find the product (4x - 7) (4x +7)
Answer:
(4x)^2-49
Step-by-step explanation: hoped I helped
The equation x2 = d has how many real solutions when d > 0?
Answer:
Two: [tex]\sqrt{d}[/tex] and [tex]\left(-\sqrt{d}\right)[/tex].
Step-by-step explanation:
The question is asking for the number of real numbers [tex]x[/tex] whose square is equal to [tex]d[/tex] (where [tex]d > 0[/tex].)
Naturally, the square root of [tex]d[/tex]: [tex]\sqrt{d}[/tex] would satisfy the requirement. [tex]\left(\sqrt{d}\right)^{2} = d[/tex].
However, keep in mind that [tex](x)^2[/tex] and [tex](-x)^{2}[/tex] have the same value. Therefore, if [tex]x =\sqrt{d}[/tex] would satisfy the equation, the opposite [tex]x = -\sqrt{d}[/tex] would also do.
Since [tex]d > 0[/tex], [tex]\sqrt{d}[/tex] and [tex]\left(-\sqrt{d}\right)[/tex] would both take real values.
Because [tex]d \ne 0[/tex], the value of [tex]\sqrt{d}[/tex] and [tex]\left(-\sqrt{d}\right)[/tex] would be distinct.
Hence, [tex]\sqrt{d}[/tex] and [tex]\left(-\sqrt{d}\right)[/tex] would correspond to the two real solutions of this equation.
Which of the numbers below is greater than zero? Select all that apply.
3.5
4/5
-1/2
3.2
-0.5
Answer fast i will give bainlyist!
Use your graphing calculator to find the square root function that fits the data in the table shown below.
Answer:
isn't that cheating
Step-by-step explanation:?
How do you simplify X^-7?
Answer:
below
Step-by-step explanation:
Rewrite the expression using the negative exponent rule
b ^− n =1/ b^ n . 1 x^ 7
a right triangle has side lengths 8, 15, and 17 as shown below. Use these lengths to find cosY, sinY, and tanY
hellp me pls i need to pass this class or my parents will kill me for not passing
Answer:
hello wat is the matter how can I help I am a tutor I can teach you
what coordinate points (x,y) represents how far the vacuum travels in two and a half minutes
Answer:
40 square feet
Step-by-step explanation:
Plz help fast I will mark brainiest!!!
Answer:
Step-by-step explanation:
You’re supposed to use the points (4,-3) and (1,-4).
Slope = (difference of y-coordinates)/(difference of x-coordinates)
= (-3 - (-4))/(4 - 1) = 1/3
Answer:
slope = [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, - 4) and (x₂, y₂ ) = (4, - 3) ← 2 points on the line
m = [tex]\frac{-3+4}{4-1}[/tex] = [tex]\frac{1}{3}[/tex]
PLZ HELP WITH MATH!!!
Answer:
128 in.^2?
Step-by-step explanation:
a rectangle is also a parallelogram, so find the area of the rectangles.
if it is a 30-60-90 triangle, 8 inches is x, and to find the sides, it is either (x)sqrt(3), or in this case, 2x, so 16x8= 128?
help for 20 points plsss helppp
Answer:
hkj
jkg
Step-by-step explanation:
Plz mark me brainliest.
Quadratic functions g(x) and h(x) are graphed on the same coordinate grid. The vertex of the graph of h(x) is 12 units above the vertex of the graph of g(x) .
Which pair of functions could have been used to create the graphs of g(x) and h(x)?
h(x)=(x+12)2 and g(x)=x2
h(x)=x2−12 and g(x)=x2
h(x)=x2+12 and g(x)=x2
h(x)=(x−12)2 and g(x)=x2
Answer:
h(x) = x^2 + 12 and g(x) = x^2
Step-by-step explanation:
In this case there is a positive, vertical translation of 12 units up.
The original g(x) = x^2 has its vertex at (0, 0), whereas h(x) has its vertex at (0, 12). The function h(x) is found by adding 12 to g(x) = x^2:
h(x) = x^2 + 12
The third answer choice is the correct one: h(x) = x^2 + 12 and g(x) = x^2
please help me this is for a grade
Answer:
b
Step-by-step explanation:
Which shows the numbers in order from greatest to least? A. 13 456 43 165 14 653 B. 13 456 14 653 43 165 (C.) 43 165 14 653 13 456 D. 43 165 13 456 14 653
Answer:
(C.) 43 165; 14 653; 13 456
Step-by-step explanation:
The numbers:
13, 456
43,165
14, 653
Arranging in order from greatest to least:
43,165; 14,653; 13,456
Option C is the correct answer
A. 13 456 43 165 14 653
B. 13 456 14 653 43 165
(C.) 43 165 14 653 13 456
D. 43 165 13 456 14 653
What is y-intercept represented in the graph below?
Someone, please help me I have no idea what I'm doing...
The distance between Franklin City and Williamsville on a map is 3.2 inches. If the scale of the map is 1 inch = 15 miles, how many miles apart are the two cities?
Answer: 48 miles
Step-by-step explanation:
From the question, the distance between Franklin City and Williamsville on a map is 3.2 inches and the scale of the map is 1 inch = 15 miles.
The distance between the cities will be to multiply 3.2 by 15 to get the number of miles since 1 inch = 15 miles. This will be:
= 3.2 × 15 miles.
= 48 miles
The distance between Franklin City and Williamsville is 48 miles.
Answer:
48 Miles
Step-by-step explanation:
Good Luck
If x = 2 and y = 6 , evaluate the following expression: 2 ( x + y )
Answer:
Step-by-step explanation:
If x = 2 and y =6
Then
2 ( x+ y)
= 2 ( 2 + 6)
= 2 * 8
= 16
hope it helps :)
Answer:
16
Step-by-step explanation:
you will do 2 + 6 = 8
so it = 8
x=2
y=6
and than u will 8 x 2 = 16
the answer is = 16
PLEASE HELP ME UHHH THaNKS IF U DO
Answer: need more explantion
Step-by-step explanation:
Answer: Mean: 39 Median: 50 Range: 7-55
Step-by-step explanation:
Hope this helps :D
If the triangles in the diagram are congruent, then x is equal to 30°.
True or false
PLsssssssssss help giving top commnent and possibalby brainlyest
Answer:
b
Step-by-step explanation:
Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form.
Answer:
i believe the answer is b
Step-by-step explanation:
Write an equation for a line that passes through the points (4, -3) and (-1,2). can someone help me how?
Answer:
Y=-x+1
Step-by-step explanation:
Answer:
y=-x+1
Step-by-step explanation:
to get this you use the point-slope formula
y-y1=m(x-x1) - plug in the coordinates and find the slope
y--3=-1(x-4) - change the sign and solve the parentheses
y+3=-x+4 - subtract 3 from both sides to get y by itself
y=-x+1
Which of the US cities shown on the map has the largest population?
Philadelphia, PA
Chicago, IL
Jacksonville, FL
New York City, NY
Answer:
new york
Step-by-step explanation:
A building is 16.3 meters from a television tower. The tower
is taller than the building. From the top of the building, the
angle of depression to the base of the tower is 43.5°. Also
from the top of the building, the angle of elevation to the top
of the tower is 23.8°. Find the height of the tower. You
MUST round to the nearest tenth (one place after the
decimal).
Answer:
23
Step-by-step explanation:
height of building plus x
HELP ME PLEASEEEE I DONT WANNA FAIL
I think it's "D. -16"
I could be wrong though just saying!
Help me plsss plssss plsssssss
Answer:
9 1/2
Step-by-step explanation:
Add 2 1/2 plus 3 1/2 plus 3 1/2 to get 9 1/2.
hi please help i’ll give brainliest
Answer:
The answers for this question are 1 and 0
Answer:
the correct answers are 1 and 0
|x-(-12)| if x>-12
ill give brainlyest if corect
Answer:
I don't know hhdhjrrhhejeuie
Help!!!! please!!! i will give brainliest!! Find the area
Answer:
51
Step-by-step explanation:
trapezoid area calculator, A=(a+b/2)h