Answer:
Step-by-step explanation:
x^2 + 4x - 5 = 0
-4/2 + (sqrt(16 - 4(1)(-5)))/2
-2 + (sqrt(16+20)/2
-2 + (sqrt(36)/2
-2 + 6/2
-2 + 3
-2 + 3 = 1
-2 - 3 = -5
Which of the following sets of numbers does V49 NOT belong?
Answer:
D.
Step-by-step explanation:
√49 = 7 by definition of square root.
7 is an integer, and all integers are real numbers.
7 is also rational as all integers are rational.
√49 is not an irrational number.
Your answer should be a polynomial in standard form.
(c^2 - 6)(2c^2 + 3c - 1)
Answer:
[tex] \boxed{ \bold{ { \boxed{ \sf{2 {c}^{4} + 3 {c}^{3} - {13c}^{2} - 18c + 6}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{( {c}^{2} - 6)(2 {c}^{2} + 3c - 1)}[/tex]
Use distributive property
[tex]{ \sf{ {c}^{2} (2 {c}^{2} + 3c - 1) - 6(2 {c}^{2} + 3c - 1)}}[/tex]
[tex] \sf{2 {c}^{4} + 3 {c}^{3} - {c}^{2} - 12 {c}^{2} - 18c + 6}[/tex]
Collect like terms
[tex] \sf{2 {c}^{4} + 3 {c}^{3} - 13 {c}^{2} - 18c + 6} [/tex]
Hope I helped!
Best regards! :D
Please help !!!!!!!!
Answer:
D
Step-by-step explanation:
Step-by-step explanation:
D
p(x)=o
p(x+2-2)=o
p(x)=o
(-7x² + 3) – (-4x – 3)
if youre soliving to get x
2
-4x - 7x
-16x-7=-23
you answer should be a polynomial in standard form (x- 4) ( x + 7)
Which of these expressions are equal to −2i ? Choose all that are correct. A (2−2i)2 B (1−i)(1+i) C (2−3i)−(2−i) D (2−i)−(2−i) E (−4+2i)(1+i) F (1−i)2
Answer:
b and f
Step-by-step explanation:
just took the quiz
if f(x) = x - 2, what is f(-1)?
Step-by-step explanation:
f(x) = x - 2
f(-1) = -1 -2
= -3
The price c of a used car plus 11% sales tax
Answer:
This is the expression: c +( 0.11*c)
Step-by-step explanation:
A store employee creates a display of sleds priced at $40 apiece. The store paid $32 for each sled. What is the mark-up percentage
Answer:
Mark-up percentage is 25%.
Step-by-step explanation:
From the question, the store bought each sled at $32 which is the cost price. The sled was display for sale at $40 apiece.
Mark-up percentage = [tex]\frac{selling price - cost price}{cost price}[/tex] x 100%
But,
selling price - cost price = $40 - $32
= $8
So that,
Mark-up percentage = [tex]\frac{8}{32}[/tex] x 100%
= 0.25 x 100%
= 25%
Therefore, the mark-up percentage is 25%.
Answer:
25%
Step-by-step explanation:
–8( — 10и + би — 7) – 10и
Answer:
22и + 56
Step-by-step explanation:
Order of Operations: BPEMDAS
Step 1: Parenthesis (add)
-8(-4и - 7) - 10и
Step 2: Distribute (multiply)
32и + 56 - 10и
Step 3: Combine like terms (и)
22и + 56
Square root of 50 estimated to the nearest integer
Answer:
square root of 50 estimated to the nearest integer is, 7.1
Step-by-step explanation:
step 1. the square root of 50 is 7.07106781186548
step 2. reduce is 7.07
step 3. round 7.07 so you only have one digit after the decimal point to get the answer., 7.1
Answer:
7
Step-by-step explanation:
Consider perfect squares either side of 50, that is
49 < 50 < 64, thus
[tex]\sqrt{49}[/tex] < [tex]\sqrt{50}[/tex] < [tex]\sqrt{64}[/tex] , that is
7 < [tex]\sqrt{50}[/tex] < 8
Since 50 is nearer to 49 than it is to 64, then
[tex]\sqrt{50}[/tex] ≈ 7 ( to the nearest integer )
16-x=-5
Solve for x!!!!!!!
Answer:
x = 21
Step-by-step explanation:
Given
16 - x = - 5 ( subtract 16 from both sides )
- x = - 21 ( multiply both sides by - 1 )
x = 21
3
Find the equation of the line that passes through the point (4, 17) and is parallel to:
y= 5x + 2
****Hint: use the point-slope formula to help you*****
Name a fourth point that lies in the same plane as points W, S, and Z.
The image consists of a cuboid with VUZY as front side and STXW as back side respectively.
Answer:
Is it y
Step-by-step explanation:
WHAT IS 10/10 AND 20/20 I NEED HELP ON THIS MULTICATION
Answer:
a whole?????
Step-by-step explanation:
Solve 3(x + 1) + 6 = 33.
Plz
Answer:
The answer is b.
Step-by-step explanation:
Just substitute it. :)
3(8+1)+6=33
8+1=9
9*3=27
27+6=33
Answer:
the answer is b or 8
Step-by-step explanation:
just plug all of them and see if it makes sense
Use the law of conservation of momentum to determine the answer to the
flowing question: In this group, there are two hockey pucks, both with a mass of
0.25 kg. One is traveling at 2 m/s. The other is at rest. What is the momentum of
this group of objects?
Given :
Two hockey of same mass.
One is travelling at a speed of 2 m/s.
Other is in rest or 0 m/s.
To Find :
The momentum of this group of objects.
Solution :
Since , no external force is applied , so momentum will remains same :
Momentum of group of objects ,
[tex]M = mv_1^2+mv_2^2\\\\M = 0.25\times 2^2+0.25\times 0\\\\M=1 \ kg \ m/s[/tex]
Therefore , momentum of the system is 1 kg m/s.
Hence , this is the required solution.
Camera: $110.95 Discount: 20% Sales tax: 5%
Step-by-step explanation:
You will pay $18 for a item with original price of $20 when discounted 10%. In this example, if you buy an item at $20 with 10% discount, you will pay 20 - 2 = 18 dollars.
Which equation does the graph below represent?
y = 1 x
y = 4x
y = _ 1x
y = -4x
Answer:
Y=-4x
Step-by-step explanation:
Whenever you solve for slope, and the slope is 1, never write 1 in the equation. Write either -x or x. Let's take two coordinates, one which is (0, 0), which is the origin, and (1, -4). To find the slope, we insert the first coordinate and second coordinate values into the equation (Y2-Y1)/(X2-X1). We can insert these coordinates to get (-4 - 0)/(1 - 0), which simplifies to (-4)/1, which further simplifies to -4. Since the Y-intercept is zero, there is no value of B in the equation, which leaves the equation as Y=-4x
what is the absolute value of 2.3
The absolute value of any positive number is that number itself.
If you take the absolute value of a negative number, then just erase the negative sign and you have your answer.
The absolute value is never negative. It represents distance from that value to 0 on the number line.
So saying |2.3| = 2.3 means the number 2.3 is exactly 2.3 units away from 0 on the number line.
Another example would be |-7| = 7 showing that from 0 to -7 is 7 spaces.
The required absolute number of 2.3 is also 2.3.
GIven that,
An absolute number of the value 2.3 is to be determined.
Functions are the relationship between sets of values. e g y=f(x), for every value of x there is its exists in a set of y. x is the independent variable while Y is the dependent variable.
The absolute number is defined as the outcome of the modulus function is called the absolute number or all natural numbers are examples of absolute numbers.
Here,
For the absolute value,
f(x) = |x|
f(2.3) = |2.3|
(since |x| = x or | -x | = x )
f( 2.3 ) = 2.3
Thus, the required absolute number of the value 2.3 is 2.3 itself.
Learn more about function here:
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Which expression is equivalent to x to the power of 4 multiply by x to the power of negative 2 is?
Find the coordinates of the midpoint of a segment with the given endpoints. (-2.5) & (3-17)
Answer:
Step-by-step explanation:
(-2+3)/2 = 1/2
(5 - 17)/2 = -12/6= -2
(1/2, -2)
Answer:
Find the coordinates of the midpoint of a segment with the given endpoints. (-3,5) (7,-1)
Step-by-step explanation:
What value(s) of x will make x2 = 25 true?
Steps to solve:
x² = 25
~Take the square root of both sides
x = ±5
Best of Luck!
Answer:
[tex]\large\boxed{x=5}[/tex]
Step-by-step explanation:
[tex]x^{2}[/tex] = 25
Find the square root of 25 to find the value of x (get rid of the exponent).
[tex]\sqrt{25}[/tex] = 5
[tex]\large\boxed{x = 5}[/tex]
Hope this helps :)
−8y−13=14y+11 what is the answer?
Answer:
y = -12/11
Step-by-step explanation:
-8y - 13 = 14y + 11
-8y - 14y = 11 + 13
-22y = 24
y = 24/-22
y = -12/11
Check:
-8*-12/11 - 13 = 14*-12/11 + 11
96/11 - 13 = -168/11 + 11
96/11 - 143/11 = -168/11 + 121/11 = -47/11
Find the value of b. Then find the angle measures of the pentagon.
b=
Question 2
The angle measures from least to greatest are
∘,
∘,
∘,
∘, and
∘.
Answer:
B = 90
Step-by-step explanation:
cause math lol.
1. Conrad spent $48 on art supplies. The canvas for each of his paintings is an additional $2. He plans to sell his paintings for $10. a. Write an equation that could be used to find the number of paintings (p) he will need to sell to break even.
Thanks
The equation for break even is 8P = 48
What is an Equation ?An equation is an expression that states the equality of two things expressed in different form.
In the given question
Conard spent $48 for art supplies
Canvas costs $2
He plans to sell his painting for $10
∴ Without the canvas his paintings costs $(10 - 2)
= $8
So, no. of paintings (P) to break even he needs to sell
8P = 48
P = 6
∴ Conard needs to sell 6 paintings to break even.
Learn more about Equations here :
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3х - 2y = 14
5х + бу =42
What’s this on a graph?
Answer:
Step-by-step explanation:
9x - 6y = 42
5x + 6y = 42
14x = 84
x = 6
30 + 6y = 42
6y = 12
y = 2
(6, 2)
w-5<17 solve the inequality for w
Answer:
w < 22
Step-by-step explanation:
w - 5 < 17
Add 5 to both sides:
w - 5 + 5 < 17 + 5
w < 22
Yolanda bought a rose bouquet. The equation C = 1.5r+6 represents the cost, C, of a rose bouquet that has r roses. Yolanda's bouquet
cost $30.
How many roses were in Yolanda's bouquet?
O A 16
B. 20
O c. 24
D. 26
O E 36
Answer:
A. 16 roses
Step-by-step explanation:
30 - 6 = 24
24 divided by 1.5 equal 16
r = 16
hopefully this helps you :)
pls give me brainlest :)
Write "k:6" in words in two different ways.
Answer:
k to 6, k over 6.
Step-by-step explanation:
Answer:
k over 6 k to 6
Step-by-step explanation:
: means to and over :) please mark brainliest