Does anyone know this problem?
1. What is the circumference of the circle below? Use 3.14 for pi and Round
your answer to the nearest tenth.
Answer:
22...................
Step-by-step explanation:
.................
Answer:
[tex]C = 34.5 \ cm[/tex]
Step-by-step explanation:
Circumference of the circle is given as
[tex]C=2\pi r[/tex]
Where r is radius of circle.
Diameter of given circle is 11 cm. We know radius is half of diameter.
[tex]r=\frac{d}{2} = \frac{11}{2}[/tex]
Circumference can be calculated as
[tex]C=2\pi (\frac{11}{2} )[/tex]
[tex]C = 34.5 \ cm[/tex]
-2 degree drop in temp every 1,000 ft airplane climbs in the sky. Temp on ground is 57 degrees. What is temperature when plane reaches 29,000 ft.
Answer:
(-1) degrees
Step-by-step explanation:
∵ Temperature drop with the increase in every 1000 ft of height = 2 degrees
∴ Temperature drop in every 1 ft = [tex]\frac{2}{1000}[/tex] degrees
∴ Temperature drop in 29000 ft = [tex]\frac{2\times 29000}{1000}[/tex]
= 58 degrees
Temperature on ground = 57 degrees
Temperature at 29000 feet = 57 - 58
= -1 degrees
Therefore, temperature at 29000 feet is -1 degrees.
In a school, ſ of the students study a language.
Of those students who study a language, study Spanish.
Find the ratio of students who study Spanish to students who do not study Spanish.
Answer:
F
Step-by-step explanation:
175% of a number is 49. Find the number?
Together a puppy and kitten weigh 15 ounces. Write an equation to represent the combined
weight of the puppy. p, and the kitten, k.
Answer:
The answer is 15 - p = k
Find the volume of the cylinder. Round your answer to the nearest tenth.
The volume of the cylinder is about ___ cubic feet.
Answer:
769.69 (769.7 Rounded)
Step-by-step explanation:
V=πr^2h=π·7^2·5≈769.6902
solve the inequality. use interval notion to state the solution (x+3)^2>2(x^2+7)
Answer:
we conclude that:
[tex]x^2+6x+9>2x^2+14\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:1<x<5\:\\ \:\mathrm{Interval\:Notation:}&\:\left(1,\:5\right)\end{bmatrix}[/tex]
Hence, (1, 5) is the solution in interval notation.
Please also check the attached graph.
Step-by-step explanation:
Given the inequality expression
[tex]\left(x+3\right)^2>\:2\left(x^2+7\right)[/tex]
as
(x + 3)² = x² + 6x + 9
2(x² + 7) = 2x² + 14
so
[tex]\:x^2+6x+9\:>\:2x^2+14[/tex]
rewriting in the standard form
[tex]-x^2+6x-5>0[/tex]
Factor -x² + 6x - 5: - (x - 1) (x - 5)
[tex]-\left(x-1\right)\left(x-5\right)>0[/tex]
Multiply both sides by -1 (reverse the inequality)
[tex]\left(-\left(x-1\right)\left(x-5\right)\right)\left(-1\right)<0\cdot \left(-1\right)[/tex]
Simplify
[tex]\left(x-1\right)\left(x-5\right)<0[/tex]
so
[tex]1<x<5[/tex]
Therefore, we conclude that:
[tex]x^2+6x+9>2x^2+14\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:1<x<5\:\\ \:\mathrm{Interval\:Notation:}&\:\left(1,\:5\right)\end{bmatrix}[/tex]
Hence, (1, 5) is the solution in interval notation.
Please also check the attached graph.
In ΔWXY, y = 7.8 cm, ∠W=26° and ∠X=76°. Find the length of w, to the nearest 10th of a centimeter.
Answer:
1
Step-by-step explanation:
The length of w is 7.863 cm.
What is Trigonometry?Trigonometry is the branch of mathematics that deals with particular angles' functions and how to use those functions in calculations. There are six popular trigonometric functions for an angle. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their respective names and acronyms (csc).
Given:
As, per the Sine law
a/ sin A = b / sin B
So, 7.8 / sin 78 = w / sin 76
7.8 / 0.9702 = w / 0.9781
8.0395 = w / 0.9781
w = 7.863 cm
Learn more about Sine law here:
https://brainly.com/question/17289163
#SPJ7
. All CD’s are on sale for 20% this week. The CD is $9.99. What is the original price of the CD?
Answer:
$12.49
Step-by-step explanation:
9.99 divided by .8
Answer:
It is 12.48
Step-by-step explanation:
9.99/.8
Can someone please help :)?
Answer:
Um I think you need to subtract 43 from 18, I may be wrong though.
Step-by-step explanation:
Answer:
j=61
Step-by-step explanation:
j-18= 43. j = 43+18 = 61
Which circle will have the largest circumference? D , r = 5 cm C , r = 6 cm B , r = 2 cm A , r = 3 cm
Answer:
C , r = 6 cm
Step-by-step explanation:
Finding the circumference is really easy. You just have to multiply the radius (r) by 2 and pi. Pi is 3.14 so 3.14*2*6=37 which is bigger than the other numbers. For a question like this where it gives you different radii, you can just pick the biggest number :) hope this helps!
Answer:
C , r = 6 cm should be the answer
Step-by-step explanation:
tips to remember 12 multiplication facts it wont stick in my head at all
School House rock videos help, they helped me lol
Help me please! This is very important to me so I ask that you may include how you did it in your response.
Answer: With the range between each, the times it ran first was 1, and the water was 0.5. Then, the times was 2, and the water level was 1. It's adding .5 to the level of water every minute.
Time Water Runs Level of Water
1 1.5
2 3.0
3 4.5
4 6.0
5 7.5
6 9.0
7 10.5
It's affected because, in the same time as the first table, the water is going up 3 times as much.
Step-by-step explanation:
In the sieve method 100 to 200, how many divisible numbers by 3 are multiplied by 3 lines?
a)17
b)15
c)16
d)14
Mr. Thompson bought a 5-gallon can of paint. After painting his room, 2/5 of the paint was left. How many gallons of paint did he use?
The temperature in Pullman, WA was 37°F in the afternoon. After the sun went down, the temperature dropped 7 degrees. Write an equation to represent the situation. What was the temperature after the sun went down?
Since the temperature dropped 7 degrees, we will subtract 7 degrees from the original temperature given.
Write an equation to represent the situation:
37°F - 7°F = x
What was the temperature after the sun went down:
37°F - 7°F = x
30°F = x
The temperature after the sun went down was 30°F.
Plz help i will give brainly to the person who actually gets it right
Answer:
90x^2+134x+48
Step-by-step explanation:
To get the area of a classroom you just multiply the length times the width
Answer:
90x^2+134x+48
Step-by-step explanation:
(10x+6)*(9x+8)
=90x^2+80x+54x+48
=90x^2+134x+48
Need the answer please answer my question please
Answer:
138 square units
Step-by-step explanation:
area of rectangle: 12 x 5 = 60
area of triangle: 1/2(6)(4) = 12
area of trapezoid: 1/2(6)(10 + 12) = 3(22) = 66
60 + 12 + 66 = 138
Suppose you plan to spend no more than $24 on meat for a cookout. Hamburger costs $3.00/lb and chicken wings cost $2.40/lb. Write and graph an equation to find three possible combinations of hamburger and chicken wings you can buy
Answer:
1. 8 hamburgers2. 10 chicken wings3. 4 hamburgers and 5 chicken wingsStep-by-step explanation:
Hamburger costs $3.00/lb Chicken wings cost $2.40/lbTotal = $24Required equation is:
3x + 2.4y = 24The graph is attached
Possible combinations are:
8 hamburgers10 chicken wings4 hamburgers and 5 chicken wings
The ratio of girls to boys in class is 3:4. Will the number of students in the class be a multiple of 7?
Yes
Or
Answer:
yes the number of students in the class will be multiple of 7
Answer:
Yes the number of students in the class be a multiple of 7. If im correct make me brainliest please.
Step-by-step explanation:
3 + 4 = 7
Please do question 4 and 5 only.
I will mark brainliest to well explained answers.
What is always true about similar figures?
A
Similar figures have corresponding angles that are congruent.
B
Similar figures are the same size.
C
Similar figures have corresponding sides that are congruent.
D
All of the above.
Answer:
The answer is: D all of the above.
Step-by-step explanation:
Answer:
A
Similar figures have corresponding angles that are congruent.
Step-by-step explanation:
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion. In other words, similar triangles are the same shape, but not necessarily the same size. The triangles are congruent if, in addition to this, their corresponding sides are of equal length.
PLease help me with this. :,)
Answer: the question is not popping up. i cant see it sry
a stock rose 3 1/4 points on tuesday. it fell 1 3/4 on wednesday. on thursday the stock rose 4 1/8 points. by friday the stock was worth 28 1/2 points. how much was the on monday?
please help
Answer:
big 3/2 is right
Step-by-step explanation:
It is so hard when you are VLA. I HATE it.
Answer:
The answer is b ur welcome
Jason has a lucky coin with a radius of 1 cm. What is the approximate area of Jason's lucky coin?
A. .75 cm
B. 3.14 cm
C. 12.56 cm
D. 6.28 cm
Answer:
B. 3.14
Step-by-step explanation:
Area of a circle = π r^2
Radius of coin = 1 cm
=π r^2
=π 1^2
=3.14
Which rational expression is undefined when x = 0?
Answer:
where are the options????
Step-by-step explanation:
if there isnt options how do we know what u mean>:
(5^1/2 x 5^-3/2)^-1/4
What is the axis of symmetry for the graph of y = -2x + 16x - 7?
O x= -8
O x = 8
O x=-4
O x = 4
I need the answer
Answer:
The axis of symmetry for the graph of y = -2x² + 16x - 7 will be:
x = 4
Hence, the last option i.e. x = 4 is the correct option.
Step-by-step explanation:
Given the equation
[tex]y\:=\:-2x^2\:+\:16x\:-\:7[/tex]
For a parabola in standard form y = ax² + bx + c
The axis of symmetry is the vertical line that goes through the vertex x = -b/2a
so
The axis of symmetry for y = ax² + bx + c is x = -b/2a
In our case,
[tex]a=-2,\:b=16[/tex]
Therefore,
x = -16/2(-2)
x = -16 /-4
x = 16/4
x = 4
Therefore, the axis of symmetry for the graph of y = -2x² + 16x - 7 will be:
x = 4
Hence, the last option i.e. x = 4 is the correct option.
