please help with maths !

Please Help With Maths !

Answers

Answer 1

Answer:

4.91

Step-by-step explanation:

trying to find adjacent, you know the angle and hypotenuse, so use the CAH equation

cos(51) x 7.8 = 4.91 (3 s.f.)

Answer 2

Answer:

use Pythagoras theorem for this question because this is a right angled triangle


Related Questions

Which number is irrational?

Answers

Answer:

Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers. This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ratio of two whole numbers.

quadrilateral CDEF is dilated by a scale factor of 3/4 to form quadrilateral C'D'E'F. What is the measure of side E'F?​

Answers

Answer:

9

Step-by-step explanation:

Side EF is 12 units, so you have to multiply 12 by 3/4, and you get 9.

Answer:

ucgt

Step-by-step explanation:

jtyuck,

ugvh

tell weather the figures are similar.Explain

Answers

No the figures aren’t similar. According to the Angle Angle Similarity Theorem- they should have the same angle degree.

What would the volume be of a box with a width of 2 1/4 inches, length 1 1/2 inches, and height of 4 inches?

Answers

Answer: The answer is 13.5

Step-by-step explanation:

Which of the following options have the same value as 62\%62%62, percent of 454545

Answers

Answer:

Here, the given expression is,

62 % of 45

  ( 1 % =  )

  ( Dividing 62 by 100 )

Hence, Option A and C are correct

The only thing that is the one is %

I need help ASAP!!!!!!

Answers

Answer:

1. YES  2. NO

Step-by-step explanation:

1. Since x=0.121212... and the question is asking for 100x, we need to multiply each side by 100. 0.121212... multiplied by 100 is 12.1212... So YES, 100x is still a repeating decimal.

2. 12.121212... minus 0.121212... would just be 12. This is because if we know that all the numbers behind the decimal point is 0.121212 and so on, 12.121212... minus 0.121212... the numbers behind the decimal would cancel out. So we are left with 12. So NO, the answer for 99x is NOT a repeating decimal.

as a town gets smaller the population of its high school decreases by 5% each year. The senior class has 160 students now. In how many years will it have about 100 students? Write an equation. Then solve the equation without graphing. Write an equation to represent the situation. Let n be the number of years before the class will have 100 students.

Answers

Answer:

T_n = 160(0.05)^(n - 1)

At T_n = 100, n = 1 year

Step-by-step explanation:

We will use geometric progression to solve this question.

Formula for nth term of a GP is;

T_n = ar^(n - 1)

We are told the population of its high school decreases by 5% each year.

This means r = 0.05

senior class has 160 students. Thus a = 160

Thus,T_n = 160(0.05)^(n - 1)

Where n is number of years after now.

We want to find the number of years before the class will have 100 students

Thus;

160(0.05)^(n - 1) = 100

(0.05)^(n - 1) = 100/160

(n-1)In 0.05 = In (100/160)

-2.9957(n - 1) = -0.47

(n - 1) = 0.47/2.9957

n = 1 + 0.1569

n = 1.1569

Approximating to the nearest whole number gives n = 1

A rectangle is 10 feet longer than it is wide. The area is 39 square feet. Find the dimensions of the rectangle​

Answers

Answer:

length = 13 ft

Width = 3 ft

Step-by-step explanation:

Width = w ft

Length = ( w +10 ) ft

Area = 39 square ft

length * width = 39

(w +10)* w = 39

w *w + 10*w = 39

w² + 10w - 39 = 0

w² + 13w - 3w - 3*13 = 0

w(w + 13) - 3(w + 13) = 0

(w + 13) (w - 3) = 0    {Ignore w + 13 , as measurement cannot be in negative}

w - 3 = 0

      w = 3

length = 3 +10 = 13 ft

Can you guys help me

Answers

Answer: the top is 4 and the | is 4 too. The other __ is 8 because 12 - 4 is 8. And the final | is 4 because it’s 8/2

Step-by-step explanation:

i need help with this question please hurry it is almost due!

Answers

Answer:

I see nothing tho

Step-by-step explanation:

12.25 no time to explain HURRY

What is the total surface area??? HELP IM CONFUSED

Answers

Answer:

bottom: 12 x 12 = 144

1st triangle: (12 x 8)/2 = 48

2nd triangle: 48

3rd triangle: 48

4th triangle: 48

144 + 48 + 48 + 48 + 48 = 336 cm squared

what two numbers multiply to 56 and add to -15

Answers

Answer:

-7 and -8  

Step-by-step explanation:

because 7 times 8 equals 56 and negative times a negitive equals a positive and -7 added to -8 equals -15

The pair of numbers which fulfill the given condition 2.6 & -1.76

and -17.6 & 2.6.

What is a quadratic equation ?

An equation is quadratic in form if it can be written in the form of ax + bx + c = 0, where a, b, and c are constants and x is the variable.

Let x and y be the two numbers we're trying to find. We know that:

x * y = 56 (equation 1)

x + y = -15 (equation 2)

y = -15 - x (equation 3)

Substituting equation 3 into equation 1, we get:

x * (-15 - x) = 56

-x² - 15x + 56 = 0

x² + 15x - 56 = 0

Using the quadratic formula, we get:

x = (-b ± √(b² - 4ac)) / 2a

where a = 1, b = 15, and c = -56.

Substituting the values, we get:

x = (-15 ± 20.2) / 2

x = (-15 + 20.2) / 2 = 2.6

x = (-15 - 20.2) / 2 = -17.1

For x = 2.6:

y = -15 - x = -15 - 2.6 = -17.6

So, one possible pair of numbers is x = 2.6 and y = -17.6.

For x = -17.1:

y = -15 - x = -15 - (-17.1) = 2.1

So, another possible pair of numbers is x = -17.1 and y = 2.1.

Therefore, the two numbers that multiply to 56 and add to -15 are approximately -17.1 and 2.6, or vice versa.

To know more about quadratic equation check:

https://brainly.com/question/30098550

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Help me please

Find all real zeros of the polynomial p(x)=2x^3+3x^2-8x-12

Answers

Answer is C B usatestprep

today is such a nice day
plus undertale is now on xbox so im really happy about that too
have a peachy day everyone! :)
nyeh heh heh

Answers

Answer:

The ape counsel likes you expect bananas on ur door step tomorrow.

Answer: yes, very much peach lobotomic day

*refers to gae songez by Waterparx*

*If you've never heard of Waterparks then you just diddly darn dangity doodle better go and listen to them right this minute or suffer the consequences*

jk lol

Undertale is the best tho

Step-by-step explanation:

nyeh

heh

heh

Undertale rulez :>

Waterparks co-rulez :>>>

factor 54-12 with GCF

Answers

Factor of 12 and 56 is 6 .

Eliza estimated she would spend $120 at the grocery store. She actually spent $95. What is the percent error?

Answers

Answer: 26.32% (rounded to the hundredths)

how would you move the green shape exactly over the gray shape using the fewest moves? check only necessary moves

Answers

Answer:

turn and rotate

Step-by-step explanation:

Answer:

Flip then slide

Step-by-step explanation:

I think if you flip the shape it will go the direction of the blue shape then you just need to slide it

The floor of hexagonal barn has a perimeter 1260
feet. The sides of the barn are of equal length. Find
the total area of the floor.

Answers

Answer: 5040

Step-by-step explanation: There are 4 sides which is equal to 1260, 1260 x 4 = 5040

please help! ill mark brainliest

Answers

Answer:

x = 31

Step-by-step explanation:

∠ A and ∠ B are vertical angles and are congruent, then

6x - 25 = 5x + 6 ( subtract 5x from both sides )

x - 25 = 6 ( add 25 to both sides )

x = 31

X is 31 mskshaiwnshs

Y/0.5=16

Please solve the equation ‍♀️

Answers

Answer:

y=8

Step-by-step explanation:

y/0.5=16

multiply each side by 0.5 and you get y=8

Answer:

y = 8

Step-by-step explanation:

Multiply all terms by the same value to eliminate fraction denominators

Cancel multiplied terms that are in the denominator

Multiply the numbers

y = 8

What % of $7,000 = $1,750​

Answers

Answer:

I am sure it is 25%

Step-by-step explanation:

1750:7000*100 =

(1750*100):7000 =

175000:7000 = 25

Now we have: 1750 is what percent of 7000 = 25

tell me if i am correct or wrong!

25% is the correct answer

A band is playing at an auditorium with floor seats and balcony seats. The band wants to sell the floor tickets for $15 each and balcony tickets for $12 each. They want to make at least $3,000 in ticket sales.
1. How much money will they collect for selling x floor tickets?

Answers

Answer:

Not sure

Step-by-step explanation:

Aria has a points card for a movie theater. She receives 85 rewards points just for signing up. She earns 12.5 points for each visit to the movie theater. She needs 185 points for a free movie ticket. How many visits must Aria make to earn a free movie ticket?

Answers

Answer:

8 visits

Step-by-step explanation:

Create an equation, where x is the number of visits to the theater.

Since she gets 12.5 points for each visit, the number of points from visits will be represented by 12.5x.

85 will be added to this, since she gets 85 points for signing up. Then, this will be set equal to 185, since she needs 185 points for the free ticket.

12.5x + 85 = 185

Solve for x:

12.5x = 100

x = 8

So, Aria needs to make 8 visits to earn a free movie ticket

Aria must make 8 visits to earn a free movie ticket when She needs 185 points for a free movie ticket.

By given she has  85 rewards points just for signing up.

She earns 12.5 points for each visit to the movie theater.

She needs 185 points for a free movie ticket.

We must find how many visits does aria has to make to earn a free movie ticket

What is equation?

If two expressions with equal sign is called as equation.

Let  x is the number of visits to the theater.

Since she gets 12.5 points for each visit, the number of points from visits will be represented by 12.5x.

85 will be added to this, since she gets 85 points for signing up. Then, this will be set equal to 185, since she needs 185 points for the free ticket.

12.5x + 85 = 185

12.5x = 100

x = 8

So, Aria needs to make 8 visits to earn a free movie ticket

To learn more about solving equation click here:https://brainly.com/question/19297665

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Savannah has $92,637 in a savings account that earns 9% annually. The interest is not compounded. How much interest will she earn in 5 years​

Answers

Answer:

$41686.65

Step-by-step explanation:

Given data

Principal = $92,637

Rate= 9%

Time= 5 years

The simple interest expression is given as

SI= PRT/100

Substitute

SI= 92637*9*5/100

SI= 4168665/100

SI=$41686.65

Hence the interest is $41686.65

25. Tickets to a movie cost $5 for adults and $3 for students. A group of friends purchased 18 tickets for $82.00. How many adults ticket did they buy?

26. A farmhouse shelters 10 animals. Some are pigs and some are ducks. Altogether there are 36 legs. How many of each animal are there?

Please help with steps

Answers

Hope this helpsssssssssssssssssss

Find the sixth term of a geometric sequence with which a, =-3 and r=-2.​

Answers

Answer: 96

Step-by-step explanation: a is the initial term, and r is the ratio by which a increases. Multiplying -2 by -3 five times gives this sequence: -3, 6, -12, 24, -48, 96

Please help 4x - 7 = 8 - 2x

Answers

Answer:

x=5/2

Step-by-step explanation:

4x-7=8-2x

add 7 to both sides

4x=15-2x

add 2x to both sides

6x=15

6/6x=15/6

x=5/2

(for the last part, i just simplify the fraction. 3 goes into 15 and 6)

simplify (-5)^5 over (-5)^-6

Answers

Answer:

− 48828125

Step-by-step explanation:

you can use a calculator for algebra

write 2 paragraphs using function notation​

Answers

Answer:

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Step-by-step explanation:

From the set {2, 6, 42), use substitution to determine which value of x makes the equation true.
6(x + 40) = 252

Answers

have u got a answer?
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