sorry bro i let my brother try to solve random problems on here
Answer:
[tex]x=-6,\: x=1[/tex]
Step-by-step explanation:
[tex](x+2)(x+3)=12\\\\x^2+5x+6=12\\\\x^2+5x-6=0\\\\(x+6)(x-1)=0\\\\x=-6,\: x=1[/tex]
The length of a screw is 0. 75 centimeter. How many screws
can be placed end to end to make a row that is
18 centimeters long
Answer:
the answer is 24 screws
Step-by-step explanation:
so if one screw is 0.75cm. all you have to do is divide
0.75/18=24
What are the answers to the yellow boxes?
[tex] \frac{ - 16}{ - 4 \times 1} = \frac{ - 16}{ - 4} [/tex]
Since, Both sides are equal we can eliminate one of them and then divide the given equation i.e.
[tex] - 16 \div - 4[/tex]
Now, When we divide (-) & (-) we get the answer in (+).. So, Our answer will be
[tex]4[/tex]
Final answer:-
= -16÷-4 = 4A doctor gave his patient liquid medicine and told him to drink 85 cups over the next 10 days. How much should the patient drink each day
Answer:
8.5 cups per day
Step-by-step explanation: The answer is very simple. 85/10 equals 8.5 cups per day! Good Luck! Stay Brainy!
23. The dimensions of a rectangular prism are shown in the diagram.
10 in.
8 in.
16 in.
What is the total surface area in square inches of the prism?
Rosure to use the correct blare value
The solution is, 736 in^2 is the total surface area in square inches of the prism.
What is surface area?Surface area is the amount of space covering the outside of a three-dimensional shape. The surface area of a solid object is a measure of the total area that the surface of the object occupies.
here, we have,
we know that
the total surface area of a prism is equal to
SA=2B+Ph
where
B is the area of the base
P is the perimeter of the base
h is the height of the prism
Let
L=10 in
W=8 in
H=16 in
so
B=L*W
=80 in^2
P=2(L+W)
=36 in
H=16 in
therefore
SA=2(80) + 36 * 16
SA=736 in^2
Hence, The solution is, 736 in^2 is the total surface area in square inches of the prism.
learn more on surface area click :
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What is Y-x=4 x+y=6 system by substitution
Answer:
x=1 y=5
Step-by-step explanation:
y-x= 4
to find y
add x to both sides
y=4+x
x+y= 6
substitute y in
x+4+x=6
4+2x=6
subtract 4 from both sides
2x=2
x=1
substitute x=1
1+y=6
subtract 1 from both sides
y=5
What's the value of the 7 in the number 53.75 give the answer as a fraction
Answer:
The value of 7 in the number 53.75 is 7/10 and this can be determined by using the arithmetic operations.
Step-by-step explanation:
Given :
Number -- 53.75
The following steps can be used in order to determine the value of 7 in the number 53.75:
Step 1 - Write the given number.
= 53.75
Step 2 - Determine the value of 7 in the above number that is:
= 0.7
Step 3 - Rewrite the value obtained above in the fraction formate.
= 7/10
So, the value of 7 in the number 53.75 is 7/10.
A dog won a race at the local fair by running 13 1/4 miles in exactly hours. At this constant rate, how long does it take the same dog to run the 5 3/10-mile state fair race? Use ratio reasoning to solve.
that is really hard thinking
I need help very quickly ! Worth 20 pts. Pls provide work attached that is eligible
a) y = 9216
b) y = 360
Since x and y vary directly, y and x are directly related and can be expressed as y = kx. where k is a constant
y will increase as x increases. y will also decrease as x decreases.
I used k1 and k2 to separate the two questions and avoid confusion but using the constant k is fine.
a) For part a, you can substitute y = kx with the values of y and x.
[tex]1024 = k1 \times 9[/tex]
Hence, we can find the constant k1
[tex]k1 = \frac{1024}{9} [/tex]
Now, we can plug in the values into the original equation and obtain the new equation
[tex]y = \frac{1024}{9} x[/tex]
We can now solve part a by plugging in 81 into the value of x.
[tex]y = \frac{1024}{9} \times 81 = 9216[/tex]
b) Like part a, we can use the same method to find y for part b.
substitute y = kx with the values of y and x.
[tex]72 = k2 \times \frac{1}{2} [/tex]
Hence, we can find the constant k2
[tex]k2 = 72 \div \frac{1}{2} = 144[/tex]
Now, we can plug in the values into the original equation and obtain the new equation
[tex]y = 144x[/tex]
We can now solve part a by plugging in 5/2 into the value of x.
[tex]y = 144 \times \frac{5}{2} = 360[/tex]
A circular pond is to be surrounded by a fence.The radius of the pond is 3.2 m.How many meters of fence is needed to enclose the pond?
Answer:
≈ 20 m
Step-by-step explanation:
the circumference (C) of a circle is calculated as
C = 2πr ( r is the radius ) , then
C = 2π × 3.2 = 6.4π ≈ 20
length of fence needed is approximately 20 m
PLS ANSWER QUICK
Rewrite each square root using the imaginary unit i.
Square root -54
Answer: Square root -67
step explanation:
Select the functions that have identical graphs.
1.) y = sin(3x +pi/6)
2.) y = cos(3x - pi/6)
3.) y = cos(3x - pi/3)
Answer:
Answer C.
Step-by-step explanation:
1 and 3
A kitten was given to a child as a birthday present when she was two years old. The cat lived a good life, but eventually became old and passed away. If the sum of the ages totaled 30, how old was the cat when it died?
Answer: 14 years
Step-by-step explanation:
Let the cat's age when it died = x.
Therefore, the child's age is 2 + x because he/she got the cat when he/she was 2 years old.
We can set up an equation.
x + (2+x) = 30
2x + 2 = 30
2x = 28
Therefore, x = 14
Answer:
I would say 14
Step-by-step explanation:
Since the child was 2 years older from the start she would be 16 if the cat was 14. Adding them together makes it 30
Have an amazing day!
Please rate and mark brainliest!
:)
f(x) = 2/x, find f'(x)
Answer:
-2(x)^-2 OR -2/(x^2)
Step-by-step explanation:
2/x is also equal to 2(x)^-1
-1*2(x)^-1-1
-2(x)^-2 OR -2/(x^2)
Answer:
f(x)=2/x
Step-by-step explanation:
Describe how angle measures affect the number of triangles that can be constructed.
Adele made bookmarks and name tags for her friends. The number of bookmarks she made is 4 times as many as the number of name tags she made. If she made 8 name tags, how many bookmarks did she make?
A.
12
B.
32
C.
40
Answer:
32
Step-by-step explanation:
The number of bookmarks she made is 4 times as many as the number of name tags she made.
4 times = 4*
If she made 8 name tags, how many bookmarks did she make?
Hence, equation is 4*8 which equal 32.
[RevyBreeze]
Roberto said, "I'm thinking of a fraction that is equivalent to
3/9. The denominator is 2 more than the numerator." What fraction is Roberto thinking of? Enter the numerator in the top blank space and the denominator in the bottom blank space.
MARKING BRAINLIEST
Answer:
As I answered in the other one the answer is 1/3
Step-by-step explanation:
The ticket manager for a minor league baseball
team awarded prizes by drawing four numbers
corresponding to the ticket stub numbers of four
fans in attendance.
In this situation, the sample consists of the
people selected to win a prize. The population
consists of the spectators who purchased
tickets to attend the game.
The sample and population of the given question are respectively; 4 people and all the spectators.
What is sample and population?
A population is defined as the entire group that you want to draw conclusions about. Meanwhile, a sample is the specific group that you will collect data from and as such the size of the sample is always less than the total size of the population.
In this question, we can see that the population is all the spectators while the sample are 4 people selected.
Read more about sample and population at; https://brainly.com/question/7301139
A student was asked to find the slope of the line through the points (4,8) and (-3,5). His answer, [tex]-\frac{3}{7}[/tex], was incorrect. He showed his work as [tex]\frac{5-8}{4-(-3)}[/tex]=[tex]-\frac{3}{7}[/tex]=[tex]-\frac{3}{7}[/tex].
What went wrong? Give the correct slope.
Answer:
[tex]m=\frac{-3}{-7}[/tex]
Step-by-step explanation:
Given the following question:
Point A = (4, 8) = (x1, y1)
Point B = (-3, 5) = (x2, y2)
In order to find the slope any two points given we use the formula to find slope or rise/run.
[tex]m=\frac{y2-y1}{x2-x1}[/tex]
[tex]m=\frac{5-8}{-3-4} =\frac{-3}{-7}[/tex]
[tex]m=\frac{-3}{-7}[/tex]
The reason why the students answer is incorrect because he substituted incorrectly. More specifically the run part of the formula for slope. The formula for slope goes x2 - x1 which means it should be -3 - 4, not -4 - 3, which will give you the answer -7.
Hope this helps.
PLEASE HELP!!
WILL GIVE BRAINLIEST
Answer:
12
Step-by-step explanation:
congruent sides
Answer:
12
Step-by-step explanation:
the oppisite side is 48 so being we have 36 we do 48-36 giving you 12 hope this helps :)
HELP ASAP
WORTH 10 POINTS
Answer:
0.15 InchesStep-by-step explanation:Ok so here AVERAGE HEIGHT OF BLUEBIRD = 4 1/4 INCHES WHICH IS 4.25 and the AVERAGE HEIGHT OF REDBIRD WHICH IS 4.4 Now we substract 4.4-4.25= 0.15pease answer my question 23 mins ago 40 points and brainly
Answer:
i will go look
Step-by-step explanation:
In the given figure, what is the value of x?
32 in
X
16 in
х
0
The value of x is lin.
(Round to the nearest tenth as needed.)
x+∠QSR+∠UST=180x+∠QSR+∠UST=180 (straight line =180) and ∠R+∠T=90∠R+∠T=90 (as PRT is a right angle)
(1) The length of line segment QR is equal to the length of line segment RS --> triangle QRS is isosceles --> ∠RQS=∠QSR=180−∠R2∠RQS=∠QSR=180−∠R2 (as ∠RQS+∠QSR+∠R=180∠RQS+∠QSR+∠R=180 --> 2∗∠QSR+∠R=1802∗∠QSR+∠R=180 --> ∠QSR=180−∠R2∠QSR=180−∠R2). Not sufficient.
(2) The length of line segment ST is equal to the length of line segment TU --> triangle UST is isosceles --> ∠SUT=∠UST=180−∠T2∠SUT=∠UST=180−∠T2. Not sufficient.
(1)+(2) x+∠QSR+∠UST=180x+∠QSR+∠UST=180 --> x+180−∠R2+180−∠T2=180x+180−∠R2+180−∠T2=180 --> x+360−(∠R+∠T)2=180x+360−(∠R+∠T)2=180 --> since ∠R+∠T=90∠R+∠T=90 --> x+360−902=180x+360−902=180 --> x=45x=45. Sufficient.
Lily bought stock in a company two years ago that was worth xx dollars. During the first year that she owned the stock, it decreased by 5%. During the second year the value of the stock decreased by 15%. Write an expression in terms of xx that represents the value of the stock after the two years have passed.
Answer: 0.8075x
Step-by-step explanation: see photo
this qustion is from revel math i grade 8
Answer:
m<2 = 120
m<1 = 60
Step-by-step explanation:
m < 10 + m<11 = m<2
180 - m<12 =
120
m<2 = 120
m<1 = 60
Brainliest Appreciated
Somebody help me grid math is my hard for me.
Answer:
he needs 1/2 of a tablespoon of curry or 4/8
A car travels a distance of 300 km in a time of 5 hours.
What is the car's average speed?
Step-by-step explanation:
so, if car have 120km/hr it maximum speed will be 85-95km/hr so the car travel 300km in around 5 or 5 unhalf hour
Please help!! 40 POINTS AND WILL MARK BRAINLIEST!!!!! THANKS
A scoop of ice cream in the shape of a whole sphere sits in a right cone. The radius of the ice cream scoop is 2.0 cm and the radius of the cone is 2.0 cm.
What is the volume of the scoop of ice cream? Show all your work.
How tall must the height of the cone be to fit all the ice cream without spilling if it melts? Show all your work.
So we are first trying to find the volume of a scoop which is essentially half a sphere.
A sphere's volume equation is [tex]\frac{4}{3} \pi r^{3}[/tex] but times '1/2' in this case as we only need half of it.
Since the radius of the scoop is 2cm, we get the equation:
[tex]\frac{4}{3} \pi *2^{3} *\frac{1}{2} = \frac{16}{3}\pi = 16.755[/tex]
So the volume of the scoop is 16.755 cubic centimeters.
For the cone to fill with melted ice cream and not spill, that means the volume of the scope must equal the volume of the cone.
the volume of cone = volume of half of sphere
[tex]\frac{1}{3} \pi r^{2} h = \frac{16}{3} \pi \\\frac{1}{3 } \pi 2^{2} h=\frac{16}{3} \pi \\h = 4\\\\[/tex]
The height of the cone must be 4cm to fit all the ice cream without spilling if it melts.
Hope that helps!
Answer:
To find the volume of the scoop of ice cream, we can use the formula for the volume of a sphere. The volume of a sphere is given by:
V_sphere = (4/3) * π * r^3
where r is the radius of the sphere.
Given that the radius of the ice cream scoop is 2.0 cm, we can substitute this value into the formula:
V_sphere = (4/3) * π * (2.0 cm)^3
V_sphere = (4/3) * π * 8.0 cm^3
V_sphere = 33.51 cm^3 (rounded to two decimal places)
So, the volume of the scoop of ice cream is approximately 33.51 cm^3.
To find the height of the cone that would accommodate the melted ice cream without spilling, we need to consider the volume of the cone. The volume of a cone is given by:
V_cone = (1/3) * π * r^2 * h
where r is the radius of the cone and h is the height of the cone.
In this case, the radius of the cone is also 2.0 cm, and we know the volume of the ice cream scoop is 33.51 cm^3. Setting these values equal to each other, we have:
33.51 cm^3 = (1/3) * π * (2.0 cm)^2 * h
33.51 cm^3 = (1/3) * π * 4.0 cm^2 * h
33.51 cm^3 = (4/3) * π * h
Now, we can solve for h by multiplying both sides by (3/4) and dividing by π:
h = (33.51 cm^3) * (3/4π)
h ≈ 8.46 cm (rounded to two decimal places)
Therefore, the height of the cone should be approximately 8.46 cm to fit all the melted ice cream without spilling.
PLEASE MARK AS BRAINLIEST
PLEASE PLEASE HELP!!!! WILL GIVE BRAINLIEST!Which system of inequalities is represented by the graph?
Answer:
I'm sorry I don't have the answer but I'm sure someone will help you
Step-by-step explanation:
im really sorry
Rewrite using a single positive exponent.
6^5
6
Answer:
[tex]6^{4}[/tex]
Step-by-step explanation:
using the rule of exponents
[tex]\frac{a^{m} }{a^{n} }[/tex] = [tex]a^{(m-n)}[/tex]
note that 6 = [tex]6^{1}[/tex] , then
[tex]\frac{6^{5} }{6}[/tex] = [tex]6^{(5-1)}[/tex] = [tex]6^{4}[/tex]
Camille is working in craft class to create new pillows for her room. Each pillow will be made from exactly 36 in2 of material. Camille has drawn these shapes out to design a pattern for her pillow.
hurry help i dont have long in this class im in iss for breaking a pencil
The best design for Camille is the one in which the area matches the total of material she wants to use for each pillow.
What should Camille consider for her design?Camille's main restriction is the material per pillow since she needs every pillow to use only 36 inches of material. Due to this, she needs to make sure the design meets this requirement.
How to determine how much material each design requires?The best method for this is to calculate the area of the design by using the sides. Here are the most common formulas:
Triangular design: Base x height/ 2Squared or rectangular design: side x sideCircular design: A = π r²Based on this, the best design is the one that adjusts to the material available.
Note: This question is incomplete because there is no information about the designs; due to this, I answered it based on general knowledge.
Learn more about area in: https://brainly.com/question/16151549