Answer:
c = 10
Step-by-step explanation:
Given that H varies directly as c³ then the equation relating them is
H = kc³ ← k is the constant of variation
To find k use the condition when H = 40, c = 2 , then
40 = k × 2³ = 8k ( divide both sides by 8 )
5 = k
H = 5c³ ← equation of variation
When H = 5 000, then
5000 = 5c³ ( divide both sides by 5 )
1000 = c³ ( take the cube root of both sides )
[tex]\sqrt[3]{1000}[/tex] = c , so
c = 10
In the figure, 'O' is the centre of the circle, ZABO= 20°and ZACO= 30°, where
A, B, C are points on the circle. What is the value of x ?
120
Given:
Consider the below figure attached with this question.
[tex]\angle ABO=20^\circ[/tex]
[tex]\angle ACO=30^\circ[/tex]
To find:
The value of x.
Solution:
Draw a line segment OA as shown below.
In triangle ABO,
[tex]OA=OB[/tex] [Radii of same circle]
[tex]m\angle BAO=m\angle ABO=20^\circ[/tex] [Base angles of an isosceles triangle]
In triangle ACO,
[tex]OA=OC[/tex] [Radii of same circle]
[tex]m\angle CAO=m\angle ACO=30^\circ[/tex] [Base angles of an isosceles triangle]
Now,
[tex]m\angle BAC=m\angle BAO+m\angle CAO[/tex]
[tex]m\angle BAC=20^\circ+30^\circ[/tex]
[tex]m\angle BAC=50^\circ[/tex]
Central angle is always twice of angle subtended by two points on the circle.
[tex]m\angle BOC=2\times m\angle BAC[/tex]
[tex]x=2\times (50^\circ)[/tex]
[tex]x=100^\circ[/tex]
Therefore, the value of x is 100°.
What is the LEAST COMMON MULTIPLE of 3 and 5
Answer:
15
Step-by-step explanation:
brainliest plzzz
X= what???????
4
9
16
Answer:
X=16
cos∅ = opposite/hypotenuse
Cos60 = 8/x
8/cos60 = x
x = 16
hope this helps!
18 What is the equation of the line that is perpendicular to y = -x – 10 and contains point (-12, 1)? A y = X - 8 B y = - 15 C y = -x - 8 D y = 3*+ 17
Answer:
The equation of the line that is perpendicular to y = -x – 10 and contains point (-12, 1)
[tex]y=x+13[/tex]
Please note there is something wrong with the values given question. This is correct answer.
Step-by-step explanation:
Slope of line y = -x – 10 is m1=-1
Since slope of perpendicular lines are negative reciprocal of each other
Slope of other line is m2=1
Equation of line contains point (-12, 1) and having slope m2=1 is
[tex]y-y_1=m(x-x_1)[/tex]
[tex]y-1 = 1(x+12)[/tex]
[tex]y =x+12+1 \\y = x + 13[/tex]
(GIVING BRAINLIEST!!!)
What is the volume of the rectangular prism?
A) 96 in3
B) 98 in3
C) 106 in3
D) 116 in3
Write the phrase as an expression.
a number t cubed
An expression is
Answer:
t to the 2 power
Step-by-step explanation:
The expression for a number t cubed is t³.
What is Expression?A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation. Let's examine the writing of expressions. The other number is x, and a number is 6 greater than half of it. In a mathematical expression, this proposition is denoted by the expression x/2 + 6.
As an illustration, the phrase x + y is one where x and y are terms with an addition operator in between.
Given statement:
a number t cubed
Here the number be t.
So, the number t is cubed which can be written as
= t³
Hence, the expression is t³.
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Find the measure of the largest angle in the triangle shown . PLS HELP
Answer:
72°
Step-by-step explanation:
So the three angles of a triangle always add up to 180°. This means that
[tex]15x + 21x + 24x = 180[/tex]
This becomes:
[tex]60x = 180[/tex]
And solves as:
[tex]x = 3[/tex]
The largest angle has to be the one marked with 24x because it has the largest coefficient and x is a constant.
[tex]24x = 24(3) = 72[/tex]
The measure of the largest angle in the triangle is 72°.
72 degrees is the biggest angle in the given triangle.
What are the properties of the triangle?The properties of the triangle are: The sum of all the angles of a triangle (of all types) is equal to 180°. The sum of the length of the two sides of a triangle is greater than the length of the third side. In the same way, the difference between the two sides of a triangle is less than the length of the third side.
Given that the three angles of the triangle are 24x, 21x, and 15x
Since the sum of all the angles of the triangle is always 180 degrees
Thus,
24x +21x + 15x = 180
60x = 180
x = 3
Thus, the biggest angle would be 24x
biggest angle of triangle = 24 * 3 = 72
Therefore, the biggest angle of the given triangle is 72 degrees
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PLS ANSWER THISHEHDNDJDJ
9514 1404 393
Answer:
1/12
Step-by-step explanation:
The slope of a ramp (or anything else) is the ratio of its "rise" to its "run."
The rise is the vertical change. Here, that is shown as 3 m.
The run is the horizontal change. Here, that is shown as 36 m.
Then the slope is ...
[tex]\text{slope }=\dfrac{\text{rise}}{\text{run}}=\dfrac{3\text{ m}}{36\text{ m}}=\boxed{\dfrac{1}{12}}[/tex]
__
Additional comment
If this were a line on a graph, the slope would be calculated the same way. When the rise is positive to the right, the slope is positive. On a graph, if the rise is negative as you go to the right, the slope is negative.
The table shows four numbers.
Negative 34
Negative 0.4
0.4
3.4
Which number is an integer?
Negative 34
Negative 0.4
0.4
3 and one-fourth
Answer:
-34
Step-by-step explanation:
Answer:
A. -34
Step-by-step explanation:
A decorative fence surrounds a rectangular flower garden that is 2 yards long and 3 yards wide. The area of the garden is increased by 20 % . If the width remains the same, what is the new length of the garden?
Answer:
30
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Step-by-step explanation:gfdgdfg
The area of the garden is increased by 20 % . If the width remains the same, then the new length of the garden is 2.4 yards.
What is Area of Rectangle?The area of Rectangle is length times of width.
Given that A decorative fence surrounds a rectangular flower garden that is 2 yards long and 3 yards wide
Area = Length × Width
Area=6 yards.
The area of the garden is increased by 20 % .
20/100=0.2
the area would equal 6 (l x w) and 6 increased by 20% equals 7.2.
As the width remains same
so we use 7.2/3 to find the new length
7.2/3=2.4 yards.
Hence, 2.4 yards is the new length of the garden.
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Plzzzzzzzzzzzzzzzz help meeeeeeeeeeeeeeeeeeeeee if u do ill give u a dollar
Abby bought 3 sweaters that each cost the same amount and 1 skirt that cost $15. The items she bought cost a total of $90 before tax was added. Determine which equation could be used to find, x, the cost of each sweater.
A 3x - 15 = 90
B 3x + 15 = 90
C 15 - 3x = 90
D 15x + 3 = 90
Answer:
B
x is the price of the sweater so 3x and add $15 for the skirt which would add up to $90
Answer:
3x + 15 = 90
Step-by-step explanation:
hope this helps!
if a comet become visible every 6 years how many times will it be visible in a person's lifetime
Answer:
13
Step-by-step explanation:
Assuming the average human lifespan is 79 years then youll see a comet about 13 times in your life
i just need y intercept and equation
Answer:
Slope = 4y-intercept = -8Step-by-step explanation:
The slope-intercept form of the line equation
[tex]y = mx+b[/tex]
where
m is the slope b is the y-interceptGiven the table
x y
2 0
7 20
Determining the slope between (2, 0) and (7, 20)
(x₁, y₁) = (2, 0)
(x₂, y₂) = (7, 20)
Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [20 - 0] / [7 - 2]
= 20 / 5
= 4
Thus, the slope of the line = m = 4
now substituting the point (2, 0) and the slope m = 4 in the slope-intercept form of a line equation to determine the y-intercept b.
[tex]y = mx+b[/tex]
0 = 4(2) + b
b + 8 = 0
subtract 8 from both sides
b + 8 - 8 = 0 - 8
b = -8
Thus, the y-intercept = -8
Summary:
Slope = 4y-intercept = -8Marshall is going to make an apple pie. He buys x pounds of apples and a pie crust that cost 4.50. The total cost in dollars y can be found using the equation below
Answer:
7.00
Step-by-step explanation:
First, you take 2.5x + 4.5 wich gives you 7.00 or 7.
What is the greatest common factor of 15 and 48?
Answer:
3
Step-by-step explanation:
48= 1, 2, 3, 4, 6, 8 ,12, 16, 24, 48.
15= 1, 3, 5, 15, 30, 45 and so on but only 3 can go into 48 and 15 and it is the greatest since there are no other common greater numbers between them.
the lines p and q intersect at point 0 what is the value of x?
Step-by-step explanation:
since they're Head opposite angles.
[tex](3x - 3) = (2x + 13) \\ 3x - 2x = 13 + 3 \\ x = 16[/tex]
HELPPPPP!!!PLZZZZZZ TYY
Answer:
y=[tex]\frac{2}{3}[/tex] x+4
Step-by-step explanation:
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.
can some plls help me
What type of triangle is ABC?
Give reasons for your answer.
I know it's isosceles but I don't know the reasons...
So I'm asking for help.
Thanks!
Answer:
angle A and C are both Equal and sides BC and BA of the triangle are congruent
Step-by-step explanation:
John borrowed $20,000 from Beth. He pays $500 per month in interest. What is the percentage interest rate?
Answer: 2.5%
Step-by-step explanation:
From the question, we are informed that John borrowed $20,000 from Beth and that he pays $500 per month in interest.
The percentage interest rate would be calculated thus:
= Amount paid as interest / Amount borrowed × 100
= 500/20000 × 100
= 2.5%
Anyone know the answer to this?
pls i need help i’ll give brainliest
Answer:
Try c
Step-by-step explanation:
The measure of an angle is 32.9°. What is the measure of its complementary angle?
Answer: 57.1
Step-by-step explanation: To be complementary the angles have to add up to make a sum of 90.
90 - 32.9 = 57.1
The angles are 32.9 and 57.1.
pls help me I don't understand this :c
Answer:
B
Step-by-step explanation:
subtracting from x means you move to the right the amount you subtracted. Since you're already one the the right, moving five more puts you at six.
HELP PLEASE I NEED IT FAST-
Answer:
2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
The area of the triangle in the rectangle is 6 x 16, since the triangle takes about half of the rectangle, its supposed to be 1/2 (16x6)
Emily is making a scrapbook.
She uses 13 stickers to decorate each page.
In all, Emily uses 156 stickers.
How many pages did she decorate?
In order for Emily to use 156 stickers, she would've had to decorate 12 pages. 13 × 12 = 156. Therefore, your answer would be 12 pages.
For homework plss help
Answer:
B, C, D and E are correct options
Step-by-step explanation:
Here, we want to get the correct options;
a. We simply divide the next term by the previous term so that we get the common ratio
That would be 16/-8 = -32/16 = -2
As we can see, the common ratio is -2 which means that the option cannot be correct
b. The 5th term is mathematically;
ar^4 = -8 * (-2)^4 = -8 * 16 = -128
This is correct
c. The 7th term is
ar^6 = -8 * (-2)^6 = -512
5th term is ar^4 = -8 * (-2)^4 = -128
So -512/-128 = 4
As we can see, this option is correct
d. 8th term is 1024
8th term is ar^7
= -8 * (-2)^7 = 1024 which is correct
e. 10th term is ar^9 = -8 * (-2)^9 = 4096
9th term is ar^8 = -8 * (-2)^8 = -2048
This is correct
An ant weighs 5 grams. How many milligrams does an ant weigh?
A 5 Milligrams
B 500 Milligrams
C 5,000 Milligrams
D 0.005 Milligrams
Simplify the expression
4(1+5p)
Answer:
4+20p
Step-by-step explanation:
4x1 and 4x5p= 4+20p :)