Answer:
a. $25 + ($0.20 × 150) = $25 + $30 = $55
b. $145 ÷ $0.20 = 725 miles
Which triangle doesn’t belong?
Answer:
C because it is not a right angle unlike the others
Step-by-step explanation:
Which value of x is in the domain of f(t) = squared x - 7
O A. x= 8
O B. x = 0
C. x= -3
O D. x = 6
SUBMIT
Given:
The given function is:
[tex]f(x)=\sqrt{x-7}[/tex]
To find:
The value of x that is in the domain.
Solution:
Domain is the set of input values.
We have,
[tex]f(x)=\sqrt{x-7}[/tex]
We know that the square root is defined for non negative values. So,
[tex]x-7\geq 0[/tex]
[tex]x\geq 0+7[/tex]
[tex]x\geq 7[/tex]
Thus, the domain of the given function is all real number that are greater than or equal to 7.
In the given options 0, -3, 6 are less than 7 but 8 in option A is the only value that is greater than 7. So, [tex]x=8[/tex] is in the domain of the given function.
Therefore, the correct option is A.
Evaluate 32 + (7 − 2) ⋅ 4 − 6 over 3 . (1 point)
Answer:
50
Step-by-step explanation:
Given:
32 + (7 − 2) ⋅ 4 − 6/3
Using the acronym PEMDAS
P = parenthesis
E = Exponential
M = Multiplication
D = Division
A = Addition
S = Subtraction
32 + (7 − 2) ⋅ 4 − 6/3
= 32 + (5) • 4 - 6/3
= 32 + 20 - 6/3
= 32 + 20 - 2
= 52 - 2
= 50
Therefore,
32 + (7 − 2) ⋅ 4 − 6/3 = 50
Evaluate the expression when m=7 and n=5.
8n+m
what is the answer?
Answer:
47
Step-by-step explanation:
8n + m =
8(5) + m =
40 + 7 = 47
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
47
Step-by-step explanation:
8n + m
n = 5
m = 7
Plug each variable's value into the equation.
8(5) + (7)
Multiply.
40 + (7)
Add.
47
Hope this helps!
pls help me solve any of these pls show how you got the answer to the question you chose
1. Provide an example of a variable term.
2. Provide an example of a constant term.
3. When looking at an expression and/or equation, how can we tell that we need to distribute?
4. When solving an equation, if you get the solution, x=0, how many solutions to the equation are there?
(One solution, no solution, or infinite solutions)
5. When solving an equation, if you get 5 = 11, what does this mean? (One solution, no solution, or infinite
solutions)
6. When solving an equation, if you get 5 = 5, what does this mean? (One solution, no solution, or infinite
solutions)
Answer:
Step-by-step explanation:
1) a variable term contains a variable. If x is a variable
5x is an example of a variable therm
2) a constant therm is not a variable
3 is an example
3) for example when a number multiply a sum or a difference between a constant and a variable
Example:
2(x-3) = 5(x+4)
4) one solution: only if x is equal to 0 the equation is true
5) no solution: the equation can’t be true for ever value of the variable
6) infinite solutions: the equation is ever true for every value of the variable
write down a pair of integers whose sum is 0
Answer:
this might help
Step-by-step explanation:
2-2=0
integers
the diameter of a circle is 4 inches. What is the area ? Give the exact answer in the simplest form.
Answer:
50.27
Step-by-step explanation:
the formula the find the are of a cricle is A = pie r^2
pi · 4^2
Answer:
4π
Step-by-step explanation:
A(Circle) = πr²
r = d/2 = 4/2 = 2
A(Circle) = π(2)² = 4π
Triangle XYZ is pictured below.
Select the ratio that represents sin(x)
A) 21/29
B) 29/21
C) 20/29
D) 20/21
E) 29/20
F) 21/20
Answer:
C
Step-by-step explanation:
sine uses opposite over hypotenuse
the opposite of x is 20 and the hypotenuse is 29
so the answer is 20/29
Vijay started out with 1 fourth gallons of paint He used 3/8 gallon of paint on his boat how much paint is left?
Answer:
1/8
Step-by-step explanation:
1/4 -> 2/8
3/8 - 2/8 = 1/8
Answer:
he has -1/8 left
Step-by-step explanation:
he used more paint then he had if thats possible
Select the correct difference.
5 d2 + 4 d - 3 less 2 d2 - 3 d + 4
7 d2 + 7 d - 7
3 d2 - 7 d - 7
3 d2 + 7 d - 7
7 d2 + d + 1
Answer:
+ 7 d - 7
7 d2 + d + 1
Step-by-step explanation:
+ 7 d - 7
7 d2 + d + 1
Please help me I need to answer this before tomorrow!
Answer:
Quadrant IV or D
Step-by-step explanation:
It is Quadrant IV or D, since it is a positive x (meaning it must be 1 or 4) and it has a negative y (so 3 or 4). You then find the common answer which is 4 or IV.
What’s the length of EF?
Answer:
Step-by-step explanation:
If the whole length of DEF is given as 7, and segment DE is 2, then segment EF is 7 - 2 = 5
Can someone please help me out ~ASAP~? In the triangle below, what is the length of the side opposite the 60 degree angle?
Answer:
3√3
Step-by-step explanation:
no time to explain
When solving the equation 6x - 8 = 12, the first step is to move the
constant, 8, to the right side by adding 8 to both sides. What is the
equation after step one?*
6x - 8 = 12 + 8
14x - 8 = 20
6x = 12 + 8
6x = 20
Answer:
6x= 12+8
Step-by-step explanation:
I made a mistake while solving the inequality below. What mistake did I make? Explain what I should’ve done instead.
Answer:
Mistakes:
Used addition
Didn't flip inequality form
Corrections:
Divide each term
Instead of a positive value it should be negative
flip the direction of the inequality form
Step-by-step explanation:
[tex] - 9x \div - 9 \leqslant 90 \div – 9 [/tex]
cancel the common factor
[tex] \times \leqslant 90 \div - 9[/tex]
Divide 90 by – 9
Answer is:
[tex] \times \leqslant - 10[/tex]
Hope this helps!
An item is regularly priced at $85. It is on sale for 40% off the regular price. How much in dollars) is discounted from the regular price?
Answer:
34 dollars were discounted
Step-by-step explanation
40 percent of 85 is 34
f(x) = 3x - 1 and g(x) = x + 2, find (f+9)(x).
Answer:
what is this it looks so hard I don't have the answer
Answer:
(f + g)(x) = 4x + 1
Step-by-step explanation:
f(x) = 3x - 1
g(x) = x + 2
(f + g)(x) = f(x ) + g(x)
= 3x - 1 + x + 2
= 4x + 1
Class A has 27 pupils and class B has 11 pupils.
Both classes sit the same maths test.
The mean score for class A is 26.
The mean score for both classes is 36.
What is the mean score (rounded to 2 DP) in the maths test for class B?
Answer:
10
Step-by-step explanation:
If there is 26 is in class a and altogether you get 36 you must take 26 from 36
Find the average rate of change of a function that contains the points (-2,3) and (2,5)
Answer: [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Rate of change are typically found using [tex]\frac{y_{2} -y_{1}}{x_{2}-x_{1} }[/tex].
[tex](x_{1}, y_{1}) = (-2, 3)\\(x_{2}, y_{2}) = (2, 5)\\\\\frac{5-3}{2-(-2)} =\frac{2}{2+2} =\frac{2}{4} =\frac{1}{2}[/tex]
Therefore, the rate of change(aka slope) is [tex]\frac{1}{2}[/tex].
Solve for w:
w +6 > -18
Ow<-16
Ow>-16
Ow<-36
W > -36
Answer:
w> -24
Step-by-step explanation:
w +6 > -18
Subtract 6
w+6-6 > -18-6
w> -24
Money in a bank triples every 9 years. If $100 is deposited today, what will it's value be after 36 years?
Answer:
[tex]\$8,100[/tex]
Step-by-step explanation:
We can denote this increase with the function [tex]y=3^x\cdot 100[/tex], where [tex]y[/tex] is value after [tex]\frac{x}{9}[/tex] years.
Substituting [tex]x=36[/tex], we get:
[tex]3^4\cdot 100=\boxed{\$8,100}[/tex]
Answer:
8,100
Step-by-step explanation:
The first 9 years would be 300, then 18 years would be 900, and 27 years it would be 2,700, and finally after 36 years it would be 8,100.
Hey can someone please help me?
I need to show work too :(
Answer:
a ≈ 14.39
Step-by-step explanation:
7² + a² = 16²
49 + a² = 256
49 - 49 + a² = 256 - 49
a² = 207
√a² = √207
a = 14.3874945699
a ≈ 14.39
Select ALL the equivalent representations of 10 x 10 * 10°
1
A
1
1,000
103
B
10-3
0.01
E
C
0.001
103
F
Answer:
[tex] \frac{1}{10 \times 1 \times 10} \\ = \frac{1}{1000} \\ = 0.001 \\ = \frac{1}{ {10}^{3} } \\ = {10}^{ - 3} [/tex]
the answers A,B,C and D are equivalent
The resulting row 1 entries are:
7.12
7.10
7,9
Answer:
OPTION C is the correct answer
7,9
Answer:
option 3 is correct
Step-by-step explanation:
hope it helped
have a good day!
Figure 1 shows a paperweight made from a hollow hemisphere and a hollow cone. The paperweight contains sand so that the sand exactly fills the hemisphere. The radius of the hemisphere is equal to the radius of the base of the cone. The height of the cone is 15cm and the volume of the cone is 180π cm3 Figure 2 below shows the paperweight after it has been turned upside down. Diagram NOT accurately drawn h cm Figure 2 The height of the sand in the cone is h cm. Find, to 3 significant figures, the value of h.
Answer:
13.95 cm
Step-by-step explanation:
the volume of the cone =
⅓× π r². h = 180 π
⅓×π r²×15 = 180 π
(eliminate π)
=> 5r² = 180
r² = 180/5 = 36
r=√36 = 6 cm
the volume of the sand = ½×4/3 π r³
= ⅔× π ×6³ = 144π cm³
the ratio of the volume :
144π/180π = 0.8
so the value of h = ³√0.8 x 15 = 0.93× 15
= 13.95 cm
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Answer:
Each fraction of the shape is 1/3 the whole shape. So the answer is B.
Answer:
I think C
Step-by-step explanation:
Suzanne has one 10p coin one 50p coin and some 20p coins altogether she has £1.40 how many 20p coins does she have
Answer:
She has FOUR 20p coins altogether.
Step-by-step explanation:
1.40-0.10-0.50=0.8
0.8/0.2=4
First round 7.35 to the nearest one.
7.35 rounds to?
The cost of having a window fixed is $100 plus $20 per hour of labor. Using h for the number of hours of labor, write an expression that represents the total cost.
Answer: 100+20h=x
Step-by-step explanation:
100 for the cost of the window Plus $20 times amount of hours the person does i equal the total amount you want to get which is x
Answer:
100 + (20 x H)
Step-by-step explanation:
100 dollars plus the amount paid for each hour of labor, so it would be 20 x H. Altogether it should be 100 + (20 x H).
Hope I helped!