Can someone who is good at math help me to do this?
10 points

[tex] \cos(x) = \frac{b}{h} \\ \cos(x) = \frac{4 .9}{6.8} \\ \cos(x) = 0.720 \\ x = \cos^{ - 1} (0.720) \\ x = 44 \degree[/tex]

Answer:

x ≈ 44°

Step-by-step explanation:

        We will use a trigonometry function to solve for x. We can see that we have values for the adjacent side and hypotenuse. This means we will be using cosine. Cosine is [tex]\frac{adjacent }{hypotenuse}[/tex]

cos(x) =  [tex]\frac{adjacent }{hypotenuse}[/tex]        [Given]

cos(x) =  [tex]\frac{4.9}{6.8}[/tex]                   [Plug-in the values we have]

x ≈ 43.8969                 [Find the inverse cosine function of both sides]

x ≈ 44°                          [Rounding to nearest degree]

Answer:

w = 60

Step-by-step explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

w + 20 is an exterior angle of the triangle , then

w + 20 = w - 10 + w - 30

w + 20 = 2w - 40 ( subtract w from both sides )

20 = w - 40 ( add 40 to both sides )

60 = w

Answer:

w=60°

Step-by-step explanation:

triangle=180°

angle on a straight line=180°

using that,

we need to find the angle on the same line with that of "w+20°" angle, so we name it as "X"

so, 180-(w+20)=X

expand bracket by multiplying it with the "-"

so it'll be: 180-w-20=X

then rearrange to get like terms together

180-20-w=x

160-w=x

so the missing angle in the triangle is now (160-w)°

now using the angles in a triangle =180°

we add all the angles and equate it to 180, so:

w-30+w-10+160-w=180°

collect like terms again:

w+w-w-30-10+160=180

2w-w+120=180

w+120=180

move 120 to the other side and remember the sign changes, so:

w=180-120

therefore w=60°

now you can substitute w=60 into the triangle and see you'll get 180°

hope that helps

Answer:

Total cost= 99 + 2.97x

Step-by-step explanation:

Giving the following information:

Fixed cost= $99

Variable cost= 3% per person

First, we need to calculate the 3% of 99:

Unitary variable cost= 99*0.03= $2.97

Now, we establish the total cost structure:

Total cost= 99 + 2.97x

x= number of people in attendance

Finally, suppose 200 people attend the party:

Total cost= 99 + 2.97*200

Total cost= $693

Answer:

99+3x

Step-by-step explanation:

Given;

Party cost $99

$3 per person who attends

To Find;

Which expression can Jess use to figure out the total amount of money she owes at the end of the party?

Solve;

Since, we don't know the total amount of money she owes at the end of the party.  Total amount of money she owes at the end of the party = x

Thus, Party Costs ($99) plus per person who attends($3)  and Total amount of money she owes at end of party (x)

As well as,

[A] 33x, [B] 33 + x, and [D] 99x+3 didn't clearly or completely shows  the party's situation. Hence, the Best Answer is [C] 99+3x

[RevyBreeze]

inequation something like that

28 units :)

12 + 16 = 28

Step-by-step explanation:

x=10x=8

8=10x-8

8=9x

divide both side by 9

x=8 out of 9

Kat is painting the four walls of her bedroom. She paints 52 square feet in 2/3 of an hour. How many square feet does she paint per hour?

78 sq. ft

★ 2/3 of an hour ⤏ 2/3 x 60 = 40 minutes

★ An hour ⤏ 60 minutes

Hence , kat can paint 78 sq. ft in an hour

Answer:

B.) The data in country B are more symmetric than the data in country A.

Step-by-step explanation:

mark me brainliest!!

Answer:

B: The data in country B are more symmetric than the data in country A

Step-by-step explanation:

I took the quiz :D

Answer:

y=1000⋅1.05x

Step-by-step explanation:

I took the test.

The function that most effectively represents the given data would be:

D). y = 1000 × 1.05x

Given that,

No. of the months     Account value

    6                                  $1,339

    12                                  $1,798

    18                                  $2,408

    24                                  $3,225

    30                                  $4,321

    36                                  $5,792

    42                                  $7,766

The function that represents the given data effectively:

y = 1000 × 1.05x

This helps in showing the times by which the value variates every 1000.

Thus, option D is the correct answer.

Learn more about "Exponential Function" here:

brainly.com/question/15352175

ΔJKL and ΔXYZ CANNOT be congruent triangles because: the hypotenuse of one triangle is equal in length to the leg of the other triangle.

Congruent triangles are triangles whose corresponding sides are congruent to each other.

The hypotenuse of triangle JKL(KL = 10) is congruent to a leg of triangle XYZ (YX = 10). This implies that they cannot be congruent triangles.

Therefore, ΔJKL and ΔXYZ CANNOT be congruent triangles because: the hypotenuse of one triangle is equal in length to the leg of the other triangle.

Learn more about congruent triangles on:

https://brainly.com/question/11457412

Answer: The answer is C

Step-by-step explanation: Just took the test on edge

Answer:

[tex]one\\whole\\or\\\frac{4}{4}[/tex]

hope this helps!

Using it's concept, it is found that there is a 0.04 = 4% experimental probability of rolling a 5 on the red number cube, NCI, and a 2 on the blue number cube, NC2.

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In an experimental probability, these number of outcomes is taken from previous trials.

Researching this problem on the internet, it is found that out of the 250 rolls, 10 resulted in a 5 on NC1 and 2 on NC2, hence:

p = 10/250 = 1/25 = 0.04.

0.04 = 4% experimental probability of rolling a 5 on the red number cube, NCI, and a 2 on the blue number cube, NC2.

More can be learned about probabilities at https://brainly.com/question/14398287

Answer:

Step-by-step explanation:

The correct answer in this case would be A. There is only 1/8th percent chance of the spinner landing on 4.

There are 8 sections in the circle.  So our denominator will be 8.  We are looking to find how many 4s there are in the circle.  Since there is only ONE 4 in the circle, our nominator will be 1.  So, when we put that together, we get 1/8.

Answer:

1/8

Step-by-step explanation:

Given/To Find:

P(4)

Solve:

Since there are 8 number on the spinner. Which given us denominator will be 8.  And ONLY one of them is 4. Thus, Nominator will be 1.

Hence, that given us 1/8

~Learn with Lenvy~

Answer:

Volume: 75.39 ft^3

Surface area: 100.5 ft^2

Step-by-step explanation:

To find volume, you use the formula V=πr^2h (V=3.14*2^2*6)

To find the surface area you use formula A=2πrh+2πr^2 (A=2*3.14*2*6+2*3.14*2^2)

Based on the absolute deviations and the predicted values, the sum of absolute deviations will be 4.8.

This can be found as:

= ∑ (Observed value - Predicted value)

The observed values are given in the table and the predicted values will be calculated using y = 3.6x - 0.4.

Solving gives:

=  [3 - (3.6 x 1 - 0.4)] + [7 - (3.6 x 2 - 0.4)] + [ 9 - (3.6 x 3 - 0.4)] + [14 - (3.6 x 4 - 0.4)] + [15 - (3.6 x 5 - 0.4)] + [21 - (3.6 x 6 - 0.4)] + [25 - (3.6 x 7 - 0.4)]

= 0.2 + 0.2 + 1.4 + 0 + 2.6 + 0.2 + 0.2

= 4.8

Find out more on absolute deviation at https://brainly.com/question/447169.

Answer:

0.95=95%

Step-by-step explanation:

25,000*0.95=23750

Answer:

5/5

Step-by-step explanation:

If you convert these fractions into decimals, you will get

5/5 = 1

1/5 = 0.2

3/5 = 0.6

5/1 = 5

Hope this helps :)

Answer:

5/5

Step-by-step explanation:

if you want to divide 1 whole into a fraction then the top number would have to be the same as the bottom number, for example 5/5. The top number is 5 which is the same as the numerator which will equal to 1 whole.

While 1/5 and 3/5 is less than 1 whole

And 5/1 is more than 1 whole but its way past the numerator

Answer:

[tex]1 \frac{1}{2}[/tex]

Any numerator that is greater than the denominator is considered an improper fraction but can be converted to a mixed number.

Mixed numbers look like the fraction shown above.

Answer:

Step-by-step explanation:

f(x) = one of two values. There is a value given for what happens when x<>-1 and another when x is equal to minus 1. Which do you want?

Examine what f(x) means. It means that wherever you see an x value on the right, you put in the value shown for x on the left.

Try another example.

f(x) = x^2 - 2x

f(4) = 4^2 - 2*4     Whatever is shown on the left is put into the x on the right.

Same with your question

f(-1) means that the only possible answer is 5

Answer: 0

Step-by-step explanation:

Answer:

B. 28 + 14 = x

Step-by-step explanation:

Susie bought 14 dolls this week. Last week she had 28 dolls. determine how many dolls Susie has now.

using this info we know that we must find the sum of both numbers.

Hence, Answer B has the correct equation

Answer:

the median somewhere in the range of (120,160]

Step-by-step explanation:

the median is always the center of the data points.

There are 100 data points, so the median is the mean of the points 50&51.

Those points are found between 120 and 160 so the median is also found there.

As for an estimate, there isn't one.

Please mark me as brainliest!

Answer:

A

Step-by-step explanation:

Volume of a rectangular prism  = l*b *h

Where base area = l*b

Volume = base area * h

Base area * height = Volume

15 * height = 180

     height = 180/15

     height = 12 inches

Answer:

1/6

Step-by-step explanation:

This is conditional probability.

If heads is tossed, then and only then does he have the option to draw either green or red and have the full 'Head, Green/Red' combination.

So, the probability of the first event - getting heads, is 1/2, since either heads or tails can be flipped with 50/50 chance.

The probability of the second event - picking either green or red, is 1/3, since there are 6 colour options - blue, red, yellow, green, orange and purple - of which 2 can be chosen. Thus, 2/6, which simplifies to 1/3

Now since these are both independent events, we must multiply their probabilities.

1/3 * 1/2 = 1/6