Answer:
False
Step-by-step explanation:
Find the solution of:
2x + 3y = -7 --› eqn. 1
-x = 2y --› eqn. 2
Rewrite equation 2
-x = 2y --› eqn. 2
Divide both sides by -1
x = -2y
Substitute x = -2y in equation 1.
2x + 3y = -7 --› eqn. 1
2(-2y) + 3y = -7
-4y + 3y = -7
-y = -7
Divide both sides by -1
y = 7
If y = 7, then (1, -3) cannot be the solution of the system of equations.
can you help I'm confused
Answer:
x ≤ 5
Step-by-step explanation:
Answer:
x <= 5
Step-by-step explanation:
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Find the simple interest rate of a loan of $5,000 that is made for three years and requires $1,762.50 in interes
Answer:
11.75%
Step-by-step explanation:
The formula for Simple Interest is given as:
I = PRT
Where in the question
I = Interest = $,1762.5
P = Principal = $5,000
T = Time= 3 years
R = Simple Interest rate ??
To solve for R, the formula is given as:
R = I/PT
R = $1,762.5/5,000 × 3
R = 0.1175
Converting to percentage
= 0.1175 × 100
= 11.75%
what is the answer to this question i need help
Answer:
[tex]2\sqrt{2}[/tex]
Step-by-step explanation:
h(10) = 2(10) - 8
= 12
g(h(10)) = [tex]\sqrt{(12)-4}[/tex]
= [tex]\sqrt{8}[/tex]
= [tex]2\sqrt{2}[/tex]
From a population of 500 elements, a sample of 225 elements is selected. It is known that the variance of the population is 900. The standard error of the mean is approximately
Answer:
standard error of the mean (S.E) = 0.06
Step-by-step explanation:
Explanation:-
Given sample size 'n' = 500
Given variance of the Population = 900
The standard deviation of the Population = √900 = 30
The standard error of the mean is determined by
[tex]S.E = \frac{S.D}{\sqrt{n} } = \frac{30}{500} = 0.06[/tex]
Will give brain list!!!!!!!!
Using the order of operations, what should be done first to evaluate 62 +10-(-5)(3) - 5?
A. Subtract 5 from 3
B. Divide 10 by -5
C. Add 6 and 10
D. Evaluate 62
Answer:
can you try and help me with this please? https://brainly.com/question/22223449
Step-by-step explanation:
The order of operations is PEMDAS -
Parenthesis
Exponents
Multiply
Divide
Add
Subtract
So, the first thing would be to solve any parenthesis.
Secondly, you would evaluate the exponent.
From what I can tell, your expression is
(6^2 + 10) / (-5 x 3) - 5
?
In the equivalent ratios 4:7 and 48:x, what is the value of x?
Answer: 84
Step-by-step explanation: 48÷4= 12 so 12 times 7 is 84
Please, please I need this.
find the sum 0.06 + 2.41 .
Answer:
2.47
Step-by-step explanation:
0.06+2.41=
2.47
Answer:
you basically just add both equal 2.47
Is it possible to divide 0 by 127 ?
Answer: It gives you 0 though .
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
Anything divided by 0 is 0; It's like multiplying by 0 as well
Which name describes all of the shapes?
A parallelogram
B. quadrilateral
C. rectangle
D. rhombus
E. trapezoid
Answer:
B
Step-by-step explanation:
A quadrilateral is a shape that has exactly 4 sides.
All of the other shapes have 4 sides but with restrictions
For example, a rhombus has to have equal sides whe a rectangle doesn't
That's why B is the answer.
I hope this helps!!!
Find the inverse function for
Answer:
a. ∛(x+4)/3
Step-by-step explanation:
y = 3x³ -4
step 1: x = 3y³ - 4 (swap x and y)
step 2: 3y³ = x + 4
y³ = (x + 4) / 3
y = ∛(x+4)/3 (solve y)
f⁻¹(x) = ∛(x+4)/3 (inverse notation)
PLEASE HELP I NEED IT
What is an equivalent expression for 1.5(3x + 4) + 0.25(6x + 8)?
Answer:
The equivalent expression is 6x+8.
Step-by-step explanation:
Given expression is:
1.5(3x + 4) + 0.25(6x + 8)
We will solve the expression and combine alike terms.
4.5x + 6 + 1.5x + 2
6x + 8
Therefore,
The equivalent expression is 6x+8.
The equivalent expression is 6x+8 is the correct answer
What is an equivalent expression for 1.5(3x + 4) + 0.25(6x + 8)?
Plzzz be serious and be fast to
Answer:
i think its c
Step-by-step explanation:
Answer:
I believe it's C... I may be wrong though
Step-by-step explanation:
hav a good day :D
Jeff divided his 1,200 stamps equally among 7 stamp albums. Were there any stamps left over?
If so, how many?
Yes; there was 1 stamp left over.
Yes; there were 3 stamps left over.
Yes; there were 10 stamps left over.
No; there were no stamps left over.
Answer:
3 stamps were left over
Step-by-step explanation:
Division
When a number m divides evenly by n the remainder is 0. For example, 120 divides exactly by 30 because 120/30=4 and the remainder is 0.
But 120 does not divide exactly by 50 because 120/50 = 2 and leaves a remainder of 20.
Jeff divided his 1,200 stamps equally among 7 stamp albums. If the division of 1,200 by 7 was exact, there won't be any stamp left over. Let's test it.
1,200/7 is 171.4, obviously is not exact, thus There were stamps left over.
How many?
Multiply the lower integer of division 171 by 7 to get: 171*7 =1,197. This means that 1,200-1,197= 3 stamps were left over
PLEASE HELP !!!!!Factor 16x2 - 6x - 7.
A. (2x + 1)(8x - 7)
B. (4x + 7)(4x - 1)
C. (2x - 1)(8x + 7)
OD. (4x - 7)(4x + 1)
Answer:
Step-by-step explanation:
Here you go mate
Step 1
16x^2-6x-7 Question
Step 2
16x^2-6x-7 Factor
answer
(2x+1)(8x-7)
please help me please please
someone help me pls
Find the length of the missing side.
20 ft
21 ft
The length of the missing side is
ft.
Answer:
c^2 = a^2 +b^2
c^2 = (20 ft)^2 +(21 ft)^2 = 442 ft^2
c = √(442 ft^2) = 21,02 ft
The length of the missing side is 21,02 ft.
Step-by-step explanation:
50a (2-a) when a = 7
Answer:-1750
Step-by-step explanation: Plug in the variables
50*7(2-7)=350(-5)=-1750
WILL GIVE BRAINLIEST!!!
Answer:
x= 5; Segment QR is the mid segment and YW is the base of the triangle. Mid segments are half the length of the base.
Step-by-step explanation:
2x - 3 = (x + 9) ÷ 2 Multiply both sides by 2
(2x - 3) • 2 = x + 9
4x - 6 = x + 9 Add 6 to both sides
4x = x + 9 + 6
4x = x + 15 Subtract x from both sides
4x - x = 15
3x = 15 Divide 3 on both sides
x = 15/3
x = 5
Plzzz help mr plzzz mathhh
Answer:
x = 20
Step-by-step explanation:
First, we need to combine both equations as we know they are create a "straight angle", which is 180 degrees:
2x + 8 + 6x + 12 = 180
Next, we can combine like terms to simplify the equation:
8x + 20 = 180
Now, we can subtract 20 from each side:
8x = 160
Finally, we divide both sides by 8 to find the value of "x":
x = 20
I hope this helps!
-TheBusinessMan
Plzzzzzz help a girl out due in 3 mins iready
Answer:
14 2/3 is the answer. have a good one
A square has sides 5 inches long. what is the approximate length of a diagonal of the square?
Answer:
20
Step-by-step explanation:
5x4= 20
what is 5x5= bc I really need this
Answer:
25
Step-by-step explanation:
5 x 5 = 25
Hey could anyone help me with this question :)
Answer:
cuz i am batman hhhhhhhhhhhh
How many ML are equal to 32 ounces ?
Answer:
946.3529Milliliters
Step-by-step explanation:
Answer:
946.35295 Milliliters
Step-by-step explanation:
I NEED HELP ASAP AS SOON POSSIBLE TODAY I WILL MARK YOU BRAINLIST Combining like terms before Adding or Subtracting: Answer the following question that combines like terms before simplifying using information that you know
2(2x+4)-3x=12
Answers
x=4
x=8
4
12
Answer: 4
Step-by-step explanation:
first you remove the parentheses it should look like this (4x+8-3x=12) then you collect the like terms (like terms have the same variable to the same power) it should look like this(x+8=12). then you move the constant to the right then last you calculate it should look like this x=12-8). then you subtract 12 by 8 and 4 is what you get.
Alicia pays $180 to have cable and wi-fi installed in her home. Each month, she will pay $75 month for her cable
Answer:
In a year she will pay $900
The cost of the installation and a month would be $225
The cost of a year and installation would be $1,080
Step-by-step explanation:
</3 PureBeauty
Anyone completes all of this gets extra points
Answer: can you take a closer picture
Step-by-step explanation:
Prove each of the following statements about integers by proving thecontrapositive of the statement.A. If 3nis even, thennis even.B. Ifx y zis odd, then at least one ofx; yandzis odd.
Answer and Step-by-step explanation:
(A) Suppose 3n is even, this implies that the product of 3n is a multiple of two, let's say 2(3k) where k is a real number. Rearranging that, we have 3(2k), let 2k = n. Therefore, n is even.
(B) Suppose xyz is odd, then let x = 2k, y = 2p + 1 and z = 2q + 1. xyz = 2k(2p + 1)(2q + 1) and this is obviously even since it is a multiple of 2.