One number is 5 greater than another. the product of the numbers is 150. find the numbers. one pair of numbers, both of which are positive, is nothing.
how do i solve this?
PLEASE HELP QUICK
HURRRY!!!!!
Factor completely: 5ab + 3ay + 5b + 3y (1 point)
(5b + 3y)(a + 1)
(5b - 3y)(a + 1)
(5b + 3y)(a - 1)
Prime
5. Factor completely: 4x3 + 28x2 + 7x + 49 (2 points)
(x - 7)(4x2 + 7)
(x - 7)(4x2 - 7)
(x + 7)(4x2 + 7)
(x + 7)(4x2 - 7)
6. Factor completely: 21x3 + 35x2 + 9x + 15 (2 points)
(3x - 5)(7x2 - 3)
(3x - 5)(7x2 + 3)
(3x + 5)(7x2 - 3)
(3x + 5)(7x2 + 3)
7. Factor completely: 10xy + 3y + 20ax + 6a (2 points)
(10x - 3)(y - 2a)
(10x - 3)(y + 2a)
(10x + 3)(y + 2a)
(10x + 3)(y - 2a)
Answer: The correct options are :
(4). (A) [tex](5b+3y)(a+1).[/tex]
(5). (C) [tex] (x+7)(4x^2+7).[/tex]
(6). (D) [tex] (3x+5)(7x^2+3).[/tex]
(7). (C) [tex] (10x+3)(y+2a).[/tex]
Step-by-step explanation: We are given to completely factor the following expressions :
Expression 4 :
The given expression is
[tex]E_1=5ab+3ay+5b+3y~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)[/tex]
The factorization of expression (i) is as follows :
[tex]E_1\\\\=5ab+3ay+5b+3y\\\\=a(5b+3y)+1(5b+3y)\\\\=(5b+3y)(a+1).[/tex]
So, option (A) is CORRECT.
Expression 5 :
The given expression is
[tex]E_2=4x^3+28x^2+7x+49~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)[/tex]
The factorization of expression (ii) is as follows :
[tex]E_2\\\\=4x^3+28x^2+7x+49\\\\=4x^2(x+7)+7(x+7)\\\\=(x+7)(4x^2+7).[/tex]
So, option (C) is CORRECT.
Expression 6 :
The given expression is
[tex]E_3=21x^3+35x^2+9x+15~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(iii)[/tex]
The factorization of expression (iii) is as follows :
[tex]E_3\\\\=21x^3+35x^2+9x+15\\\\=7x^2(3x+5)+3(3x+5)\\\\=(3x+5)(7x^2+3).[/tex]
So, option (D) is CORRECT.
Expression 7 :
The given expression is
[tex]E_4=10xy+3y+20ax+6a~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(iv)[/tex]
The factorization of expression (iv) is as follows :
[tex]E_4\\\\=10xy+3y+20ax+6a\\\\=y(10x+3)+2a(10x+3)\\\\=(10x+3)(y+2a).[/tex]
So, option (C) is CORRECT.
If AB < AC < CB in triangle ABC then which of the following is true?
Angle A < Angle B < Angle C
Angle C < Angle A < Angle B
Angle C < Angle B < Angle A
Angle A < Angle C < Angle B,
Given the equation 2x +4 = 4x -2, select the reasoning that correctly solves for x.
A.add 2, subtract 2x, then divide by 2
B.add 2, subtract 4x, then divide by -2
C.subtract 4, subtract 2x, then divide by -2
D.subtract 4, subtracts 4x, then divide by 2.,
A is the correct answer.
2x+4=4x-22x+4+2=4x-2+22x+6=4x2x-2x+6=4x-2x6/2=2x/23=xWhat is the sum of the polynomials (7x^3-4x^2)+(2x^3-4x^2)
Answer:
9x3 (B)
Step-by-step explanation:
i just took the unit test, it was correct
The sum of the polynomial function is 9x^3 - 8x^2
Sum of polynomial functionsPolynomial functions area function with a leading degree of 3 and above. Given the sum;
(7x^3-4x^2)+(2x^3-4x^2)
Expand
(7x^3-4x^2)+(2x^3-4x^2)
= 7x^3-4x^2 + 2x^3-4x^2
Collect like terms
7x^3 + 2x^3 - 4x^2 -4x^2
9x^3 - 8x^2
Hence the sum of the polynomial function is 9x^3 - 8x^2
Learn more on polynomial here: https://brainly.com/question/2833285
#SPJ6
.Wind is related to the movement of warm and cold air masses. Which kind of heat transfer does this represent? ANSWERS: A. radiation
B. conduction
C. convection
D. absorption
Answer:
Convection
Step-by-step explanation:
how would you do this problem
PLEASE HELP ME !!!!!!
CHOOSE 1 GRAPH ONLY
AND TRY TO EXPLAIN..
THERE ARE ONLY 4 GRAPHS
What is n -7_> 2. ( p.s. that’s a greater than equal to sign_>)
jackie set up a lemonade stand
Centered 7 meters above the ground, a Ferris wheel of radius 6 meters is rotating with angular speed
24 degrees per second.
a. Assuming that you begin at time t = 0 seconds at the lowest point on the wheel, find a formula
that describes the distance h (in meters) from you to the ground after t seconds of riding.
b. At what times are you 10 meters above the ground? Please explain clearly how you got your
solution.
a)[tex]\[ h(t) = 13 - 6\cos\left(\frac{2\pi}{15} t\right) \][/tex]
This formula gives the distance \( h \) from you to the ground after \( t \) seconds of riding.
b) you are 10 meters above the ground at [tex]\( t = \frac{5}{2} \)[/tex] seconds, which is \( 2.5 \) seconds after starting at the lowest point.
Let's break down this problem step by step:
a. To find a formula for the distance ( h ) (in meters) from you to the ground after ( t ) seconds of riding, we can use trigonometry and the properties of circular motion.
1. The Ferris wheel has a radius of 6 meters and is centered 7 meters above the ground. This means that at the lowest point, you are ( 7 + 6 = 13 ) meters above the ground, and at the highest point, you are ( 7 - 6 = 1 ) meter above the ground.
2. The angular speed of the Ferris wheel is given as 24 degrees per second. Since the Ferris wheel completes one full rotation (360 degrees) in[tex]\( \frac{360^\circ}{24^\circ/\text{sec}} = 15 \)[/tex] seconds, its angular velocity is[tex]\( \omega = \frac{2\pi}{15} \)[/tex]radians per second.
3. Let [tex]\( \theta \)[/tex] be the angle in radians that the Ferris wheel has rotated through at time ( t ) seconds. The height ( h ) above the ground can be expressed as:
[tex]\[ h = 13 - 6\cos(\theta) \][/tex]
To relate[tex]\( \theta \) to time \( t \)[/tex], we use the formula for angular displacement in circular motion:
[tex]\[ \theta = \omega t \][/tex]
Substitute [tex]\( \omega = \frac{2\pi}{15} \)[/tex] into the equation above to get:
[tex]\[ \theta = \frac{2\pi}{15} t \][/tex]
Now, substitute [tex]\( \theta \)[/tex]back into the equation for height \( h \):
[tex]\[ h(t) = 13 - 6\cos\left(\frac{2\pi}{15} t\right) \][/tex]
This formula gives the distance \( h \) from you to the ground after \( t \) seconds of riding.
b. To find the times when you are 10 meters above the ground, we set \( h(t) = 10 \) and solve for \( t \):
[tex]\[ 10 = 13 - 6\cos\left(\frac{2\pi}{15} t\right) \][/tex]
First, subtract 10 from both sides:
[tex]\[ -3 = -6\cos\left(\frac{2\pi}{15} t\right) \][/tex]
Divide both sides by -6:
[tex]\[ \frac{1}{2} = \cos\left(\frac{2\pi}{15} t\right) \][/tex]
Now, take the inverse cosine (arccos) of both sides:
[tex]\[ \frac{2\pi}{15} t = \cos^{-1}\left(\frac{1}{2}\right) \][/tex]
Solve for \( t \) by dividing both sides by [tex]\( \frac{2\pi}{15} \)[/tex]:
[tex]\[ t = \frac{15}{2\pi} \cos^{-1}\left(\frac{1}{2}\right) \][/tex]
Using the fact that [tex]\( \cos^{-1}\left(\frac{1}{2}\right) = \frac{\pi}{3} \)[/tex], substitute this value into the equation:
[tex]\[ t = \frac{15}{2\pi} \times \frac{\pi}{3} \]\[ t = \frac{5}{2} \][/tex]
So, you are 10 meters above the ground at [tex]\( t = \frac{5}{2} \)[/tex] seconds, which is \( 2.5 \) seconds after starting at the lowest point.
can someone check my answer please HELP!
Sonji paid $25.00 for two scarves, which were different prices. When she got home she could not find the receipt. She remembered that one scarf cost $3 more than the other. What was the price of the more expensive scarf?
i believe i got 14 for the most expensive scarf am i correct?
Quadrilateral ABCD is inscribed in circle O.
What is m∠C?
Enter your answer in the box.
____°
Please show how to solve this question. Thanks again.
To solve this question we will have to make use of one of the properties of the inscribed quadrilateral. That property is: "Opposite angles in any quadrilateral inscribed in a circle are supplements of each other".
Thus, as we can see from the diagram given, [tex] \angle B+\angle D=180^{\circ} [/tex]
[tex] (2x+3)+(4x+3)=180^{\circ} [/tex]
[tex] \therefore 6x+6=180^{\circ} [/tex]
[tex] 6x=174^{\circ} [/tex]
[tex] \therefore x=\frac{174^{\circ}}{6} =28^{\circ} [/tex]
Thus, now that we know the value of x, we can easily find the value of the [tex] \angle C [/tex] because we know that:
[tex] \angle C=2x+1 [/tex]
[tex] \therefore \angle C=2(29^{\circ})+1=59^{\circ} [/tex]
Thus, [tex] \boldsymbol{59^{\circ}} [/tex] is the correct answer.
MEDAL AND FAN!!
A bike was originally $240.00. The price was marked up 15%. What is the new price of the bike?,
Question 1.1. Suppose a normal distribution has a mean of 20 and a standard deviation of 4.
A value of 26 is how many standard deviations away from the mean?
(Points : 1)
1.5
0.5
0.5
1.5
Question 2.2. Suppose a normal distribution has a mean of 20 and a standard deviation of 4.
What is the z-score of a value that is 0.52 standard deviations less than the mean?
(Points : 1)
0.52
0.13
0.13
0.52,
Which are the roots of the quadratic function f(b) = b2 – 75? Check all that apply.Which are the roots of the quadratic function f(b) = b2 – 75?
Please answer this and thank you
If DF=78, DE=5x-9, and EF=2x+10, find EF.
Question
If DF = 78, DE = 5x-9, and EF = 2x+10, find EF.Answer
EF = 32
Derek's phone number, $336$ - $7624,$ has the property that the three-digit prefix, $336,$ equals the product of the last four digits, $7 \times 6 \times 2 \times 4.$ how many seven-digit phone numbers beginning with $336$ have this property?
To find the number of seven-digit phone numbers beginning with 336 that have the given property, we need to determine the number of possible combinations for the middle three digits. The number of different seven-digit phone numbers that satisfy the given property is 7.
Explanation:To find the number of seven-digit phone numbers beginning with 336 that have the given property, we need to determine the number of possible combinations for the middle three digits.
https://brainly.com/question/1455765
#SPJ12
Hey there! I’m having a bit of trouble with this one, I think I’ve been looking at this for too long. If you could give me an explanation, I would be appreciate it! Thanks in advance! This is a practice test.
no lo sé, pero como necesito puntos, ¿sí?
You've randomly surveyed some students in your science class to find the number of hours per week they study. what is the mean, based on your sample?
a.4.75 hours
b.5.05 hours
c.5.25 hours
d.5.45 hours
Answer:
D) 5.45 hours
Step-by-step explanation:
I got it correct on USATP.
Hope this helps!
From: Aug1e
PLS HELP!!!!! Medal!
Joey has a beach ball with a radius of 20 cm. What volume of air will it hold when fully inflated? (Round to nearest tenth.)
A) 83.8 cm^3
B) 251.4 cm^3
C) 1676.2 cm^3
D) 33,493.3 cm^3,
The angles opposite the congruent sides of an isosceles triangle are congruent find the value of x in the triangle TRIANGLE BOTTOM LEFT OF TRIANGLE 70 DEGREES VERY TOP OF TRIANGLE X!!!! PLS HELP WITHOUT COPY AND PASTING. SHOW ALL UR WORK
Final Answer:
In the isosceles triangle, the base angles are congruent, and the given angle at the top is [tex]\(70^\circ\)[/tex]. Using the sum of angles in a triangle, we find that the value of (x) is [tex]\(40^\circ\)[/tex]. Therefore, the final answer is [tex]\(x = 40^\circ\)[/tex].
Step-by-step explanation:
The base angles of the isosceles triangle as (A) and (B), and the vertex angle as (x). Since we know that the angles opposite the congruent sides are congruent, we have:
[ A = B ]
Now, let's consider the sum of angles in a triangle. The sum of all angles in a triangle is always [tex]\(180^\circ\)[/tex]. Therefore:
[tex]\[ A + B + x = 180^\circ \][/tex]
But since (A = B), we can rewrite this as:
[tex]\[ 2A + x = 180^\circ \][/tex]
Now, substitute (A) with [tex]\(70^\circ\)[/tex] (as given in the problem):
[tex]\[ 2(70^\circ) + x = 180^\circ \][/tex]
Simplify the equation:
[tex]\[ 140^\circ + x = 180^\circ \][/tex]
Now, isolate (x) by subtracting [tex]\(140^\circ\)[/tex] from both sides of the equation:
[tex]\[ x = 180^\circ - 140^\circ \][/tex]
[tex]\[ x = 40^\circ \][/tex]
So, the value of (x) in the given isosceles triangle is [tex]\(40^\circ\)[/tex].
Final answer:
The value of x in the isosceles triangle is 40 degrees, which is found by using the property that the angles opposite the congruent sides are congruent and the sum of the angles in any triangle is always 180 degrees.
Explanation:
To find the value of x in an isosceles triangle where one of the angles at the base is 70 degrees, we employ the property that the angles opposite the congruent sides of an isosceles triangle are also congruent. This means that the other angle at the base is also 70 degrees. Since the sum of the angles in any triangle is always 180 degrees, we can set up an equation to solve for x:
70° (angle at the left base) + 70° (angle at the right base) + x (angle at the top) = 180°
Adding the base angles together gives us:
70° + 70° = 140°
To find x, we simply subtract the sum of the base angles from 180 degrees:
180° - 140° = 40°
Therefore, the value of x, the angle at the top of the isosceles triangle, is 40 degrees.
What is the value of x?
4/5 x- 1/10= 3/10
A. 1/4
B. 8/25
C. 2/5
D.1/2
The infinite sequence 1, 6, 15, 28, 45, ... exhibits which pattern? multiply the term number by 2, subtract 1 from the result, multiply by the term number, and divide the result by 2. multiply the term number by 2, multiply the result by the term number, subtract 1, and divide the result by 2. multiply the term number by 2, subtract 1 from the result, multiply by 2 times the term number, and divide the result by 2. multiply the term number by 2, multiply the result by 2 times the term number, subtract 1, and divide the result by 2.
It takes Susan 3 hours to fix 2 broken cars and it takes Joseph 4 hours to fix 3 broken cars. If they work together how long will it take them to fix 17 broken cars?
Susan and Joseph can fix 17 broken cars together in 12 hours.
Explanation:To calculate the time it takes for Susan and Joseph to fix 17 broken cars together, we can calculate their individual rates of work.
Susan takes 3 hours to fix 2 cars, so her rate is 2/3 cars per hour.
Joseph takes 4 hours to fix 3 cars, so his rate is 3/4 cars per hour.
When they work together, their rates are additive. So their combined rate is (2/3 + 3/4) cars per hour. This is equal to (8/12 + 9/12) cars per hour, which simplifies to 17/12 cars per hour.
To find the time it takes to fix 17 cars, we can divide the number of cars by the combined rate: 17 cars / (17/12 cars per hour) = 12 hours.
Learn more about working together here:https://brainly.com/question/2364457
#SPJ12
given that an intercepted arc has length 6pi inches and a central angle is pi/3, find the radius
Simplify: 8x + 4 - 5
A square prism has a base with the length of 23 cm. What is the area, in square centimeters, of the base of the prism?