Answer:
It’s either a or b on edge
Step-by-step explanation:
How do you use substitution to solve a system of linear equations?
Answer:
Step 1 : First, solve one linear equation for y in terms of x .
Step 2 : Then substitute that expression for y in the other linear equation. ...
Step 3 : Solve this, and you have the x -coordinate of the intersection.
Step 4 : Then plug in x to either equation to find the corresponding y -coordinate.
(hope this helps :) )
if an object has a density of 3.6g/ml and you put it into water, will it sink or float?
Answer:
Sink
Step-by-step explanation:
We need to find if an object with a certain density will float or sink in water.
The object will sink in water.
The density of the object is 3.6 g/mL
The density of water is generally [tex]1000\ \text{kg/m}^3[/tex]
An object which has a density more than the liquid it is in then the object will sink.
Let us convert the density of the object to [tex]\text{kg/m}^3[/tex]
[tex]1\ \text{g}=10^{-3}\ \text{kg}[/tex]
[tex]1\ \text{mL}=10^{-6}\ \text{m}^3[/tex]
[tex]1\ \text{g/mL}=\dfrac{10^{-3}}{10^{-6}}=10^3\ \text{kg/m}^3[/tex]
[tex]3.6\ \text{g/mL}=3.6\times 10^3=3600\ \text{kg/m}^3[/tex]
The density of the object [tex](3600\ \text{kg/m}^3)[/tex] is greater than that of water [tex](1000\ \text{kg/m}^3)[/tex].
Hence, the object will sink.
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Simplify: (5x2 - 9x + 3) + (4x2 + 4x - 12)
(1) 9x2 + 5x - 9
2) 9x2 - 5x + 15
3) 9x² - 5x-9
4) 9x2 - 13x - 9
Answer:
3) 9x² - 5x - 9
Step-by-step explanation:
Combine like terms
5x² - 9x + 3 + 4x² + 4x - 12 = 5x² + 4x² - 9x + 4x + 3 - 12
= 9x² - 5x - 9
Approximately 10% of the population is left-
handed. If a school had a student population
of 1200 students, how many of them could
you expect to be right-handed?
Answer:
1080
Step-by-step explanation:
if 10 percent are left handed that means that 90 percent are right handed
number of people that are right handed = 0.9 × 1200number of people that are right handed = 1080Answer:
120
Step-by-step explanation:
10%=0.1
1200*0.1=120
Which of the following is the equation of an ellipse centered at (4,-1) having a
horizontal minor axis of length 14 and a major axis of length 20?
Answer:
B for me
Step-by-step explanation:
Yun lang po correct me if iam wrong
The Required equation for the ellipse is given by [tex]\frac{(x-4)^2}{49}+\frac{y+1}{100} = 1[/tex] Option B. is correct
What is an ellipse?Ellipse is cross-section part of a cone structure when cutting it out a horizontal cross-section of a cone.
(x-h)^2/a^2 + (x-k)^2/b^2 = 1
(h,k) = centre of the ellipse.
a, b = semi minor or major axis,
[tex]\frac{(x-4)^2}{49}+\frac{y+1}{100} = 1[/tex]
thus, the required equation of ellipse is given by [tex]\frac{(x-4)^2}{49}+\frac{y+1}{100} = 1[/tex].
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What is the value of the 6 in the number 734,906,257 need fasttt
Answer:
6 thousands
Step-by-step explanation:
hope it helps
could somebody help me on the 2 question please
Answer:
on question 2 the one which you need to write is -20 degrees bcz it's colder than -10 degreesStep-by-step explanation:
where is the question 1
+this sentence :" is -20 degrees bcz it's colder than -10 degrees "is a 2answer sentence
hope this helps
On a test, Jim answered 28 problems correctly. He answered 80% of the questions correctly.
How many questions were on the test?
Answer:
35
Step-by-step explanation:
P(x) = 2x3 – x2 + 4x + 5 is divided by x + 2. Choose the correct option from each drop-down menu.
When P(x) is divided by x + 2, the remainder is [ ] P(–2) = [ ]. The Remainder Theorem is [verfied/not verified] ]
The remainder of the division of polynomial, P(x) = 2x3 – x2 + 4x + 5 by (x + 2) is; -23
The remainder of the division of the polynomial, P(x) = 2x3 – x2 + 4x + 5 by (x + 2) can be evaluated by the remainder theorem.
This involves adding evaluating the value of the polynomial at, x = -2.
Since, (x +2) is the Divisor, we evaluate, P(x) at x = -2Therefore, we have;
P(-2) = 2 ×(-2)³ -(-2)² + 4(-2) + 5P(-2) = -16 -4 -8 +5P(-2) = -23.Therefore, the remainder when P(x) = 2x3 – x2 + 4x + 5 is divided by (x + 2) is; -23
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Which point on the graph best represents the location of left parenthesis minus 4.5 comma space minus 7 right parenthesis ?
Answer:
The answer would be A which is L
Answer:
so its A?
Step-by-step explanation:
Is someone kind and available enough to do this work for me
I need it really
Answer:
D. 40.0km
Step-by-step explanation:
When rounding to 3 significant figures, we will have to look at the 4th significant figure. If that figure is 1-4, you round the 3rd figure down. If that figure is 5-9, you round the 3rd figure up.
In this case, the 3rd figure is the tenth 9 and the 4th figure is the hundredth 7.
Since 7 is from 5-9, you round the tenth 9 up. This adds one whole to 39, which makes it 40. You also need to keep 3 significant figures so the decimal zeros are significant. Thus, the answer is 40.0km
Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!
p = √24
Step-by-step explanation:
5² = 1² + p²
25 - 1 = p²
p² = 24
p = √24
Solve the equation
3/2x - 2 > 7
Kristine and her friends are raising money for charity. They hope to raise $900 to reach their goal. So far, they have $780. How much more do they need to collect in order to reach their goal?
Answer:
$120
Step-by-step explanation:
They have raised $780 and need to raise $900.
(Total amount they need to raise) - (total amount they raised) = (how much more they need to collect)
$900 - $780 = $120
Find the rate of change
Pls help thx
Answer:3
Step-by-step explanation:
Go up from one point to the other and whatever the number comes is the answer.
Transitive Property of Congruence
If MN = LK and LK = OP, then
Answer:
If MN=LK and LK=OP, then MN= OP
Answer:
MN = OP
Step-by-step explanation:
I need help wit this
Answer:
75
Step-by-step explanation:
\+_+/
Which of the following is equivalent to 5x - x + 3x = 30? A 8x = 30 o 7x = 30 с 3x + 5= 30 x = 30
Answer:
Step-by-step explanation:
5x -x + 3x =30, first you combine like terms 5x + 3x-x=30
8x-x =30
8-1=7
7x=30
Answer:
7x=30
Step-by-step explanation:
7x=30
On Saturday, a souvenir shop had 125 customers. Sixty-four percent of the customers paid with a credit card. The other customers paid with cash. How many customers paid with cash?
Answer:
45 customers
Step-by-step explanation:
Given
Total number of customers = 125
percent that paid with credit card = 64%
Customers that paid with credit card = 64% * 125
Customers that paid with credit card = 0.64 * 125 = 80
Number of customers that paid with cash = 125 - 80
Number of customers that paid with cash = 45 customers
All 7 crawfish in Gumbo's family love hot dogs. Gumbo's mom made 20 hot dogs for
supper one night. Is that enough for each of them to have 3 hot dogs?
No
Yes
Answer:
no
Step-by-step explanation:
if there is 7 of them and each have 3 that would call for 21 hot dogs
What is electrical energy converted to inside a toaster?
A. thermal energy and light
B. nuclear energy
C. chemical energy
D. kinetic energy
Given the student is a "Moderate" what is the probability that the student is male? Round your answer to three decimal places if necessary.
a. 0.454
c. 0.47
b. 0.614
d. 0.386
Answer: B
Step-by-step explanation:
F(X) = 5(X) - 6, Find the value of X if F(X) = 44
Answer:
x=10
Step-by-step explanation:
just use ur brain
Please help help help !!!!!!!1
Please help!
Sin A =
Sin C =
Cos A =
Cos C =
I’ll give brainliest!!
Answer:
sin A= 3/5
sin C= 4/5
cos A= 4/5
cos C= 3/5
Step-by-step explanation:
Please see the attached picture for the full solution.
Graph y < x and y ≥ 4x + 2
Answer:
Image is attached.
Step-by-step explanation:
Remember since the blue line is greater than, instead of being dashed like the red line, it's solid.
The following rectangle has an area of 3x^2-5x-12. What are the possible side lengths, in terms of x? Explain your answer and justify how you know that the sides you found are possible lengths
Answer:
the possible side lengths:
3x+4 and x-3
Step-by-step explanation:
factorize the the expression and you will get two expressions in terms of x. those expressions are the lengths of the rectangle
[tex]3 {x}^{2} - 5x - 12[/tex]
1) write -5x as a difference
[tex]3 {x}^{2} + 4x - 9x - 12[/tex]
2) factor out x from the expression 3x²+4x
[tex]x(3x + 4) - 9x - 12[/tex]
3) factor out -3 from the expression -9x-12
[tex]x(3x + 4) - 3(3x + 4)[/tex]
4) factor out 3x+4 from the expression
[tex](3x + 4)( x - 3)[/tex]
the possible lengths are 3x+4 and x-3
to check whether the answer is correct, you can just multiply the both lengths using the area of rectangle formulae
area of rectangle formulae
[tex]length \times height[/tex]
(3x+4)(x-3)
= 3x²-9x+4x-12
= 3x²-5x-12 ( proven )
Find the value of x.
3x-10
25
X+15
Identify the parent function. 5 --5
a absolute
b reciprocal
c cube root
d square root
Step-by-step explanation:
For an absolute value function, the graph will look like an arrow with a sharp inflection point.
Reciprocal function will tend towards a limit when stretched to infinity.
Cube root and square root functions do not tend towards infinity at x = 0, because it is either 0 or the constant value.
The best answer here is Reciprocal. (B)
Answer:
b reciprocalStep-by-step explanation:
The graphed is the function y = 1/x, it is an odd function and the graph is hyperbola
The function is reciprocal
Correct option is B
Jason purchased 3 popcorns and 2 soft drinks for a total of $15.50.
Ann purchased 4 popcorns and 3 soft drinks for a total of $22.00.
how much does a single soft drink cost?