Answer:
I think its C. correct me if I'm wrong
Step-by-step explanation:
eight hundred ninety-one billion, nine hundred sixty-two million, one hundred seventy-two thousand, four hundred nine
Write the standard form of the number shown.
Answer:
891,962,172,409
Step-by-step explanation:
that is standard form
the mass of a 30 cm³ stone is 180 g , find it's density
Answer:
The density of the stone is 6 g/cm³
Step-by-step explanation:
The rule of denisty is d = M ÷ V, where
M is the massV is the volumeLet us use this rule to solve the question
∵ The volume of the stone is 30 cm³
∴ V = 30 cm³
∵ The mass of the stone is 180 grams
∴ M = 180 g
→ Substitute them in the rule above to find d
∵ d = 180 ÷ 30
∴ d = 6 g/cm³
∴ The density of the stone is 6 g/cm³
Prove that:
(A cos x + B sin x)^2 - (B cos x + A sin x)^2 = (A^2 - B^2) (cos^2x - sin^2x)
Answer:
see explanation
Step-by-step explanation:
Consider the left side
(Acosx + Bsinx)² - (Bcosx + Asinx)² ← expand factors using FOIL
= A²cos²x + 2ABsinxcosx + B²sin²x - (B²cos²x + 2ABsinxcosx + A²sin²x)
= A²cos²x + 2ABsinxcosx + B²sin²x - B²cos²x - 2ABsinxcosx - A²sin²x
= A²cos²x - Bcos²x + B²sin²x - A²sin²x ← factor first/second and third/fourth terms
= cos²x(A² - B²) - sin²x(A² - B²) ← factor out (A² - B²) from each term
= (A² - B²)(cos²x - sin²x)
= right side ⇒ proven
Find the missing value. 7/8 = x/28.8 Please help, I clearly have no brain cells left, and I have the brain capacity of a Carrot ;-;
============================================
Work Shown:
7/8 = x/28.8
7*28.8 = 8*x .... cross multiply
201.6 = 8x
8x = 201.6
x = 201.6/8 ... divide both sides by 8
x = 25.2
The missing value of x is 25.2.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Let the missing value is x.
Given:
7/8 = x/28.8
7(28.8) = 8x
Cross multiply;
201.6 = 8x
8x = 201.6
x = 201.6/8
Divide both sides by 8;
x = 25.2
Hence, The missing value of x is 25.2.
Learn more about the unitary method;
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LaTeX: \frac{25}{35} 2535 in simplest form is _______
Answer:
:] go 2 circle's to the right and go to circles to the left
Step-by-step explanation:
you'll get the right answer, it works good
Marsha Lynch opened a savings account on January 1st with a lump sum $625.00 deposit. Interest is compounded on a quarterly basis at a rate of 5.7%. What is her balance at the end of 2 years?
Answer:
698.28
Step-by-step explanation:
39/9 as a repeating decimal
Answer:
4.3333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333
Step-by-step explanation:
just do it
80% of the tickets sold at a water park were child tickets. If the park sold 55 tickets in all,
how many child tickets did it sell?
Answer: 44
Step-by-step explanation: .8X55 = 44
Make ‘y’ the subject of the formula ax + by=k
Answer:
[tex] y = \frac{k - ax}{b} [/tex]
Step-by-step explanation:
[tex]ax + by = k \\ \\ by = k - ax \\ \\ \huge \red{y = \frac{k - ax}{b} }[/tex]
please help me with y-intercept and slope
The options are
0
1
2
4
Answer:
it is 1
Step-by-step explanation:
because the line goes through 1 on the y-axis
Answer:
The answer is 1
Step-by-step explanation:
Aunt Maggie’s car broke down on Interstate 10. Sam’s Towing charges a $57 hook up fee and $2.00 per mile towed. Regina’s Towing charges a $45 hook up fee and $2.50 per mile towed .Write a system of equations to represent the charges for the two towing companies. When will they charge the same amount?
Answer:
a and b
Step-by-step explanation:
yes
can someone help me with this pls no bull sh answers
Answer:
(x-1)(-3x-7)
Step-by-step explanation:
To find this answer I used this method:
Consider the triangle. Which statement is true about the length of the sides?
Each side has a different length.
Two sides have the same length, which is less than the length of the third side.
The three sides have the same length.
The sum of the lengths of two sides is equal to the length of the third side.
Answer:For this case we observe that the 2 angles of the triangle are equal. Also, we have by definition:
A triangle is , when the three sides are connected(in addition, the three internal angles measure 2 angles 45 degrees and 1 angle 90
Step-by-step explanation:
Hurry please I’m being timed
Which equation represents the function shown on the
graph?
O y=1/4x
O y=1/2x
O y=2x
Oy=4x
I'm pretty sure it is c I dknt remember
Answer:
The Answer is D, not C I just took the test and got it wrong!
Step-by-step explanation:
The correct test answers are:
1: B 7: A
2: C 8: B
3: C 9: D
4: D 10: A
5: D
6: B
Hope This Helps!
four and seventy-two thousandths
Answer:
4.072
Step-by-step explanation:
Answer:
72,004Step-by-step explanation:
Brainliest? Thanks!
Help me solve this scale factor! (i’ll give brainlist)
Can anyone help with this?
Answer: D. 4x² + 3/2x - 7
Step-by-step explanation:
A customer purchased a total of 10 hats and scarves. Each hat cost $4.50 and each scarf cost $3.00. The customer spent $36.00 all together.
How many hats did the customer buy?
Enter your answer in the box.
Answer:
The customer bought 4 hats, and 6 scarves.
Step-by-step explanation:
$4.50x4 = $18
$3.00x6 = $18
$18 + $18 = $36!
Please mark "Brainliest"!?
- Pricespidey
Three baby penguins and their father were sitting on an iceberg
0.5
0.50, point, 5 meters above the surface of the water. The father dove down
4.7
4.74, point, 7 meters from the iceberg into the water to catch dinner for his kids.
Answer:
-4.2
Step-by-step explanation:
0.5 - 4.7= -4.2
Answer:
The answer for khan Is -4.2
Step-by-step explanation:
(Its a negative not positive)
I need help on thuss ASAP!
Two boats, A and B, are approaching a port. The distance between the boats is 12 miles. The bearings of the port with respect to boat A and boat B are N 60° W and N 35° E respectively. How far is boat A from the port? A. 11.02 miles B. 9.87 miles C. 8.23 miles D. 4.54 miles
The distance from boat A to the port is approximately 5.196 miles.
Let's let point P represent the port.
Here A represent boat A and B represent boat B.
It is also given distance between A and B as 12 miles.
Next, we are finding the angles which boat A and boat B make with the line connecting them.
Let's call this line AB.
We can find these angles by subtracting the given bearings from 180 degrees.
For boat A, the angle it makes with AB is 180° - 60° = 120°
For boat B, the angle it makes with AB is 180° - 35° = 145°
Now we can use trigonometry to find the distance from boat A to the port. Let's call this distance x.
We can use the law of sines, which states
sin A / a = sin B / b = sin C / c
where A, B, and C are angles of a triangle and a, b, and c are the side lengths opposite those angles.
In our case, we can use the angle at boat A (which is 60 degrees) and the angle at the port (which is 120 degrees) along with the side opposite the angle at boat A (which is x) and the side opposite the angle at the port (which is 12-x), sin 60° / x = sin 120° / (12 - x)
We are Simplifying,
√3 / x = √3 / (12 - x)
Multiplying both sides by x(12-x),
12√3 - 3x√3 = x√3
Simplifying further,
12√3 = 4x√3
Dividing both sides by 4√3,
x = 3√3
Therefore, the distance from boat A to the port is approximately 5.196 miles.
Learn more about distance here,
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Please help!!!!
A 1 and 3 only
B 2 only
C 1 and 2 only
D 1 only
Step-by-step explanation:
D I think sorry if it's wrong :(
help me plz and thanks
Answer:
A, the solutions are x=3,2
Step-by-step explanation:
NEED HELP ASAP!!! 50 pts (Algebra 2, Systems of Equations)
The Smith family is trying to decide what theme park to visit on their vacation. Family Fun Land costs $12 per person and $40 for parking. Blue Jay Bay costs $22 per person and $12 for parking. Explain their different options depending on how many people go.
Answer: For groups with over 3 people, Family Fun Land is the best option. It's cheapest for groups of 1 or 2 to go to Blue Jay Bay.
Step-by-step explanation:
Family Fun Land | y = total $, x = # of people
y = 12x + 40
Blue Jay Bay
y = 22x + 12
2 People
y = 12(2) + 40
y = 64
y = 22(2) + 12
y = 56
3 People
y = 12(3) + 40
y = 76
y = 22(3) + 12
y = 78
whats 4+x=6 ( i really need help)
Answer:
2
Step-by-step explanation:
4+x=6 = 6-4=x
x=2
Answer:
2
Step-by-step explanation:
6-4=2
x=2
4+2=6
There is a bag with only red marbles and blue marbles.
The probability of randomly choosing a red marble is 2/7
There are 16 red marbles in the bag and each is equally likely to be chosen.
Work out how many marbles in total there must be.
Answer: 56
Step-by-step explanation:
Given that :
Marbles in bag are only red and blue ;
Probability of randomly choosing a red = 2/7
Number of red marbles in bag = 16
The total Number of marbles =?
P(choosing a red marble) = required outcome / Total possible outcomes
Required outcome = number of red marbles
Total possible outcomes = total number of blue and red marbles
Total number of blue and red marbles = x
P(choosing a red marble) = required outcome / Total possible outcomes
2/7 = 16 / x
Cross multiply
2x = 16 * 7
2x = 112
x = 112 / 2
x = 56 marbles
Total number of marbles = 56
The perimeter of a rectangle is 50 m and
breadth is 9m . Find its length
Answer:
16m
Step-by-step explanation:
P =2(L+w)
50 = 2(L + 9)
50 = 2L + 18
50 -18 = 2L
32 =2L
L = 16m
Shane has a piece of fabric that is 4 1/3 yards long. He plans to cut the fabric into 3 pieces, each measuring 3/5 of a yard. What is the length of fabric left over after Shane cuts the 3 pieces.
Answer:
Is it 2 and 8/15 for the answer?
Step-by-step explanation:
3/5 times 3/1 = 9/5 = 1 4/5, then 4 1/3 - 1 4/5= 2 8/15
Raina drank 5 L 400 ML of water on the first three days of the week each. The next 2 days she drank 3 L each and the remaining days of the week she drank only 1.500 L each . How much water did she drink in that one week?
Answer:
She drank a total of 17 L 400 ML
Step-by-step explanation:
Here, we want to know the amount of liters of water drank in the week
In the first three days;
5L 400 ML;
Next two days 3 L each = a total of 6 L
Remaining 4 days; 1.5 L each which is a total of 4 * 1.5 = 6 L
Total amount drank will be;
6 + 6 + 5L 400 ML
= 17L 400 ML