Answer:
Step-by-step explanation:
(2x-7y)(2x+7y)
2x(2x+7y)-7y(2x+7y)
4x^2+14xy-14xy-49y^2
4x^2-49y^2
(2x)^2-(7y)^2
Answer:
[tex] {4x}^{2} - 49y^{2} [/tex]
Step-by-step explanation:
Use (a - b) (a + b) = a^2 -b^2 to simplify the product.
[tex](2x)^{2} - (7y)^{2} [/tex]
To raise the product to a power, raise each factor to that power:
[tex] {4x}^{2} - (7y)^{2} \\ {4x}^{2} - 49y^{2} [/tex]
find the value of x HELP PLS
Answer:
x=45
Step-by-step explanation:
both angles are opposite angles with the same measurements
Set your formula up as
x+30=2x-15
30=2x-15-x
45=x
Now substitute 45 in place of x
x+30
45+30 = 75
2x-15
2*45-15 = 75
2x - 15 = x + 30
2x - 15 + 15 = x + 30 + 15
2x = x + 45
2x - x = x - x + 45
x = 45
Solve x + 5x – 14 = 0
Answer: x = 7/3
Step-by-step explanation:
You join the X’s first which will give you
6x-14 = 0
Then you move the 14 to the right
6x = 14
Then you dived them and it give you 7/3
Hope this helped
Perform the operation.
(4x^2+9x-7)-(-7x^2+5x-1)
[tex](4 {x}^{2} + 9x - 7) - ( - 7 {x}^{2} + 5x - 1) \\ = (11 {x}^{2} + 4x - 6)[/tex]
Answer:
11x^2+4x-6
Step-by-step explanation:
[tex]4x^2+9x-7+7x^2-5x+1\\\\simplify: 11x^2+4x-6[/tex]
PLEASE HELP ME ASAP In the equation Log2x = y, which of the following CANNOT be true?
O y is negative
O y is positive
x is negative
O x is positive
Answer:
option : x is positive
Step-by-step explanation:
[tex]log_2 x = y => x = 2^y[/tex]
Therefore, x is always positive
A blindfolded contestant makes a random selection from a bag
that contains white, red, green, and yellow marbles at a carnival
booth. The bag contains 12 marbles in total. Use the following
clues to determine how many marbles of each color are in
the bag.
=
Clue 1: P(white) + Plyellow) = P(green)
Clue 2: Of 40 players, 10 are expected to select a white marble.
Clue 3: If 2 green marbles are removed from the bag, then P(red) = 5
co
1. How many white marbles are in the bag? Explain.
HELP PLEASEIWJDO!NWDIOJQWILD
Answer:
5.66
Step-by-step explanation:
(-1,-3) (-5,1)
√(x2 - x1)² + (y2 - y1)²
√[-5 - (-1)]² + [1 - (-3)]²
√(-4)² + (4)²
√(16) + (16)
√32
= 5.66
Please help I dont get it
Answer:
382 in ^3
Step-by-step explanation:
HELP! THIS IS DUE TODAY, and i will mark brainlest!
Answer:
c
Step-by-step explanation:
An input can only have one output.
(X-3)^2=25 i need to find all the solutions to the equation
Answer:
x = {2, 8}
Step-by-step explanation:
(x - 3)^2 = 25
Take the square root of both sides
x - 3 = ±5
Add 3 to both sides
x = ±5 + 3
x = 5 +3 = 8
x = -5 + 3 = 2
x = {2, 8}
Answer:
x = 8, -2
Step-by-step explanation:
[tex](x-3)^2=25[/tex]
[tex](8-3)^2=25[/tex] Substitute x for 8 the subtract 8 - 3
[tex](5)^2=25[/tex] Multiply 5 by 5
[tex]25=25[/tex]
[tex](x-3)^2=25[/tex]
[tex](-2-3)^2=25[/tex] Substitute x for -2 then subtract -2 - 3
[tex](-5)^2=25[/tex] Multiply -5 by -5
[tex]25 = 25[/tex]
What is the domain of the absolute value function below?
-2-
1 2 3 4 5 6 7 8 x
O XS-4
0 x 22
0 (-09-4)
Remember
Domain is set of x valuesRange is set of y valuesHere
there is no starting or ending point
so domain is
(-oo,oo)
The domain of the absolute value function given is (-∞, +∞).
What is Function?A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.
Domain of a function is the set of all the input values and the range of the function is the set of all the output values.
Given is an absolute value function.
Absolute value functions are functions which has the absolute value symbols in the expression.
From the graph, we can see that the value of x moves from negative infinity to infinity.
Domain of the function is the set of input values which is the set of values of x.
So the domain is (-∞, +∞).
Hence the domain is (-∞, +∞).
Learn more about Absolute Value Function here :
https://brainly.com/question/23777839
#SPJ7
easy algebra question below first correct answer gets brainliest
if two successive discount of 50% are offered on a LCD TV with MRP of rupees 40,000 then find the price offered to the customer....... please tell me,,,,
Multiply the original by the first 50% discount:
40,000 x 0.5 = 20,000
Now multiply that by the second 50 % discount:
20,000 x 0.5 = 10,000
The price would be 10,000 rupees
Answer:
Step-by-step explanation:
[tex]\frac{50}{100}[/tex] × 40 000 = 20 000
HELPP..........anyone
Answer:
(12, 12, 156) and (9, 9, 162)Step-by-step explanation:
Since AB = AC and the triangle is isosceles:
∠ABC ≅ ∠ACB3x² - 2x + 4 = 9x - 63x² - 11x + 10 = 0x = (11 ± √(121 - 4*3*10)/6x = (11 ± 1) / 6x = 2, x = 10/6The angles:
m∠B = m∠C = 9*2 - 6 = 12°m∠A = 180 - 2(12) = 156°m∠B = m∠C = 9(10/6) - 6 = 9°m∠A = 180 - 2(9) = 162°Estimate the area of the figure below
Answer:
I think this is the answer 36 unit
(No links please) There were 2 red marbles, 3 blue marbles and 5 gold marbles in a bag.
You pulled out 1 red marble and did not replace it. Find the probability of drawing a gold marble next.
Answer:
5/9
Step-by-step explanation:
You started with 10 marbles total. You removed one marble and did not replace it, so you now have 9 marbles. The marble that you removed was NOT a gold marble, so you still have 5 gold marbles.
This means that out of the 9 marbles that you have left, 5 of them are gold.
This means you have a 5/9 chance of drawing a gold marble next.
7. John worked 32 hours last week and 28 hours this week. If he gets paid
$10.50/hour, what was his gross pay for the two weeks? *
Answer:
$630
Step-by-step explanation:
week 1 : $336
week 2 : $294
gross pay : $630
Which answer do I pick .
Solve for x. Round to the nearest tenth of a degree, if necessary
Answer:
39
Step-by-step explanation:
sin^-1(x)= 39/62
x= 38.97
x=39
16r > -100
serious answer only pls for my exam
Answer:
r > 6.25 or r> -25/4
Step-by-step explanation:
[tex]16r > -100\\\\r > \frac{-100}{16}\\\\r> \frac{-25}{4}\\\\r> 6.25[/tex]
Answer:
step-by-step.
16r>−100
Step 1: Divide both sides by 16.
16r/16 > - 100/16
r> - 25/4
Step-by-step explanation:
Answer is r>-25/4
Help I need answers fast!
What’s the equation of the line in slope intercept form
Answer:
y = 1/7x + 3
Step-by-step explanation:
Graph
P1(-7,2)
P2(0,3)
m = y2-y1/x2-x1
m = (3-2)/(0-(-7))
m = 1/0+7
m = 1/7
y - y1 = m(x-x1)
y - 2 = 1/7*(x -(-7))
y-2 = 1/7*(x+7)
y = 1/7x+7*1/7+2
y = 1/7x+1+2
y = 1/7x+3
Does anyone have answers to the Parametric Functions Test? Pre-Calc
option 3
option2
hope helps you
have a nice day
1. The curve is a parabola with a vertex at (2,1) and is traced from left to right for increasing values of t.
Step-by-step explanation:
1. explanation is in the image
is -(-3/2) equivalent to -3/2
Answer:
no it's equal to 3/2 because 2 negatives equal a positive number
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
No, it's not equivalent
Step-by-step explanation:
[tex]-(\frac{3}{2} ) = 1\frac{1}{2\\}[/tex]
[tex]-\frac{3}{2} = -1\frac{1}{2}[/tex]
Based on the labels in the diahram of the human eye,the reader can conclude that
Find v.
Write your answer in simplest radical form.
Answer:
3[tex]\sqrt{3}[/tex]
Step-by-step explanation:
in a 30-60-90 triangle, the side across from 60° is [tex]\sqrt{3}[/tex] multiplied by the side across from 30°
the side across from 90° (the hypotenuse) is double the side across from 30°
how do you put pie into a calculator???
Answer:
either take the value as 3.14 or press SHIFT x10^x
Create an equivalent expression. Use^ to notate an exponent. Do not use parentheses.
(2x^3)^4
Sample Answer:
2x^12
Step-by-step explanation:
So whenever an exponent is to an exponent, simply multiply the exponents together:
(2x^3)^4 --> 2x^12
This simplified form of the question is a new, equivalent expression.
What is the slope-intercept form equation of a line that has a slope of 1 and passes
through the point (-4, 10)?
Answer:
y = 1x+14
Step-by-step explanation:
The slope intercept form is
y = mx+b where m is the slope and b is the y intercept
y = 1x+b
Substitute the point into the equation
10 = -4+b
Add 4 to each side
10+4 = -4+b+4
14 = b
y = x+14
Theodore deposited $2400 into a savings account for which interest is compounded monthly at a rate of 2.8%. How much interest will he earn after 10 years? *
$58.51
$678.59
$2478.59
$7679.48
How much material is needed to make the Nón Lá Vietnamese leaf hat? Round to the nearest tenth.
The surface area is
in.²
9514 1404 393
Answer:
408.4 in²
Step-by-step explanation:
The lateral area of a cone is ...
LA = 1/2πds . . . . . . . where d is the diameter and s is the slant height
Using the given dimensions, the area of the hat is ...
LA = 1/2π(20 in)(13 in) = 130π in² ≈ 408.4 in²
The surface area is about 408.4 in².