Answer: 145 is a rational number because it can be expressed as the quotient of two integers: 145 ÷ 1.
Step-by-step explanation:
Jacelyn charges $9 per hour for umpiring softball games. If u represents Jacelyn's total fee after umpiring for h hours,
which equations can be used to model the situation?
how many hours? you didnt tell
A piece of furniture has a retail price of $780 and it’s on sale at a 20% discount what will the sale price of the piece of furniture before taxes
Answer:
624$
Step-by-step explanation:
(-7-3i)(11-8i)
Simplified into the a+bi form
Answer: what
Step-by-step explanation:
Please determine x.
Which expression is equal to (x+2)(x−4)(x−4)(x+4)?
x+2x+4
x−2x+4
x−2x−4
x+4x+2
Answer:Since the expression on each side of the equation has the same denominator, the numerators must be equal.
x
2
=
16
Take the square root of both sides of the equation to eliminate the exponent on the left side.
x
=
±
√
16
The complete solution is the result of both the positive and negative portions of the solution.
Tap for more steps...
x
=
4
,
−
4
Exclude the solutions that do not make
x
2
x
−
4
=
16
x
−
4
true.
x
=
−
4
Step-by-step explanation:
a Zoo ticket cost $13 for adults in about $8 for students if a company of 125 people wanted to take his employees to the zoo how much would they have to pay
Answer:
Assuming there all adults, it would be $1625
Step-by-step explanation:
Round 1.9578 to 1 decimal
Answer:
2
Step-by-step explanation:
the first decimal is 9
9>5 so by rounding 1.9578 to 1 decimal we get 2
What is the solution to this equation? 3x - x + 8 + 5x - 2 = 10 A. x=16/7 B. x=16/9 C. x=4/9 D.x=4/7
Answer:
D
Step-by-step explanation:
checked it over as well
Using Properties to Simplify Expressions
Instruction Active
Matching Equivalent Expressions
Match each expression on the left with an equivalent expression on the right
PLS HELP
Answer:
1) 2x-3 = x -3 + x
2) 2x - 6 = -6 + 2x
3) [tex]\frac{3}{5}-\frac{13}{5}=-6.9+4.9[/tex]
4) 3x+0 = 3x
5) [tex]\frac{5}{3}-x+\frac{1}{3}=-\frac{3}{2}x+2+\frac{1}{2}x[/tex]
Step-by-step explanation:
We need to match each expression on the left with an equivalent expression on the right
The expressions are equivalent if the have the same results.
1) 2x - 3
Looking at the options the best match is:
x -3 + x
When solve we get:
2x-3
So, 2x-3 = x -3 + x
2) 2x - 6
Looking at the options the best match is:
-6 + 2x
Because according to commutative property: a+b = b+a
So, 2x - 6 = -6 + 2x
3) [tex]\frac{3}{5}-\frac{13}{5}[/tex]
First simplifying the given expression:
[tex]\frac{3}{5}-\frac{13}{5}\\=\frac{3-13}{5}\\=\frac{-10}{5}\\=-2[/tex]
Looking at the options, -6.9+4.9 = -2
So, [tex]\frac{3}{5}-\frac{13}{5}=-6.9+4.9[/tex]
4) 3x + 0
Looking at the options the best match is:
3x
Because, adding 0 in 3x will result in 3x
So, 3x+0 = 3x
5) [tex]\frac{5}{3}-x+\frac{1}{3}[/tex]
First simplifying:
[tex]\frac{5}{3}-x+\frac{1}{3}\\=\frac{5-3x+1}{3}\\=\frac{6-3x}{3}\\= \frac{3(2-x)}{3}\\=2-x[/tex]
Now, solving the option: [tex]-\frac{3}{2}x+2+\frac{1}{2}x[/tex]
[tex]=\frac{-3x+4+1x}{2}\\=\frac{-2x+4}{2}\\=\frac{2(-x+2)}{2}\\=-x+2\\or\\=2-x[/tex]
So, [tex]\frac{5}{3}-x+\frac{1}{3}=-\frac{3}{2}x+2+\frac{1}{2}x[/tex]
A farm is to be built in the shape of Quadrilateral ABCD, as shown below. All four sides are equal.
A rhombus ABCD is shown with diagonal AC equal to 18. 3 feet and diagonal BD equal to 13.8 feet
What is the area of the farm? (1 point)
a
73.2 square feet
b
111.2 square feet
c
126.27 square feet
d
168.36 square feet
Answer:
c 126.27 square feet
Step-by-step explanation:
sum of two triangles
18.3 * (13.8/2) * 2 = 126.27
Choose the relationship that is modeled by the table, the graph, and the equation. Morgan buys apples for $2 per pound. O Morgan swims 2 miles more than the number of hours he is exercising, © Morgan practices for 2 hours a day. O Morgan walks 2 miles per hour.
Answer:
Morgan walks 2 miles per hour.
Step-by-step explanation:
Answer:
d Morgan walks 2 miles per hour.
Step-by-step explanation:
Tom enjoys going to the hardware store. In the past three
weeks, he has spent a total of $85.84 on a hammer, nail
gun, and box of nails. What amount shows his average
spending per week?
A) $14.31
B) $28.61
C) $69.93
D) $85.84
Answer:
B) $28.61
Step-by-step explanation:
Average spending per week:
85.84 ÷ 3 ≈ 28.61
What is the angle measurement of CBD?
A
U
68°
D
B
20°
229
Ο Ο Ο Ο
29ο
1
25°
24
In a right triangle ABC, C is the right angle. What does cosB equal?
1. SinB
2. SinA
3. CosA
4. Not enough info
Given that,
ABC is a right angle triangle, C is the right angle.
To find,
cosB = ?
Solution,
The sum of angle of a triangle is equal to 180 degrees. So,
∠A + ∠B + ∠C = 180°
Put ∠C = 90°
∠A + ∠B + 90° = 180°
∠A + ∠B = 90°
Taking cos with each term.
cosA+cosB = cos (90)
cosA+cosB = 0
cosB=-sinA
Hence, cosB = sinA.
The scatter graph shows the scores of 16 students on the biology and physics tests
Step-by-step explanation:
85 l don't see questions properly so l knew this much only l don't know exact answer so l write this answer
9x + 4
8x - 4
4x + 17
If the perimeter is 374 units, find the value of x and the area of the triangle.
The value of x is
The area is
square units.
Answer:
x = 17
Area = 10,362units²
Step-by-step explanation
Given the sides of the triangle
S1 = 9x+4
s2 = 8x-4
S3 = 4x+17
Perimeter of the triangle is the sum of all the sides
P = S1+S2+S3
374 = 9x+4+8x-4+4x+17
374 = 21x+17
21x = 374-17
21x = 357
x = 357/21
x = 17
Hence the value of x is 17
Area of the triangle is 1/2bh
A = 1/2bh
b is the base
h is the height
Let the base be 9x + 4 and height be 8x-4
b = 9x+4
b = 9(17)+4
b = 153+4
b = 157units
h = 8x-4
h =8(17)-4
h = 136-4
h = 132
Area = 1/2 * 157 * 132
Area = 157*66
Area = 10,362units²
Is Sue´s answer correct? if not, why?
1/6(x-5)=1/2(x+6) help
Answer: x= -23/2
Step-by-step explanation:
multiply both sides of the equation by 6
x-5=3(x+6)
distribute 3
x-5=3x+18
move variables to lest-hand side and change sign
x-3x=18+5
like terms
-2x=23
the divide both sides by -2
x= -23/2
25624 divided by 2/3
Answer:
38436
Step-by-step explanation:
(25624/1) * (3/2) = 76872/2
76872/2 = 38436
What is the x-coordinate of the point shown in the graph?
y
8
4
-2
2 2
4
B
-8-6-4-2
-2
4
Answer:
-5, -7 or its -7, -5
Step-by-step explanation:
Answer:
-7 -5
Step-by-step explanation:
If A = 4x2 + 9x - 5 and B = 6x2 – 3x - 9, then A - B equals
Answer:
1 I think I'm not 100% sure though
For a science experiment, students need to find 25% of 60 grams. How many grams is that?
Which of the following expressions represents the statement below?
four added to seven times a number
A.
7(n + 4)
B.
4n + 7
C.
4(n + 7)
D.
7n + 4
Answer:
d
Step-by-step explanation:
7 times a number would be 7n and with addition you can move the numbers around and it won't affect the result.
(50pts)Solve for x:
a
7.125
b
6
c
8
d
4.125
Answer:
b. 6
Step-by-step explanation:
[tex](16x + 9) \degree = 105 \degree \\(corresponding \: \angle s) \\ \\16x + 9 = 105 \\ \\ 16x = 105 - 9 \\ \\ 16x = 96 \\ \\ x = \frac{96}{16} \\ \\ x = 6[/tex]
How do you further solve this?
Answer:
x = ±√89-30 cos(55) (everything is under the radical)
and then plug the radical into a calculator and you get two answers:
x1= -9.39873
x2=9.39873
Step-by-step explanation:
i hope this helped :)
Pls help easy points
Answer: The tax for one dollar is $.0825. The tax for the 12 dollar soap is $.99
Step-by-step explanation:
To figure this out you divide the tax by the price. (.66 divided by 8) This means its .0825 tax for every dollar.
The average fuel efficiency of U.S. light vehicles (cars, SUVs, minivans, vans, and light trucks) for 2005 was 21 mpg. If the standard deviation of the population was 2.9 and the gas ratings were normally distributed, what is the probability that the mean mpg for a random sample of 25 light vehicles is Under 20
Answer:
0.042341
Step-by-step explanation:
We solve using z score formula
z = (x-μ)/σ/n, where
x is the raw score = 20 mpg
μ is the population mean = 21 mpg
σ is the population standard deviation = 2.9
n = random number of samples
Hence:
For x < 20
= z = 20 - 21/2.9/√25
= z = -1/2.9/5
= z = -1.72414
P-value from Z-Table:
P(x<20) = 0.042341
The probability that the mean mpg for a random sample of 25 light vehicles is Under 20 mpg is 0.042341
The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341
Calculation:Here we used z score formula
z = (x-μ)/σ/n, wherex is the raw score = 20 mpgμ is the population mean = 21 mpgσ is the population standard deviation = 2.9n = random number of samplesSo,
For x < 20
= z = 20 - 21/2.9/√25
= z = -1/2.9/5
= z = -1.72414
Now
P-value from Z-Table:
P(x<20) = 0.042341
Learn more about the probability here: https://brainly.com/question/795909?referrer=searchResults
For which line is the slope least?
How is 75% of 60 minutes 45?
Answer:
It just is see explanation
Step-by-step explanation:
75% is equal to 0.75, or 3/4. If you multiply the full 60 minutes to 3/4, then your product is 45 minutes. That's how 75% of 60 minutes is 45 minutes.
Answer: 75% of a number is the same thing as 3/4 of the number.
so for example, divide 100 by 4. you get 25 right?
right, so multiply 25 by 3 and you get 75. That's what 3/4 of something is.
now divide 60 by 4. you get 15 right?
right, so multiply 15 by 3, and you get 45 :)))
that's why 75% of 60 is 45.
i hope this helps!!
BTW when you get a question with percentages, you can flip them! In this case it doesn't really help to do so, but for example if you had a question asking:
what is 16% of 50?
FLIP IT. it's the same thing as 50% of 16!!! This works with like any percentage!!!
What is 8 2/5 minus 5/8
Answer: 7.775 as a decimal, as a fraction, 311/40.
Step-by-step explanation:
Answer:
im 95%ly sure itz just 8
Step-by-step explanation: