Answer:
Step-by-step explanation:
Given question is incomplete; here is the complete question,
"Which system of equations has a solution of approximately (0.7, -1.4)?"
A). x - y = 2 and x + 2y = -2
B). x - 2y = -2 and x + y = 2
C). x - y = 2 and x - 2y = -2
D). x + y = 2 and x + 2y = -2
"If the given point (0.7, -1.4) is the solution of the system of equations, it will satisfy both the equations"
To check whether the statement given above is true or false we will substitute the values of x and y in the given equations,
A). x - y = 2
0.7 - (-1.4) = 2.1
≈ 2
x + 2y = -2
0.7 + 2(-1.4) = -2.1
≈ -2
True.
B). x - 2y = -2
0.7 - 2(-1.4) = 3.5
x + y = 2
0.7 - 1.4 = -0.7
False.
C). x - y = 2
0.7 - (-1.4) = 2.1 ≈ 2
x - 2y = -2
0.7 - 2(-1.4) = 3.5
False.
D). x + y = 2
0.7 - 1.4 = -0.7
x + 2y = -2
0.7 + 2(1.4) = 3.5
False.
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
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!!!
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)
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:
Find X
Pls help i have a quiz
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!
Someone plz help I’m timed
Answer:
-8x^3 + 9x^2 - 28 (Last choice)
Step-by-step explanation:
The question is asking what f(x) - g(x) is.
Use the given equations and add/subtract like-terms,
-8x^3 +20x^2 - 5 - 11x^2 -23 = The solution above
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]
What is the product of 4.5 x 6.2 ?
Answer:
27.9
Step-by-step explanation:
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]
There are 4 triangles and 6 squares. What is the simplest ratio of triangles to squares?
Answer:
4:6 = 2:3
2:3 is the simpilest ratio
Answer:
2 to 3 2/3
Step-by-step explanation:
4 triangles divided by 2 is 2
6 divided by 2 is 3
2/3
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
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! :)
ILL GIVE U BRAINYLIST
select the the correction solution for 5 x equals 50
x=45
x=1/10
x=55
x=10
Answer:
x=10
Divide both sides of the equation by the same term,
then simplify
help me pleassssseeeeeeeeeeeeeeee
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 HELP!!! 20 POINTS!!
Answer:
guessing 8
Step-by-step explanation
27-3= 24
24/3=8
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
△ABC with m∠A=35° , m∠B=60° , and m∠C=85° .Which statements about the triangles are true?
Question 3 options:
AB > BC
BC > AC
AC > AB
AC > BC
PLEASE HELP IM FAILING MATH IT IS 6th GRADE ALGEBRA
Answer:
1a, 2c, 3e, 4b, 5f, 6g
Step-by-step explanation:
i dont see the answer for 6, so i'm going with g
Answer:
1.A 2.C 3.E 4.B 5.F 6.G
Step-by-step explanation:
can i get brainliest plz
Answer of this questions
whats the opposite of -2
Answer:
positive 2 is the opposite
What is a rational number? Plzzz help
Answer:
A number that can be written as a fraction.
Example: -3/7
Draw a pie chart representation of Roxy’s one-year budget plan using the expenses and income amounts from parts B through E.
Financial Math!!
Answer:
Step-by-step explanation:
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
Can someone help me Asap
plssss helppppppppp 333333333333
a glacier moves 5 cm in 8 days how many cm does it move in 1 day?
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
can someone help me please
Answer:
Pythagorean Theorem: a^2 + b^2 = c^2
12^2 + b^2 = 27^2
144 + b^2 = 729
b^2 = 585
b = 24.19
Let me know if this helps!