Answer:
x = 4
Step-by-step explanation:
16 × 7 = 112
2^4 = 16
so that is the answer
Write the natural numbers from 1 to 30. What fraction of them are prime numbers?
Answer:
The natural numbers from 1 to 30:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30.
The prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29.
Prime Numbers can only divide by themselves and 1.
Prime Numbers From 1 to 30: 2,3,5,7,11,13,17,19,23,29.... ( 10 )
b. Emily is the most popular name among the 1,994,317 females born in 2000. There were
25,952 Emilys born that year. What percentage of all female births is this?
Answer:
1.3%
Step-by-step explanation:
percent = part/total × 100%
percent = 25,952/1,994,317 × 100%
percent = 1.30129...%
Answer: 1.3%
Which of the numbers below is less than 48.975? Select all that apply. A) 48.9 B) 48.98 C) 48.963 D) 49
Answer:
A. 48.9'
C. 48.9663'
Question is in the image
=====================================================
Explanation:
The blue parent function has a positive coefficient of 1. The purple g(x) function is a reflection of f(x) over the x axis, so everything is now negative. The coefficient must be negative as well.
But the answer is simply not g(x) = -x^2 because plugging x = 3 does not lead to y = -6 as the point (3,-6) shows.
Let's say the coefficient is k for now. So we have y = kx^2
Plug in x = 3 and y = -6. Solve for k
y = kx^2
-6 = k(3)^2
-6 = k*9
9k = -6
k = -6/9
k = -2/3
So we update y = kx^2 into y = (-2/3)x^2
Meaning that g(x) = (-2/3)x^2 is the equation of the purple curve.
Plug x = 3 into g(x) to find that
g(x) = (-2/3)x^2
g(3) = (-2/3)(3)^2
g(3) = (-2/3)(9)
g(3) = -6
which is the output we want, so this confirms we have the correct coefficient.
Answer:
y=(-2/3)x^2
Step-by-step explanation:
Write the ratio 7.5 : 2.5 in the form n : 1
Answer:
3 : 1
Step-by-step explanation:
[tex] \huge7.5 : 2.5 = \frac{7.5}{2.5} = \frac{3}{1} = 3 : 1 [/tex]
The equivalent ratio to 7.5 : 2.5 is given by dividing both elements by 2.5, the ratio is: 3 : 1
How to rewrite the ratio?Remember that in a ratio A : B we can always multiply or divide both numbers by the same number, and the ratio does not change.
So, for the ratio:
7.5 : 2.5
To be in the form of:
n : 1
We can just divide both elements by 2.5, so we get:
7.5/2.5 = 3
2.5/2.5 = 1
Then we conclude that:
7.5 : 2.5 is equivalent to 3 : 1
If you want to learn more about ratios:
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answer it answer it answer it
Answer:
The correct option is;
C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2
Step-by-step explanation:
The area of the square frame is the area of the inner square subtracted from the area of the outer square
Which gives;
52.2² - 47.8² = 440
Therefore;
Option A. 52.2² - 47.8² is a correct way of finding the area of the square frame
Option B. 2 × ((52.2×2.2) + (47.8×2.2)) = 440, is a correct way of finding the area of the square frame
Option C. 52.2 × 4.4 × 2 + 47.8 × 4.4 × 2 = 880, is not a correct way of finding the area of the square frame
The error is the thickness is 2.2 not 4.4
Option D. 100×(52.2 - 47.8) = (52.2 + 47.8) × (52.2 - 47.8) = 52.2² - 47.8² = 440, is a correct way of finding the area of the square frame
The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?
Answer:
21 : 22
Step-by-step explanation:
Boys : Girls = 7 : 8
Let the number of boy = 7x
the number of girls = 8x
Number of boys after 20% increase = 120% of 7x
= 1.2 * 7x
= 8.4 x
Number of girls after 10% increase = 110% of 8x
= 1.1 * 8x
= 8.8x
After increase in number of boys & girls ,
= 8.4x : 8.8x
= 84 : 88 { reduce to simplest form by giving by 4th table}
= 21 : 22
2×( 1 1/2 – x) is the same as 2 1/3+ 1/15. x=?
Answer:
x = 3/10
Step-by-step explanation:
2 1/3 = 2 + 1/3 = 6/3 + 1/3 = 7/3
1 1/2 = 1 + 1/2 = 2/2 + 172 = 3/2
2(1 1/2 - x) = 7/3 + 1/15
2(3/2 - x) = 35/15 + 1/15
2*3/2 + 2*-x = 36/15
3 - 2x = 36/15
-2x = 36/15 - 3
-2x = 36/15 - 45/15
-2x = -9/15
x = (-9/15)/-2
x = -9 / (15*-2)
x = 9/30
x = 3/10
verify:
2(3/2 - 3/10) = 36/15
2*3/2 + 2*-3/10 = 36/15
3 - 6/10 = 36/15
30/10 - 6/10 = 36/15
24/10 = 36/15 = 72/30
The most commonly used descriptive statistics for a set of numerical scores are the mean and the ____.
Answer: Standard Deviation.
Step-by-step explanation:
DescriptionIn insights, the standard deviation is a proportion of the measure of variety or scattering of a lot of qualities. A low standard deviation demonstrates that the qualities will in general be near the mean of the set, while an elevated expectation deviation shows that the qualities are spread out over a more extensive territory.
What are the points
Answer:
There are 9 dots. So 9.
Step-by-step explanation:
Just take my word for it.
find the length of UX
Answer:
The answer is C. 76.53
The entire graph of the function g is shown in the figure below. Write the domain and range of g as intervals or unions of intervals.
Answer: D = {-5 ≤ x ≤ -2 or 1 ≤ x < 5}
Step-by-step explanation:
When we have a function f(x) = y, the domain is defined as all the possible values of x that the function maps into other values.
In our graph, we can see two curves.
The first one (the one at the left)
Has two black dots, one at x = -5, and other at x = -2
(black dots means that the value is included, white dots means that the value is not included)
So this first part of the domain is:
-5 ≤ x ≤ -2.
Now, the second part has a black dot in x = 1, and a white dot in x = 5, so we can write this part of the domain like:
1 ≤ x < 5
Then the domain of our function is:
D = {-5 ≤ x ≤ -2 or 1 ≤ x < 5}
marl borrowed $200 a 12% simple interest for one year. If he makes no payment that year, how much interest will he owe at the end of the year?
Answer:
He will owe $24 interest at the end of the year.
Step-by-step explanation:
Formula for finding Simple Interest:
S.I = PRINCIPAL × RATE × TIME/100
S.I = 200 × 12 × 1/100
S.I = $24
$24 is the Simple Interest.
A person is 5.5 feet tall. Do you know their height in inches?
Answer:
66
Step-by-step explanation:
The height of the person in inches by unit conversion will be 66 inches.
What is unit conversion?To convert any unit into another is called a unit conversion.
In order to convert units, we need to care about their dimensions their dimension should not be changed.
It is known that,
1 feet = 12 inches
Multiply both sides by 5.5
5.5 feet = 12 x 5.5 = 66 inches
Hence "The height of the person in inches by unit conversion will be 66 inches".
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3 − (2x − 5) < −4(x + 2)
Answer:
x < -8
Step-by-step explanation:
3 - (2x - 5) < -4(x + 2)
3 - 2x + 5 < -4*x -4*2
-2x + 8 < -4x - 8
-2x + 4x < -8 -8
2x < -16
x < -16/2
x < -8
Two positive consecutive numbers are represented by x and x+1. If four is added to the first
number and two is subtracted from the second number, the quotient of the new numbers is 11/16
Determine the numbers algebraically.
PLEASE HELP ASAP(50Points)
- thank you in advance :)
Step-by-step explanation:
new numbers are x+4 and x-1so, x+4/x-1=11/16
16x+64=11x-11
16x-11x=-11-64
5x=-75
x = -15
also, x+1 = -14
x =first number
x+1 = second number
(x) + 4 = x + 4 = 1 ^ new number [first number + 4]
(x + 1) -2 = x - 1 = 2 ^ new number [second number - 2]
[tex]\frac{x+4}{x-1}=\frac{11}{16}[/tex]
now, we resolve it:
[tex]\frac{16(x+4)-11(x-1)}{16(x-1)}=0[/tex]
[tex]\frac{16x+64-11x+11}{16x-16}=0[/tex]
[tex]\frac{5x+75}{16x-16}=0[/tex]
we eliminate the denominator and do c.e.: 16x - 16 ≠ 0; 16x ≠ 16; x ≠ 1
5x + 75 = 0
x = - 15
so x + 1 = - 14
But what you ask are two positive numbers! Are you sure that you write correctly the question? Thank you
A rectangle has an area of 24 square inches. If the side
lengths of the rectangle are integers, which of the
following could be the perimeter of this rectangle?
Answer:
Possible perimeters:
50 inches, 28 inches, 22 inches, 20 inches.
Step-by-step explanation:
Given that:
Area of triangle = 24 square inches
Side lengths of rectangle are integers.
To find:
Possible perimeter of this rectangle = ?
Solution:
Here, options are missing, so let us calculate all possibilities for the perimeter.
The formula for Area of a rectangle is given as:
[tex]A = Length \times Width[/tex]
Let us make integer factors of 24 first of all.
[tex]24 = 1 \times 24\\24 = 2 \times 12\\24 = 3 \times 8\\24 = 4 \times 6[/tex]
These are the four possibilities of length and breadth.
Let us calculate the possible perimeter for each case using the formula for perimeter:
[tex]Perimeter = 2\times (Length + Width)[/tex]
1st possible option:
[tex]Perimeter = 2\times (1+ 24) = 50\ inches[/tex]
2nd possible option:
[tex]Perimeter = 2\times (2+ 12) = 28\ inches[/tex]
3rd possible option:
[tex]Perimeter = 2\times (3+ 8) = 22\ inches[/tex]
4th possible option:
[tex]Perimeter = 2\times (4+ 6) = 20\ inches[/tex]
What is the value of k?
Answer:
k = 3Step-by-step explanation:
The vertex is (d, e)
for quadratic function: f(x) = ax² + bx + c we have:
d = -b/a and d = (x₁ + x₂)/2
a = 1, b = k, x₁ = -4, x₂=-2
so:
d = -b/a = -k/1 = -k and d = (x₁ + x₂)/2 = (-4-2)/2 = -3
-k = -3
k = 3
1. Which of the following statements is true about the numbers 4.5,-6,12,-1.1? * BRAINLIEST PRIZE!
-1.1 is a rational number, 4.5 and -6 are integers, and 12 is a whole number.
-1.1 and -6 are rational numbers, 12 is an integer, and 4.5 is a whole number.
4.5 and -1.1 are rational numbers, -6 is an integer, and 12 is a whole number.
12 is a rational number, -1.1 and -6 are integers, and 4.5 is a whole number.
Answer:
4.5 and -1.1 are rational numbers, -6 is an integer, and 12 is a whole number.
Step-by-step explanation:
Numbers:
4.5,-6,12,-1.1Let's see which option is correct:
-1.1 is a rational number, 4.5 and -6 are integers, and 12 is a whole number.
4.5 in not an integer, it is incorrect-1.1 and -6 are rational numbers, 12 is an integer, and 4.5 is a whole number.
4.5 is not a whole number, this is incorrect4.5 and -1.1 are rational numbers, -6 is an integer, and 12 is a whole number.
Correct12 is a rational number, -1.1 and -6 are integers, and 4.5 is a whole number.
-1.1 is not and integer, 4.5 is not a whole number, this is incorrect2) A straight path that has no end and no thickness is known as
Answer:
a line
Step-by-step explanation:
Is 2:4 and 42:84 equivalent?
Answer:
Yes.
Step-by-step explanation:
They are both divisible by 21.
Answer:
Yes
Step-by-step explanation:
They both equal one half
-2z + 3 + 7z= -12 A. z = -3 B. c = -c + 2 C. c + 2 = c -2 D. c - c = 2 Help me pleeeaasseee <3
Answer: Choice A) z = -3
====================================
Work Shown:
-2z + 3 + 7z= -12
5z+3 = -12
5z = -12-3 .... subtract 3 from both sides
5z = -15
z = -15/5 .... divide both sides by 5
z = -3
Answer:
A. z = -3
Step-by-step explanation:
B, C, and D have the wrong variable in the answer
-2z + 3 + 7z = -12
5z + 3 = -12
5z = -15
z = -3
how do I write 5(x + 6) as a verbal expression
Answer:
five times the value of 6 more than a number
Step-by-step explanation:
five times = 5 •
6 more = 6 +
a number = x
5(x + 6)
What is the value of 21 + 6² - (35 - 8) ×3? A. 90 B. 0 C. -24 D. -54
Answer:
C. -24
Step-by-step explanation:
Hello!
To solve this we have to follow the order of PEMDAS
Parenthesis, exponents, multiplication and division, addition and subtraction
[tex]21 + 6^{2} - (35 - 8) * 3[/tex]
Parenthesis first
[tex]21 + 6^{2} - (27) * 3[/tex]
Exponents next
21 + 36 - 27 * 3
Multiplication and division from left to right
21 + 36 - 81
Addition and subtraction from left to right
57 - 81 = -24
The answer is C.-24
Hope this helps!
Answer:
C. -24Step-by-step explanation:
[tex]21+6^2-\left(35-8\right)\times \:3\\\\\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}\\\\\mathrm{Calculate\:within\:parentheses}\:\left(35-8\right)\::\quad 27\\\\=21+6^2-27\times \:3\\\\\mathrm{Calculate\:exponents}\:6^2\::\quad 36\\\\=21+36-27\times \:3\\\\\mathrm{Multiply\:and\:divide\:\left(left\:to\:right\right)}\:27\times \:3\::\quad 81\\\\=21+36-81\\\\\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:21+36-81\::\quad -24\\\\=-24[/tex]
Finding area and perimeter
A square with sides of length 21m.
Which statement is a theorem? A) Three noncollinear points determine a plane. B) Through any two points there is exactly one line. C) A rectangle is a parallelogram with four right angles. D) If C lies on AB and is between A and B, then AC + CB = AB.
Answer:
D) If C lies on AB and is between A and B, then AC + CB = AB.
Step-by-step explanation:
Statements A, B and C are postulates while statement D is a theorem.
A postulate is a statement that is true but cannot be proven, but a theorem is a statement that can be proven.
The statement D is the betweenness theorem for points. It states that If C lies on AB and is between A and B, then AC + CB = AB.
This statement can be proven, so it is a theorem.
an online retailer charges $6.99 plus $0.55 per pound to ship electronics purchases. How many pounds is a dvd player for which a shipping charge is $11.94?
Answer:
The weight is 9 lbs
Step-by-step explanation:
flat fee + price per found * pounds = total charge
6.99 + .55 * p = 11.94
Subtract 6.99 from each side
6.99 + .55 * p - 6.99= 11.94-6.99
.55p =4.95
Divide each side by .55
.55p/.55 = 4.95/.55
p =9
The weight is 9 lbs
-5+9+(-5)+(-10)+(1) is equal to
Answer:
- 10
Step-by-step explanation:
Distribute the '+' into the '-' and simplify:
-5+9+(-5)+(-10)+(1) =
-5 + 9 - 5 - 10 + 1 =
-10
Answer:
[tex] \boxed{ \boxed{ \bold{ \purple{ - 10}}}}[/tex]Step-by-step explanation:
[tex] \sf{ - 5 + 9 + ( - 5) + ( - 10) + 1}[/tex]
When there is a ( + ) in front of an expression in parentheses, the expression remains in same.
⇒[tex] \sf{ - 5 + 9 -5 - 10 + 1}[/tex]
Calculate
⇒[tex] \sf{ 4 - 5 - 10 + 1}[/tex]
⇒[tex] \sf{ - 1 - 10 + 1}[/tex]
⇒[tex] \sf{ - 11 + 1}[/tex]
⇒[tex] \sf{ - 10}[/tex]
Hope I helped!
Best regards!!
What is the volume of a rectangular prism with a height of 7 units, a width of 5 units, and a length of 8 units?
A. 20 cubic units
B. 200 cubic units
C. 2.000 cubic units
D. none of the above
Answer:
The answer is 280
Step-by-step explanation:
Because, the formula of volume of rectangular prism is Volume = length•width• height
What is the solution of −83 = b4? A. b = –332 B. b = –87 C. b = –79 D. b = –20.75
Answer:
the answer is D
Step-by-step explanation:
refer to the picture given