Answer:
-14+21x
Step-by-step explanation:
Distrubute
-7 times 2= -14
-7 times 3x= -21x
Answer:
The answer is -14 + 21x
Step-by-step explanation:
Distribute -7 to 2 and -3x
-7 × 2 = -14
-7 × - 3x = 21x
= -14 + 21x
The radius of a circle is 4 kilometers. What is the circle's area?
r=4 km
Use 3.14 for .
square kildmeters
Submit
Answer:
50.27km
Step-by-step explanation:
divide the circumference by 3.14 ( pi ) to find the diameter of the circle. Half the diameter is the radius. Square the radius and multiply by pi to find the area of the circle.
Answer:
Step-by-step explanation:
PLEASE HELP!! WHAT IS x???
9514 1404 393
Answer:
x = 90 degrees
Step-by-step explanation:
There are several ways to go about this (as is often the case with math problems). Here, we'll use the fact that an inscribed angle is half the measure of the arc it intercepts.
arc DE = 2×∠DFE = 60°
arc EF = 2×∠ECF = 60°
arc CF = 2×∠CEF = 60°
Then arc DEC is ...
arc DEC = arc DE +arc EF +arc FC = 60° +60° +60° = 180°
Angle DBC is half the measure of this arc, so is ...
∠DBC = 180°/2 = 90° = x
A nan brought a cow for $200 and sold it to gain $50. What was his gain as a percentage of the cost price?
Answer:
25%
Step-by-step explanation:
Given that,
The cost price of a cow, CP = $200
Gain = $50
We need to find the gain percentage of the cost price.
SP = CP + gain
= 50 + 200
= $250
[tex]\text{Gain}\%=\dfrac{\text{Gain}}{CP}\times 100\\\\=\dfrac{50}{200}\times 100\\\\=25\%[/tex]
So, the gain percent is 25%.
3(-4x + 8)=.................
Answer:
-144 or 2 5
Step-by-step explanation:
Answer:
144
Step-by-step explanation:
error
question not used
Which is the best description of the equivalency of the two expressions?
Expression 1
5x-2x-4+6x+3
Expression 2
6x-6x+6-x+10x-7
O The two expressions are not equivalent because when x2, the two expressions do not have the same value.
O The two expressions are not equivalent because when they are simplified, they do not have the same coefficients for
the andx terms.
O They are equivalent because the sum of the constants is the same in both expressions.
O They are equivalent because when X- 2, the two expressions have the same value,
Identify the slope and y-intercept for the linear equation below.
y = 1/3x+7
Answer:
Slope is 1/3.
Y-intercept is 7.
Step-by-step explanation:
y = mx + b is the slope-intercept form.
m = slope
b = y-intercept
In the equation, y = 1/3x + 7
m = 1/3
b = 7
Therefore, slope is 1/3 and y-intercept is 7.
Hope this helped! <3
Answer:
Slope is 1/3 and the y- intercept is 7
Step-by-step explanation:
Since the equation is y = mx+b, we know that 1/3 is the slope since m represents the slope and b represent the y-intercept, meaning 7 is the answer.
What is the slope of the line that passes through
the points (-8, 8) and (8, –5)?
Answer:
-13/16
Step-by-step explanation:
slope = rise/run = (-5 - 8)/(8 - (-8)) = -13/16
I would thank u a bunch of u could help me with this! ASAP
20 POINTS FOR THE FIRST PERSON TO ANSWER
Matt has a bag of candy form a party. The bag contains 8 chocolate bars, 5 pieces of gum,
8 lollipops, and 4 jawbreakers. Which statement is true?
A. The probability of randomly selecting a piece of gum is less than the probability of randomly
selecting a lollipop.
B. The probability of randomly selecting a chocolate bar is equal to the probability of randomly
selecting a jawbreaker.
C. The probability of randomly selecting a lollipop is greater than the probability of randomly
selecting a chocolate bar.
D The probability of randomly selecting a piece of qum is
Answer: its A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
the probability of selecting a piece of gum is less because there's less gum in the bag then there are lollipops
please help! asap
d- 5.44
Answer:
Step-by-step explanation:
2.72 is the unit rate
Can someone please help me with this. I'll give 50 points!
Answer:
the second one
Step-by-step explanation:
Answer:
2nd answer
Step-by-step explanation:
x less than -3
Just do numbers 1-6,22-24, and 25-26
ill give brainliest for the best answer
work doesn't need to be shown
1. 0.625
2. 0.22222222222
3. 0.43243243243
4. -0.11111
5. 0.54
6. -0.75
22. −2 21/50
23. -4/25
24. -13/20
25. 0.62
26. 7/15
Two six-sided dice are rolled. Find the probability of rolling the same number twice.
Answer: please 2.9
Step-by-step explanation:
I think
Answer:
1/36
Step-by-step explanation:
The probability of rolling a specific number twice in a row is indeed 1/36, because you have a 1/6 chance of getting that number on each of two rolls (1/6 x 1/6). The probability of rolling any number twice in a row is 1/6, because there are six ways to roll a specific number twice in a row (6 x 1/36).
Hope this helps
A scientist is studying the characteristics of butterflies and collects a random sample of butterflies to measure. Information regarding the wingspan of the butterflies is shown in the histogram below.
A histogram titled Butterfly Wingspans has wingspans on the x-axis and frequency on the y-axis. Wingspan of 3 has frequency 6; 3.5, 3; 4, 8; 4.5, 14; 5, 6; 5.5, 3; 6, 5; 6.5, 6.7
Which of the following is a true statement regarding the information shown in the histogram?
Wingspan is a categorical variable.
Wingspan is a discrete quantitative variable.
Wingspan is a continuous quantitative variable.
Frequency is a continuous quantitative variable.
Answer:
I believe it's C. Wingspan is a continuous quantitative variable.
The wingspan is a continuous quantitative variable.
What is a continuous variable?A continuous variable is defined as a variable that can take an uncountable set of values or an infinite set of values.
We have,
Wingspan values on the x-axis are given as:
-3 to 3.5
- 3.5 to 4
- 4 to 4.5
- 4.5 to 5 and so on.
These are continuous quantitative variables.
The frequency is given as:
0, 1, 2, 3, 4, 5, ... and so on.
These are discrete quantitative variables.
Thus wingspan is a continuous quantitative variable.
Learn more about continuous variables here:
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How many even 2-digit positive integers can be written using the numbers 2, 4, 5, and 8?
Answer:
12
Step-by-step explanation:
To have an even integer the number's endian has to be an even number. Consider the 2-digit positive number like _ _ and place the number of possible options out of four total options in each blank space. We have 3 even options, so we can fill the endian blank like this _ 3
Since the first digit can be any number, therefor, we have 4 options for the first blank space 4 3. Just multiply the two numbers and you have the answer.
22, 24, 28, 42, 44, 48, 52, 54, 58, 82, 84, 88
the area of rectangular plot of land fenced all round is 2000 sq. yards and the total length of fencing 180 yards. find the length and width of plot
9514 1404 393
Answer:
length: 50 ydwidth: 40 ydStep-by-step explanation:
The perimeter is twice the sum of length and width. Then the sum of length and width is 90 yards. Their product is the area, so we have ...
x(90 -x) = 2000 . . . . where x is length or width
x^2 -90x +2000 = 0 . . . . rearrange to standard form
(x -40)(x -50) = 0 . . . . . . . factor
x = 40 or x = 50
The dimensions of the rectangular plot are 40 yards by 50 yards.
What is the solution of the equation? square root b - 17 + square root b = 1?
Answer:
D. No solution
Step-by-step explanation:
correct on edg unit test review, hope that helped!
Rita is hiking along a trail that is 14.8 miles long. So far she has hiked along one-tenth of the trail.
How far has Rita hiked?
Answer:
1.48 miles
Step-by-step explanation:
If the trail is 14.8 miles and Rita has hiked 1/10 of it. Then just multiply 14.8 by 1/10.
14.8 * 1/10 = 1.48 miles.
Answer:
1.48
Step-by-step explanation:
I know the answer is correct
What is the difference of 30 and -12?
the difference between 30 and -12 is 42
What is the explicit formula for a sequence for which the first five terms are 0, 0, 1, 5, and 23
Answer: n-1
Step-by-step explanation:
What’s is 9 divided by 3/10
Answer:
30
Step-by-step explanation:
9/(3/10)=9*(10/3)=30
what is one-fourth of 24
Answer:
6
Step-by-step explanation:
One fourth is ÷4
24÷4=6
Answer:
6...? I don't know why you are doing first grade math again...
Step-by-step explanation:
Please help me answer this :)
Explain your answer
Will give brainiest
Answer:
d. 770
Step-by-step explanation:
35 gallons per min
after 12 mins there is 350 gallons of water
35 x 12 = 420
how much water was in the tank BEFORE the valve was opened
350 + 420 = 770
Simplify.
√64x12
Assume that the variable x represents a positive real number.
I
Х
$
?.
Answer:
[tex]=32 \sqrt{3x[/tex]
Step-by-step explanation:
Given that:
[tex]Simplify \ \sqrt{(64x)(12)}[/tex]
[tex]When \ simplifying \ radicals, we \ split \ them \ up by \ their \ factors[/tex]
i.e.
[tex]=\sqrt{64} \ * \sqrt{12} \ * \sqrt{x}[/tex]
[tex]=8 \ * 4\sqrt{3} \ * \sqrt{x}[/tex]
[tex]=32 \sqrt{3x[/tex]
Luke's Auto Wash earned $10 from servicing 2 customers. How many
customers does Luke's Auto Wash need to serve in order to earn $15? *
If a person weighs 130 Ibs and they lose 1/10 of their weight.How much weight was lost
Answer:
13 lbs
Step-by-step explanation:
to find 1/10 we divide by 10
This can be found by moving the decimal back by one
So 130/10=13
13 lbs were lost
The person lost 13 lbs of weight.
What is weight?
Weight is the measure of how heavy an object is. Weight is measured in standard customary units. The mass of an object is the amount of material it contains.
Given that, the person weight=130 lbs and he lost 1/10 of his weight.
We need to find how much weight was lost.
Now, weight lost [tex]=\frac{1}{10} \times 130=13[/tex] lbs.
Hence, the person lost 13 lbs of weight.
To learn more about the weight visit:
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Helppp Plzz!!!!!!!!! 20PTS and Brainliest!!!!!!!
Answer: 37.5
Step-by-step explanation:
Use a proportion for this type of problems
What is the unit rate of store A?
•$0.75 / notebook
•$0.50 / notebook
•$0.80 / notebook
•None of the above
What is the unit rate of store B ?
•$0.60 / notebook
•$0.30 / notebook
•$0.55 / notebook
•None of the above
Which store has the better deal per notebook? *
•Store A
•Store B
•The unit rate is the same at both stores
STORE B BECAUSE LOW RATES IS BETTER THAN HIGH
A worker bee has a mass of 0.00011 \text{ kg}0.00011 kg0, point, 00011, start text, space, k, g, end text.
Choose the best approximation of the mass of a worker bee.
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
1 \cdot 10^{-4}\text{ kg}1⋅10
−4
kg1, dot, 10, start superscript, minus, 4, end superscript, start text, space, k, g, end text
(Choice B, Checked)
B
1 \cdot 10^{-3}\text{ kg}1⋅10
−3
kg1, dot, 10, start superscript, minus, 3, end superscript, start text, space, k, g, end text
An African elephant has a mass of 8139 \text{ kg}8139 kg8139, start text, space, k, g, end text.
Choose the best approximation of the mass of an African elephant.
Choose 1 answer:
Choose 1 answer:
(Choice A, Checked)
A
8 \cdot 10^{3}\text{ kg}8⋅10
3
kg8, dot, 10, cubed, start text, space, k, g, end text
(Choice B)
B
8 \cdot 10^{4}\text{ kg}8⋅10
4
kg8, dot, 10, start superscript, 4, end superscript, start text, space, k, g, end text
Approximately how many times as large is the mass of an African elephant as the mass of a worker bee?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
8\cdot 10^68⋅10
6
8, dot, 10, start superscript, 6, end superscript
(Choice B)
B
8\cdot10^78⋅10
7
8, dot, 10, start superscript, 7, end superscript
(Choice C)
C
8\cdot10^88⋅10
8
Answer:
Answer:
1). Option (A)
2). Option (A)
Step-by-step explanation:
1). A worker bee has the mass = 0.00011 kg
In scientific notation we can convert the mass of bee as,
0.00011 =
=
Since 1.1 ≈ 1,
Therefore, 1.1 × 10⁻⁴ ≈ 1 × 10⁻⁴ kg
Option (A) is the answer.
2). An African elephant has a mass = 8139 kg
In scientific notation,
8139 = 8.139 × 10³
Since, 8.139 ≈ 8
Therefore, 8139 kg = 8.139 × 10³ kg
Option (A) is the answer.
Step-by-step explanation: