Answers
Answer:
7 = 49 ÷ r
Step-by-step explanation:
To find the equation that is true when r = 7, we need to find a number after the equals sign that is a multiple of 7.
Multiples of 7:
7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77...
Therefore, the only answer option in which the number after the equals sign is a multiple of 7 is:
7 = 49 ÷ r
To prove this, input r = 7 into each of the equations:
6 = 30 ÷ r
⇒ 6 = 30 ÷ 7
⇒ 6 ≠ 4.285... ← incorrect!
7 = 54 ÷ r
⇒ 7 = 54 ÷ 7
⇒ 7 ≠ 7.714... ← incorrect!
7 = 49 ÷ r
⇒ 7 = 49 ÷ 7
⇒ 7 = 7 ← correct!
9 = 72 ÷ r
⇒ 9 = 72 ÷ 7
⇒ 9 ≠ 10.285... ← incorrect!
Related Questions
1. What is the volume of the cone? (Use 3.14 for *)
904.8 cubic feet
226.2 cubic feet
75.4 cubic feet
301.6 cubic feet
Answers
Answer:
C) 75.36 cubic feet
Step-by-step explanation:
Volume of a cone: ⅓hπr²
Given:
r (radius) = 3 fth (height) = 8 ftπ ≈ 3.14Substitute the given values to find the volume:
V = (⅓)(8)(3.14)(3)²
V = (⅓)(8)(3.14)(9)
V = (⅓)(226.08)
V = 75.4 ft³ (nearest tenth)
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Convert -4x+2y=16 to slope intercept form simplify your answer
Answers
[tex]\text{Slope-intercept form is y=mx+c, where m is the slope and c is the y-intercept.}\\ \\~~~~~-4x+2y = 16\\\\\implies 2y = 16+4x\\\\\implies y = \dfrac 12(16+4x)\\\\\implies y = 8 + 2x\\\\\implies y=2x +8\\\\\text{It is now in the slope-intercept form.}[/tex]
Jonah bought 4 boxes of donuts that each contained 12 donuts. When he gets to work, he will serve the donuts on 5 plates. If he puts the same number of donuts on each plate, what is the greatest number of donuts he could put on each plate?
Answers
To check it:
9 x 5 = 45— 9 is the highest number of donuts to be put on each plate, because we can’t go over 48 and each plate has to have the same amount
10 x 5 = 50—- 10 is too high because Jonah only has 48 donut’s to share not 50
find the x of these multiplication
6) 3x = 27
7) 5x = 35
8) 2x = 24
Answers
X = 9
7) do the same process, X = 7
8) do the same process, X = 12
Hey there!
QUESTION #6.
3x = 27
DIVIDE 3 to BOTH SIDES
3x/3 =27/3
SIMPLIFY IT!
x = 27/3
x = 9
Therefore, the answer should be:
x = 9
QUESTION #7.
5x = 35
DIVIDE 5 to BOTH SIDES
5x/5 = 35/5
SIMPLIFY IT!
x = 35/5
x = 7
Therefore, the answer should be:
x = 7
QUESTION #9.
2x = 24
DIVIDE 2 to BOTH SIDES
2x/2 = 24/2
SIMPLIFY IT!
x = 24/2
x = 12
Therefore, the answer should be:
x = 12
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
75 points Dilations of Segments and Angles
CD is dilated by a scale factor of 3/4 to form C ′ D ′ . CD measures 2. What is the measure of C ′ D ′ ?
Answers
Answer
0.823742
Step-by-step explanation:
just a genius
The sales tax in some places in Texas is 8.25%. Which function
represents the cost of purchasing x dollars of products, including tax?
Answers
Taxes usually increase how much you pay from the purchase price. To find the tax charged on the purchase, multiply the tax rate by the purchase.
$28.38 × 0.0825 = $2.34
The tax charged is $2.34
I need help asap I'm not good at math and this makes no sense
Answers
Answer:
Total Volume grain elevator holds - 20357.52
Volume needed for 100-acre field - This is all you need to find. If the volume is more than what the grain elevator can hold than there will need to be a rented one as well. If the volume of the grain is lower than what the grain elevator holds, than that's all you need.
Step-by-step explanation:
You have to find how much volume you would need to hold harvest from a 100-acre field.
Then you have to find how much volume is in the grain elevator.
In order to find the volume of the grain elevator you have to divide it up by the cylinder and the cone.
Cone volume - V=πr^2(h/3)
V=2035.75
Cylinder volume - V=πr^2h
V=18321.77
. A five-question multiple-choice quiz has five choices for each answer. Use the random number table provided, with 0’s representing incorrect answers and 1’s representing correct answers, to answer the following question: What is the probability of correctly guessing at random exactly one correct answer? Round your answer to the nearest whole number. 15% 7% 27% 10%
Answers
The probability of correctly guessing at random exactly one correct answer will be 15%. Then the correct option is A.
What is probability?Its simple notion is that something will most likely occur. The favorable event's proportion to the overall number of occurrences.
A five-question multiple-choice quiz has five choices for each answer.
Use the random number table provided, with 0’s representing incorrect answers and 1’s representing correct answers, to answer the following question.
Then the probability of correctly guessing at random exactly one correct answer will be
P (X = x) = ⁿCₓ × pˣ × (1 - p)⁽ⁿ⁻ˣ⁾
The probability of success will be 0.5. Then we have
P (X = 1) = ⁵C₁ × p¹ × (1 - p)⁽⁵ ⁻ ¹⁾
P (X = 1) = 0.15625
P (X = 1) = 15.625%
P (X = 1) ≅ 15%
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The radius of a circle is 10 m. Find its area to the nearest whole number.
I need help rn it’s a final I need it asap
Answers
radius= 10 m
to find:the area of the given circle.
solution:[tex]a = \pi {r}^{2} [/tex]
[tex]a = \pi \times {10}^{2} [/tex]
[tex]a = 314.15927 \: {m}^{2} [/tex]
[tex]a = 314 \: {m}^{2} [/tex]
therefore, the area of the given circle is 314 square meters.
[tex]\large\boxed{Formula: a= \pi{r}^{2}}[/tex]
In this question raduis is given so we'll simply have to solve.
Let's solve!
The area of a circle is π times the radius squared.
Substitute the values according to the formula.
[tex]a= \pi \times {10}^{2}[/tex]
[tex]a= 314.1592654 \: {m}^{2}[/tex]
Now, we can round off to the nearest whole number.
The value in tenths place is less than 5 so we won't have to round up.
Final answer:
[tex]\large\boxed{a= 314 \: {m}^{2}}[/tex]
Hence, the area of the circle given in the question is 314 square inches to the nearest whole number.
what is the mean age of a girl on the swimming team?
Answers
Answer:
15Step-by-step explanation:
what is the mean age of a girl on the swimming team?
adding the number of girls together and then dividing by the number of girls
(15 + 17 + 19 + 12 + 14 + 18 + 12) : 7 =
107 : 7 = 15.28 (you can round at 15)
Joaquin estimates his score on his science test. Joaquin's estimate has a 3% error. His actual score on the science test is 91. What could be Joaquin's estimate? Choose all the correct answers. please go to the pic for the answer
Answers
Joaquin's estimate for his score on the science test can either be 93.73 or 88.27.
What is the estimate on the science test?
Percentage can be described as a fraction of an amount that is usually expressed as a number out of hundred.
Estimate of the score can either be greater than or less than 91.
Score estimate = (1.03 x 91) or (0.97 x 91) = 93.73 or 88.27.
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Please help me please
Answers
+ 5 square root 2 / 2 for second one
An item has a listed price of $30 . If the sales tax rate is 9% , how much is the sales tax (in dollars)?
Answers
Answer:
2.7$
Step-by-step explanation:
Hellppp Im DYING TO KNOW THE ANSWER RNN-
Answers
How does the graph of g(x) = (x − 2)^3 + 6 compare to the parent function of f(x) = x^3?
g(x) is shifted 2 units to the right and 6 units down.
g(x) is shifted 2 units to the right and 6 units up.
g(x) is shifted 2 units to the left and 6 units down.
g(x) is shifted 6 units to the left and 2 units down.
Answers
The transformation to the parent function f(x) from g(x) is (b) g(x) is shifted 2 units to the right and 6 units up
How to compare the graphs?The equations are given as:
f(x) = x^3
g(x) = (x - 2)^3 + 6
The function g(x) can be rewritten as:
g(x) = (x - h)^3 + k
This means that the function f(x) is shifted right by h units and shifted up by k units.
By comparison:
h = 2 and k = 6
Hence, the transformation to the parent function f(x) from g(x) is (b) g(x) is shifted 2 units to the right and 6 units up
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Hello I really need help with this
Answers
Answer:
7
Step-by-step explanation:
The sides are in proportion.
[tex]\frac{AC}{DF} = \frac{AB}{DE}[/tex]35/? = 20/435/? = 5? = 35/5? = 7Answer:
7
Step-by-step explanation:
Given,
△ABC ~ △DEF
( ~ means similar )
To find : missing side length
Similar triangle rule : -
If two triangles are similar, their corresponding sides are similar.
So,
AB ~ DE
BC ~ EF
AC ~ DF
Let the missing side length ( DF ) be " x ".
Note : -
When the corresponding sides are divided, their ratios will be same.
That is,
AB / DE
= 20 / 4
= 5 / 1
= 5 : 1
BC / EF
= 40 / 8
= 5 / 1
= 5 : 1
AC / DF should also be equal to 5 : 1.
AC / DF = 5 : 1
35 / x = 5 / 1
Cross multiply,
x * 5 = 35 * 1
5x = 35
Divide 5 on both sides,
x = 35 / 5
x = 7
Therefore,
the missing side length is 7.
SOMEONE PLEASE HELP WILL MARK BRAINLIEST
Answers
Answer:
73.40°
Given a right angle triangle.
Solve the missing angle using cosine rule.
[tex]\sf cos(x) = \dfrac{adjacent}{hypotenuse}[/tex]
Here given:
adjacent: 2
hypotenuse: 7
angle: x
Solve:
[tex]\rightarrow \sf cos(x) = \dfrac{2}{7}[/tex]
[tex]\rightarrow \sf x = cos^{-1}(\dfrac{2}{7})[/tex]
[tex]\rightarrow \sf x =73 .40^ \circ \:[/tex]
Which sign makes the following statement true? 3.9 _____ 9/10
Answers
Answer:
>.
Step-by-step explanation:
3.9 is greater than 9/10 ( = 0.9)
Harold bought an 8 pound bag of birdseed to use in his bird feeder. How many
ounces is this?
Answers
Answer:
Your answer is 128 oz
Step-by-step explanation:
1 Ounce = 0.0625 Pounds
pounds cancel and leave oz.
8 lb * 1 oz / 0.0625 lb = 128 oz
Answer:
128 oz
Step-by-step explanation:
1 lb = 16 oz
8 lb × 16
= 128 oz
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 5 to 8 . If there were 7761 total votes, how many yes votes were there?
Answers
Answer:
2,985 yes votes
Step-by-step explanation:
Ratio of yes votes to no votes was 5 to 8, we can write the following equation:
Yes : no : total = 5 : 8 : 13
Knowing the total votes was 7,761, thus the number of yes votes = (5/13) * 7,761 = 2,985 votes.
Does anyone know the answer to X - 5y
Answers
Answer:
Slope is 1/5
y intercept is (0,0)
Which choice is equivalent to the expression below? Use the FOIL method.
(√x-2)(√x + 3)
A) x-6
B) x+√x +6
C) x-√x -6
D) x+√x-6
Answers
Answer:
D) x + √x - 6.
Step-by-step explanation:
(√x-2)(√x + 3)
= √x*√x + 3*√x - 2*√x - 2*3
= x + √x - 6.
Work out the sheet given
Answers
Answer:
red colour is 7...blue is 3 ...green 9...yellow 13...purple 8
May I please get your help with this equation
Answers
Answer:
A) u=<9, 7>; v=<8, -2>
B) u+v = <17, 5>
C) 5u-2v = <29, 39>
Step-by-step explanation:
The component form of a 2-dimensional vector is usually written as an ordered pair with the horizontal component listed first. When vectors are added or subtracted, or multiplied by a scalar, the components are treated individually. Angle brackets may be used to signify the ordered pair represents a vector.
__
A.The horizontal and vertical dimensions of each of the vectors can be found by subtracting their coordinates, or by counting grid squares. Up or right is positive. The tail coordinates are subtracted from the head coordinates.
u = <11 -2, 1 -(-6)>
u = <9, 7>
v = <13 -5, 6 -8>
v = <8, -2>
__
B.The sum is the sum of the individual coordinates:
u +v = <9, 7> +<8, -2> = <9 +8, 7 -2>
u +v = <17, 5>
__
C.The weighted sum is the weighted sum of the individual coordinates:
5u -2v = 5<9, 7> -2<8, -2> = <5(9) -2(8), 5(7) -2(-2)>
5u -2v = <29, 39>
_____
Additional comment
Vector operations can often be conveniently done on a calculator by considering them as complex numbers. The vertical component corresponds to the imaginary component of a complex number.
Simplify the equation √-42×√-30
Answers
Answer:
-6 [tex]\sqrt{35}[/tex]
Step-by-step explanation:
Answer:
[tex]6\sqrt{35}i[/tex]
Step-by-step explanation:
Which of the following is a quadratic equation that has the roots x = 2 and x = −7? (4 points)
Answers
Answer:
x^2 + 5x - 14
Step-by-step explanation:
We can assume that if there is 2 options for x, this is a quadratic equation that equals 0.
Therefore, we can put this into brackets as one bracket must equal 0.
(x - 2) (x + 7)
After this we expand, which is a process easier to search up
The answer is:
x^2 + 7x - 2x - 14
We can simplify this to:
x^2 + 5x - 14
x^2 represents x squared in case you were wondering
Therefore, the answer is:
x^2 + 5x - 14
The following table gives the statements and justifications for solving the equation 4(x - 7) + 14 =
3x - 9.
Which of the following gives the justification steps in the correct order?
Answers
Answer:
From top to bottom:
Simplify
Combine like terms
Subtract 3x from both sides
Add 14 on both sides
Step-by-step explanation:
Hope this helps
On Saturday, Finley rode the bus from her apartment 3.35 miles to the city park
and then 2.51 miles to the library. On Sunday, Finley rode the bus 2.12 miles to thi
art museum. What is the total number of miles Finley rode the bus on Saturday
and Sunday?
Answers
The total number of miles Finley rode the bus on Saturday and Sunday is 7.98 miles
Calculating distanceFrom the question, we are to determine the total distance travelled by Finley on Saturday and Sunday
From the given information,
On Saturday, Finley rode the bus from her apartment 3.35 miles to the city park and then 2.51 miles to the library
Total distance travelled on Saturday = 3.35 miles + 2.51 miles
Total distance travelled on Saturday = 5.86 miles
Also,
On Sunday, Finley rode the bus 2.12 miles to the art museum
Total distance travelled on Sunday = 2.12 miles
∴ Total distance travelled on Saturday and Sunday = 5.86 miles + 2.12 miles
Total distance travelled on Saturday and Sunday = 7.98 miles
Hence, the total number of miles Finley rode the bus on Saturday and Sunday is 7.98 miles.
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what function is represented below?
Answers
Answer:
the second i think i dont know for sure
Five workers together can build a road in 20 days. Suppose every worker works at the same rate. Three workers work on the road for 10 days before eleven more workers join them. How much longer will it take the fourteen workers to finish the road?
Answers
Answer:
5 days
Step-by-step explanation:
This problem is an inverse proportion case. Having two variables: number of workers and time (in days); when we increase the number of workers, the time needed decreases; vice versa. Therefore, we can use the multiplication method: (workers * time) will always stay constant.
Let's say the time (in days) needed by the eleven workers is t,
5*20 = (3*10) + (14*t)
100 = 30+14t
70 = 14t
5 = t
It will take the eleven-workers 5 more days to finish the road.