Answers
Answer:
A=3
Step-by-step explanation:
-7a+28=7
subtract 28 from both sides to eliminate it from the first side
-7a=-21
Two negatives equals a positive
7a=21
divide both sides by 7
a=3
Related Questions
The submarine is descending at a rate of 4.2 feet per minute. How many feet below sea level is the submarine at after 5 minutes.
But the multiplication problem below.
Answers
Answer:
21
Step-by-step explanation:
4.2*5=21 hope this helps
6.411
The rounded answer is
Answers
Answer:
Step-by-step explanation:
6.411=
6.411=6.4
in 2018, the population density in singapore was 21,400 residents per square mile. what is the population density of singapore in residents per square kilometer? (note that 1 mi
Answers
In terms of persons per square kilometer, Singapore has a population density of 8266.12
What is Population Density?The amount of people in a given region per unit area is known as population density.
In 2018, Singapore had a population density of 21,400 people per square mile.
The parameters provided are
There are 21400 inhabitants in total.
Area = 1 square mile,
The square kilometer to square mile conversion
1 x 1.609² = 2.588881 Km²
Residents per square mile divided by the population
21400 x 2.588881 is the population density.
8266.12 people are found in every square kilometer.
As a result, Singapore has a population density of 8266.12 persons per square kilometer.
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to do this, the researchers select a random sample of of 100 gas stations, and record the pump prices for both regular unleaded and premium unleaded. the average price for the 100 stations is calculated, and used as an estimate for the average price of gasoline for the entire city.
Answers
The correct option is A. Quantitative.
In the study Quantitative data is collected as the calculation of quantity is being done.
What is defined as the Quantitative data?Quantitative data is any collection of information that may be recognized and analyzed numerically.
Some key points related to Quantitative data are-
Quantitative data data is the most important type of data for use in mathematics and statistics because it is the only form of information that can be counted objectively. Quantitative data answers questions like "How many? ", "How frequently? ", "How much is it?" ”. Using mathematical techniques, this data can be easily verified and evaluated.There are, for example, quantities that correspond to various parameters. "How much just do that laptop cost?" for example. " is a quantitative data collection question. Most measuring parameters have values associated with them, such as lbs or kilograms for mass, dollars for cost, and so on.Because of the convenience of mathematical derivation that quantitative data provides, it makes assessing various parameters controllable.To know more about Quantitative data, here
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The complete question is-
Determine whether the data collected in the study is qualitative or quantitative:
A study is conducted to estimate the average price of gasoline in a large city. To do this, the researchers select a random sample of of 100 gas stations, and record the pump prices for both regular unleaded and premium unleaded. The average price for the 100 stations is calculated, and used as an estimate for the average price of gasoline for the entire city.
A. Quantitative
B. Qualitative
1.8x ≤ 4x + 4(3.2x+6)
Answers
Two strait lengths of wire are placed on the ground forming vertical angles. if the mesure of one of the angles formed is 72 what are the other three angles
Answers
The other three angles are 72° , 108° and 108°.
Two strait lengths of wire are placed on the ground forming vertical angles. The measure of one of the angles formed is 72° . We know that sum of all four angles will be 360°. We also know that the vertical angles are congruent. If the measure of one angle out of four angles is 72° and straight lines equal 180°. So, we need to subtract 72° from 180°.
180° - 72° = 108°
The other angle will be 108°. As the vertical angles are equal, so the four angles will be 72° , 72° , 108° and 108°.
The other three angles are 72° , 108° and 108°.
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37-x>40 whats the answer?
Answers
Answer: x<-3 ( -∞,-3)
Step-by-step explanation:
in the proportion a/b=c/d and bc are the
Answers
Answer:
The numbers a,b,c and d in a : b = c : d are called the ratio of the proportion. The terms a and d are called the extremes. The terms b and c are called the means
Answer:
gsjscsiscjscsksvshsvshzhsvshshsgsvhshshshsgsgsg
Step-by-step explanation:
gCHGhshgg1gsjdfzjfzhzfshsgsjcdhs
Like terms have the same______ and the same______.
Answers
Answer:
variables like terms are terms that contain the same varibles raised to the same power
PLEASE HELP ME!
The length of the rectangular shed is 2x^2 + 3x - 1 feet, and the width is x + 4 feet. Write polynomials that represent the perimeter and area. Calculate the perimeter and area if x = 10 feet. Include correct units of measure
Answers
Answer: You would replace the x's with 10.
New equations: 2 . 10^2 + 3 . 10 - 1 & 10 + 4
2 . 10^2 + 3 . 10 - 1 = 229
10 + 4= 14
Area = 3,206 feet
Perimeter = 486 feet
(Sorry I could not write the polynomials.)
pls, help I don't understand this.
Answers
The dimensions of rectangle B are 4.5 inches by 3 inches. So the correct option is the first one.
What are the possible dimensions of rectangle B?
We know that the dimensions of rectangle A are 6cm by 4cm, and rectangle B is similar to rectangle A, then the two rectangles have the same shape but different size.
Notice that the ratio between the dimensions of rectangle A is:
R = 6/4 = 3/2 = 1.5
Then, any other rectangle with the same ratio will be similar to rectangle A.
If we take the ratios for the options we get:
1) 4.5 in by 3 in:
R = 4.5/3 = 1.5
So yes, this rectangle is similar to rectangle A, then these can be the dimensions of rectangle B.
Then we conclude that the dimensions of rectangle B are 4.5 inches by 3 inches, and thus, the correct option is the first one.
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At the fast food restaurant, an order of fries costs $0.88 and a drink costs $1.03. how much would it cost to get 5 orders of fries and 4 drinks? how much would it cost to get ff orders of fries and dd drinks?
Answers
Answer: $8.52
$(0.88f+1.03d)
Step-by-step explanation:
a=cost of fries. b=cost of drink.
5a+4b=
5(0.88)+4(1.03)=
4.4+4.12=
4.40+4.12=$8.52
f=number of fries. d=number of drinks
fa+db=
0.88f+1.03d=$(0.88f+1.03d)
Write a recursive function called digit_count() that takes a positive integer as a parameter and returns the number of digits in the integer.
Answers
The count of integers is returned to the main function at the end of the function.
What are recursive functions?A recursive function is one that calls itself while running. The process may be repeated several times, with the result and the end of each iteration output. The function Count() below employs recursion to count from 1 to 10 using any number between 1 and 9.So,
The Python recursive function DigitCount(), which uses comments to explain each line, is as follows:
#This defines the function
def countdigits(n):
#If the integer is less than 10
if n< 10:
#Then the integer has 1 digit
return 1
#Otherwise,
else:
#Count the number of integers
return 1 + countDigits(n / 10)
At the end of the function, the count of integers is returned to the main function.
Therefore, the count of integers is returned to the main function at the end of the function.
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Solve for x.
-(-2–5x)+(−2)=18
0x = -90
- 188
5
O
X =
0x =
O x = 90
18
5
Answers
Answer:
The answer is x=18/5
Step-by-step explanation:
how let us try it
-(-2–5x)+(−2)=18
2+5x-2=18
5x=18
x=18/5
use the fundamental identities to simplify the expression. there is more than one correct form of the answer. 9 sec2(x) 1 − sin2(x)
Answers
According to the given information the expression solution are:
Pythagorean identity = 9 sec2 x(cos2 x) Reciprocal identity = = 9 sec2 x(1/sec2 x)What are fundamental identities?An equation is referred to as an identity if it has one or more variables and is true for all alternate values of the variables for which both sides of the equation are defined.
For instance,
the equation x 2 + 2 x = x(x + 2) is an identity since it holds true for all possible replacement values for x.
A conditional equation is one that holds true only for specific replacement values of the variable.
For instance, the equation 3 x + 4 = 25 is a conditional equation because it isn't true for all possible replacement values for x.
Without specifying any limitations, an equation is claimed to be an identity, but in reality, it is only an identity for replacement values for which both sides of the identity are defined.
According to the given data:The trigonometric expression is 9 sec2 x (1 - sin2x)
Apply Pythagorean identity
1 - sin2 x = cos2 x9 sec2 x (1 - sin2x)
= 9 sec2 x(cos2 x)
Apply reciprocal identity cosx = 1/ secx
= 9 sec2 x(1/sec2 x)
= 9
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In APQR, m/P = (4x + 11)°, m/Q = (2x + 1)°, and m/R = (7x - 14)°.
Find m/P.
Answers
Answer: 67 degrees
Step-by-step explanation:
m/P+m/Q+m/R=PQR
4x+11+2x+1+7x-14=180
4x+2x+7x+11+1-14=180
6x+7x+12-14=180
13x-2=180
13x=182
x=14
m/P=4x+11
m/P=4(14)+11
m/P=56+11
m/P=67 degrees
Use the number line below, where RS = 3y +5, ST = 2y + 3, and RT = 48.
Answers
Answer: y=8
Step-by-step explanation:
RT=RS+ST
48=3y+5+2y+3
48=3y+2y+5+3
48=5y+8
5y=40
y=8
I need help with this question
Answers
The box plot shows the ages of 240 people at a movie screening how many people are the movie screening are under 20 years old round the nearest 10th
Answers
The number of people that are below 20 years is 60.
How many people are below 20 years?A box plot is used to study the distribution and level of a set of scores. The box plot consists of two whiskers and a box. The first line on the box represents the upper quartile. 25% of the observation is below the upper quartile.
In this question, the upper quartile is 20 years
Number of people under 20 years : (25 / 100) x 240 = 60 people
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Dan bought 5 new baseball trading cards to add to
his collection. The next
day his dog ate half of his collection. There are now
only 32 cards left.
How many cards did Dan start with ?
Answers
Answer: 59
Step-by-step explanation:
just multiply 32x2 and then subtract 5 and u wil get 59
His dog ate half of his collection, and now there are 32 cards left. This means that with the addition of the 5 new baseball trading cards, Dan had 64 trading cards. Now that we know he had 64, we can take away the 5 new baseball cards Dan purchased:
64 - 5 = 59
Therefore, Dan initially had 59 cards.
a. plot the given points on one coordinate plane
A. (-4,3)
B. (2,7)
C. (5,-1)
D. (0,-8)
E. (-6,-2)
Answers
A pair of numbers that use the horizontal and vertical separations from the two reference axes to define a point's location on a coordinate plane.
Describe coordinates using an example?
A group of variables that accurately depict a stance. The first number on a graph represents the distance along, while the second number represents the distance up or down. For instance, the point (12,5) is located 12 units down and 5 units up.a pair of numbers that use the horizontal and vertical separations from the two reference axes to define a point's location on a coordinate plane. typically expressed by the x-value and y-value pair (x,y).What are the coordinates for all 3?
A point's three-dimensional Cartesian coordinates consist of a triplet of numbers (x,y,z). The three values, or coordinates, each represent a signed separation from the origin along the x, y, and z axes.the given points on one coordinate plane are
A . (-4,3)
B. (2,7)
C. (5,-1)
D. (0,-8)
E. (-6,-2)
Graph is attached
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6 divied by 6.48 how to slove it
Answers
It should be noted that dividing 6 by 6.48 will be 0.926.
Whst is division?It should be noted that division simply means the separation of the numbers that are given.
In this case, we want to divide 6 by 6.48. It should be noted that 6 can be multiplied by 109 making 600 and 6.48 will be 648.
The division will be:
= 600 / 648
= 25/27
= 0.926.
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Solve the following equation.
5(m-1)=-25
Answers
5m=-20 divide both by 5
since 5 divided by -20 equals -4
How to find and get the answers and solution?
Answers
Answer:
soloman king story class 8 gramer
The function f is defined as follows
h(x)=-4x^2+6
if the graph of h is translated vertically downward by 5 units, it becomes the graph of function g
FIND THE EXPRESSION FOR G(X)
Answers
Answer:
g(x)=-4x²+6
Step-by-step explanation:
Subtract 5 from -4x²+6.
-4x²+6-5=-4x²+1
g(x)=-4x²+6
Hope this helps!
Please mark as brainliest if correct!
Is the option I chose correct? Please help FAST!!!
Answers
Answer: that should be the answer i did that question i think
Two thirds of twenty-two
Answers
Answer:
44/3 or 14 2/3
Step-by-step explanation:
22 * 2/3
= 44/3
7/6m=1/6 please help I suck at fractions
Answers
Answer: m=1/7
Step-by-step explanation:
7/6m=1/6
7/6 * m=1/6
7*6/6 * m = 1*6/6==> Multiply by 6 on both sides to get rid of denominators
42/6 * m=6/6
7m=1
m=1/7
Answer:
m = 1/7
Step-by-step explanation:
hope i helped out :)
Student is asked
to evaluate the expression 2 to the power of 4/ 2 to the power of 7 =8
What error did the student make? Explain. Then
evaluate the expression.
Answers
The value of the expression 2⁴/2⁷ = 1/8.
A student is asked to evaluate the expression 2⁴/2⁷.
And the student wrote the answer for this expression as 8.
The student made the mistake of subtracting 7 from 4.
4 - 7 = -3, but the student might have done 7 - 4 = 3 and arrived at the answer as 2³ = 8.
Let us evaluate the given expression.
2⁴/2⁷
Apply exponent rule aⁿ/aˣ = aⁿ⁻ˣ
2⁴/2⁷ = 2⁴ ⁻ ⁷
⇒ 2⁴/2⁷ = 2⁻³ (subtract the numbers: 4 - 7 = -3)
⇒ 2⁴/2⁷ = 1/2³ (apply the exponent rule: a⁻ⁿ = 1/aⁿ)
⇒ 2⁴/2⁷ = 1/8 (2³ = 2 × 2 × 2 = 8)
⇒ 2⁴/2⁷ = 1/8
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You want an average of at least 30 active minutes each day during the week. How many active minutes do you need on Sunday to achieve your goal? Make an argument for your answer using a bar graph.
Answers
Using the mean concept, it is found that you need at least 40 active minutes on Sunday to achieve your goal.
What is the mean?The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.
In a week, there will be 7 observations, and a bar graph can represent each observation(time in minutes). They are given as follows:
15, 45, 20, 0, 60, 30 and x.
We want the mean to be of 30, hence:
30 = (15 + 45 + 20 + 0 + 60 + 30 + x)/7
170 + x = 210
x = 210 - 170
x = 40.
You need at least 40 active minutes on Sunday to achieve your goal.
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