Answer: 1/4
Step-by-step explanation: Probability is favorable outcomes/ all outcomes, to first choose a science book, the probability is 10/20, or one-half, and then to pick one again, is also 1/2, so you multiply them together to find the probability of both happening and you get 1/4!
Solve each triangle for the missing values shown. Show all work necessary. Use exact values
3)
[tex] Cos 60°= \frac{1}{2} = \frac{Adjacent} {Hypotenuse} = \frac{y} {10} \\\\ 2y=10 \\\\ y=5 [/tex]
Now, use Pythagoras theorem to find x
[tex] x^2+y^2=10^2 \\\\ \to x^2+5^2=10^2 \\\\ \to x^2+25=100 \\\\ \to x^2 = 100-25 \\\\ \to x^2= 75 \\\\ \to x= \sqrt{75} \\\\ \bf 5 \sqrt{3} [/tex]
Similarly,
4)
[tex] Sin 45°= \frac{1}{\sqrt{2}} = \frac{Opposite} {Hypotenuse} =\frac{2 \sqrt{2}} {a} \\\\ a= 2 \sqrt{2} \times \sqrt{2} \\\\ a=4 [/tex]
Now, use Pythagoras theorem to find b
[tex] b^2+(2 \sqrt{2}) ^2=a^2 \\\\ \to b^2+8=4^2 \\\\ \to b^2=16-8 \\\\ \to b^2 = 8\\\\ \to b= \sqrt{8} \\\\ \bf b=2 \sqrt{2} [/tex]
You can solve all of them in a similar way.
: )
Please help! Math question
Answer:
think its b
Step-by-step explanation:
if you roll two standard die what is the probability that they will both be a three?
Answer:
2/6 or 1/3 (simplified)
Step-by-step explanation:
each dice has 6 sides and there is one 3 on each die, so you would add 1/6 + 1/6 to get 2/6 which simplifies to 1/3
Answer:
2/12 or 1/6
Step-by-step explanation:
In two similar triangles find the ratio of corresponding sides if the areas are 50cm²and 98cm²
Answer:
5:7
Step-by-step explanation:
The areas of two triangles are 50cm²and 98cm².
We need to find the ratio of corresponding sides. It can be calculated as follows :
[tex]\dfrac{s_1}{2_2}=\sqrt{\dfrac{A_1}{A_2}} \\\\=\sqrt{\dfrac{50}{98}}\\\\=\sqrt{\dfrac{25}{49}}\\\\=\dfrac{5}{7}[/tex]
So, the ratio of corresponding sides are 5:7.
A six-sided fair mmber cube is rolled once. What is the probability that the result is a 2 or a 5?
Write answer as fraction in its simplest form.
Answer:
1/3
Step-by-step explanation:
this is because you have six sides and two options to get and then 2/6 is 1/3
What is the answer to this one, answer it and no wrong answers.
Answer:
A
Step-by-step explanation:
A magazine has 96 pages. There are advertisements on 75% of the pages. How many of the magazine’s pages do not have advertisements
z
Note: Figure is not drawn to scale,
If x = 4 units, y = 17 units, and z = 3 units, then what is the surface area of the rectangular prism shown above?
OA.
131 units
OB. 330 units
C.
204 units
D
262 units2
124−−−√? to the nearest number
Answer:
11
124√= 11.135
I rounded it to the nearest number, 11
plz mark me as brainliest.
Create and solve a 2 step equation with addition and division.
PLEASE HELP THIS IS DUE TODAY!!! .-.
Answer:
(2+4)÷12
Step-by-step explanation:
jxkgxljcluckyxlhlusgibibsi do u need an explanation but here
Please help me, will mark brainliest
Answer:
EThir 83 or 180
Step-by-step explanation:
find the measure of each interior angle of a regular polygon with the following number of size 6
Answer
number of side(n)=6
formula to calculate each interior angle =((n-2)×180)/n
now,
((6-2)×180)/6
(4×180)/6
720/6
120
may this will help you
Answer:
120°
Step-by-step explanation:
n = 6
Work:
[tex]\frac{(n-2) *180}{n} \\\\\frac{(6-2) *180}{6} \\\\\frac{4 *180}{6} \\\\\frac{720}{6} \\\\120[/tex]
Can someone please help me?
Answer:
It is C i believe
Step-by-step explanation:
i will give you brainiest if you give right answer
can someone please answer this for me
I need help fast not not like serious help me
Answer:
D
Step-by-step explanation:
hope it helps .
sorry about the pic , kinda hard to get the whole
I need help ASAP The number of snacks in 5 packages was 122, 134, 150, 145, and 133. Suppose the mean for 6 packages was 144. How many snacks were in the sixth package?
Help I don't get this
Answer:
i think its 2,4, and 5
Step-by-step explanation:
At a frozen yogurt shop, you
pay $1.50 for the cup and
$0.50 per ounce. If the total
cost of a cup of yogurt is
$4.00, how many ounces of
yogurt did you buy?
PWEASEEEEEE HELP MEEEEEEE
Answer:
x = 65
Step-by-step explanation:
x + 115 = 180
x = 65
A shirt was sold for sh 1054 after a 15% discount . what was the discount given
Answer: discount was 186
Step-by-step explanation: original price is x.
15 % = 0.15x , and x -0.15x= 1054 and 0.85x = 1054
Then x = 1054/0.85 = 1240. Discount was 1240-1054 = 186
What is 3x3x3x3x3x3x3x33x3x3x3x3x3x3x3x3x3x3x3x3x3x3x3x33x3x33x3x3x3x3x3x3x3x3x33x3x3x3333333x333x3x3x3x3x3x3x3x3
Answer:
calculadora es muy bonita hoy
Step-by-step explanation:
Answer:
440000079
Step-by-step explanation:
HELP PLEASE!! No websites allowed please, complete 1,2,3, and 4.
NO WEBSITES! OR YOU ARE REPORTED thank you
Answer:
1: 31.5. 2: 5. 3: 4.6 4: 45
You preform a business service for which you charge $575. You receive $200 in cash and a promissory note for the balance, payable in 60 days. What steps will you use to show this transaction on your balance sheet?
Answer:
Cash is increased by $ 200 , and Notes Receivable is also increased by $ 375
Revenue Earned is also increased By $ 575.
Step-by-step explanation:
We make a journal entry
Cash $200 Debit
Notes Receivable $ 375 Debit
Services Revenue Earned $ 575 Credit
In the balance sheet the Cash is increased by $ 200 , and Notes Receivable is also increased by $ 375 on the Assets sides.
On the Liabilities side in the Owner's Equity section Revenue Earned is also increased By $ 575.
Increasing both sides ( Assets and Liabilities sections) with equal amounts will have no effect on the Balance Sheet .
Evaluate the following: 18 + 3 |6 - 25| - 11
i neeed a step by step explaniation marking brainliest
Answer:
29 (Unless I'm mistaken)
Step-by-step explanation:
18+3|6-25|-11
21+19-11
29
Write the system of equations as a matrix equation AX=B, with A as the coefficient matrix of the system.
Please help!
Answer:
[tex]\left[\begin{array}{ccc}1&2\\6&7\end{array}\right]\cdot \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}0\\-10\end{array}\right][/tex]
Step-by-step explanation:
The system of equation in matrix form is defined by following vector formula:
[tex]\vec A \cdot \vec x = \vec b[/tex] (1)
Where:
[tex]\vec A[/tex] - Matrix of coefficients.
[tex]\vec x[/tex] - Column vector of variables.
[tex]\vec b[/tex] - Column vector of results.
If we know that [tex]x + 2\cdot y = 0[/tex] and [tex]6\cdot x + 7\cdot y = -10[/tex], then the system of equations in matrix form is:
[tex]\vec A = \left[\begin{array}{ccc}1&2\\6&7\end{array}\right][/tex], [tex]\vec x = \left[\begin{array}{ccc}x\\y\end{array}\right][/tex], [tex]\vec b = \left[\begin{array}{ccc}0\\-10\end{array}\right][/tex]
Then,
[tex]\left[\begin{array}{ccc}1&2\\6&7\end{array}\right]\cdot \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}0\\-10\end{array}\right][/tex]
match the equations to the solutions
Answer:
A3
B4
C6
D5
E2
F7
G1
Step-by-step explanation:
I matched the letter to number :)
Im stuck in this question. Please someone help me
Answer:
b) The constant term is 8; The exponent of the third term is 1
A three-dimensional figure has a volume of 314 cubic centimeters rounded to the nearest cubic centimeter. Select whether each shape below, with dimensions given in centimeters (cm), matches this three-dimensional figure.
A sphere with a radius of 4.217 cm (true or false)
A sphere with a diameter of 4.217 cm (true or false)
A cone with a radius of 10 cm and a height of 3 cm(true or false)
A cylinder with a radius of 1 cm and a height of 10 cm(true or false)
A cylinder with a radius of 4.47 cm and a height of 5 cm(true or false)
Answer:
The first one and the third one are true and the rest are false
Step-by-step explanation:
Answer:
first and therd are right
Step-by-step explanation:
5 more than the product of x and 2
Answer:
2x+5
Step-by-step explanation:
Answer:
5(2x) => 10x
Step-by-step explanation:
