Can someone help me understand this

Can Someone Help Me Understand This

Answers

Answer 1

Answer:

Step-by-step explanation:

If we define the line QR to be some variable of distance 'x', we can use the relationship of cosine to figure out the length of QR.

Remember, cosine is adjacent of the angle divided by the hypotenuse of the angle. So, if we take this x value over the longest side (hypotenuse), we get the value of cos(theta).

cos(25) = x/7

Multiply both sides by 7 to get:

7*cos(25) = x

Let your calculator do the work to get:

x = 6.3


Related Questions

The cost of a 4 pack of apple juice is $ 2.24. Write an equation that relates the cost in dollars, y, to the number of apple juice cartons, x.

Answers

Answer:

Cost = y/x

Step-by-step explanation:

The cost of a 4 pack of apple juice is $ 2.24.

We need to write an equation that relates the cost in dollars, y, to the number of apple juice cartons, x.

As 4 packs = $2.24

1 pack = 0.56

So, the equation can be :

Cost = y/x

It t takes 5 identical robots 12 days to paint a long straight wall. How many robots will it take to paint wall in 20 days?

Answers

12=5
12/5=2.4
20/2.4=8.3
9 robots

Answer:

12=5

12/5=2.4

20/2.4=8.3

9 robots

Step-by-step explanation:

first three terms of a sequence are given. Round to the nearest thousand (if necessary) 152,149,146... Find the 30th term

Answers

Answer:

65

Step-by-step explanation:

use the following equation

aₙ=a₁+(n-1)d

Where d is the common difference

n is the term

a₁ is the first term

the common difference is -3 (149-152)

this means we have

152+(30-1)*-3

Compute this and get

65

help! step by step please!

Answers

Answer:

so it looks like it's $245 or it's $85

Step-by-step explanation:

because your equation is 5n+45

$5 dollars earned for every n(magazine) sold.

Alternatively:

if she gets 5 dollars for every 10 sold then after selling 40 it would be

40/5=8 then it becomes 8*5+45=85

PLS HURRY WORTH 50 POINTS AND WILL MARK BRAINLIEST!!!!

A survey of a group of seventh-graders and a group of teachers at a local middle schoolers asked how many siblings they each have. The dot plots below show the results.

students:

x
x
x x
x x x
x x x
x x x x x
x x x x x
0 1 2 3 4 5 6 7 8 9

teachers:


x
x x
x x x x
x x x x x
x x x x x x x x
0 1 2 3 4 5 6 7 8 9

What is the closest to the difference between the means?

A. 0.5
B. 1.0
C. 1.5
D. 2.0​

Answers

the answer is 1.5

Step-by-step explanation:

I took this test

Answer:

1.5

Step-by-step explanation:

Find the quotient of the complex numbers. Express your answer in
trigonometric form.
z = 7(cos15° + i sin15)
zz = 2(cos1 10° + i sin 110)
HELP ASAP!

Answers

Answer:

answer is c

Step-by-step explanation:

Rachel needs to write 3 book reports with b pages
and 3 science reports with s pages during the
school year. Write an algebraic expression for the
total number of pages Rachel will need to write.

Answers

Answer:

90% of people marry their 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

Step-by-step explanation:

Which postulate proves that the triangles below are similar?
-SSS
-AA
-SAS
-these triangles are not similar

Answers

Answer:

Option (4)

Step-by-step explanation:

From the picture attached,

Side lengths of the triangles have been given in the picture attached.

If these triangles are similar, their corresponding sides will be proportional.

By this property of similarity,

[tex]\frac{19.5}{5}= \frac{20}{8}[/tex]

3.9 = 2.5

Which is not true.

Therefore, these triangles are not similar.

Option (4) will be the answer.

Tina and Tammy both get paid an equal hourly wage of $12 per hour . This week , Tina made an additional $45 in overtime . Select the expression below that represent the weekly wages of both if x = the number of hours Tina worked this week and y = the number of hours Tammy worked this week .

Answers

Answer:u wrong it’s 12)63)?62?)/?

Step-by-step explanation:

Henri and Talia are mixing paint for an art project. They mixed p liters of red paint, 0.6 liters of blue paint, and p – 0.4 liters of white paint. They then divided the mixture evenly into 2 jars. If each jar contains 2.4 liters of paint, how much red paint did they use? Use numbers to fill in the blank.

Answers

Answer:

I think the answer is 3.8.

Step-by-step explanation:

Because there is 0.6 for the blue paint and 0.4 for the white paint, and p=red paint. If you divide all 3 of them equally into 2 jars, you have add 0.4 and 0.6 together and then divide by 2, then substract it from 2.4. You will get 1.9, then multiply 1.9 by 2, that is how much Henri and Talia used for the red paint, which is 3.8 liters.

Selma spent

3/10 of her allowance on a new backpack. What percent of her allowance did she spend?


Selma spent ?% of her allowance on a new backpack.

Answers

Answer:

30%

Step-by-step explanation:

Selma spent 3/10 of her allowance on a new backpack.

Hence, the percent of her allowance that she spent is calculated as:

Fraction of allowance spent on Backpack × 100

= 3/10 × 100

= 0.3/1 × 100

= 30%

Therefore, Selma spent 30% of her allowance on a new backpack.

Is this in quadrant 1,2,3 or 4 helppp plzzz I will mark brainliestttt

Answers

that would be in quadrant 1

Use the formula v = u + at to find the velocity, when
The initial velocity is 3m/s.
The Acceleration is 1.5m/s Squared.
The time is 7 seconds.

Answers

Answer:

[tex]v = u + at \\ v = 3 + (1.5 \times 7) \\ v = 3 +10.5 \\ \boxed{v = 13.5 \: m {s}^{ - 1}} [/tex]

13.5 m/s is the right answer.

95, if g> 0?
Which expression is equivalent to
OA.
ole
OB. 596
O c.
TOT
con la
OD.
go
Reset

Answers

Answer:

equivalent expression of [tex]\sqrt[6]{g^5},\: if\:g>0[/tex] is [tex]\mathbf{g^{\frac{5}{6}}[/tex]

Option D is correct option.

Step-by-step explanation:

We need to find equivalent expression of [tex]\sqrt[6]{g^5},\: if\:g>0[/tex]

The equivalent expression can be found using exponent rules.

We know that: [tex]\sqrt[6]{x} = x^{\frac{1}{6}}[/tex]

Using this and solving our given expression

[tex]\sqrt[6]{g^5},\: if\:g>0\\=(g^5)^{\frac{1}{6}[/tex]

Using exponent rule: [tex](a^m)^n=a^{m*n}[/tex]

[tex]=g^{\frac{5}{6}[/tex]

So, equivalent expression of [tex]\sqrt[6]{g^5},\: if\:g>0[/tex] is [tex]\mathbf{g^{\frac{5}{6}}[/tex]

Option D is correct option.

What's the maximum amount of money you should spend on a Modern Art painting worth 30k if you had to pay 15% tax?

Answers

Answer:

Tax would be 4500$

Step-by-step explanation:

15/100 = x/30000

Do 15 x 30000 = 450000

then divide 450000 by 100 = 4500

Which set of numbers forms a right triangle?
A. 3,4,5
B. 5, 9, 13
C. 7, 7, 12
D. 8, 15, 20

Answers

Answer:

C

Step-by-step explanation:

If you think about it hard enough, and look at it real hard, you can see. Think of like a capital L. 7 tall and 7 wide. I'm not sure but thats what I think.

2. Simplify: -7(11 - 40 + 13d)

Answers

689659 is like the correct thing if
203 + 13d. you cannot times 7 and 13d bc 7 does not have a variable

Miranda is buying yarn so she can crochet scarves for her family. She likes the Furry Fibers
brand best. At the store, she finds a 7-ounce roll of Furry Fibers yarn for $8.33 and a 16-
ounce roll for $18.72. Which size roll is the better value?
7-ounce or
16-ounce

Answers

Answer: 16 ounce

Step-by-step explanation:

16 ounce is 1.17 per ounce but 7 ounce is 1.19 per ounce in real life the bigger is usually a better deal anyway

Answer:

YOOOOOOOOOOOOOOOOOOO AAAAAAAAAAAAAAAAAH the answer is 16 ounce

Step-by-step explanation:

Bom bam bop ignore this

What is the slope of the line

Answers

The answer is B or 4
This is because the line is positive line. And you have to do rise/run
The rise is 4 and the run is 1.
4/1=4
Hope this helps have a good day! :)

Answer:

B) 4

Step-by-step explanation:

Use the slope formula:

slope [tex]m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Let:

[tex](x_1 , y_1) = (1 , -2)\\(x_2 , y_2) = (2 , 2)\\[/tex]

Plug in the corresponding numbers to the corresponding variables:

slope:

[tex]m = \frac{2 - (-2)}{2 - 1} \\m = \frac{2 + 2}{2 - 1}\\m = \frac{4}{1} = 4[/tex]

B) 4 is your answer.

~

A prom dress is on sale for $350. If the original price of the dress was $500, what percent of discount was used during the sale?

Answers

the percent of the discount would be 70%

Answer:

30%

Step-by-step explanation:

How to solve 72 + x+x + 52+80°

Answers

Answer:

2x+204 hope this helps pls give brainlist

Step-by-step explanation:

Зp - р
Please lend me a helping hand

Answers

Answer:

Step-by-step explanation:

If scientific notaion it would be 3p^2 if not it would be 3p times 2

Answer: 3p^2

Step-by-step explanation:

i don't think there is much of an explanation for this one, you are simply multiplying by P again, so you just turn it into an exponent. :)

9² • (1+4) + 7 – 3 • 4 =

Answers

The answer is your looking for is 400

Answer:

400.

Step-by-step explanation:

2y = 6x + 10 and y = 2x + 4

Answers

Answer:

x=-1, y=2

Step-by-step explanation:

2(2x+4)=6x+10

2x=-2

x=-1

y=2(-1)+4

y=2

What is the least common denominator For 3/8 and 3/10

Answers

Step by Step Solution. Least Common Multiple is : 120. Calculate Least Common Multiple for : 3, 8 and 10. Factorize of the above numbers : 3 = 3. 8 = 23 10 = 2 • 5. Build a prime factors table. ...

Stephen went to Game Stop to buy a new Xbox hat is $499 with 15% off. He has a coupon for an
additional 5% off. What is the final cost for the new Xbox?
$99.80
$374.25
$399.20
$402.94

Answers

Answer:

c. $399.20

Step-by-step explanation:

multiply 499 by .20 and get 99.8 subtract this from 499 get 399.20

Factorise fully
4y - 6

Answers

The answer is 2(y-3)

Create two equivalent rates to 65 km/h with units for distance and time that are not kilometres and hours. At least one should be a unit rate.

Answers

Answer: 18.05556

Step-by-step explanation: 65 Kilometer/Hour (km/h) =. 18.05556 Meter/Second (m/s) Kilometer/Hour : Kilometers per hour (also spelling: kilometer per hour) is a unit of speed, defined as the number of kilometers travelled in one hour. The symbol of kilometer per hour is km/h or km•h−1.

Hopefully this helps :D

The units for distance and time are 3250/3 m/min and 325/18 m/s

What is unit rate?

A unit rate means a rate for one of something. We write this as a ratio with a denominator of one.

For example, if you ran 70 yards in 10 seconds, you ran on average 7 yards in 1 second. Both of the ratios, 70 yards in 10 seconds and 7 yards in 1 second, are rates, but the 7 yards in 1 second is a unit rate.

Given that, we need to create two equivalent rates to 65 km/h with units for distance and time that are not kilometers and hours.

So,

65 km/h = 65 x 1000 m / 60 min = 3250/3 m/min

65 km/h = 65 x 1000 m / 3600 sec = 325/18 m/s

Hence, the units for distance and time are 3250/3 m/min and 325/18 m/s

Learn more about unit rates, click;

https://brainly.com/question/29781084

#SPJ3

In the morning, a farm worker packed 10 pints of raspberries every 4 minutes. In the afternoon, she packed 3 pints of raspberries every 2 minutes. What was the difference between her morning and afternoon packing rates, in pints per hour?

Answers

Answer:

In the morning

(3/4) (strawberries / minutes) * (60/1) (minutes / hours) = 45 (strawberries / hours)

in the afternoon

(2/3) (strawberries / minutes) * (60/1) (minutes / hours) = (40 strawberries / hours)

the difference between your morning and afternoon packing rates, in pints per hour is  45-40 = 5 (strawberries / hours)

Step-by-step explanation:

.

Answer:

60 pints

Step-by-step explanation:

10 pints every 4 minutes = 10(15) pints every 4(15) minutes which is the same as 150 pints per 1 hour

3 pints every 2 minutes = 3(30) pints every 2(30) minutes which is the same as 90 pints per 1 hour

150 - 90 = 60 pints difference

2α – 10 = 12 pleaseeeeeee ! help me with this one !!!!!​

Answers

a = 11 . pls mark as the brainiest answer
I think a will be equal to 11 I’m not fully sure though
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