Dr. Concha Gómez is an Italian, Cuban American who received a Ph. D. in Mathematics at the University of California at Berkeley. Dr. Gomez currently works at the University of
Wisconsin where she teaches her students how to find the solutions to a quadratic function. To start, she asks her students to find the factors for the quadratic expression,
7z^2 -38z + 15.
Select the factors of this quadratic expression.
Answer:
7z - 3 and z - 5
Step-by-step explanation:
The factors of the given quadratic expression is (z-5((7z-5).
The given quadratic expression is 7z² -38z + 15.
What is the quadratic expression?An expression of the form ax² + bx + c, where a ≠ 0 is called a quadratic expression. In other words, any expression with the variables of the highest exponent or the expression's degree as 2 is a quadratic expression.
The given quadratic expression 7z² -38z + 15 can be solved as follows:
Using spitting middle term
7z² -35z-3z + 15
= 7z(z-5)-3(x-5)
= (z-5((7z-5)
Therefore, the factors of the given quadratic expression is (z-5((7z-5).
To learn more about the quadratic expression visit:
https://brainly.com/question/14083225.
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I NEED HELP NOW PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! im gonna fail i swear help please now
what's 2+2 ?
Answer:
2+2 = 4
Step-by-step explanation:
ok so if u put 2 fingers up and you add 2 more, you get 4
bruv
Joe borrowed $8,000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in 4 years?
Answer:
2240
Step-by-step explanation:
7% of 8000 is 560, and 28% of 8000 is 2240. 560 x 4 is also 2240.
through (2, -4) and parallel to y= 9/2x+3
Answer:
y=[tex]\frac{9}{2\\}[/tex] x-13
Step-by-step explanation:
first, since it's parallel the slope has to be the same and the y-intercept has to be different.
you will have y=9/2x+b
find b, by using the points you are given so you will get
-4=(9/2) times (2)+b.
then when sloving you will get b=-13 and so the full equation will be
y=9/2x-13
Which is bigger 67% or 3/5 Please help me
Answer:
67%
Step-by-step explanation:
This is because 67% is basically 67/100 as a fraction and 3/5 is only 60%, all you need to know is the facts about fraction to percentage
.
Marshall gave the cashier $100 to pay for 4 new video games. The cashier gave him $4.08 in change. Each video game cost the same amount.
What is the cost in dollars and cents for each video game?
PLZZZZ HELP
Answer:
I would say it's $23.98
Step-by-step explanation:
If you do 100-4.08, you get 95.92 and since there's 4 video games, divide 95.92 by 4 and you get 23.98
Answer:
$23.98 or 2398 cents
Step-by-step explanation:
If the cashier gave $4.08 back, that means that he spent 100-4.08 on the 4 games.
$100 = 4 games + $4.08
4 games = $95.92
$95.92/4 = $23.98
Hope That Helps.
Robert and his younger sister are selling gift wrap to raise funds for the middle school band. Robert's sales are 2.5 times his sister's sales. Their total sales together can be represented by the equation x+2.5x=63 . Which of these statements are true? Choose ALL that are correct. A Robert's sales are represented by x when solving 3.5x=63 . B Robert's sister's sales total $18.00. C Robert's sales are represented by x when solving 2.6x=63 . D Robert's sales total $25.20. E Robert's sister's sales are represented by x when solving 3.5x=63 .
Answer:
B. Robert's sister's sales total $18.00.
E. Robert's sister's sales are represented by x when solving 3.5x = 63 .
Step-by-step explanation:
Let
Robert sister's sales = x
Robert sales = 2.5 * x
= 2.5x
Total sales = Robert sister's sales + Robert sales
63 = x + 2.5x
63 = 3.5x
Divide both sides by 3.5
x = 63 ÷ 3.5
= 18
x = $18.00
Robert sales = 2.5x
= 2.5(18)
= $45.00
A. Robert's sales are represented by x when solving 3.5x=63 .
No
B. Robert's sister's sales total $18.00.
Yes
C. Robert's sales are represented by x when solving 2.6x=63 .
No
D. Robert's sales total $25.20.
No
E. Robert's sister's sales are represented by x when solving 3.5x = 63 .
Yes
What are the slope and the y-intercept of the linear function that is represented by the equation 8x-2y = 57
5
The slope is 2, and the y-intercept is 4.
5
The slope is 2, and the y-intercept is 4.
5
The slope is 4, and the y-intercept is 2.
5
The slope is 4, and the y-intercept is 2.
Answer:
slope(m)=4 and
y-intercept(c)=-5/2
Step-by-step explanation:
here,8x-2y=5
reducing it into slop intercept form we get,
2y=8x-5
or,y=8/2x+(-5/2)
or,y=4x+(-5/2)
comparing it with y=mx+c we get,
slope(m)=4 and
y-intercept (c)=-5/2
Help ASAP I honestly really suck lol
Answer:
The answer is:
C. sin A = 48/50
Step-by-step explanation:
I already did this math work, and i got a 100 (A+) So i hope this help
-7+82*78-67^6+5-4/6=?
sufferrrrrrrrrr!
Answer:
-90458375775.7
Step-by-step explanation:
yes
Which is the better value, 2 books for $18 or 6 books for $45? Explain. {hint: make two tables; compare} (1 pt.) RP.1.3 b a.2 books for $18 because each book costs $9 and 6 books for $45 because each book costs $9.50 b.2 books for $18 because each book costs $8 and 6 books for $45 because each book costs $9.50 c.6 books for $45 because each book costs $7.50 and 2 books for $18 because each book costs $9 d.6 books for $45 because each book costs $9 and 2 books for $18 because each book costs $9.50 answer fast please
Answer:
I am a little confused by your question but if you were getting less it would be the first but more would be the second
Step-by-step explanation:
Answer:
c. 6 for 45 b/c each costs 7.50 and 2 for 18 b/c each book costs 9
Step-by-step explanation:
If you divide the amount of money by the number of books then you will find how much each book costs individually. If you wanna spend less money per book, then you 6 books for 45 is a better deal
What is the answer to this ??
Answer:
the first one
Step-by-step explanation:
they meet on (-3,-$4) so just plug the numbers in
Which of the following is closest to 1/2 + 1/3?
Answer:
c
Step-by-step explanation:
1/2= 0.5, 1/3= 0.33 ; 0.5+ 0.33= 0.83 or 0.8
1. Calculate the value of x in the following diagram. 53 - Y IN Q 5x 18
Answer:
x = 7
Step-by-step explanation:
QY = 5x
YZ = 18
QZ = 53
Thus:
QY + YZ = QZ (segment addition postulate)
5x + 18 = 53
5x = 53 - 18 (subtraction property of equality)
5x = 35
Divide both sides by 5
x = 7
Paul is locked out of his house. An 18-ft ladder is outside and an upstairs window is open. Paul read the safety warning on the ladder recommending it be placed six feet away from the wall. He placed the ladder according to the warning and it reached the base of the window. How high is the base of the window off the ground?
Answer:
17.0 ft
Step-by-step explanation:
Let h be the height of the base of the window from the ground, L be the length of the ladder = 18 ft and d be the distance of the ladder from the wall = 6 ft. Now, these three lengths form a right-angled triangle with the length of the ladder, L as the hypotenuse side.
So, using Pythagoras' theorem,
L² = h² + d²
So, h = √(L² - d²)
Substituting the values of L = 18 ft and d = 6 ft, we have
h = √((18 ft)² - (6 ft)²)
= √(324 ft² - 36 ft²)
= √288 ft²
= 16.97 ft
≅ 17.0 ft
3n - 5 =22 what is the value of n
Answer:
n = 9
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
3n - 5 = 22
Step 2: Solve for n
Add 5 to both sides: 3n = 27Divide 3 on both sides: n = 9Help please fast ahh
Answer:
the 2nd one
Step-by-step explanation:
-12 may be more in positive numbers but it is less in negative numbers
If f(x) = 4x+7 and g left parenthesis x right parenthesis space equals fraction numerator 1 over denominator 2 x end fraction w h a t space i s space t h e space v a l u e space o f space left parenthesis f over g right parenthesis left parenthesis 5 right parenthesis ?
Answer:
270
Step-by-step explanation:
its on my test this is the right answer
Is A triangle with side lengths 24,32, 42 a right angle?
Answer:
No its not a right angle.
HELP ME PLEASEEEE!!I beg y’all
Answer:
For Ms Ortiz: 50 = 50x+30y
For Mr Donahue 45=30x+30y
C =Substitution
Answer:
Step-by-step explanation:
45 divided by 30=$1.50
x amount of rulers multiplyed by 1.50
45-55=10$
50 pencils for 10 bucks
50 divided by 10 =5
5 5 5 5 5 5 5 5 5 5
five pencils for five dollers one doller for one pencil
sorry for the spelling errors this is all i can do the rest is a bit tricky
Please help super easy question, just want to confirm I have the right answer
Answer:
L to M is 90 degrees
Step-by-step explanation:
Hope this helps!
Answer:
180
Step-by-step explanation:
i straight line is equal to 180
15/3 = ?/1. what's the missing unit rate
Answer:
5
Step-by-step explanation:
15/3 is the same as 5 since 5*3 is 15
For the system, what is the y-value? -5x + 3y =10 -x + 6y = 4
Answer:
The answer i believe is y=-10/3 - 4x/3
Step-by-step explanation:
PLEASE ANSWER THISSS
Answer:
78.5 ft
Step-by-step explanation:
You had the right answer
Hope you got the clarification you needed! :)
Brainliest pls
4 3/7 + 6 1/5 = ?
Please EXPLAIN!!!
I'm too lazy and when I lazy I not so smart ;)
Answer:
Welp here is the answer to your question, 372/35 in exact form. in mixed number form it is 10 22/35
Russell caught 9 butterflies for his science project in the first week. He caught 13 butterflies in the second week. What is the percent increase in the number of butterflies Russell caught from the first week to the second week? Round your answer to the nearest whole number.
Answer:
44 Percent Increase
Step-by-step explanation:
Hope This Helps :)
Five less than two times a number is 11. Which equation could be used
to find the number?
Answer: 2b-5=11
Step-by-step explanation: 2b is equivalent to 2 times, and 5 less is the -5
John and his mother are trying to determine the dimensions of their new curtains. They know that the area of the fabric they have available is y^2-10y+25 square inches. Which of the following are possible dimensions of the curtains, in inches?
A.
(y – 1)(y – 10)
B.
(y – 25)(y – 1)
C.
(y – 5)(y – 5)
D.
(y + 5)(y – 5)
Answer:
the answer is C . (y-5)(y-5)
Step-by-step explanation:
i just did it in edge
Find the slope of two points (1,-5)(10,6)
Answer:
11/9
Step-by-step explanation:
Answer: 11/9
Step-by-step explanation:
The slope is found by the change in y over the change in x
(6-(-5))/(10-1)
Simplify:
11/9
PLEASE HELP, WILL VOTE BRAINLIEST
Write an explicit function to represent the following sequence.
3,9, 27, 81,...
Answer:
The equation would be if y is the numbers in the sequence (like 3, 9, 27) and x is the is the number in the order (like 3 is 1, 9 is 2, 81 is 4) the the equation would be y = 3^x.
Step-by-step explanation: