Factor this trinomial.
x2 + x - 2
A. (x-2)(x - 1)
B. (x-2)(x + 1)
C. (x + 2)(x - 1)
D. (x + 2)(x+1)
SA
Answers
Answer:
factoring this trinomial of x2 + x - 2? i got you covered. it's good that this is a multiple choice question because you can work backwards. the answer is C because all you have to do is first multiply the 2 x's to make x to the power of two. then you multiply the first x with -1 to make -x. then you make 2x by multiplying the 2 with x and -2 by multiplying 2 by -1. then you combine the common factors.
Step-by-step explanation:
(x + 2)(x - 1)
(x)(x) = x2
2 x -1 = -2
x2 - x + 2x -2
x2 + x - 2
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construct a rectangle (a and b of known length, d diagonal)
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Select TRUE or FALSE to indicate if the expression has been simplified correctly.
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Answer:
false its x^6/9
Step-by-step explanation:
(+5) × (+4) = 5 × 4 =
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Answer:
20
Step-by-step explanation:
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A picture has a height that is 2 times it’s width . It is to be enlarged to an area of 128 in 2
What will the dimensions of the enlargement be , if the equation to represent its area 2x 2 = 128
Answers
9514 1404 393
Answer:
8 in by 16 in
Step-by-step explanation:
In your equation, we presume that x represents the width. Solving for x, we have ...
2x² = 128 . . . . . . given equation
x² = 64 . . . . . . . . divide by 2
x = √64 = 8 . . . . square root
The enlargement will be 8 inches by 16 inches.
7. Which is equivalent to (-7) – (-8)?
A. (-7)+8
13. (+7) – (+8)
OC. (-7) + (-8)
D. 7 + (-8)
Answers
Answer:
A) (-7)+8
Step-by-step explanation:
because when you are subtracting 2 negatives, it turns into a positive.
Hope this helps!
write 770000 and round it to the nerest lakh
Answers
Answer:
8 lakhs = 8,00,000
Step-by-step explanation:
770000
=> 7,70,000
=> 7.7 lakhs
7.7 lakh rounded to the nearest lakh = 8 lakhs and it is Rounded Up
Hope it helps :)
In a litter of 8 puppies, suppose there are 2 brown females, 2 brown males, 1 spotted female, and 3 spotted males. If a puppy is randomly selected, what is the probability of selecting a female or a brown puppy?
Answers
Answer:
spotted male
Step-by-step explanation:
if you look at the numbers then you will see that this one has the biggest number
College Math! Pls help
Answers
Answer:
right: 11.15
left: 17.15
Step-by-step explanation:
right formula: [tex]\int _a^bf\left(x\right)dx\:\approx \Delta \:x\left(f\left(x_1\right)+f\left(x_2\right)+...+f\left(x_n\right)\right)[/tex]
left formula: [tex]\int _a^bf\left(x\right)dx\:\approx \Delta \:x\left(f\left(x_0\right)+f\left(x_1\right)+...+f\left(x_{n-1}\right)\right),[/tex]
[tex]\Delta \:x\:=\:\frac{b-a}{n}[/tex]
estimating : [tex]\int _1^7\left(\frac{7}{x}\right)dx[/tex] , with n = 6 (number of sub-intervals in Riemann sum)
right: 1 [tex]\left(f\left(x_1\right)+f\left(x_2\right)+f\left(x_3\right)+f\left(x_4\right)+f\left(x_5\right)+f\left(x_6\right)\right)[/tex] =[tex]1\cdot \left(\frac{7}{2}+\frac{7}{3}+\frac{7}{4}+\frac{7}{5}+\frac{7}{6}+1\right)[/tex] = 11.5
left: [tex]1\cdot \left(f\left(x_0\right)+f\left(x_1\right)+f\left(x_2\right)+f\left(x_3\right)+f\left(x_4\right)+f\left(x_5\right)\right)[/tex] =
[tex]1\cdot \left(7+\frac{7}{2}+\frac{7}{3}+\frac{7}{4}+\frac{7}{5}+\frac{7}{6}\right)[/tex] = 17.15
One-third of the candidates for a job were 25 years old or younger. Two-sevenths of the candidates were at least 50 years old. If 84 people applied for the job, how many were between 25 and 50?
Answers
Answer:
1/3 * 84 = 28 were under 25
2/7 * 84 = 24 were at least 50
28 + 24 = 52
84-52 = 32 were between 25 and 50
Step-by-step explanation:
WILL MARK BRAINLEST
PLS SHOW STEP BY STEP
Answers
Answer:
[tex]\frac{225}{30}[/tex] or [tex]7\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]\frac{25*9}{3*10} = \frac{225}{30}[/tex]
hope this helped
sorry if im too late lol
what's 2/5 - 9/10 as a fraction?
Answers
Answer:
- 1/2
Step-by-step explanation:
turn 2/5 to have the same denominator as 10
2 ( 2 ) = 4
5 ( 2 ) = 10
4/10 - 9/10
= -5/10
simplify
-5/10 = -1/2
hope this helps
5/9 times 8 GUYS PLS HELP ME
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Answer: 4.44
HOPE THIS HELPS
The graph shows the amount of money that Janice saves each week from her summer job. which equation best represents the graph
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Answer:
y = 100x + 200
Step-by-step explanation:
Could any kind person help me with this equation please
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M’ (-4, 7)
N’ (0, 5)
P’ (2, 0)
Q’ (-2, 1)
you basically change the x and y values by the value it says so you'd subtract 4 from x (the first number) and add 1 to y (the second number)
FIRST TO ANSWER GETS BRALYIST
good luck :-)
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Answer:
My answer is 20ft I'm not really sure but hope this helps
how often did superwireless have faster download times than com-com in these examples
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Answer:
most of the time .........
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
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What is the experimental probability that the coin will land on tails?
Group of answer choices
Answers
Answer:
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Step-by-step explanation:
Experimental probability is based on whats already being tested hope this helps!
I REALLY NEED HELP IN THIS
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Answer:
150°
Step-by-step explanation:
We know each angle in a equilateral triangle is 60° and that of a rectangle is 90° . So ,
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Which expression is equivalent to 4(9 + 7)?
36 + 7
13 + 11
36 + 28
13 + 7
Answers
Answer:
4(9+7)=36+28
Step-by-step explanation:
4(9+7)=64
36+7=43
13+11=24
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What is the probability of choosing a heart or a six from a deck of cards? Type your answer as a fraction.
Answers
Answer:
17/52
Step-by-step explanation:
a) 9/7
b) 9/-7
c) 7/9
d) -9/7
e) -9/-7
Answers
Answer:
a) 9/7
Step-by-step explanation:
[tex] \dfrac{x^2 + x - 20}{x^2 - x - 12} = [/tex]
[tex] = \dfrac{(x + 5)(x - 4)}{(x + 3)(x - 4)} [/tex]
[tex] = \dfrac{x + 5}{x + 3} [/tex]
x = 4
[tex] = \dfrac{4 + 5}{4 + 3} [/tex]
[tex] = \dfrac{9}{7} [/tex]
write 770000 and round it to the nerest lakh
Answers
Step-by-step explanation:
Seven lakh and seventy thousand.
This is your answer.
HELP WILL GIVE BRANLIEST
Answers
Answer:
the answer is b
Step-by-step explanation:
Answer:
Last Choice
Step-by-step explanation:
No time to explain I am 100 % sure its correct i had same problem
Standing by a pole, a boy 3 2 feet tall
casts a 6-foot shadow. The pole casts a
24-foot shadow. How tall is the pole?
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Answer:
PEPPA PIDD
Step-by-step explanation:
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will mark brainliest
These figures are congruent. What series of transformations moves
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Note: Rotations are clockwise. Reflections are over the x-or y-axis.
A. Reflection, reflection
B. Rotation, translation
C. Translation, reflection
D. Reflection, rotation
Answers
Answer:
wait nvm I did the wrong answer lemme re check
Ok sorry I reviewed it and i think its D i looked to fast and got confused sorry
Answer:
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Step-by-step explanation:
I took the test and this was the right answer!!
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Answer:
i say c sorry if im wrong
Step-by-step explanation:
So the answer is D
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Answer:
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if the ordered pairs graphed are all equivalent ratios, what ordered pair is missing?
A) (9,11)
B) (9,12)
C) (9,15)
D) (9,18)
Answers
Answer:
C) (9,15)
Step-by-step explanation:
1) For each dot you go right 3 up 5 to get to the next dot.
2) right 3 up 5 from (6, 10) would be (9,15)
Answer:
C) (9,15)Step-by-step explanation:
For x- coordinate we have:
3, 6, x, 12 ⇒ x = 9For y-coordinate we have:
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Correct choice is C
Mercedes can select from 2 types of apples and 3 types of pears. If she randomly selects 1 apple and 1 pear, how many possible choices does she have?
Answers
answer:
2,3
2,2
2,1
1,2
1,1
1,3
Those are the possible choices of selecting apples and pears.
If she randomly selects 1 apple and 1 pear then the possible choices are 6.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
Given that, Mercedes can select from 2 types of apples and 3 types of pears.
Mercedes randomly selects 1 apple and 1 pear.
We need to find the number of possible choices does she have.
(2,3)(2,2)(2,1),(1,2)(1,1)(1,3)
The probability of choosing 1 apple from 2 apples will be 1/2.
The probability of choosing 1 pear from 3 pears will be 1/3.
Now the probability of choosing a apple and a pear will be
1/2×1/3
1/6
Hence, If she randomly selects 1 apple and 1 pear then the possible choices are 6.
To learn more on probability click:
https://brainly.com/question/11234923
#SPJ2
There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter .to the nearest meter ,how many meters are in 241 inches ?
Answers
Answer:
6.12 meters
Step-by-step explanation: