Answers
Answer:
Step-by-step explanation:
area formula
Using diagonals: A = (d1 × d2) : 2
we use the inverse formula
A * 2 : d1
225 * 2 : 15 =
30cm
--------------------
check
15 * 30 : 2 = 225
the answer is good
Related Questions
Evaluate piecewise functions
Answers
Answer:
-27
Step-by-step explanation:
We will use the top equation, which is [tex]x^{3}[/tex], because -3 (the x) is less than 0.
-> h(-3) means we are solving for when x is -3
[tex]x^{3}[/tex]
[tex](-3)^{3}[/tex]
[tex]-27[/tex]
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
AAAA!!!HELP QUICK!!!
Answers
Answer:
x= 58°
Step-by-step explanation:
if 32° and x is a 90° angle,
32+x = 90
x = 90 - 32
x = 58°
Question 10 please help and show step by step working out
Answers
Answer:
P and Q must have some relation f their integers but it doesn't give a value
Step-by-step explanation:
Answer:
The answer is
[tex]8 + \sqrt{48} [/tex]
Any help would really be helpful :D
Answers
Answer:
here,
4×35=n×10
140=10n
140/10=n
n=14
Hope this helps you!
Answer:
See below.
Step-by-step explanation:
4 n
_ = _
10 35
You cross multiply. You get 140=10n.
140=10n
_ _
10 10
n=14
You have your answer. ✌️
The function m is given in three equivalent forms. Which form most quickly reveals the zeros (or "roots") of the function? Choose 1 answer: (Choice A) m ( x ) = − 2 ( x − 6 ) 2 + 18 (Choice B) m ( x ) = − 2x^2 + 24x - 54 (Choice C) m ( x ) = − 2 ( x − 3 ) ( x − 9 ), Write one of the zeros
Answers
Answer:
Choice C
Step-by-step explanation:
Choice C already has X factored into a form which can readily be set equal to zero.
Eg. X - 3 = 0 and X - 9 = 0
To find the zeroes, simply solve for X
Answer:
this is the real correct answer
Step-by-step explanation:
someone please help with this question :)!
Answers
PLS DO 8.10 PLSS ITS DO TMR
Answers
8. 11/12 gallons of paint
10. 23/24 gallons of drink mix
Step-by-step explanation:
Note: When denominators are different, you must find a common denominator between the two fractions by multiplying both values
Ex: 1/3 and 1/4 = 4/12 and 3/12 common denominator is 12
8. Find the common denominator, 3/4 and 1/6, multiple the first denominator, 4, with three to get 12. Now multiply the numerator by the same number. 9/12 is our new fraction. Since the new denominator is 12, we have to get the other denominator to be 12 as well. Multiply 6 from 1/6 by 2 to get 12. Now do the same with the numerator. 2/12 is our new fraction, and all that's left is to add them together to find how much paint Damon has in total, which is 11/12 gallons.
10. Same concept as the above, 1/12 and 7/8 have a common denominator of 24, multiply 1 and 12 by two to get 2 and 24. Multiply 7 and 8 by 3 to get 21 and 24. 2/24 and 21/24 are our new fractions to add together. 23/24 is our answer.
Enjoy
HELPPPPP WILL GOVE BRAINLIEST
2. Which could be the scale factor of the following similar figures?
Answers
100 points+Brainliest for correct answer
An electron on an energy level has an energy of 16.32 x 10−19 J. It moves to another level by releasing 5.4 x 10−19 J of energy. Which of the following descriptions mostly likely explains what occurred?
The electron moved down to an energy level and has an energy of 10.92 x 10−19 J.
The electron moved down to an energy level and has an energy of 21.72 x 10−19 J.
The electron moved up to an energy level and has an energy of 10.92 x 10−19 J.
The electron moved up to an energy level and has an energy of 21.72 x 10−19 J.
Answers
Answer:
The electron moved down to an energy level and has an energy of
[tex]10.92 \times 10^{-19} \textsf{J}[/tex]
Step-by-step explanation:
[tex]\textsf{initial energy level of electron}= 16.32 \times 10^{-19} \textsf{J}[/tex]
[tex]\triangle E =\textsf{energy released}= 5.4 \times 10^{-19} \textsf{J}[/tex]
A positive energy change means that the electron absorbs energy, while a negative energy change implies a release of energy from the electron.
Therefore, when an electron absorbs energy, the electron moves up to higher energy levels, and when an electron releases energy, it moves to lower energy levels.
[tex]\triangle E=E_2-E_1[/tex]
[tex]\implies 5.4 \times 10^{-19} = 16.32 \times 10^{-19} -E_1[/tex]
[tex]\implies E_1= 16.32 \times 10^{-19} -5.4 \times 10^{-19}[/tex]
[tex]\implies E_1= 10.92 \times 10^{-19}[/tex]
Answer:
The electron moved down to an energy level and has an energy of
[tex]10.92 \times 10^{-19} \textsf{J}[/tex]
What’s the correct answer for the question?
Answers
Step-by-step explanation:
the dosage information bases only on age, on weight and the level of the fever. but we have no information about the fever.
so, we assume the fever is below 102.5° F.
the age is with 18 month in the valid range (0.5 to 2 years old) for the dosage.
so, all is left is to do the calculation about the weight.
24 pounds is based on the given information (1 kg ≈ 2.2 pounds) :
24/2.2 = 10.909090909... kg
this is rounded to full kg : 11 kg
the child should get 5 mg per kg, so this child has to get
5×11 = 55 mg
HURRYYYYYY
Which of the following is equivalent to the expression shown?(
-5) (3 (-4) (-2)
A.-120
B.-8 C.-2
D.120
Answers
Answer:
A
Step-by-step explanation:
(-5) * (-12) * (-2)
(60) * (-2)
-120
make L the subject of formula
[tex]v = \frac{1}{2} lbh[/tex]
Answers
Answer:
T^2=4π^2*L/G
L=(T^2*G)/4π^2
Step-by-step explanation:
hope this helps
Answer:
[tex]v = \frac{1}{2} lbh \\ \\ \\ l = v \div ( \frac{1}{2} bh) \\ \\ l = v \times \frac{2}{bh} \\ \\ l = \frac{2v}{bh} [/tex]
The first triangle is dilated to form the second triangle. What id the scale factor?
A. 50
B. 5
C. 2
D. 0.5
Answers
Answer:
0.5
Step-by-step explanation:
10/5=0.5, or one half.
DECORATING Taji is hanging a picture 5\8 of the distance from the floor to the ceiling. if the distance between the floor and the ceiling is 12 feet, how high should he hang the picture
Answers
Answer:
7.5 is the final answer
Step-by-step explanation:
If you don’t know the answer please don’t comment.
1.) Given f(x) = x3 + 1 and g(x) = −x + 1 what is the value of (fg)(−4)?
A.) 315
B.) -315
C.) 225
D.) -225
2.) Given f(x) = x2 + 1 and g(x) = 3x, find (fg)(x).
A.) (fg)(x) = x2 + 3x + 1
B.) (fg)(x) = 3x^2 + 1
C.) (fg)(x) = 3x^3 + 1
D.) (fg)(x) = 3x^3 + 3x
Answers
Answer: FOR NUMBER 2 (B)
Step-by-step explanation:
2. (fg)(x) = f (3x)
= (3x)2 + 1 = 3x^2 + 1 —> B
Suppose that the radius is expanding at a rate of 0.6 inches per second. How fast is the volume changing when the radius is 2.8 inches? Use at least 5 decimal places in your answer.
Answers
Answer:
59.11221 in^3/s
Step-by-step explanation:
Given dr/dt = 0.6 in/s
Find dV/dt when r = 2.8 in.
[tex]V=\frac{4\pi r^3}{3}\\[/tex]
so [tex]\frac{dV}{dr}=4\pi r^2\\[/tex]
[tex]\frac{dV}{dt}=\frac{dV}{dr}\cdot\frac{dr}{dt}=4\pi r^2\cdot\frac{dr}{dt}[/tex]
Use r = 2.8 in and dr/dt = 0.6 in/s
get
[tex]\frac{dV}{dt}=59.11221 in^3/s[/tex]
6.
Write the equation of a line through points (5, 5) and (1, 0) in point-slope form.
Answers
Answer: [tex]y=\frac{5}{4} x-\frac{5}{4}[/tex]
Write 9,030,800 in expanded form.
Answers
Answer:
9 million 30 thousand 800 hundred
Step-by-step explanation:
i think this is what u mean by expanded form
pls mark brainliest i need 1 more
Write an equation of the circle with center (-6, 2) and diameter 10.
Answers
Solution:
Formula: (x + 6)² + (y – 2)² = 5²h = x coordinatek = y-coordinateFirst, let's find the radius of the circle.
Diameter: 10 unitsRadius: 10/2 units = 5 unitsNow, let's create an equation:
(x – h)² + (y – k)² = r²Replace the given values of variables into the equation.
=> (x + 6)² + (y – 2)² = 5²Image attached~
Learn more: https://brainly.com/question/26508068
FILL IN THE BLANK TO MAKE THE NUMBER SENTENCE TRUE.
6 X 2/
= 6
Answers
NEED HELP QUICK!!
This circle is centered at the point (2,6), and the length of its radius is 7. What is the equation
of the circle?
Answers
Answer:
(x - 2)² + (y - 6)² = 49
Step-by-step explanation:
Equation of a circle formula: (x - a)² + (y - b)² = r²
where (a, b) is the center of the circle and r is the radius
Given, center = (2, 6) and radius = 7
Substitute this information in the equation of a circle formula.
⇒ Equation of the circle: (x - 2)² + (y - 6)² = 49
write a numerical expression to represent the phrase the sum of 25 and the cube of 9; evalute
Answers
Step-by-step explanation:
25 + 9³ = 25 + 81 = 106
remember, the cube of a number means to multiply it with itself 3 times (for a squared number that would be 2 times).
9³ = 9×9×9
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division
The value of the expression 25 + 9³ is 754.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
The sum of 25 and the cube of 9.
This can be written as,
25 + 9³
= 25 + 729
= 754
Thus,
The value of the expression 25 + 9³ is 754.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ2
help help help help help help help
Answers
1- 1 1/2
2- 5.3
3- t=5
t=15
t=6
Write the function represented by the table in f (x) = a • b ^x form.
Answers
Answer:
[tex]f(x)=32(1.3)^x[/tex]
Step-by-step explanation:
Here, the growth factor is 1.3 since 32(1.3)=41.6, 41.6(1.3)=54.08, and so on.
Therefore, the function that represents the table is [tex]f(x)=32(1.3)^x[/tex]
HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSS
Answers
Answer:
Can't see answer it's blank
Step-by-step explanation:
1. The sum of two numbers is 20.5. Their
difference is 6.5. Find the two numbers.
Answers
Answer:
13.5 and 7
Step-by-step explanation:
x + y = 20.5
× - y = 6.5
Hence,
x =20.5 - y
20.5 - 2y = 6.5
Hence,
2y = 14
and x = 20.5 - 20.5 - 7 = 13.5
Hope that helps :))
Answer:
The two numbers are 7 and 13.5
Step-by-step explanation:
Let the two numbers be x and y
Make 3 equations (for system of equation and substitution method)
Equation 1. x - y = 6.5
Equation 2. x = 6.5 + y
Equation 3. x + y = 20.5
Use the value of x in equation 2 to substitute x in equation 3.
6.5 + y + y = 20.5
Combine like terms
6.5 + 2y = 20.5
- 6.5 on both sides
2y = 14
Divide both sides by 2 to isolate y
y = 7
Substitute y in equation 3 to find x
x + 7 = 20.5
x = 13.5
Hope this helps :)
Have a great day!
5. Which of the following is not shown in the
figure at the right?
A. a line intersects parallel lines
B. there are intersecting lines
C. there are perpendicular lines
D. two lines are parallel
//
Answers
(I’m pretty sure but if I’m wrong I apologize in advance)
QUESTION 3
Screenshots
Answers
Answer:
2. P= 12
Step-by-step explanation:
Remember that if you have an exponent in your variable , what you have to do is to cancel it out by putting a square root in both sides :
√p ^2 = √144 the exponent will cancel out and then just square root 144
p = 12 that's your answer :)
Find the solution to the system of equations,
x + y + z = 18
y+ z = 11
z = 8
A. x = 7, y = 3, z = 8
B. x = 7, y = 11, z = 3
C. x = 18, y = 3, z = 8
D. x = 18, y = 11, z = 8
Answers
Since we are given z = 8, finding y is simple.
By replacing the z in y + z = 11, we can see that y = 3
After finding these two, x can be found
Answer:
D should be it
Step-by-step explanation:
The marks of 10 pupils in jhs three are 88,80,75,70,38,45,70,60,60,50. Find the a. Arithmetic mean mark
b. Modal mark
c. Third quartile
Answers
First add all the values together (88+80+75+70+38+45+70+60+60+50) and divide them by the number of values (10). Which would equal to 63.6
b) Modal Mark
This is the mode of the values (the value that appears most often in the set of data values) which would be 70 and 60
c) The Third Quartile
Not too sure how to explain so I included an attachment to work it out
Hope this is all correct or at least helps you out :)