Answers
Answer:
4x-3y=-10 ans C
2x+3y=4
Step-by-step explanation:
4x-3y=-10--------eqn 1
2x+3y=4----------eqn 2
multiply eqn 1 by 2 and eqn 2 by 4
8x-6y=-20
8x+12y=16
subtract eqn 2 from 1
8x-8x ,12-(-6y)=16-(-20)
18y=36
divide both sides by 18
y=2
substitute y=2 in eqn 1
4x-3(2)=-10
4x-6=-10
4x=-10 + 6
4x= -4
divide both sides by 4
x= -1
Related Questions
8 × 10 + 6 − 2 7 + 5 × 8 − 4
Answers
Answer:
95
Step-by-step explanation:
(8)(10)+6−27+(5)(8)−4
=80+6−27+(5)(8)−4
=86−27+(5)(8)−4
=59+(5)(8)−4
=59+40−4
=99−4
=95
hope this helped :)
Answer:
95
Step-by-step explanation:
8*10+6-27+5*8-4
=80+6-27+40-4
=86-27+36
=95
A town has a population of 7000 and grows at 4% every year. What will be the population after 13 years, to the nearest whole number?
Answers
Answer:
Step-by-step explanation:
7,000 × 1.04¹³ = 11,656
7+12x=103 show how you checked it was right
Answers
Answer:
x=8. You plug 8 in for x.
7+12(8)=103
7+96=103
Step-by-step explanation:
7+12x=103
or 12x=103-7
x=96/12=8
to check it 8 is needed.
7+12×8=103
Please help!! (Prob and Stats)!!
Answers
Answer:
why
Step-by-step explanation:
your image is blocked
(24.7C) The area of a rectangle is equal to x2 +
16x + 55 square units. If the length of the
rectangle is equal to x + 11 units, what expression
represents its width?
Answers
Answer:
x + 5
Step-by-step explanation:
A = LW
W = A/L
W = (x^2 + 16x + 55)/(x + 11)
W = [(x + 11)(x + 5)]/(x + 11)
W = x + 5
Ali can bike ride 12 miles per hour. How long will it take her to bike 20 miles? Translating algebraic equations.
Answers
Answer:
1,6
Step-by-step explanation:
you can use proportion:
1-12
x-20
x=1*20/12
x=1,6
y varies directly as x.x= 1/2 and y= 5/4. Find x when y= 10.
x= ?
Answers
Answer:
X=4Step-by-step explanation:
x=1/2=2/4
y=5/4
y=2.5x
10/2.5=4
so x=4
The area of the triangle below is 8.91 square inches. What is the length of the base?
2.2 in is the height
Answers
Answer:
8.1 inches
Step-by-step explanation:
Area of a triangle = ½ × base × height = Area
Rearranged =
[tex] \frac{area}{ \frac{1}{2} \times height} [/tex]
Base is the length by the way.
[tex] \frac{8.91}{ \frac{1}{2} \times 2.2 } [/tex]
=8.1 inches
Answer:
Then answer is 8.1 inches ;)
Given the equation y=3(2)* + 2, what is the value of y when x = 4?
A. 8
B. 50
C. 256
D. 770
Answers
Answer: It will be 50
Step-by-step explanation:
I need help please A. The relationship is linear because each Y-value is two more than the value before. B. The relationship is linear because each y-value is two times the value before it. C. The relationship is exponential because each y-value is two more than the value before it. D. The relationship is exponential because each y-value is two times the value before it.
Answers
Answer:
D) the relationship is exponential because each y-value is two times the value before
Step-by-step explanation:
A and B are out because this graph is not a linear graph. D is out because that explanation represents a linear graph. An exponential equation will always multiply the value before it, not add.
(08.01)
Two friends went to get ice cream sundaes. They each chose a flavor of ice cream from a list of vanilla and chocolate and toppings from a list of hot fudge,
strawberries, sprinkles, peanuts, and whipped cream. Use the sets below describing their choices and find B'
Let A = {vanilla, chocolate, hot fudge, strawberries, sprinkles, peanuts, whipped cream}
Let B = {vanilla, hot fudge, sprinkles, whipped cream}
Let C = {chocolate, hot fudge, peanuts, whipped cream}
Answers
Answer:
A
Step-by-step explanation:
njsusnhshbwhjkahbkans
Question 5 of 10
A 90% confidence interval is found to be (32, 48). What is the margin of error?
A. 14.4
B. 7.2
C. 8
D. 16
SUBMIT
Answers
Answer:
Your correct answer is C. 8
Step-by-step explanation:
I have taken this test just recently and I can assure you that it is the correct answer.
geometry: find the value of x. Round to the nearest tenth. How do I do this? screenshot attached
Answers
Answer:
[tex]\boxed {\boxed {\sf x \approx 105.3}}[/tex]
Step-by-step explanation:
To solve for x, remember the right triangle trigonometry ratios (soh-cah-toa).
sinθ= opposite/hypotenuse cosθ= adjacent/hypotenuse tanθ= opposite/adjacentIf we look at the angle given (θ), then we see that 36 is adjacent or next to the 70° angle. x is the hypotenuse because it is opposite the right angle. So, we have to use cosine (adjacent and hypotenuse).
[tex]cos (\theta)=\frac {adjacent}{hypotenuse}[/tex]
[tex]cos(70)=\frac{36}{x}[/tex]
Cross multiply. (Multiply the first numerator by the second denominator. Then, multiply the first denominator by the second numerator).
[tex]\frac{cos(70)}{1}=\frac{36}{x}[/tex]
[tex]cos(70)*x= 36[/tex]
Since we want to solve for x, we must isolate the variable. Divide both sides by the cosine of 70.
[tex]\frac{cos(70)*x}{cos(70)}=\frac{ 36}{cos(70)}\\x= 105.2569584[/tex]
Round to the nearest tenth. The 5 in the hundredth place tells us to round the 2 to a 3.
[tex]x \approx 105.3[/tex]
x is about 105.3
4. A rectangle has length 3x + 4 feet. Its width is 7x feet. What is an expression in simplest form for the perimeter of the rectangle?
Answers
Answer:
2(3x+4)=P(perimeter)
Step-by-step explanation:
what I did was:
write out the expression 3x+4+7xcombine like terms in this case it's 3x and 7x10x+4put it in parentheses and put a 2 on the left side indicating distributive property for the equationit should look like this so far 2(10x+4)and you need to add what you are trying to find, so add =p to the right of the equationequation should look like this: 2(10x+4)=PPLEAS HELP
The measures 2^3 , 4, and 2^7 create a right triangle.
True
false
Answers
Answer: true
Step-by-step explanation: they are all equivalent
Answer:
False
Step-by-step explanation:
A local water park has two types of season passes. Plan A costs a one-time fee of $125 for admission plus $8 for parking every trip. Plan B costs a one-
time fee of $41 for parking plus $20 for admission every trip. How many visits must a person make for plan A and plan B to be equal in value?
O4 visits
O 14 visits
08 visits
07 visits
Answers
Answer:
40+8X=50+23X
8X-23X=50-140
-15X=-90
X=-90/-15
X=7 TRIPS IS THE ANSWER.
PROOF:
140+8*6=50+23*6
140+48=50+138
188=188
I really need help! will give brainliest!!
Answers
Dilated by factor of 4 means enlarged by 4 ( multiply by 4)
The angle stays the same no matter how much you increase or decrease the size
And AC= 5 x4= 20
Gene is creating a rectangular prism. The base of his prism is shown below. He plans to have a height of 5 cubes.
Answers
Answer:
30
Step-by-step explanation:
b×h
6×5=30
gggffcguhh
Translate the sentence into an inequality.
A number increased by 2 is greater than or equal to 19.
Answers
Answer:
X + 2 [tex]\geq \\[/tex] 19
Step-by-step explanation:
a number ur going to represent with a variable x and increased by 2 means + 2 so x + 2 and when it say greater than or equal to remember that it always opens to the lager number or x + 2 and has a line underneath to represent the or equal to.
If e.g Lawrence had 2 braincells and lost 3 how many would lawrence have?
Answers
Answer:
0?
Step-by-step explanation:
i think?
Select whether the triangle is inscribed in the circle, circumscribed about the circle, or neither.
inscribed in the circle
circumscribed about the circle
neither
Answers
The correct answer is neither
Factor the following expression, and verify that the factored expression is equivalent to the original
16x²-8x-3
Answers
Answer:
Final answer
(4X+1)(4X-3)
Which set of measurements would not create a triangle?
A. 9 in., 8 in., 16 in.
B. 11 in., 12 in., 22 in.
C. 14 in., 6 in., 20 in.
D. 3 in., 8 in., 6 in.
Answers
In this figure, angles R and S are complementary. Find the measure of angle S.
Answers
Answer:
S = 28 degrees
Step-by-step explanation:
The given angles are R = 62 and Q = 90 since there's the square showing its a right angle.
It says that R and S are complimentary which means together their total is 90 degrees. So there are two ways to do this;
R + S = 90
62 + S = 90
-62 -62
S = 28
OR
R + S + Q = 180
62 + S + 90 = 180
152 + S = 180
-152 -152
S= 28
Answer:
The answer I got was 28°
Step-by-step explanation:
1. Triangles add up to 180°
2. The "square" in the triangle means that angle is equal to 90°
3. Add the 90° angle with the 62° angle
4. Subtract the answer (152°) from the total (180°)
5. The answer is 28°
HAVE A NICE DAY! :D
I give you brainless if you get it right
Answers
Can someone help me with this question please :) (University)
Answers
Answer:
(-5 1 0 0) and (-3 0 1 0)
Step-by-step explanation:
Based on my memory, you can use the dot product to find orthogonality meaning
u1 . u2 = 0
In this case, we let u be the arbitrary vector represented by (x y z w)
u . (1 5 3 0) can be expressed as an equation given by:
{(x y z w) | x + 5y + 3z + 0w= 0}
We solve this equation letting y = s and z = t and x = -5s -3t
Reconstruct this according to their variable will give
(-5 1 0 0)s + (-3 0 1 0)t = 0
So the basis vectors are (-5 1 0 0) and (-3 0 1 0).
Let c1 and c2 be arbitrary constants:
if you solve for c1(-5 1 0 0) + c2(-3 0 1 0) = 0
c1 and c2 should have only trivial solution, which proves its
linear independence and so it forms a basis vector space.
Consider this function:
f(x) = -2(x + 3)(x - 7).
When graphed, the function will have x-intercepts at and
Write the left x-intercept first. Write the x-intercepts as ordered pairs: (a,b).
Answers
Answer:
-5 +7x equal 12x
Step-by-step explanation:
add and complete
The x-intercepts of the function f(x) are:
Left x-intercept: (-3, 0)
Right x-intercept: (7, 0)
Given is a function, f(x) = -2(x + 3)(x - 7).
We need to find the x-intercept of the function,
To find the x-intercepts of the function f(x), we set f(x) equal to zero and solve for x:
-2(x + 3)(x - 7) = 0
Now, we can use the zero product property, which states that if a product of factors is equal to zero, then at least one of the factors must be zero.
So, we have two cases to consider:
Case 1: x + 3 = 0
Solving this equation, we subtract 3 from both sides:
x = -3
Case 2: x - 7 = 0
Solving this equation, we add 7 to both sides:
x = 7
Therefore, the x-intercepts of the function f(x) are -3 and 7.
Writing them as ordered pairs, we have:
Left x-intercept: (-3, 0)
Right x-intercept: (7, 0)
Learn more about x-intercepts click;
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Penelope is going to invest $23,000 and leave it in an account for 11 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Penelope to end up with $41,000?
Answers
Answer:
5.3%
Step-by-step explanation: answer fo
r delta math
two questions please help
Answers
1.) 2,4
2.) all whole numbers
Explanation in photo below
Find the simplified product where sqrt 5x ( sqrt 8x^2 - 2 sqrt x)
Answers
Answer:
D is your answer
Step-by-step explanation:
Just did it and it was right : )
Also for anyone else who needs the other answers they are as follows:
1. D. [tex]6x^4[/tex] then C. [tex]3x^4[/tex]
2. B. [tex]-30x^2 \sqrt{2x}[/tex] then C. [tex]4x^4^3 \sqrt{2x^2}[/tex]
3. D. [tex]2x\sqrt{10x} - 2x \sqrt{5}[/tex]
4. B. [tex]32x^2 \sqrt[3]{2x} -8x^3[/tex]
5. A. [tex]-22[/tex] then C. [tex]4x^4 \sqrt{5} +2x^2 \sqrt{3x} + 4x^3 \sqrt{30} +6x \sqrt{2x}[/tex]
6. B. [tex]x^\frac{2}{12}* y^\frac{9}{12}[/tex] then C. [tex]\sqrt[12]{x^2*y^9}[/tex]
These answers are for!!!!NC Math 2 -22092x0
Multiplying Radicals
Assignment
Due March 11
Multiplying radicals with like indices.
The solution of the given equation will be 2√5x(√2-1).
What is an equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
The expression will be solved as below:-
= √5x ( √8x² - 2√x)
= √5x ( 2√2x - 2√x)
= √5x(√2-1)(2√x)
= 2√5x(√2-1).
Therefore the solution of the given equation will be 2√5x(√2-1).
To know more about equations follow
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