 25 - 18.9225
a² = 6.0775
a = √6.0775
a ≈ 2.5 cm.
Thus, option A is true as Pythagoras theorem was able to calculate the apothem "a"
B) since the main triangle is equilateral, it means each angle is 60°.
Now, the radius line from one corner point to the center will divide the 60° angle into 2 equal parts.
Thus, the angle made by the radius line with the base of the triangle is 60/2 = 30°
Now, from tangent ratios, we know that;
Opposite/Adjacent = tan θ
In the small triangle, opposite is apothem "a" while adjacent is b = 4.35 cm
Thus;
a/4.35 = tan 30
a = 4.35 tan 30
a ≈ 2.5 cm.
Thus, option B is correct as Tangent ratio can be used to find the apothem
C) The perimeter of equilateral triangle = 3x
Where x is length of one side.
One side is 8.7 cm
Thus, perimeter = 3 × 8.7 = 26.1 cm
Thus option C is not correct.
D) From calculations above, we saw that in both options A & B, the apothem is approximately 2.5 cm.
Thus, option D is true.
E) Area of triangle is;
A = ½ × base × height
Base = 8.7 cm
To get height, we will use trigonometric ratio. Thus;
h/8.7 = sin 60°
h = 8.7 sin 60°
Thus;
A = ½ × 8.7 × 8.7 sin 60°
A = 32.77 cm²
Thus is not equal to 65 cm². Thus, option E is not correct.
The statements that are true for the considered equilateral triangle are:
Option A: The apothem can be found using the Pythagorean theorem.Option B: The apothem can be found using the tangent ratio.Option D: The length of the apothem is approximately 2. 5 cm.What is apothem?
For a regular polygon, the apothem is the line segment from the center of the polygon to the mid of one of the sides of the considered polygon.
For this case, referring to the figure attached below, we have:
Length of the apothem = x (assume)The triangle ABC is equilateralLength of line segment from vertex to center (radius) = 5 cmLength of each side of the triangle = 8.7 cmSince the triangle is equilateral, there can be 6 congruent triangles like BOD.
Thus, Area of triangle ABC = 6 × Area of triangle BOD
Area of BOD = [tex]\dfrac{1}{2} \times x \times 4.35 = 2.175x \: \rm cm^2[/tex]
Area of ABC = [tex]6 \times 2.175x = 13.05x \: \rm cm^2[/tex]
The length of the apothem is x cm, and can be obtained by using Pythagoras theorem.
We can also use the tangent ratio as the line segment BO is bisecting the internal angle B (each internal angle is of 60 degrees in an equilateral triangle), so angle OBD is of 60/2 = 30 degrees. So using angle and the fact that tangent ratio is ratio of side opposite to angle and the remaining adjacent side(not hypotenuse).
[tex]tan(30^\circ) = x/4.35 \implies x = 4.35 \times \tan(30^\circ) \approx 2.5 \: \rm cm[/tex]
Using Pythagoras theorem too, we can get the value of x as:
[tex]5^2 = 4.35^2 + x^2\\x = \sqrt{25 - 18.9225} \approx 2.465 \: \rm cm \approx 2.5 cm[/tex]
Thus, area of the equilateral triangle ≈ [tex]13.05 \times x \approx 13.05 \times 2.5 = 32.575 \: \rm cm^2[/tex]
This isn't 65 sq. cm.
Thus, the statements that are true for the considered equilateral triangle are:
Option A: The apothem can be found using the Pythagorean theorem.Option B: The apothem can be found using the tangent ratio.Option D: The length of the apothem is approximately 2. 5 cm.Learn more about tangent ratio here:
https://brainly.com/question/14169279
Simplify
3k - (2m + 5K) - m
Answers
Answer:
[tex]-3m-2k[/tex]
Step-by-step explanation:
Given to simplify : 3k - (2m + 5K) - m
Solution :
[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:-\left(a+b\right)=-a-b[/tex]
[tex]-\left(2m+5k\right)=-2m-5k[/tex]
[tex]=3k-2m-5k-m[/tex]
[tex]\mathrm{Group\;like\;terms}[/tex]
[tex]=-2m-m+3k-5k[/tex]
[tex]\mathrm{Group\;like\;terms}[/tex]
[tex]=-3m+3k-5k[/tex]
[tex]\mathrm{Group\;like\;terms}[/tex]
[tex]=-3m-2k[/tex]
[RevyBreeze]
Use the distributive property:-
-(2m+5k) = -2m-5k [tex]\checkmark[/tex]
[tex]\rule{270}{1}[/tex]
Let's simplify this expression by combining like terms:-
[tex]\bigstar[/tex] The like terms are:-
3k, -5k
and
-2m, -m
[tex]\bigstar{[/tex] Combine Like terms:-
3k-5k=-2k
-2m-m=-3m
Hence, we have:-
[tex]\bigstar{\boxed{\pmb{-2k-3m}}[/tex]
note:-Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)
The seventh and eighth-grade bands held a joint concert. Together, there were 188 band members. If the eighth-grade band is 3 times as big as the seventh-grade band, how big is the eighth-grade?
Let x=7th band and let y=8th band.
a. 47 eighth-grade band students
b. 63 eighth-grade band students
c. 141 eighth-grade band students
Part B:
Write the two equations for this situation.
Answers
Answer:
c. 141 eighth-grade band students
Part B:
y = 3x
1/3y = x
help..
Priya bought these items at the grocery store. Find each unit price.
12 eggs for $3. How much is the cost per egg?
3 pounds of peanuts for $7.50. How much is the cost per pound?
4 rolls of toilet paper for $2. How much is the cost per roll?
10 apples for $3.50. How much is the cost per apple?
Answers
Answer:
egg: 4 eggs per dollar
peanuts: 0.4 pounds per dollar
t p: 2 rolls for a dollar
apples: 3 apples per dollar
3. A hot air balloon travels 18 miles in 3 hours. At this rate, how many miles will the
3
hot air balloon travel in 2 hour?
4
A. 4.5 miles
B. 6 miles
C. 11.5 miles
D. 13.5 m
Answers
Answer:
B: 6 miles
Step-by-step explanation:
You divide 18 by 3 and get 6.
The figure shown is composed of 4 identical cubes.
Find the surface area.
the only thing that they show me was that on the bottom of a cube was 2 in
Answers
Answer:
i think the surface would be 2
A triangle has angles measureing 40 and 30. What is the measure of the third angle
Answers
Answer: 110 degrees
Step-by-step explanation:
The sum of the angles of a triangle is 180 degrees, so the third angle is 180-40-30=110 degrees.
Write the slope-intercept form of the equation of the line that is perpendicular to AB and passes through Point X Show
all work for full credit.
Answers
WILL GIVE BRAINLIEST FOR THE CORRECT ANSWER
Answers
Answer:
(3,5)
Step-by-step explanation:
We first need to substitute x for 3 in the equation :)
y = 2(3) - 1
y = 6 - 1
y = 5
The cordinate will be (3,5)
Have an amazing day!!
Please rate and mark brainliest!!
What other properties of a kite am I missing?
Answers
Answer:
all angles are congruent
Round each decimal to the nearest tenth.
A. 1.65
B. 1.83
C. 2.17
D. 2.42
Answers
Step-by-step explanation:
1.7
1.8
2.2
2.4
The other person got no 1 wrong take note
if the sum of two consecutive even number is 22 , find the number
Answers
According to the question,
x+x+2=22
or,2x+2=22
or,2x=22-2
or,2x=20
or,x=20/2
therefore x=10
now x+2 = 10 + 2 = 12
Therefore the numbers are 10 and 12
A clothing store is having a sale where all items are 60% off. What is the sale price of a $260 wool
coat?
Answers
Answer:
$104
Step-by-step explanation:
$260 - 60% = $104
The two figures shown below are similar. What is the value of x?
12
24
19
30
Answers
Answer: 24
Step-by-step explanation:
Corresponding sides of similar figures are proportional.
Write an equation to represent the following statement. The product of 7 and j is 91. Solve for j. j
Answers
Answer:
13
Step-by-step explanation:
7j=91
91/7=j
13
hope that helps:)
What is the value of x? If necessary express your answer in simplest radical form.
A. 18
B. 20
C.4✔️2
D. 4✔️3
Answers
Answer:
B, 20
Step-by-step explanation:
The Pythagorean Theorem states that the two shortest lengths in a right triangle (in our case, 12 and 16), is equal to the longest length in a right triangle (c). So,
a²+b²=c²
Substitute 12 and 16 for a and b, our side lengths
12²+16²=c²
144+256=400
400=c²
Square root both c and 400, which gives us...
20=c
So, the value of x is 20.
Solve
-6=|3x|
A. X =2;x=-2
B. X=12;x=-12
C. X= 1/2; x = -1/2
D. No solution
Answers
Answer:
D. [tex]\displaystyle No\:Solution[/tex]
Explanation:
The absolute value of an integer is NEVER negative, hence, your answer. ON THE OTHER HAND, these are the only exceptions:
[tex]\displaystyle -6 = -|3[-2]| \\ -6 = -|3[2]|[/tex]
The negative absolute value of an integer however, IS negative.
I hope you are capable of differentiating between the two, and as always, I am joyous to assist anyone at any time.
What does (2x−2)(3x+5) equal?
Answers
Answer:
6x² + 4x + 10
Step-by-step explanation:
(2x - 2)(3x + 5)
2x(3x + 5) - 2(3x + 5)
6x² + 10x - 6x + 10
6x² + 4x + 10 ans.
hope this helps you !
PLEASE ACTUALLY HELP AND NOT JUST ANSWER CUZ YOU WANT POINTS! Can you please write the inequalities in algebraic form. EX: the sum of 92 and Z is less than 100 90+Z < 100
1. 24 less than Z is less than 12
2. the difference when you subtract 12.65 from A is less than or equal to 26,000
3. 999 less than Z is less than 500
4. the product of -10 and X is 25 or more
5. f minus -1 is less than 0
6. Y over 14 is 0.5 or more
Answers
Answer:
1. Z-24 < 12
2. A-12.65 ≤ 26,000
3. Z-999 < 500
4. -10x ≥ 25
5. f - -1 < 0 or f+1 < 0
6. y/14 ≥ 0.5