Answer:
x ≤ 12.83
(Any number under or equal to 12.8333...)
Step-by-step explanation:
154 ≥ 12x
12.833.... ≥ x
x ≤ 12.83
Evaluate the expression for y=3.8, y=5, and y=5.6.
y=4
Answer:(a) x - 0.7 = 1.5
Step-by-step explanation:
Determine whether each of the following is a solution of x − 0.7 = 1.5: (a) x = 1 (b) x = −0.8 (c) x = 2. Step 1. Substitute the number for the variable in the equation.
Step 2. Simplify the expressions on both sides of the equation.
Step 3. Determine whether the resulting equation is true.
If so, the number is a solution.
If not, the number is not a solution.
ayee someone help pleasee
Answer:
Both are solutions of x.
Step-by-step explanation:
[tex]x^{2} =49[/tex]
For [tex]x^{2} =f(a)[/tex] the solutions are [tex]x=\sqrt{f(a)} ,-\sqrt{f(a)}[/tex]
[tex]x=\sqrt{49} ,x=-\sqrt{49}[/tex]
[tex]\sqrt{49}[/tex]
Factor the number: [tex]49=7^{2}[/tex]
Apply radical rule: [tex]\sqrt[n]{x^n} =a[/tex]
[tex]\sqrt{7^2} =7[/tex]
=7
[tex]-\sqrt{49}[/tex]
Factor the number: [tex]49=-7^2[/tex]
Apply radical rule: [tex]\sqrt[n]{x^n} =a[/tex]
[tex]-\sqrt{7^2}=7[/tex]
[tex]=-7[/tex]
Evaluate 3(a - c)² - ac for a = -3 and c = 6.
Answer:
Answer is 261
Step-by-step explanation:
You have to plug in the number into the variable.
* 3(-3-6)^2 -(-3) (6)
> 3(-9)^2 +3 (6)
> 3(81) + 18
> 243 + 18
> 261
I hope this is the right answer.
Simplify the expression
4W - 4W=
Answer:
4W - 4W = 0
Step-by-step explanation:
Given expression,
→ 4W - 4W
Simplifying the expression,
→ 4W - 4W
→ 0W = 0
Hence, the answer is 0.
It’s not 4 feet of snow that is 60% of snow that will fall. how much snow will fall??
Answer:
60% of snow
Step-by-step explanation:
4. What fraction of this circle is shaded?
Answer:
1 / 3 is the answer
hope this answer will help you.
have a great time
Answer:
1/3
Step-by-step explanation:It's pretty easy, if you look, there is only three(3)
boxes, and one of them is shaded. Soo, you can do that you can solve this question!!!
Will Give Brainliest, Question is attached.
Answer:
The answer is in the photo
Hope i helped. :)
Btw it was cut off
Step-by-step explanation:
What are the vertex and range of y = x + 1 + 3?
(0, 4); -
(0, 4); 3 ≤y <∞
(-1,3); -
O(-1, 3); 3 ≤y<∞
The vertex and range of the given function is y = x + 1 + 3 is (0, 4); - (0, 4); 3 ≤ y ≤ ∞.
What is Domain and Range?The Domain of a function is the set of all possible values that a function satisfies.
The range of a function is the set of values that the function assumes. This set is the values that the function shoots out after we put an x value in.
Now the given function is,
y = (x + 1) + 3
or, y = x + 4
Now to find the y coordinate of vertex,
put x = 0 in the given function is,
Thus, we get
y = 4
So, the vertex of the given function is
y = x + 1 + 3 is (0, 4); - (0, 4).
Now for range,Put (x + 1) = 0 in the given function
Thus we get,
y ≤ ∞
and y ≥ 3
Thus the range of the given function will be,3 ≤ y ≤ ∞
Thus, the vertex and range of the given function is y = x + 1 + 3 is (0, 4); - (0, 4); 3 ≤ y ≤ ∞
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Jeremy's work to solve the equation
-3x+1
2
2x – 10 is shown below.
Step
Work
Justification
1
-3.1+1
2
= 2x – 10
2
-3x +1 = 4x – 20
3
–7x + 1 = –20
4
72 = -21
5
= 3
Identify the mathematical properties Jeremy uses to justify his steps.
Answer:
C
Step-by-step explanation:
The following are mathematical properties that justifies each step Jeremy made:
✔️Step 1: Given
Jeremy simply stated the given equation.
✔️Step 2: Multiplication Property of Equality
Jeremy multiplied both sides of the equation by 2
✔️Step 3: Subtraction property of equality
4x was subtracted from both sides
✔️Step 4: Subtraction property of equality
1 was subtracted from both sides
✔️Step 5: Division property of equality
Both sides were divided by -7
Marine life depends on the microscopic plant life that exists in the photic zone, a zone that goes to a depth where only 1% of surface light remains. In some waters with a great deal of sediment, the photic zone may go down only 15 to 20 feet. In some murky harbors, the intensity of light d feet below the surface is given approximately by I= I0e^-0.23d
The percentage of the surface light :
[tex]\frac{I}{I_0} \times 100=27.25 \%[/tex]
[tex]$\frac{I}{I_0} \times 100=7.43 \%$[/tex]
This is further explained below.
What percentage of the surface light will reach a depth of (A) 5 feet? (B) 10 feet?Generally, the equation for is mathematically given as
We have; the intensity of light d ft below the surface given by
I=I_0 [tex]e^{-0.26 d}[/tex]
Where; I_0= Intensity of the light at the surface.
d= depth (in feet).
A)
d=5 \mathrm{ft}:
[tex]\quad I=I_0 \cdot e^{-0.26 \times 5} \\\\I=I_0 \times e^{-1 \cdot 30}$[/tex]
[tex]$\left(\frac{I}{I_0}\right)=e^{-1.30}=0.27253[/tex]
In of form:
[tex]\frac{I}{I_0} \times 100=27.25 \%[/tex]
b)
[tex]$d=10 \mathrm{ft}:[/tex]
[tex]\quad \mathrm{J}=\mathrm{I}_0 e^{-0.26 \times 10}\\\\=I_0 e^{-2.60}$[/tex]
[tex]$\left(\frac{I}{I_0}\right)[/tex]=e^{-2.60}
[tex]$\left(\frac{I}{I_0}\right)[/tex]=0.07427
In form: [tex]$\frac{I}{I_0} \times 100=7.43 \%$[/tex]
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CQ
Marine life is dependent upon the microscopic plant life that exists in the photic zone, a zone that goes to a depth where about 1% of the surface light remains. In some waters with a great deal of sediment, the photic zone may go down only 15 or 20 feet. In some murky harbors, the intensity of light d feet below the surface is given by I=Ioe^-0.26d,Where Io is the intensity of light at the surface. What percentage of the surface light will reach a depth of (A) 5 feet? (B) 10 feet?
A plant grows 0.5 inches each week. The plant was 2 inches tall to start. How tall will the plant be after 1 month (4 weeks)?
Answer:
4
Step-by-step explanation:
0.5 inches * 4 weeks = 2 inches after 1 month
Then add the 2 inches ( how tall it was before)
2 In + 2 In = 4 inches
WILL GIVE BRAINLEST plz help mee
Answer:
-2 3/4
Step-by-step explanation:
i gotchu
allison withdrew $7 from her savings account every day. if she continued to do this for a total of 5 days, find the integer that would represent the change in the value of her savings account.
Answer:
umm im not sure if this is the answer but i believe it would be -$35
Step-by-step explanation: -7 x 5
What is the value of the expression 8(-6.3)
Answer:
-50.4
Step-by-step explanation:
3) If the values are equal to zero, or increase and decrease, or stay the same, the variables have a(n) ________ relationship.
undefined
direct
inverse
Answer: it is 4 over 8 and undefined as the direct inverse of mathematical theory of bill nye the science guy *music starts playing*
Step-by-step explanation:
Guys helpppp please
Answer:
See below
Step-by-step explanation:
Anything with an ODD number of negatives makes a negative
A TWO negatives <<<<nope
B two negatives
C FIVE negatives <<<<< yep
D Three negatives <<<<<< yep
E Four negatives <<<<< nope
Remember ....a negative sign in front
- (6)(-4)(3) is just like (-1)(6)(-4)(3)
$
Question 4
Ralph deposited $10,500 in an CD account that pays 1.75% simple interest for 30 months.
How much interest will this CD have earned after 30 months?
$
What is the new balance at maturity (30 months)?
2 pts
The CD will earn $459.375 interest in 30 months and the balance at maturity will be $10,959.375.
Here, we are given that Ralph deposited $10,500 in an CD account that pays 1.75% simple interest for 30 months.
Simple interest can be calculated using the following formula-
Simple interest = Principle(P) × Time(t) × Rate(r)/ 100
Here,
P = 10,500
t = 30/12
r = 1.75
Thus,
Simple interest = 10,500 × 30/12 × 1.75/ 100
= 10,500 × 5/2 × 175/ 10000
= 10,500 × 5/2 × 7/ 400
= 26,250 × 7/ 400
= $459.375
Thus, the CD will earn $459.375 interest in 30 months.
Balance on maturity will be-
$10,500+ $459.375 = 10,959.375
Thus, the balance at maturity will be $10,959.375.
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Instructions: Find the value of the trigonometric ratio. Make sure to simplify the fraction if needed.
Answer: [tex]\sin C = \frac{3}{5}[/tex]
============================================
Work Shown:
[tex]\sin(\text{angle}) = \frac{\text{opposite}}{\text{hypotenuse}}\\\\\sin(C) = \frac{\text{AB}}{\text{AC}}\\\\\sin(C) = \frac{24}{40}\\\\\sin(C) = \frac{8*3}{8*5}\\\\\sin(C) = \frac{3}{5}\\\\[/tex]
can someone help me?
Answer:
AD = 100
Step-by-step explanation:
50/cos60 = 100
For what values of the variable x, is the fraction x-3/5 equal to: 1
A textbook store sold a combined total of 232 physics and math textbooks in a week. The number of physics textbooks sold was three times the number of math textbooks sold. How many textbooks of each type were sold?
The number of physics textbook is 174 and maths textbook is 58.
How to calculate the value?Let the number of maths textbook = x
The number of physics textbook = 3x
Therefore, the expression will be:
3x + x = 232
4x = 232
Divide
x = 232/4
x = 58
Physics textbook = 3x = 3 × 58 = 174
Therefore, the number of physics textbook is 174 and maths textbook is 58.
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Is ( ¬ (( ∨ ( ∧ )) ∨ ( → ))) logically equivalent to (¬ ((( ¬ (¬)) ∨ ) ∨ ))?
Answer:
of course
Step-by-step explanation:
On the surface, it seems easy. Can you think of the integers for x, y, and z so that x³+y³+z³=8? Sure. One answer is x = 1, y = -1, and z = 2. But what about the integers for x, y, and z so that x³+y³+z³=42?
That turned out to be much harder—as in, no one was able to solve for those integers for 65 years until a supercomputer finally came up with the solution to 42. (For the record: x = -80538738812075974, y = 80435758145817515, and z = 12602123297335631. Obviously.)
Given:
p: x is greater than 20.
q: x is divisible by 5
What is a value of x that makes p or q true?
16
99
19
12
Answer:
99
Step-by-step explanation:
Since the question is or, we only need to answer one. For q, there is of course no answer that will not end the division in decimals. So lets move on to p. The only number that is greater than 20 is 99. Also, 99 is divisible by 5, it will just end in decimals. So the answer is 99.
Please help I don’t understand this!!!!! Please actually help!!
Answer:
4.
.....................
Answer: Option 4
Step-by-step explanation:
2x+5y=20
5y=-2x+20
y=-2x/5 + 4 ==> y-int: (0, 4) ==> Option 4
Mark shoveled 18 ton of gravel in 14 hour. What was his average rate of shoveling in tons per hour?
Answer:
1.2
Step-by-step explanation:
2 Justifying Steps in Solving an Equation Suppose that
points A, B, and C are collinear with point B between
points A and C. Solve for x if AC = 21, AB = 15 - x, and
BC= 4 + 2x. Justify each step.
AB + BC = AC
=
+x=
२५
=
Simplify.
A.
15-x
B
4 + 2x
C
The value of x = 2, the length of AB is 13 and BC is 8.
A, B and C are collinear with point B between points A and C.
A___________.__________C
B
AC = 21 , AB = 15 -x and BC = 4 + 2x
As the point, B is the mid-point of the line AC
Therefore we get
AC = AB + BC
AC = 2AB = 2BC
Therefore we get
AC = AB + BC
21 = 15 -x + 4 + 2x
21 = 19 + x
x = 2
As AB = 15 - x
Now put the value of x in the equation, by putting the value of x = 2.
AB = 15 - 2
= 13
BC = 4 + 2x
= 4 + 2×2
= 4 + 4
= 8
Therefore the value of x = 2, and the length of AB = 13 and BC = 8.
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6th grade math help me please
Answer:
i think -50
Step-by-step explanation:
im not 100% sure tho
help please will give brainlest
I need help please!:D
Answer:
30
Step-by-step explanation:
Answer: It would be 30
Step-by-step explanation: When you divide 8 by 240, you get 30, divide the inside of the bar by the outside for questions like these, 240/8.
y=4x+3 table of ordered pairs
Answer:
X:1 2 3 4 5 Y:7 11 15 19 23.
Step-by-step explanation:
We just need to put in the values of x into the equation: y = 4x + 3.
x = 1:
y = 4(1) + 3
= 4 + 3
y = 7
x = 2:
y = 4(2) + 3
= 8 + 3
y = 11
x = 3:
y = 4(3) + 3
= 12 + 3
y = 15
x = 4:
y = 4(4) + 3
= 16 + 3
y = 19
x = 5:
y = 4(5) + 3
= 20 + 3
y = 23