I need help please I’m struggling
Answer:
19%
Step-by-step explanation:
what is the difference of 4.042 and 3.155
Answer: 0.887
Step-by-step explanation:
Write the percent as a fraction and as a decimal.
5% tax
Answer:
The answer would be 0.05
Step-by-step explanation:
This is because it is PER Cent so 5% is 0.05 of 1
Answer:
1/20 and 0.05
Step-by-step explanation:
Use the Discriminant to determine if the quadratic equation has complex/no real solutions, one real solution, or two real solutions. Give the value of the a. 2x^2 – 3x - 10 = 0 b.x^2 - 6x + 9 = 0 c.g(x)=x^2-8x+20
Answer:
Step-by-step explanation:
discriminant = 3² – 4·2(-10) = 89
discriminant > 0 ∴ two real solutions
Children 4 years old or younger can ride the train for free. Write an inequality that expresses who can ride the train for free.
x<=4
x is less than or equal to four
children less than or equal to four can ride the train for free
descrease £250 by 15%
Answer:
£212.5
Step-by-step explanation:
15% of 250 = 37.5
250 - 37.5 = 212.5
Write the equation of the line in fully simplified slope-intercept form???
Answer:
[tex]y = - \frac{4}{5} x + 3[/tex]
Step-by-step explanation:
[tex]b = 3[/tex]
[tex] - 2 = 4a + 3[/tex]
[tex]a = - \frac{4}{5} [/tex]
A bag contains 3 blue marbles, 7 red marbles, and 5
yellow marbles. If Joe picks 1 marble from the bag at
random, what is the probability that it will be blue?
Answer:
3 out of 15 I believe is the answer
Step-by-step explanation:
there are 3 blue marbles so he already has a chance out of 3, then I believe you add them all together which is 15 :) hope this helps
Evaluate m2 + 12q if m= 5 and q =-3 plz
Answer:
-11
Step-by-step explanation:
m²+12q
= (5)² + 12(-3)
= 25 -36
= -11
Simplify $\sqrt{288}$.
Answer:
16.97056275
Step-by-step explanation:
PLEASE HELP M IN THE MIDDLE OF A TEST
A rock is thrown upward with a velocity of 12 meters per second from the top of a 25 meter high cliff, and it misses the cliff on the way back down. When will the rock be 3 meters from ground level? Round your answer to two decimal places.
Answer:
find t when
25 + 12t - 5t^2 = 3
using g=10 (easier than using 9.81)
Elena is designing a paint can with thickness ttt millimeters and height hhh centimeters. She calculates that the thickness of the can in milimeters must be at least 0.1, point, 1 times the height of the can in centimeters in order to withstand pressure. Due to cost constraints, the cost of material used, (0.2 + t+ 0.5h)cents, must be at most 12.2, point, 2 cents. Which system of inequalities best models the relationship between height and thickness?
Answer:
[tex]t \ge h[/tex] and [tex]t + 0.5h \le 12.0[/tex]
Step-by-step explanation:
Given
[tex]t= thickness[/tex]
[tex]h =height[/tex]
From the first statement, we have that:
[tex]t\ mm \ge 0.1 * h\ cm[/tex]
Convert mm to cm
[tex]t\ * 0.1*cm \ge 0.1 * h\ cm[/tex]
[tex]t\ *0.1 \ge 0.1 * h[/tex]
Divide both sides by 0.1
[tex]t \ge h[/tex]
From the second statement, we have that:
[tex]Cost \le 12.2[/tex]
Substitute 0.2 + t + 0.5h for Cost
[tex]0.2 + t + 0.5h \le 12.2[/tex]
Collect Like Terms:
[tex]t + 0.5h \le 12.2-0.2[/tex]
[tex]t + 0.5h \le 12.0[/tex]
So, the inequalities are:
[tex]t \ge h[/tex] and [tex]t + 0.5h \le 12.0[/tex]
Answer: it's a, the answer
Step-by-step explanation:
WILL GIVE BRAINLIEST GIVE EXPLANATION
Answer:
5z+30
Step-by-step explanation:
5(z+6)
^ multiply each term in the parentheses by 5
5z+5x6
then,
5z+5x6 (multiply the numbers)
the answer will be 5z+30
Consider a student loan of $22,500 at a fixed APR of 9% for 30 years.
a. Calculate the monthly payment.
b. Determine the total amount paid over the term of the loan
c. Of the total amount paid, what percentage is paid toward the principal and what percentage is paid for interest.
a. The monthly payment is 5
(Do not round until the final answer. Then round to the nearest cent as needed.)
b. The total payment over the term of the loan is s
(Round to the nearest cent as needed.)
c. Of the total payment over the term of the loan, % is paid toward the placipal and % is paid toward interest.
(Round to the nearest tenth as needed)
Answer:
Lo averiguaste, lo siento, amigos míos, por haberlos ayudado. pero la respuesta es 456 $.
Step-by-step explanation:
If 3+a=4-b and 4+b=7+a, what is 3-a?
Step-by-step explanation:
3+a=4-b
4+b=7+a
a=1-b
4+b=7+1-b
2b=4
b=2
a=1-2= -1
3-a= 3- -1= 3+1=4
3-a=4
Answer:
The answer is 4.
Step-by-step explanation:
First, you have to form simultaneous equations :
[tex]3 + a = 4 - b[/tex]
[tex]a + b = 1 - - - (1)[/tex]
[tex]4 + b = 7 + a[/tex]
[tex]a - b = - 3 - - - (2)[/tex]
Next, you have to solve it :
[tex](1) - (2)[/tex]
[tex]a + b - (a - b) = 1 - ( - 3)[/tex]
[tex]2b = 4[/tex]
[tex]b = 2[/tex]
[tex]sub \: \: b \: = 2 \: \: into \: \: (1)[/tex]
[tex]a + 2 = 1[/tex]
[tex]a = 1 - 2[/tex]
[tex]a = - 1[/tex]
Lastly, you have to substitute a-value into the expression :
[tex]3 - a = 3 - ( - 1) = 4[/tex]
In a computer class, a group of 4 girls shared a computer and printer to print their math projects. The total time to print the project was 1/2 hour. Each girl needed the same amount of time to print her project. What part of an hour did it take each of the 4 girls to print her project?
Answer:
30
Step-by-step explanation:
cause i said so
HELP!
What is the determinant of [-4 3, -7 6]?
a. -24
b.-3
c. 3
d.45
Answer:
-3
Step-by-step explanation:
Answer:
It's B
Step-by-step explanation:
Which number is an integer?
-3/4
1/5
2
4/2/3
Answer:
2
Step-by-step explanation:
If ABCD is an isosceles trapezoid what is the value of X?
Caitlyn reduced the size of a rectangle to a width of 3 in.
What is the new height if it was originally 10 in tall and 15
in wide
Answer:
h = 2
Step-by-step explanation:
you know the original rectangle [h = 10, w = 15]
1. The height of 15 inches turned to 3 inches by diving by 5
2. You have to do the same with the height too!
3. 10/5 = 2
The new height is 2 inches.
Help me write an explanation
Answer:
9.375 grams
Step-by-step explanation:
30 days = 3(10 days)
m = 75·0.5³ = 9.375 grams
To visit her grandmother, Melek takes a motorcycle 3.8, kilometers and a horse 3.32, point, 32 kilometers. In total, the journey takes 50.54 minutes
How many kilometers is Melek's journey in total?
Malik to visit her grandmother takes a motorcycle 3.8 kilometres at a horse 3.3 2.3 32 kilometres in total journey takes 50.5 4 minutes total kilometres which mlx journey is 7.725 kilometres
Answer:
The answer is 7.17 on khan
Step-by-step explanation:
Btw the first answer is wrong
if y varies jointly as the square of x and the cube of z and inversely as the square root of w. When x = 2, z = 2, and w = 64, then y = 12. Find y when x = 1, z = 3, and w = 4.
Answer:
40.5
Step-by-step explanation:
if y varies jointly as the square of x and the cube of z and inversely as the square root of w, this is expressed as;
y ∝ x²z³/√w
y = kx²z³/√w
If x = 2, z = 2, y = 12 and w = 64
Substitute;
12 = k (2)²(2)³/√64
12 = 32k/8
12 = 4k
k = 12/4
k = 3
To get y when x = 1, z = 3, and w = 4.
y = 3 (1)²(3)³/√4
y = (3*27)/2
y = 81/2
y = 40.5
Hence the value of y is 40.5
simply this expression cube root 16x^4 - cube root 2x
Answer:
2x [tex]\sqrt[3]{2x}[/tex] - [tex]\sqrt[3]{2x}[/tex]
Step-by-step explanation:
you can take the cubed root of [tex]\sqrt{16x^4}[/tex] and make it become the cubed root of ∛(2)³ · 2 · x³ · x which would equal 2x· ∛2x
I don't believe 2x· ∛2x - ∛2x can be simplified
please help, I'll give the correct answer brainliest.
find c and d. show your work.
9514 1404 393
Answer:
c = 6√2
d = 12
Step-by-step explanation:
The sides of any isosceles triangle (opposite the congruent angles) are congruent. Hence c = 6√2.
The hypotenuse of an isosceles right triangle is √2 times the side length, so ...
d = c√2 = (6√2)(√2) = 6·2
d = 12
__
If you don't believe that, you can always use the Pythagorean theorem to find d:
d^2 = (6√2)^2 +c^2
d^2 = 72 +72 . . . . . . . . . since c=6√2
d = √144
d = 12
What is the difference between the greatest and the smallest rational numbers
given below?
7/15,11/20,2/5,12/25
Answer:
The difference between the greatest and smallest rational number [tex]=\frac{3}{20}[/tex]
Step-by-step explanation:
Step(i):-
Given that the rational numbers
[tex]\frac{7}{15} , \frac{11}{20} ,\frac{2}{5} ,\frac{12}{25}[/tex]
we have to find that the difference between the greatest and the smallest rational numbers
solution:-
The greatest rational number = [tex]\frac{11}{20}[/tex]
Convert into decimal = 0.55
The smallest rational number = [tex]\frac{2}{5}[/tex]
Convert into decimal = 0.4
The difference between the greatest and smallest rational number
[tex]= \frac{11}{20} - \frac{2}{5}[/tex]
= [tex]\frac{11-8}{20}[/tex]
[tex]=\frac{3}{20}[/tex]
Final answer:-
The difference between the greatest and smallest rational number [tex]=\frac{3}{20}[/tex]
After lunch, you see the bumper cars and want to ride them. Here’s what the sign says:
Bumper Cars:
6 minutes: 8 tickets
8 minutes:12 tickets
Which one gives you more time for your money?
Find two numbers whose sum is 8 and whose product is 17
Answer:
Step-by-step explanation:
x+y = 8
y = 8-x
xy = 17
x(8-x) = 17
8x - x² = 17
x² - 8x + 17 = 0
Quadratic formula
x = [8 ± √(8² – 4·1·17)] / [2·1]
= [8 ± √(-4)] / 2
= [8 ± 2i] /2
= 4±i
x = 4+i
y = 4-i
A quadratic equation is written in the form of ax²+bx+c. The two numbers whose sum is 8 and whose product is 17 are (4+i) and (4-i).
What is a quadratic equation?A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.
Let the first number be 'a' and the second number be 'b'. Therefore, the sum of the two numbers is,
a+b=8
The product of the two numbers is,
ab=17
b=17/a
now, the equation can be written as,
a+b=8
a+(17/a)=8
a² + 17 = 8a
a²-8a+17=0
a = 4±i
Hence, the two numbers whose sum is 8 and whose product is 17 are (4+i) and (4-i).
Learn more about Quadratic Equations:
https://brainly.com/question/2263981
#SPJ2
3/4 divided by 1/5 PLEASE ANSWER
Answer:
3.75
Step-by-step explanation:
To make it a fraction form answer, you multiply the dividend numerator by the divisor denominator to make a new numerator.
Furthermore, you multiply the dividend denominator by the divisor numerator to make a new denominator:
To make the answer to 3/4 divided by 1/5 in decimal form, you simply divide the numerator by the denominator from the fraction answer above:
15/4 = 3.75
The answer is rounded to the nearest four decimal points if necessary.
15/4 is an improper fraction and should be written as 3 3/4.
Answer:
3.75
Step-by-step explanation:
What multiplication equation is represented by this picture? Explain.
Answer:
Step-by-step explanation:
Each circle represents : [tex]\frac{3}{5}[/tex] and 5 circles
5 * [tex]\frac{3}{5}[/tex]
Answer
Step-by-step explanation:
is Each circle represents : 3/2 and 5 circles