Determine if 9 - 4x2 is the difference of two squares and if it is, factor it.
Answer:
Step-by-step explanation:
9 = 3 * 3 = 3²
4x² = 2²x² = (2x)²
9 - 4x² = 3² - (2x)² {a² - b² = (a + b)(a - b) ; a = 3 ; b = 2x}
= (3 +2x)(3 - 2x)
HELP PLS!!!!
Al, Barb, and Calvin shared a large pepperoni pizza after school. Al ate 1/3 of the pizza, Barb ate 1/4 of the pizza. and Calvin ate the rest. What is the ratio of Al's share of the pizza, to Barb's share, to Calvin's share?
a. 4:3:5
b. 3:4:7
c. 5:4:3
d. 3:4:5
e. 4:5:7
Answer:
A. 4:3:5
Step-by-step explanation:
Al ate 1/3, which is 4/12. Barb ate 1/4, which is 3/12. That leaves 5/12 for Calvin to eat.
please help me !!!! I will mark brainliest
Answer:
Step-by-step explanation:
Answer:
Its the last one
Step-by-step explanation:
Your Welcome!
help me pleassssseeeeeeeeeeeeeeee
Can someone help me Asap
This is adding linear equations:
1. (–6x + 3) + (5x – 4)
2. (–2x + 10) + (–8x – 1)
3. (–4x + 6) + (x – 5)
4. (1.3x + 2.4) + ( –6.1x – 3.2)
5. (0.5x – 0.6) + (0.75x – 0.1)
6. (–7x – 14) + (x – 6)
7. (9x + 7) + (x + 3)
8. (4x – 1) + (–5x + 17)
I honestly just need help, so you can just do one of any problem on here, then I'd just need it to be explained and answered so that I understand
WILL GIVE BRAINLIEST ANSWER!!
How are the steps for graphing a line
using slope-intercept similar to using
point-slope? How are they different?
Answer:
they both use y^2-y^1 and x^2 - x^1, one is to find the slope the other is to find the y intercept
Step-by-step explanation:
Slope-intercept is when you have a graph and a equation such as y=mx+b
y = y coordinate
m = slope
x = x coordinate
b = y intercept
point-Slope is when you have this equation and you use (x1, y1) as the coordinates to graph.
y - y1 = m * (x - x1)
evaluate above. can someone tell me the answer and how to do it?
Answer:
(31y² + 3y + 12) / 6y
Step-by-step explanation:
See photo below.
Feel free to ask any questions! :)
What is the ratio of apples to bananas
Hank has a large bag of trail mix that weighs 9.0 pounds. He uses the mix in the large bag to make bags each containing 0.6 pound of mix.
How many bags containing 0.6 pound can be made?
Answer:
15 is the answer
Step-by-step explanation: 9.0 divided by 0.6 = 15. Hope this help!!!
Find X
Pls help i have a quiz
What integer values satisfy both inequalities?
-3<x<2
-2 ≤ x ≤ 2
Answer:
- 2, - 1, 0, 1
Step-by-step explanation:
Consider the integers that satisfy each inequality
- 3 < x < 2
solutions are x = - 2, - 1, 0, 1
- 2 ≤ x ≤ 2
solutions are x = - 2, - 1, 0, 1, 2
Thus the integer values that satisfy both are common to both, that is
x = - 2, - 1, 0, 1
What is the distance, in units, between the points (2, 3) and (2, -6) ?
Answer:
To find the distance between any two points, you can use the distance formula. However, the two ordered pairs have the same "x-coordinate" so all we really have to find is the distance of the y coordinates.
To get from 3 to -6, we have to move 3+6, or 9 units.
So, the answer would be 9 units.
Let me know if this helps!
HELP ME I DONT KNOW ITS ABOUT Writing Equations of Lines!!! I WILL GIVE BRAINLIEST
Answer:
y=4/3x-7
Step-by-step explanation:
Answer:
Y=4/3x-7
Step-by-step explanation:
A water tank initially contained 105 liters of water. It is then filled with more water, at a constant rate of 9 liters per minute. How many liters of water are in the tank after 109 seconds? Round answers the nearest whole liter.
Answer:
Convert 300 L in 15 seconds to L/min a. ... 10) How many kilograms of water are in a standpipe containing 5678 L? a. ... tank volume if a pump is discharging a constant 60 litres per minute into the tank
M is a point on line segment LH. KM is a line segment. Select all the equations that represent the relationship between the measures of the angles in the figure.
Group of answer choices a = b a + b = 90 b = 90 − a a + b =180 180 − a = b 180 = b − a
Answer:
180 - a = b and a + b = 180
Step-by-step explanation:
What is the correct height of the triangle ??
Answer:
9 units
Step-by-step explanation:
The dotted line, which is the height, is labeled as 9, so it is 9 units.
Hope that helps!
Answer: 9 units
Step-by-step explanation: If you look at the question on the photo you see a dotted line with a 9 on it. On a triangle when you something like that you know it the actual height of the triangle
please I need someone to help my assignment
Answer:
1) 20: 25
2) 15: 3
Step-by-step explanation:
Consider functions f and g. f(x) = 8/x+2 g(x) = 4x^2 + 2 Evaluate the function composition. (f ° g)(-1)= _____
Answer: 1
Step-by-step explanation: you plug in -1 as x for g(x) and you use the answer from that (which is 6) and plug that into f(x)
The value of composite function (fog)(-1) = 10/3.
What is composite function?A function whose values are obtained from two given functions by first applying one to an independent variable and then using the result to apply the second, and whose domain is made up of those independent variable values for which the first function's result falls within the second function's domain.
The two functions are given below:
f(x) = 8/x+2
g(x) = 4x² + 2
To evaluate the composite value (fog)(-1), first solve for g(-1).
Put x = -1 in 'g' function
g(x) = 4x² + 2
g(x) = 4(-1)² + 2
= 4 + 2
g(x) = 6
Now, substitute the value of g(6) in 'f' function
f(x) = 8/x+2
f(6) = 8/6 + 2
= 10/6
Therefore, the composite value (fog)(-1) = 10/3.
To know practical use of composite function, here
https://brainly.com/question/27891702
#SPJ2
Which is the best rational approximation for the square root of 55 ?
A: 7.5
B: 5.5
C: 11.0
D: 27.5
Answer:
The best rational approximation for the square root of 55 is 7.5.
Let me know if this helps!
tan 0 = -2, 0
lies in the Il quadrant
Find the five remaining trigonometric function values
Answer:
Sin O = [tex]\frac{2\sqrt{5} }{5}[/tex]
Cos O = [tex]-\frac{\sqrt{5} }{5}[/tex]
Cot O = [tex]-\frac{1}{2}[/tex]
Csc O = [tex]\frac{\sqrt{5} }{2}[/tex]
Sec O = [tex]-\sqrt{5}[/tex]
Step-by-step explanation:
Do you know the definitions of all the trig functions? If not, you need to memorize them. Also, you need to memorize which functions are positive in each quadrant. All functions are positive in quad I, sine and reciprocal are positive in quad II, tan and reciprocal are positive in quad III, and cos and reciprocal are positive in quad IV. OK?
Tan of an angle is opposite side/adjacent side of a right triangle
If the tan O = - 2. let the opp. side = 2 and adjacent side = 1. Then the hypotenuse = [tex]\sqrt{2^{2} + 1^{2} } = \sqrt{4 + 1} = \sqrt{5}[/tex]
Sine is positve and equals opp/hyp = [tex]\frac{2}{\sqrt{5} } = \frac{2\sqrt{5} }{5}[/tex]
Cos is negative and equals adj/hyp = [tex]-\frac{1}{\sqrt{5} } = -\frac{\sqrt{5} }{5}[/tex]
Cot is negative and is the reciprocal of the tan or adj/opp = [tex]\frac{-1}{2}[/tex]
Csc is positive and is the reciprocal of the sine or hyp/opp = [tex]\frac{\sqrt{5} }{2}[/tex]
Sec is negative and is the reciprocal of the cos or hyp/adj = [tex]-\sqrt{5}[/tex]
Which table represents a linear function?
At a glance, Kendra believes that the function represented on the graph is linear.
How can Kendra determine if the function is actually linear?
She can check to see if the rate of vertical increase equals the rate of horizontal increase between each pair of points.
She can check to see if the sum of each y-value and x-value in every ordered pair is the same.
She can check to see if the quotient of each y-value and x-value in every ordered pair is the same.
She can check to see if the rate of change between the first two ordered pairs is the same as the rate of change between the first and last ordered pairs.
Find the Volume of the shape below.
V =
yd³
Answer:
[tex]v = \frac{b \times h \times l}{2} \\ \frac{12 \times 6 \times 14}{2} \\ = 504[/tex]
please answer this quickly
Answer:
its C
Step-by-step explanation:
Answer:
The equation is: 5(x+9) = 55
This basically means that five times the quantity x+9 is equal to 55.
Let me know if this helps!
What is the density of a sample with a mass of 5250g and a volume of 4.5mL?
Step-by-step explanation:
Density=5250/4.5=1166.66 g/ml
Carl spent $140 in six days. He spent $20 on the first day. He spent the same amount of money during the next five days Write an equation
plz help me
Answer:
answer: he spent $120
Step-by-step explanation:
20×5=100
100+ the initial $20 spent = $120
Given right triangle PQR which represents the value of sin p
Answer:
RQ/PQ
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
its right
plssss helppppppppp 333333333333
Please HELP!!! 20 POINTS!!
Answer:
guessing 8
Step-by-step explanation
27-3= 24
24/3=8
29. The circumference of a circle is C centimeters. The diameter of the circle is 13
centimeters.
Which expression best represents the value of ar?
Answer:If the diameter is 13 you should try each answer until you find pi.
To find pi you have to divide the circumference by the radius.
You don't need to find the circumference in this question but you can.
The circumference is 40.82
Then you have to divide
40.82÷13
that equals 3.14
and because that is pi, C is your answer
Step-by-step explanation: