______________________________
a.) [tex]\bold{(2x-1) (x^2+4x+3)= 2x^3+7x^2+2x-3}[/tex]:
Use the distributive property to multiply [tex]2x-1[/tex] by [tex]x^2+4x+3[/tex] and combine like terms:
[tex]=2x^3+7x^2+2x-3[/tex]
- So this is True.
b.) [tex]\bold{(4x^2-3x+6)+(5x^2-8)=9x^2-3x-2}[/tex]:Combine like terms and subtract 8 from 6 to get −2:
[tex]=9x^2-3x-2[/tex]
- So this is True.
c.) [tex]\bold{(8x-4x^2)+(2x^2-5x)=-2x^4+3x}[/tex]:Combine like terms:
[tex]=3x-2x^2[/tex]
- So this is False.
d.) [tex]\bold{(4x^2+4x-5)-(6x^2-5x-3)=-2x^2-x-8}[/tex]:Combine like terms and add -5 and 3 to get -2:
[tex]=-2x^2+9x-2[/tex]
- So this is False.
e.) [tex]\bold{(3x^3-5+2x)-(5x-6+x^3)=2x^3-3x+1}[/tex]:Combine like terms and add -5 and 6 to get 1:
[tex]=2x^3-3x+1[/tex]
- So this is True.
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29-30. URGENT! WILL GIVE BRAINLIEST! I've reposted this many times and no one answered, please help. I will mark you Brainliest if you answer both and leave an explanation, THANK YOU!
Answer:
angle B = 90
Step-by-step explanation:
BC is a straight line which equals to 180 and C is 90 so you would take 180 minus 90 and would get 90
factor 3x^2 + 10x +8
Step-by-step explanation:
3x²+10x+8 = 3x²+6x+4x+8
= 3x(x+2)+4(x+2)
= (3x+4)(x+2)
Someone please help me!
Answer:
No, triangle P'Q'R' is not a 180° rotation about the origin of triangle PQR.
I got "coordinates" for the first drop down menu and I believe "are not" is the 2nd drop down.
Step-by-step explanation:
If you turn your device 180° (Basically upside down), and take a look at triangle PQR, it will not be in the place of where triangle P'Q'R' is when your device is not rotated.
2) Solve for x in the following equation: 9x + 17 - 2x -2 = 50 *
Your answer
Answer:
5
Step-by-step explanation:
7x plus 15 is 50
7x=35
can i pls have brainliest
Answer:
x = 5
Step-by-step explanation:
9x + 17 - 2x - 2 = 50
9x - 2x - 2 = 33
9x - 2x = 35
7x = 35
x = 5
HURRYYYYYY!!!!!
Which expression is equivalent to 4(X+ 2)
O 6X
O 4()+4(2)
O 4(x)+4
8X
Jax has a weekly math test. His scores on the last 5 tests are 78,92,86,94,95. What score does he need to have an average of 90
Answer:
x = 95
Step-by-step explanation:
Given that,
Jax scores on the last 5 tests are 78,92,86,94,95.
We need to find the score he need to have an average of 90.
The formula for average of few number is given by :
Average = sum of observations/total no of observation
Let he score x in test 6. So,
[tex]90=\dfrac{78+92+86+94+95+x}{6}\\\\90=\dfrac{445+x}{6}\\\\540=445+x\\\\x=95[/tex]
So, he must score 95 in the next test so that its average is 90.
WHAT ARE THESESSS ALSO EXPLAIN HOW YOU GOT IT DUE SOON
Answer:
down below
Step-by-step explanation:
6.No : 35/70 = 1/2 and 7/35 is 1/5
7. yes: 1.7 /6 x 7/7 = 11.9/42
8.yes: 72/9 .= 8 . 96/12 = 8
Amir has $100 and is saving $5 per week to buy a new DVD player. Pete has $80 and is saving $7 per week to buy the same DVD player. Which system of equations can be used to find w, the number of weeks it would take for them to have m, the money needed to buy the DVD player
Answer: m= 100+5w
m= 80+7w
Step-by-step explanation:
Let w = number of weeks , m = Money required to buy DVD.
Total money = (Initial saving) + (Money saved per week) x (Number of weeks)
For Amir,
initial saving = $100 , Money saved per week = $5
So, m= 100+5w
For Pete,
initial saving = $80 , Money saved per week = $7
So, m= 80+7w
So, the required system of equations to find m and w:
m= 100+5w
m= 80+7w
Which graph represents y= 3^ x squared?
Answer:
see attachment
If you type your equation into desmos it helps a lot faster.
Explain or show how you could find 5÷13
Answer:
bus stop division really hard to show on here.
13/5
13 does not go into 5 so put a decimal point after the 5
13/5.000 carry the 5 over to the zero
13 goes into 50 3 times with 11 left over. carry the 11 over to the next zero. 13 goes into 110 8 times with 6 left over. carry over to the next zero. keep adding zeros and carrying over until the 13 goes into a number equally.
the answer is 0.38461538
If 5 model airplanes cost $10, what is the unit price of the model airplanes?The unit price is $ per model airplanes.
Answer:
2 is the answer to you question
Step-by-step explanation:
I am always hungry and will die if not fed, but whatever I touch will soon turn red. What am I?
Find the value of each expression. 42+6÷2
Answer:
45
Step-by-step explanation:
6/2 = 3
42+3 = 45
pplllzzz hellpppmeeeeeeeee
Answer:
21
Step-by-step explanation:
Given the radius (SV) = 10.5 cm, the diameter (RT) is 21 cm.
10.5(21) = 10.5(21)
The intersecting chords theorem or just The chord theorem is a statement in elementary geometry that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal.
A contractor purchases 4 dozen pairs of padded work gloves for $53.76. She incorrectly calculates the unit price as $13.44 per pair for the expense report. What is the correct unit price. What is the error
Answer:
1. The correct unit price of a pair = $1.12.
2. The error is taking the unit as 4 units instead of 48 units.
Step-by-step explanation:
a) Data and Calculations:
Cost of 4 dozen pairs of padded work gloves = $53.76
Each dozen pairs of the padded work gloves = $13.44 ($53.76/4)
Each pair of the padded work gloves = $1.12 ($13.44/12 or $53.76/48)
b) A dozen is made up of 12 units of something. A dozen is an accepted unit of measurement that has persisted since time immemorial. It originated from the practise of counting numbers in 12 instead of the current number system of 10.
Solve the following equation. show work. 3x^2 + -4x = 2
Answer:
[tex]x_{1[/tex]=-[tex]\sqrt{2}[/tex] , [tex]x_{2}[/tex]=[tex]\sqrt{2}[/tex]
Step-by-step explanation:
3[tex]x^{2}[/tex]-4=2
3[tex]x^{2}[/tex]=2+4
3[tex]x^{2}[/tex]=6 (divide both sides by 3)
[tex]x^{2}[/tex]=2 (simplify)
x=±[tex]\sqrt{2}[/tex]
Pleaseeee helpppp !!!!!!!! Will mark Brianliest !!!!!!!!!!!!!
Answer:
I think you're supposed to add all the fives together. That is what MY teacher taught me to do :/
Step-by-step explanation:
The shape is a square that is tilted and looks like a rhombus. Just add the 5's together.
Solve for the value of x
Answer:
i think is 12
Step-by-step explanation:
if sum 4x + 8 = 12x
u convert them youll get this
x = 12
Which of the following are remote interior angles of _1? Check all that apply.
Answer:
I would say 2,3,4.
Step-by-step explanation:
I hope this helps and i hope this is the right answer
a proportional relationship is formed when y = 16 x = -4 what is the value of x when y =4
Step-by-step explanation:
if it is direct proportion
Y=KX
16=K×-4
16/-4 =k
K=-4
then
Y=KX
4= -4×X
X= 4/-4
X= -1
30 random samples of high school students were asked if they played a sport for their high school. Each sample was 20 students. The dot plot represents the 30 random sample proportions.
Choose ALL that are correct.
A) A sample proportion of 0.20 means that 4 of 20 high school students responded that they play a sport.
B) Based on the sample distribution, the best prediction for the proportion of all high school students that play a sport is 0.10.
C) The mean of the 30 sample proportions calculated to the nearest hundredth is 0.16.
D) The shape of the sample distribution is fairly symmetrical.
Answer: a. This option is correct
b. This will be true only if we take the mode as the best representative value
c. This is a not correct choice
d. This option is correct
Step-by-step explanation: Took the test on USATest Prep
Which of the following could be a rational number? A.The sum of two irrational numbersB.The product of two irrational numbersC.The sum of rational number and an irrational numberD.The product of a rational number and an irrational number.
Caitlin went to the store to buy school clothes. She had a store credit from a previous return in the amount of $39.58. If she bought 4 of the same style shirt in different colors and spent a total of $52.22 after the store credit was taken off her total, what was the price of each shirt she bought? Write an equation that represents the situation where s represents the price of one shirt.
Answer:7535675
Step-by-step explanation:
A6 ft tall man standing next to a tree casts a 8 ft shadow. If the tree is 15 ft tall then how long is its shadow?
Answer:
The tree's shadow is 20 ft long.
Step-by-step explanation:
If you take 6 and 15 and turn it into a fraction 6/15 and take 8 and the missing value (x) and turn that into a fraction 8/x, then you can move to the multiplication.
6/15 *8/x = 6x=120/6
120/6=20
Hope this helps :)
Marshall had d dogs that he put into 4 different areas.
I need dis answer to st
Answer:
The given system of equations has infinitely many solutions.
Step-by-step explanation:
Given equations are:
4x-2y = 28
2x-y = 14
From equation 2:
[tex]2x-14 = y[/tex]
Putting in equation 1:
[tex]4x-2(2x-14) = 28\\4x-4x+28 = 28\\28 = 28[/tex]
When this happens in the solution of a system i.e. same constant on both sides of equation, the system of equations has infinitely many solutions.
Hence,
The given system of equations has infinitely many solutions.
What is the area, in square inches, of the shaded part of the shape?
A.110 square inches
B.48 square inches
C.140 square inches
D.80 square inches
2. A ratio that relates two quantities with different units of measure is
a
Answer: A rate
Step-by-step explanation:
A rate is a ratio that compares two different quantities with different units of measure
which number has an absolute value that is less then 25
A.) -32
B.) -26
C.) 19
D.)27
Answer:
C.) 19
Step-by-step explanation:
abs[-32]=32
abs[-26]=26
abs[19]=19
abs[27]=27
Answer:
C) 19.
Step-by-step explanation:
A is 32,
B is 26,
C is 19,
D is 27.
( in the absolute value form)
C is the only one less.
Hope this helps :D
I need help on distributive property please
Answer:
Could you put the questions please?
Step-by-step explanation:
