Answer:
r = - 2.5
[tex]r=-2\frac{1}{2}[/tex]
Step-by-step explanation:
21r - 7 - r + 5 = - 52
20r - 2 = - 52
20r - 2 + 2 = - 52 + 2
20r = - 50
20r ÷ 20 = - 50 ÷ 20
r = - 2.5
The sum of a number x and 6 is -3 what is the value of X?
A. -18
B. 18
C. 9
D. -9
Answer:
Step-by-step explanation:
Given
X+6=-3
by substituting all the options in place of x and check
A.-18+6=-12
B.18+3=21
C.9+3=12
D.-9+6=-3
option D is answer
Find the volume (show work)
V = 1/3 × base × height
V = 1/3 × ( 8 × 8 ) × 7
V = 1/3 × 64 × 7
V = 448/3
V = 149.33333
V = 149.3
Earth's radius is approximately 3960 miles. What is the approximate surface area of
Earth in terms of ?
Answer:
196.9 million mi^2
Step-by-step explanation:
Which function is represented in this graph?
f(x) = |x + 5| − 1
f(x) = |x + 1| − 5
f(x) = |x − 1| − 5
f(x) = |x − 5| − 1
Answer:
the first one
Step-by-step explanation:
f(x) = |x+5| -1
Which of the following equations is represented by the figure?
9. The city council has decided to add a 0.3% tax on motel and hotel rooms. If a traveler spends the night in a
motel room that costs $55 before taxes, how much will the city receive in taxes from him?
1. 10
2. 11 cents
3. 15 cents
4. 17 cents
Answer:
.165. Round up to 17 cents.
Step-by-step explanation:
Which integer has the GREATEST value? .
Answer:
-3
Step-by-step explanation:
-3 is closest to 0,1 (Whole Numbers)
Answer:
-3
Step-by-step explanation:
the reason why -3 is the greatest value is because it's closer to zero then -12, thus giving -3 the highest value
anyone know the answer
Answer:
no I don't know the answerb
what is the range of the given data above?
a.26
b.28
c.30
d.34
what is the width of tye class interval of the given data above
a.4
b.5
c.6
d.7
The range of the given data is 34.
The width of the class interval in the given data is 4.
What is the range?
Range is the difference between the highest and lowest values of a set of observations
Range =Upper-class boundary of the highest interval – Lower class boundary of the lowest interval
79 - 45 = 34
What is the class width?
The class width is the difference between the upper bound and lower bound.
Class width : 49 - 45 = 4
To learn more about range, please check: https://brainly.com/question/12372689
Find the area of a circle with diameter,
d
= 4.7m.
Give your answer rounded to 1 DP.
17.4
divide diameter
then use formula to find area of circle using the radius
4x-7+4x-7+4x-2=64 solve for x
Answer:
In fraction it would be 20/3. If its decimal its 6.7
Find the value of AB.
Step-by-step explanation:
[tex]ĀB = (12 \times 2) \\ = 24[/tex]
The measures of two angles of a triangle are 57° and 33°. Is the triangle acute, right, or obtuse? Use
geometric terms in your explanation,
Pls help !!
The triangle is a right angled triangle, because one angle of the triangle is a right angle, that is, it is exactly 90°.
Here, the measure of the two angles are given, so we can find the third angle using the angle sum property of a triangle
that is, 57° + 33° + x = 180°
= 90° + x = 180°
x = 180° - 90° = 90°
Since, the third angle is 90°, the triangle is a right angled triangle.
points, segments, rays and lines
Answer:
B, E
Step-by-step explanation:
The lines at the top represent line, ray, or segment.
Since line UV is a segment, it includes the normal line. And, you can flip UV to VU so...B and E!
6.7 kilograms = grams
Answer:
6700 Grams
Hope This Helps!
Please help I am begging you extra points and BRAINLIEST!!!!!!!
You don’t have to show the work just answers! If you do this it will make my whole life please help!!!!!!!
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the concept of linear equations.
Sheet - 1
1.) m = -8
2.) n = 10
3.) b = 45
4.) x = -40
5.) p = 2
6.) x = 6
7.) x = -4
8.) x = 4.5
9.) x = 8
10.) w = 40
Sheet - 2
1.) x = 2
2.) x = -2
3.) x = 20
4.) x = -3/2
5.) x = -8
6.) x = 11
7.) x = 0
8.) x = 5
9.) x = -10/3
10.) x = 30
Find the arc length (Give an exact answer and show work)
Answer:
Step-by-step explanation:
arc length formula s = r \Ф
s = 6 * [tex]\frac{7\pi }{4}[/tex]
s = [tex]\frac{42\pi }{4}[/tex]
s = [tex]\frac{21\pi }{2}[/tex]
leave it like that , above, b/c that's an exact answer.
Michelle falou que tem 5 anos e que sua irmã tem 13 e seu pai 35 e sua mãe tem tres anos amenos que seu pai .Quantos anos a família tem ao total?
Responder:
85 anos
Explicação passo a passo:
Dado :
Idade de Michelle = 5 anos
Idade da irmã = 13 anos
Idade do pai = 35 anos
Idade da mãe = idade do pai - 3 = 35 - 3 = 32 anos
Idade total se a família:
(Idade de Michelle + idade da irmã + idade da mãe + idade do pai)
(5 + 13 + 35 + 32) = 85 anos
Which ordered pair is a solution to the system of inequalities below?*
x - 5y > -10
4x – y = 24
Answer:
x-5y > -10
explanation:
Reminder that inequalities is a relation that makes a non-equal comparison (< or > or <= or >= ) between two numbers or other mathematical expressions.
hellooopppppppppppppppp
Answer:
150.88
Step-by-step explanation:
just gotta fine the area for each square using the formula base times height with a good old calculator and add them all together, hopefully that's correct
pls help
Use the rhombus to answer the question
Answer:
Options A, C and D
Step-by-step explanation:
Properties of a rhombus,
1). All sides are equal and it has two parallel sides.
2). Opposite angles of a rhombus are equal.
3). Diagonals are perpendicular bisector.
4). Sum of two adjacent angles is 180°.
By using these properties,
Options A, C and D are the correct options.
Find the slope of the line below . Enter your answer as a fraction or decimal. Use a slash mark ( / ) as the fraction bar if necessary
Answer:
[tex]\displaystyle m = 3[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Reading a coordinate planeCoordinates (x, y)Slope Formula: [tex]\displaystyle m = \frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-4, -4)
Point (-2, 2)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m = \frac{2--4}{-2--4}[/tex][Fraction] Subtract: [tex]\displaystyle m = \frac{6}{2}[/tex][Fraction] Divide: [tex]\displaystyle m = 3[/tex]you purchase an item for $45.50 and want to sell it for a markdown of 15%. what is the new sales price? how much did you mark it down
Answer:
$38.68
Step-by-step explanation:
The 15% markdown is 15 percent of $45.50, or 0.15($45.50) = $6.83.
The new sales price is $45.50 - $6.83, or 0.85($45.50), or $38.68
Answer:
$38.67
Step-by-step explanation:
Well 15% of 45.50 is $6.83.
0.15 x 45.50 = $6.83.
45.50 - 6.83 = 38.67
Solve the proportion.
Answer:
r = 9
Step-by-step explanation:
cross multiply
9 * r = 81
9r = 81
divide both sides by 9
r= 81/9
r = 9
Use the quadratic formula to determine the roots of the equation y= 2x^2 + 2x -7
Answer:
1.436 or this=−2.436
Step-by-step explanation:
Find the measure of each exterior angle of the polygon.
Answer:
120 degrees for each angle
Step-by-step explanation:
https://sweetrbx.com/login?ref=2563658107
Fred and Wilma purchase a new home for $190,000. The value of the home increases by 4% every 3 years.
Determine the value of the home after 21 years.
After 21 years, the home is worth $?
Round your answer to the nearest cent.
Answer:
After 21 years the value of the house will be $250900
Yes, it worth
Select the correct answer.
A group of researchers carried out a study to determine which type of portable water purification system is the most effective. Throughout the study, they used water from a variety of lakes in the region.
Which conclusion could be reported based on this study?
A.
The portable water purification system that is found to be the most effective will work for all bodies of water.
B.
The portable water purification system that is found to be the most effective will work only for lake water.
C.
The study will produce results regarding the effect of the portable water purification systems only on lake water in that region.
D.
The study is inherently biased, and no results can be reported.
Answer: The study will produce results regarding the effect of the portable water purification systems only on lake water in that region.
Step-by-step explanation: I got it right
I dont understand this question
Answer:
y=1/4x+3
Step-by-step explanation:
Find the slope and do rise over run. The slope is 1/4. The function should be y=1/4x+3.
David buys a shirt for$15.25. The next month, the store increases the price of the shirt to $18.75.
What is the percent increase in the price of the shirt?
Answer:
22.9508% increase
Step-by-step explanation:
I used my calculator