Answer:
2813 English books
Step-by-step explanation:
Hindi books are 42% of 4850
42 ÷ 100 = 0.42
0.42 × 4850 = 2037 Hindi books
number of English books = total number of Hindi and English books - number of hindi books
4850 - 2037 = 2813 English books
help help help help help help help
1- 1 1/2
2- 5.3
3- t=5
t=15
t=6
What is the quadratic equation whose roots are 2 and 6, and whose leading coefficient is 5
Answer:
5x^2-8x + 12
Step-by-step explanation:
the formula for finding roots of equation is
x^2- (sum of roots)x + products of roots =0
and we already have the roots of the equation
so we add them to give 8
and multiply to give 12
hence the quadratic equation that has those roots with leading coefficient is 5x^2-8x + 12=0
2) (Four students in a class do not have any siblings. This is 20% of the entire class.
How many students are in the class? HELPPP I HAVE A TEST TOMORROW THIS IS a test ) “solving percent with double number lines and mental math”
Answer:
16 students
Step-by-step explanation:
Knowing that 4 is 20% of a certain number is a great start. Think, how many times does 20 go into 100, 4. So then you multiply 4 with 4.
4 · 4 = 16
A bag contains 4 red marbles, 3 blue marbles and 6 green marbles. If two marbles are
drawn out of the bag, what is the probability, to the nearest 1000th, that both
marbles drawn will be red?
Answer:
~0.143
Step-by-step explanation:
So, in total there are 15 marbles, and only 6 of them are red. So the first draw will have a chance of being red. Since you didn't mention placing it back, the next draw will have a chance of being red. It's , because you just took a red one out of the bag (leaving 5 left) and the total was lessened by one. To get the answer, you'd multiply both numbers together.
6/15 x 5/14 = 1/7 or (roughly) 0.143
-6= -15r+9s. Solve for s
Answer:
(5r-2)/3 = s
Step-by-step explanation:
-6= -15r+9s
Add 15r to each side
-6+15r= -15r+15r+9s
15r-6 = 9s
Divide each side by 9
(15r-6)/9 = 9s/9
(5r-2)/3 = s
Any help would really be helpful :D
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. ✌️
which expression is equivalent to 12^-5 times 12^9?
a. 1/12^-45
b. 12^-45
c. 1/12^4
d. 1/12^-4
Answer:
D. 1/12^-4
Step-by-step explanation:
[tex]12^{-5}*12^{9}[/tex]
Since both exponents have the same base, we can add the exponents to get:
[tex]12^{-5+9}=12^{4}[/tex]
We can cross out A and B since they multiplied the two exponents, therefore both answers are wrong.
Now, let's try C and D.
C is wrong because it has a different base being raised to the same power.
D is correct. When you have a negative exponent, it is equivalent to the reciprocal of the base to the positive exponent.
The reciprocal of 1/12 is 12, and the positive of -4 is 4, therefore the answer is D.
Answer:
12^14
Step-by-step explanation:
It's the correct answer
make L the subject of formula
[tex]v = \frac{1}{2} lbh[/tex]
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
Answer:
0.5
Step-by-step explanation:
10/5=0.5, or one half.
someone please help with this question :)!
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
Answer: FOR NUMBER 2 (B)
Step-by-step explanation:
2. (fg)(x) = f (3x)
= (3x)2 + 1 = 3x^2 + 1 —> B
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
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:
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?
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
FILL IN THE BLANK TO MAKE THE NUMBER SENTENCE TRUE.
6 X 2/
= 6
help find area pls :(
Answer:
Total area = 26.13 ft²
Step-by-step explanation:
area of a triangle = 1/2 x base x height
From inspection, the base of the triangle = 3 x 2 = 6
and the height of the triangle = 4
⇒ area = 1/2 x 6 x 4 = 12 ft²
area of a semicircle = [tex]\frac{1}{2}\pi r^2[/tex]
⇒ area = [tex]\frac{1}{2} \times 3.14 \times 3^2[/tex]
⇒ area = 14.13 ft²
Total area = 12 + 14.13 = 26.13 ft²
Patrick managed to sell the 20th most bicycles last year of all the salespeople at the company.He also managed to sell the 20th least bicycles last year of all the salespeople at that company.How many salespeople were there at that company?Assume that no one sold the same number of bicycles than another
definitely missing a number so it's prolly something like
a/20=20
sorry if this doesn't help you didn't give us much to work on
write a numerical expression to represent the phrase the sum of 25 and the cube of 9; evalute
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
What are all the solutions of x2 + 3x4 07
Answer:
One could be just rewriting it in standard form
Step-by-step explanation:
3x^4+x^2+7
(^=to the power of)
Write an equation of the circle with center (-6, 2) and diameter 10.
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
B
a
A
b
Find the missing side c if Angle B -45 and side a=13
Round your answer to the nearest hundredth if necessary.
Write 9,030,800 in expanded form.
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
111111111111111111111111111111111111111111111
Answer:
40 in
Step-by-step explanation:
The Pythagorean theorem tells you the relationship between the sides of a right triangle.
b^2 +75^2 = 85^2
b^2 = 85^2 -75^2 = 1600
b = √1600 = 40
The length of the missing side is 40 inches.
What is the equation of this line?
y= 2x - 3
y= -1/2x- 3
y= -2x - 3
y= 1/2x - 3
Answer:
First option) y= 2x - 3
Step-by-step explanation:
[] The y-intercept, our b, is -3. This does not rule out any of the options as they all have -3.
[] The slope, when we have a graph with clear points, can be found with rise-over-run. We will pick a point and then count up and over to the next point.
-> Starting at the y-intercept, (0, 3), we count up 2 and to the right 1 for a slope of 2/1. This simplifies to 2.
[] Our equation is y = 2x - 3
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
6.
Write the equation of a line through points (5, 5) and (1, 0) in point-slope form.
Answer: [tex]y=\frac{5}{4} x-\frac{5}{4}[/tex]
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
//
May someone please help me with these equations I am struggling thank you very much
Answer: see attachment
Step-by-step explanation:
1. The sum of two numbers is 20.5. Their
difference is 6.5. Find the two numbers.
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!
what fraction of earths atmoshere is made up of nitrogen?
NEED HELP NOW!!!!
WILL GIVE 40 POINTS!!!!
Answer:
im guessing it is 78/100 because u circled 78
Step-by-step explanation:
because 21 + 1 + 78 = 100
so 78/100 is the fraction
Answer:
78/100 or 39/50 (simplified)
Step-by-step explanation:
First, let's convert 78% into a decimal.
78% = 0.78Now, we know that 0.78 is the same thing as 78/100. We can simplify 78/100 into 39/50, where 2 is the GCF
Thus, the answer is 78/100 or 39/50.
HELP PLSSSSSSSSSSSSSSSSSSSSSSSSSS
Answer:
Can't see answer it's blank
Step-by-step explanation:
Write the function represented by the table in f (x) = a • b ^x form.
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]