Answer:
[tex]9x^2-5x-7[/tex]
Step-by-step explanation:
[tex]d(x)=9x^2\\g(x)=5x+7\\d(x)-g(x)=\\(9x^2)-(5x+7)=\\9x^2-5x-7[/tex]
Hope this helps!
Answer:
[tex]9x^{2} -5x-7[/tex]
Step-by-step explanation:
What is the circumference of the circle? (use 3.14 for pi)
28.26 km
56.52 km
56.55 km
113.04 km
Answer:
56.52 km
Step-by-step explanation:
circumference of circle =2πr or dπ
d×π=18×3.14=56.52 km
hope this helps
plzz mark me brainliest
56.52 km is the circumference of the circle.
Determining the circumference of a circle.The given figure is a circle with diameter 18km. The formula for calculating the circumference is expressed as:
C = 2πr
radius = diameter/2
radius = 18km/2
radius = 9km
Substitute to have:
C = 2(3.14)(9)
C = 56.52 km
Hence the circumference of the circle is 56.52 km
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Find the measure of angle RQS.
Answer:
137°
Step-by-step explanation:
Because the minor arc formed by ∠SQT has a degree measure of 43, we know that ∠SQT is 43°. Because ∠RQS and ∠SQT are supplementary, ∠RQS = 137°
All the children of a class were asked to choose between the cartoon shows 'Shin Chan' and 'Tom and Jerry'.The ratio of children who selected the cartoon 'Shin Chan' to those who selected the cartoon 'Tom and Jerry', was 3:1.
If 45 kids selected 'Shin Chan', how many students are there in the class totally?
Answer:
There were 60 kids in class.
Step-by-step explanation:
Since the kids had two choices and the ratio between them was for every 3 children that selected "Shin Chan" only 1 selected "Tom and Jerry", then in order to calculate the number of children in the class if 45 kids selected "Shin Chan", we first need to calculate the number of children that selected the other option. To do that we divide the number by 3. We have:
children(Tom and Jerry) = children(Shin Chan)/3
children(Tom and Jerry) = 45/3 = 15
Therefore the number of children in the class is:
children(class) = children(Tom and Jerry) + children(Shin Chan)
children(class) = 15 + 45 = 60
There were 60 kids in class.
4th question help plzz with steps
I give brainly
Answer:
72 degrees
Step-by-step explanation:
A central angle equals the degree of the arc.
If the circumference is 20 and the arc is 4 than means the
arc is 4/20= 1/5 of the circumference.
A circles circumference is also always equal to 360 degrees.
So we need to find out what 1/5 of 360 is to find the degree of the arc.
So then 1/5*360= 72
so the Arc is equal to 72 degrees of the whole circle, which means the central angle is equal to 72 degrees as well.
Find the volume of the sphere. Round the answer to the nearest tenth.
16 ft
V
ft?
Answer:
804.25 ft cubed
I hope I helped you! If my answer is correct, could you please mark me brainiest? Thanks!
Find the volume of the square pyramid. The work has been started for you.
V = 1
3
Bh
B = 6.5(6.5) = 42.25 m2
A square pyramid. The square base has side lengths of 6.5 meters and the height of 6 meters.
What is the volume of the pyramid?
42.25 m3
84.5 m3
126.75 m3
253.5 m3
Answer:
84.5 cubic meters
Step-by-step explanation:
Hello, I can help you with this.the solution is shown in the problem
let's remember el volume of a pyramid
[tex]Volume= \frac{1}{3}*B*h[/tex]
where B is the area of the base of the pyramid, and h is its height.
Step one
all you have to do is put the values into the equation
Let
B=42.25 square meters
h=6 meters
[tex]Volume= \frac{1}{3}*B*h\\Volume= \frac{1}{3}*42.25\ m^{2} *6\ m\\Volume=\frac{1*42.25*6\ m^{3}}{3} \\Volume=84.5\ m^{3}[/tex]
I really hope this helps you, have a great day.
Answer:
84.5 cubic meters
Step-by-step explanation:
Hello, I can help you with this.the solution is shown in the problem
let's remember el volume of a pyramid
where B is the area of the base of the pyramid, and h is its height.
Step one
all you have to do is put the values into the equation
Let
B=42.25 square meters
h=6 meters
plz make brainliesthelp me whit this pls
Answer:
960cbin
Step-by-step explanation:
Answer:
320
Step-by-step explanation:
The formula for the volume of a pyramid is V= (b x h)/3
v is the volume
b is the base you get it by multiplying the bases length and width in this case it would be 80 in( since 8 x 10 is 80)
h is the height in this case it would be 12 in
V= (b x h)/3
V= (80 x 12)/3
V= (960)/3
V= 320 in
4
Type the correct answer in each box.
If 4 pounds of sugar cost $2, the cost of 1 pound of sugar is $
and the cost of 10 pounds of sugar is $
Reset
Next
Answer:50 cents. $5
Step-by-step explanation: each pound of sugar costs 50 cents. you can find that out by dividing the amount of sugar you have by the cost.
Can someone help me in b please
Find the length QR.
if QP is 6 and PR is 7
Answer: Problee like 20 ft
Step-by-step explanation:
Beetle juice never lies
A cell phone company tests 95 cell phones and finds that 7 of them have defects. Out of 760 cell phones, how many would you expect to have defects?
You can predict that
of the cell phones will have defects.
Answer: 60
Step-by-step explanation:
From the question, a cell phone company tests 95 cell phones and finds that 7 of them have defects. This. means that 7/95 are defective.
If 760 cell phones are tested, the number that will be expected to have defects will be:
= 7/95 × 760
= 59.99
= 60 Approximately
Answer:
56 C:
Step-by-step explanation:
Just divide 95 by 7 yes you heard me right then multip,y by 760 you can use calculator to get 56
If the volume of a cylinder 30 cm high 4620cm^3 find radius
Answer:
7 cm to 1 decimal place
Step-by-step explanation:
We need to know one formula in order to solve this question and it's the volume of a cylinder formula which is π × r² × h where 'r' is the radius and 'h' is the height, we want to work out the radius not the volume so we have to set up an equation to solve for the radius given the information that the volume of the cylinder is 4620 cm³ and the height is 30cm so
→ Step 1 form the equation
π × r² × h = 4620
→ Step 2, substitute in the values in this case we only need to substitute in the height
π × r² × 30 = 4620
→ Step 3, divide 30 from both sides to isolate π and r²
π × r² = 154
→ Step 4, divide both sides by π to isolate r²
r² = 154 ÷ π
r² = 49.0197224723
→ Step 5, square root both sides to isolate 'r'
r = 7.0014086063
So the radius of the cylinder is 7 cm to 1 decimal place
Answer:
7.00 cm.
Step-by-step explanation:
V = π r^2 h so
r^2 = V / π h
r = +√(V / πh)
r = +√( 4620 / 30π)
r = 7 .00cm.
A tennis racquet costing $11.39. If Logan received $5.63 in change, how much money did he give to the cashier? $ Submit Continue Sorry, incorrect... The correct answer is: Got it Explanation review You answered: Got it Learn with an example question Back to practice Questions answered
Answer:
$17.02
Step-by-step explanation:
11.39 + 5.63 = 17.02
Answer:
The asnwer will be $17.02..........................................
Step-by-step explanation:
Find the width of a cereal box that has a volume of 11,340 cm3 and is 35 cm long and 36 cm high.
Answer:
The width is 9 cm
Step-by-step explanation:
L(W)(H) = V
35(W)(36) = 11340
Solve for w
35w(36) - 11340
1260w=11340
divide both sides by 1260 to get 9
Answer:
60,000 cm3
Step-by-step explanation:
cool right
What is the slope of the line that
(2,4), (6,2)
Look at the attached picture
Hope it will be helpful to you....
-pragya~~What scenario could be modeled by the graph below?
A. The number of pounds of apples, y, minus two times the number of pounds of oranges, x, is at most 5.
B. The number of pounds of apples, y, minus half the number of pounds of oranges, x, is at most 5.
C. The number of pounds of apples, y, plus two times the number of pounds of oranges, x, is at most 5.
D. The number of pounds of apples, y, plus half the number of pounds of oranges, x, is at most 5.
Answer:
I would believe that it is A.
Step-by-step explanation:
The fact that A has 5, and x is minus two times, 5/2= 2.5, and that is where the second arrowhead is pointing to on the x axis.
The number of pounds of apples, y, minus two times the number of pounds of oranges, x, is at most 5 which is correct option (A).
What is graph?A graph can be defined as a pictorial representation or a diagram that represents data or values.
What is a Linear Function?A linear function is defined as a function in the form of f(x) = mx + bc where 'm' and 'c' are real numbers.
It represents the line's slope-intercept form, which is written as y = mx + c.
This is because a linear function represents a line, i.e., its graph is a line. Here,
'm' is the slope of the line
'c' is the y-intercept of the line
'x' is the independent variable
'y' (or f(x)) is the dependent variable
According to given graph,
A has a value of 5, and since x is negative two times, 5/2=2.5, which is where the second arrowhead on the x axis is pointing.
So, the total number of the pounds of apples, y minus two times, and the pounds of oranges, x, equals at most five pounds.
Hence, the number of pounds of apples, y, minus two times the number of pounds of oranges, x, is at most 5.
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help plzz. I Give brainly.
With steps plezz
Answer:
64°
Step-by-step explanation:
33k-9=90 (being a right angle)
33k=90+9=99
k=99/33=3
CD=20×3+4=64°
Answer:
arc CD = 64 degrees
Step-by-step explanation:
Find out k value: 33k-9+90=180
33k+81=180
33k=99
k=3
Substitute it in: 20(3)+4=60+4=64
SInce CPD is a central angle, arc CD = 64 degrees
I hope this helped and have a good rest of your day!
In the problem 8^3 - 10 × 5 - 4, which step should you perform first?
Answer:
PEMDAS
Step-by-step explanation:
P=Parenthesis
E=Exponent
M=Multiply
D=Division
A=Addition
S=Subtract
The first step you should perform is the exponent 3 of base 8.
What is BODMAS Rule?BODMAS rule is the rule used when solving expressions involving more than one operations.
It is the abbreviation of Brackets, Order, Division, Multiplication, Addition, Subtraction, which is the order of the operations to be done.
The given expression is 8³ - 10 × 5 - 4.
We know the rule of BODMAS.
since the given expression includes more than one operations, we have to follow the rule of BODMAS.
There are no brackets in the expression.
There is a power of 3 for the base 8.
We should perform that in the first step.
8³ - 10 × 5 - 4 = 512 - 10 × 5 - 4
Next we do the operation of multiplication.
512 - 10 × 5 - 4 = 512 - 50 - 4
There is subtraction.
512 - 50 - 4 = 566
Hence the operation of the power is done first.
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Please help me with this question. I will award brainliest answer!!
Answer:
A. 13 ft
Step-by-step explanation:
Volume= [tex]\frac{4225pi }{3}[/tex]ft³
Height= 25
Volume= πr²[tex]\frac{h}{3}[/tex]
Volume= 3.14 ×r²×[tex]\frac{25}{3}[/tex]
[tex]\frac{157}{6}[/tex] r²= [tex]\frac{4225pi }{3}[/tex]
r²= [tex]\frac{4225\pi }{3}[/tex] × [tex]\frac{6}{157}[/tex]
r²= 169 (estimate)
r=√169
r= 13
21/-21. What is 21 divided by negative 21?
Answer:
-1
Step-by-step explanation:
Answer: 21/-21=-1
Step-by-step explanation:cut 21 two time,and add the minus and the answer -1
PLEASE HELP!!
Which method would be used to best prove the two triangles are similar? (Reminder, arrows represent parallel lines.)
A. AA Similarity Theorem
B. ASA Similarity Theorem
C. SAS Similarity Theorem
D. SSS Similarity Theorem
E. There is not enough information provided
Answer:C
Step-by-step explanation:Both sides are dilated by 2.5. The bottom line of both triangles are connected, and the left side is parallel, which means that they have the same angle making it SAS~
What is the measure of
Answer:
The measure is the measure that it is you forgot the picture
Step-by-step explanation:
Please solve this ASAP! I WILL GIVE 20 points!
Answer:
15 parts
Step-by-step explanation:
Sugar: 20/4=5 you are doing five times the recipe because your using 5 times as much sugars. So for the flour 3*5=15
A veterinarian knows that a 50-pound dog gets 0.5 milligram of a certain medicine, and that the number of milligrams, m, varies directly with the weight of the dog, w. The vet uses these steps to find the amount of medicine to give a 10-pound dog.
Step 1 Find the constant of variation.
k = StartFraction 0.5 Over 50 EndFraction = 0.01
Step 2 Write the direct variation equation.
m = 0.01 w
Step 3
Substitute 10 into the equation to find the dosage for a 10-pound dog.
10 = 0.01 w
Step 4
Solve for w.
10 = 0.01 w. w = 1000.
The 10-pound dog needs 1000 milligrams.
In which step did the veterinarian make the first error?
In the third step, 10 is the mass of the dog. As such, it should have been substituted to w and not to m.
Answer:
its c/third step
Step-by-step explanation:
trust -w-
A cone is cut by a plane as shown, parallel to the base. The cross-section of the cone and the plane is...
Answer:
a circle
Step-by-step explanation:
parallel to the base meaning that it has to be parallel to the circle on the bottom of the base. Picture yourself cutting the cone where the plane is and see what shape that is. It's a circle
PLEASE HELP!!
Howard has been asked to draw a map of the Federalist Triangle in Washington, D.C. (pictured below) The actual
Federalist Triangle has a base of 3000 ft. and a height of 1200ft. On Howard's map the base of the triangle is 10
inches. What should the height of the triangle be?
A. 2 inches
B. 4 inches
C. 6 inches
D. 8 inches
E. There is not enough information to determine
Dylan is wrapping a birthday present for his sister. The box the gift is in has a length of 6 inches, a width of 5 inches,
and a height of 3 inches. What is the minimum amount of wrapping paper Dylan will need to completely cover the
box?
TI
Answer:
126 square inches of wrapping paper
Step-by-step explanation:
To compute for the minimum amount of wrapping paper Dylan will need to completely cover the box, you have to compute the surface area of the box. The formula in getting the surface area of a rectangle is:
A = 2WL + 2LH + 2HW
Substituting the given measurements to the formula:
A = 2(5)(6) + 2(6)(3) + 2(3)(5)
A = 60 + 36 + 30
A = 126 square inches
Therefore, Dylan needs to purchase at least 126 square inches of wrapping paper to completely cover the box.
Answer:
Step-by-step explanation:
# 1. Using the data set below find the MEAN:
15, 12, 7, 8, 6, 14, 8, 12, 17
Answer:
11
Step-by-step explanation:
15+12+7+8+6+14+8+12+17= 99
99 divided by 9 = 11
u divide it by 9 because u added 9 numbers together
Sumiko and Chung are shopping. Chung wants to buy a video game that costs $60, and Sumiko wants to buy a new pair of sunglasses for $80. In their possession, they have a gift card for $20 dollars, applied after taxes, and a 15 percent off coupon, applied before taxes. Sumiko and Chung want to use their remaining money to buy lunch, which they will split, at the mall. Assuming that taxes are 8.7 percent, who should use which savings option to ensure they have the most money remaining for lunch?
Answer:
1.83
Step-by-step explanation:
First, add the game and glasses. Write down the number you just got. Now, multiply by 0.15.
Take the second away from the first.
Now multiply that by 0.087
Finally, take 20 away
That is how much money you have spent.
Use both savings so they both get a huge meal.
The width of a rectangle is 5 inches. The length of the rectangle is twice the width. Find the perimeter of the rectangle.
PLZZZZZZZZ HELP
Answer: the perimeter of the rectangle is 30
Step-by-step explanation: so we know that the width of the rectangle is 5. Then it says that the length is two times more than the width....
5 times 2
Which is 10
Now all is left, you find the perimeter (all sides)
5+5+10+10
10+20
30
Therefore,
The perimeter of the rectangle is 30
Answer: 30
Step-by-step explanation: If the width is 5 and the length is twice the width then the length is going to be 10.
p=2(L+W)= 2(10+5)
2 x 15= 30