Answer:
x=48
y=142
Step-by-step explanation:
Expand and simplify (x-3)(x+5)
Answer:
x2+2x−15
Step-by-step explanation:
Answer:
x^2 + 2x - 15
Step-by-step explanation:
X × X + 5x - 3x - 3 × 5 =
x^2 + 5x - 3x - 3 × 5 =
X^2 + 2x - 15
also x^2 means x to the 2nd power
Find the surface area of the above solid.
A. 52 cm2
B. 43 cm2
C. 54 cm2
D. 58 cm2
Answer:
A.52 cm2 ihope ihelp po hehe
The band must decide when to meet for a practice. The possible days are Tuesday or Wednesday. The possible times are 3, 4, or 5 p.m.
Write the sample space to represent all of the options. How many options are there?
Answer:
There are 6 options, sample space is below.
Step-by-step explanation:
The band has 2 days to pick from. For each day, they have three different options for times. 2 days x 3 times = 6 options. Therefore, the sample space is: (usually this would be a picture, with arrows. search it )
for Tuesday: 3, 4, or 5
for Wednesday: 3, 4, or 5
Cassie started with $48 in her savings account. She adds the same amount of money to the account each week. The table shows how much money
she has in her savings account at the end of each week shown. How much money does Cassie add to her savings account each week? Help ASAP
Answer:
I think its 12
Step-by-step explanation:
If you subtract from each its 36 but since it goes by 3 weeks you divide 36 by 3 and get 12. I am not 100% sure though.
carol rolled a dice 150 times she rolled a six 39 time
Answer:
nice
Step-by-step explanation:
whats the rest of the problem or is it just that she rolled a dice
Use 1/2ab sin C formula pls
Step-by-step explanation:
[tex]area = \frac{1}{2} a.b \sin(C) \\ from \:cosine \: rule \\ {c}^{2} = {a}^{2} + {b}^{2} - 2a.b \cos(C) \\ 36 = 144 + 81 - (2 \times 12 \times 9) \cos(C) \\ 189 = 216 \cos(C) \\ \cos(C) = 0.875 \\ C = \cos {}^{ - 1} (0.875) \\ C = 28.96 \degree \\ area = \frac{1}{2} \times 144 \times 9 \times \sin(28.96 \degree) \\ area = 313.8 \: sq \: units[/tex]
Exact value of csc 570 degrees and tell me the lengths of the sides of the triangle
Answer:
[tex] \csc(570 \degree) = \frac{1}{ \sin(570 \degree) } \\ = \frac{1}{ - 0.5} \\ = - 2[/tex]
Plz help me well mark brainliest if correct
Plz help me well mark brainliest!!
What is the surface area of the prism in square feet?
9 square feet
24 square feet
26 square feet
O 52 square feet
Answer:
SA = 52 ft²
Step-by-step explanation:
The opposite faces of the prism are congruent , then
SA = 2(3 × 2) + 2(2 × 4) + 2(3 × 4)
= 2(6) + 2(8) + 2(12)
= 12 + 16 + 24
= 52 ft²
Answer:
52
Step-by-step explanation:
Surface area = sum of faces areas
SA of a rectangular prism = 2 ( lw + wh + lh )
where l = length, w = width and h = height
The prism has the following dimensions
l = 3
h = 4
w = 2
That being said we want to plug in these dimensions into the formula
SA = 2 ( 3*4 + 4*2 + 2*3 )
3*4=12
4*2=8
2*3=6
SA = 2 ( 12 + 8 + 6 )
12 + 8 + 6 = 26
SA = 2(26)
SA = 52
54 divided by u = 9.
Answer:
6 = u
Step-by-step explanation:
54 / u = 9
We have to isolate "u" all by itself;
54 = 9*u
54 / 9 = u
6 = u
Hope this helps!
Answer:
6
Step-by-step explanation:
We need to find of u value such that , 54 divided by u = 9. Converting it into equation ,
Equation :-
→ 54/u = 9
→ 1/u = 9 × 1/54
→ 1/u = 1/6
→ u = 6
Hence the required answer is 6.What is the same ration of 2/3
Answer:
4/6
Step-by-step explanation:
Answer:
4/6
Step-by-step explanation:
The triangle shown below has an area of 40 units. Find the missing side.
8 and 9 are both sides (help meeee)
I have 56,552 pencils. I share it with 25 teachers. How many pencils does each teacher get?
Answer:
2262.08 pencils each. man it is silly. 56552/25
Step-by-step explanation:
What is the answer to this ?
Answer:
the answer is 180
Step-by-step explanation:
The sides of an isosceles triangle have lengths of 10, 10, and 4. Find the measures of the base angles.
Answer:
The base angles measure 78.46 degrees to the nearest hundredth.
Step-by-step explanation:
Applying the Cosine Rule:
10^2 = 10^2 + 4^2 - 2.4.10cosX where X is a base angle.
cos X = (100 - 100 - 16)/ (-80)
cos X = -16/-80
cos X = 0.2
X = 78.463 degrees
1,2,2,4,8,32,? what comes next?
Answer:
64
Step-by-step explanation:
1 x 2 = 4
4 x 2 = 8
8 x 2 = 32
32 x 2 = 64
Answer:
256
Step-by-step explanation:
1, 2, 2, 4, 8, 32
this is how the pattern works;
1*2 = 2
2*2 = 4
2*4 = 8
4*8 = 32
8 * 32 = 256 by calculator
1. How many 5-digit numbers are there for which the last digit is not a 6 or an 8, the digit 6 appears exactly once, and the number is even
Answer:
8019 possible 5 digit numbers
Step-by-step explanation:
Available number to pick from are a total of 10 which are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
>> Now, let's consider when the first digit is 6 since we are told that 6 can appear only once.
For the first digit, it's only 1 way.
For the 2nd, 3rd, and 4th digit, we have 9 digits to pick from. Which is 9 ways each.
While for the 5th digit, it can't be 6 or 7. And it has to be even and so, we can pick only 0, 2, 4. Thus, we have 3 ways to choose.
So total number of ways here = 1 × 9 × 9 × 9 × 3 = 3 × 9³ ways
>> Now, let's consider when the 2nd digit is 6 since we are told that 6 can appear only once.
For the 1st digit, since 6 is not possible, and also 0 is not possible because a 5 digit number can't start with zero as it would no longer be a 5 digit number.
Thus, there are 8 ways to choose here.
For the second, third and fourth digits, there will be 9 ways each to chops.
While for the fifth digit, there will be 3 ways to choose.
Total number of ways here = 8 × 1 × 9 × 9 × 3 = 24 × 9² ways
>> When the third digit is 6, number of ways to choose will be same as above = 24 × 9² ways
>> When the fourth digit is 6, number of ways to choose will be same as above = 24 × 9² ways
We can't say none of the digits is 6 because we are told it appears exactly once.
Thus, total possible 5 digit numbers are;
(3 × 9³) + 3(24 × 9²) = 8019 possible 5 digit numbers
A 0.68 kg tennis ball is given an angular momentum of 2.72 X 10-3 kg.m2/s when struck by a racquet. If its radius of gyration is 2 cm what is its angular velocity?
50 POINT QUESTION!! Any help is appreciated, thank you!
Answer:
The angular velocity of the tennis ball is 10 radians per second.
Step-by-step explanation:
The tennis ball can be represented as a particle, the angular momentum ([tex]L[/tex]), in kilogram-square meter per second, of the tennis ball is described by the following formula:
[tex]L = m\cdot r^{2}\cdot \omega[/tex] (1)
Where:
[tex]m[/tex] - Mass of the tennis ball, in kilograms.
[tex]r[/tex] - Radius of gyration, in meters.
[tex]\omega[/tex] - Angular velocity, in radians per second.
If we know that [tex]m = 0.68\,kg[/tex], [tex]r = 0.02\,m[/tex] and [tex]L = 2.72\times 10^{-3}\,\frac{kg \cdot m^{2}}{s}[/tex], then the angular velocity of the tennis ball is:
[tex]\omega = \frac{L}{m\cdot r^{2}}[/tex]
[tex]\omega = \frac{2.72\times 10^{-3}\,\frac{kg\cdot m^{2}}{s} }{(0.68\,kg)\cdot (0.02\,m)^{2}}[/tex]
[tex]\omega = 10\,\frac{rad}{s}[/tex]
The angular velocity of the tennis ball is 10 radians per second.
Solve for x
2
х
al
2
Answer:
4/5 = x
Step-by-step explanation:
2/5 = x/2
Using cross products
2*2 = 5x
4 = 5x
Divide by 5
4/5 = 5x/5
4/5 = x
Answer:
[tex]\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}[/tex]
[tex] \frac{2}{5} = \frac{x}{2} [/tex]
Use the cross multiplication method.
[tex]2 \times 2 = x \times 5 \\ 4 = 5x \\ \frac{4}{5} = x[/tex]
➳ Answer = [tex] \frac{4}{5} [/tex]
please tell me where to graph this!! (include if i open circle or not please) (NO FILE ANSWER!!!)
Answer:
1.Make the circle open
2.put the dot on 5
3. change direction
Step-by-step explanation:
A solid dot on a number line graph indicates that the given number should be included as a possible solution, whereas an open dot indicates that the given number cannot be a solution. For example, if you graph x > 7, you place an open dot at 7.
Have a nice day! :-)
Answer:
closed circle on 3 with line pointing right
Step-by-step explanation:
the number can be greater than or equal to 3 so it means that includes 3 so closed circle on 3 and then it points right towards the bigger numbers because it can be greater than 3
I can’t figure this stuff out
Answer:
[tex]3\sqrt{85}[/tex] = EC
Step-by-step explanation:
21² + 18² = EC²
441 + 324 = EC²
765 = EC²
[tex]\sqrt{765}[/tex] = EC
Simplified: [tex]3\sqrt{85}[/tex] = EC
Hope this helps!
5¼
a5.41 m
b5.25 m
c5.05 m
d5.04 m
Answer:
d is right broooooooooooooooo
Answer:
d
Step-by-step explanation:
5.4 is the ans ..hope it helps
9. Find the missing measure on this right
triangle using the Pythagorean Theorem.
? =
7ft
15ft
Sara is planning on fully renovating her kitchen. She figures that this will cost a total of $25,750. If Sandra already has $21,400 saved up, what annual interest rate
compounded semiannually would Sara need to earn in order to have the required
funds if she invests her money for 2.5 years?
Answer:
She needs an annual interest rate of 7.54%.
Step-by-step explanation:
Compound interest:
The compound interest formula is given by:
[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]
Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.
She figures that this will cost a total of $25,750.
This means that [tex]A = 25750[/tex].
Sandra already has $21,400 saved up
This means that [tex]P = 21400[/tex].
Semianually compunding, 2.5 years.
This means that [tex]n = 2, t = 2.5[/tex]
What interest rate?
We have to find r. So
[tex]A(t) = P(1 + \frac{r}{n})^{nt}[/tex]
[tex]25750 = 21400(1 + \frac{r}{2})^{2*2.5}[/tex]
[tex](1 + 0.5r)^5 = \frac{25750}{21400}[/tex]
[tex]\sqrt[5]{(1 + 0.5r)^5} = \sqrt[5]{\frac{25750}{21400}}[/tex]
[tex]1 + 0.5r = (\frac{25750}{21400})^{\frac{1}{5}}[/tex]
[tex]1 + 0.5r = 1.0377[/tex]
[tex]0.5r = 0.0377[/tex]
[tex]r = \frac{0.0377}{0.5}[/tex]
[tex]r = 0.0754[/tex]
0.0754*100% = 7.54%
She needs an annual interest rate of 7.54%.
HELP ME PLEASE I REALLY NEED THE HELP
Answer:
Answer = 126 square inches
Step-by-step explanation:
Square area formula is Area = s^2 (replace the s with the side length)
Square area --> Area = 4^2 Area = 16in
Parallelogram area formula is Area = h * b (replace h with height length and replace b with base length)
Parallelogram area --> Area = 3.5 * 10 Area = 35
Rectangle area formula is Area = w * h (replace width and height)
Rectangle area --> Area = 12.5 * 6 Area = 75
Then add them all up 75 + 35 + 16 = 126 square inches
Look at the information below. The sum of the measures of angle M and angle R is 90°. © The measure of angle M is (5x + 10). The measure of angle R is 55º. Write an equation that can be used to determine the value of x?
Answer:
Solution given;
<M=5x+10
<R=55
<M+<R=90°
5x+10+55=90°[is a required equation]
now solving it
5x=90-65
5x=25
x=25/5
x=5is your answer.
Their sum is 90
55+5x+10=180Solve it
5x+65=905x=25x=5the table shows the total number of apples pears and oranges in a fruit basket. Which statement represents the relationship between the total pieces of fruit and the number of pears in the basket
Answer:
A. There is four times as much total fruit as pears.
you have a set of 10 cards numbered 1 to 10. you choose a card at random. Event A is choosing a number less than 7. Event B is choosing an odd number. Calculate the probability. P(A)
Answer:
6/10 for event A or 3/5 reduced
5/10 for event B or 1/2 reduced Hope that helps!
what is the value of y in the following system of equations ? 2x + 3y = 6 2x + y = -2
y = 4
Step-by-step explanation:
2x + 3y = 6. #1
2x + y = -2. #2
Subtract Eq 2 from Eq 1,
3y - y = 6 - (-2)
2y = 8
or
y = 4
Answer:
y = 4
Step-by-step explanation:
2x + 3y = 6
2x + y = -2
Let's set the second equation equal to y. This means that y will be alone on one side of the equal sign.
2x + y = -2
Subtract 2x from both sides.
y = -2x - 2
Now that we have y as an expression, plug it into the first equation.
2x + 3y = 6
2x + 3(-2x - 2) = 6
Distribute the 3 across the parentheses by multiplying.
2x - 6x - 6 = 6
Combine like terms.
-4x = 12
Divide both sides by -4.
x = -3
Now we have solved x.
To solve for y, plug x back into one of the equations.
y = -2x - 2
y = -2(-3) - 2
Multiply.
y = 6 - 2
Subtract.
y = 4
Check your answer by plugging both values back into the original equations.
2x + 3y = 6
2(-3) + 3(4) = 6
Multiply.
-6 + 12 = 6
Add.
6 = 6
Your answer is correct.
Hope this helps!
Will give brainliest answer
Answer:
a
Step-by-step explanation: