I really need help!!! So confused!!!!!!!!!!!! number 20 not 19

Answers

Answer 1

Answer: $38:24=19:12\Leftrightarrow 19/12 \Rightarrow C$

Related Questions

a plane flies with 54% of its seats empty. if 81 seats are empty what is the total number of seats on the plane
Jenn will use 18 connecting cubes to make a model of a park. The model will be in the shape of a rectangle and will have a height of one cube. In how many different ways can Jenn make the model of the park?
Ok, i need to determine if it can be written as a fraction. Then state the reason.
John purchased 1/4 lbs of hamburger for $0.75. How much did the hamburger cost per pound?
How would you classify the decimal form of 11/ 3 ?

Knitting: You are knitting a blanket. You want the area of the blanket to be 24ft^2. You want the length of the blanket to be 2 feet longer than the width. What should the dimensions of the blanket be?

Answers

You can use factors to solve. Determine all the factor pairs of 24, find the two that are two numbers apart.
1, 24 X
2, 12 X
3, 8 X
4, 6 YES!

Algebraic way to solve using Quadratics:
l = 2 + w

A = lw

A = (2 + w)w Substitute (2 + w) for l

24 = (2 + w)w Substitute 24 in for the area

24 = 2w + w^2 Distribute

w^2 + 2w - 24 = 0 Set equal to 0 (put in standard form)

(w + 6) (w - 4) = 0 Factor

w + 6 = 0 and w - 4 = 0 Set each factor equal to 0.

So w= -6 or w = 4 ... -6 makes no sense for a length! So the width must be 4 and the length will be 4 + 2, which is 6.

A right triangle has side length 9,40, and 41 as shown below. Use these lengths t find cos Y, and tan Y, and sin Y.

Answers

Trigonometric functions are applicable to the right-angled triangles. The value of the Sin(Y), Cos(Y), and Tan(Y) are 0.976, 0.219 and 4.445.

What are Trigonometric functions?

$\rm Sin \theta=(Perpendicular)/(Hypotenuse)\n\n\nCos \theta=(Base)/(Hypotenuse)\n\n\nTan \theta=(Perpendicular)/(Base)$

where perpendicular is the side of the triangle which is opposite to the angle, and the hypotenuse is the longest side of the triangle which is opposite to the 90° angle.

Given to us

XY = 41

YZ = 9

XZ = 40

In ΔXYZ for ∠Y,

$\rm Sin \theta=(Perpendicular)/(Hypotenuse)\n\n\rm Sin (\angle Y)=(XZ)/(XY)\n\n\rm Sin (\angle Y)=(40)/(41)\n\n$

$\rm Cos \theta=(Base)/(Hypotenuse)\n\n Cos (\angle Y)=(ZY)/(XY)\n\n Cos (\angle Y)=(9)/(41)$

$\rm Tan \theta=(Perpendicular)/(Base)\n\nTan \theta=(XZ)/(ZY)\n\nTan \theta=(40)/(9)$

Hence, the value of the Sin(Y), Cos(Y), and Tan(Y) are 0.976, 0.219 and 4.445.

Learn more about Trigonometric functions:

brainly.com/question/6904750

Final answer:

The cos Y, sin Y, and tan Y of a right triangle with side lengths of 9, 40, and 41 can be calculated using trigonometric ratios. Cos Y equals 9/41, sin Y equals 40/41, and tan Y equals 40/9.

Explanation:

In a right-angled triangle, we use the concept of trigonometric ratios which involves sine (sin), cosine (cos) and tangent (tan). Here, the side length 9 would be considered the adjacent side (a), the side length 40 would be considered the opposite side (b), and the side length 41 would be the hypotenuse (c).

The trigonometric ratios can be determined as follows:

Cosine (cos) Y = adjacent/hypotenuse = 9/41
Sine (sin) Y = opposite/hypotenuse = 40/41
Tangent (tan) Y = opposite/adjacent = 40/9

This would be the solution to finding the cos Y, tan Y, and sin Y with respect to angle Y.

Learn more about Trigonometric Ratios here:

brainly.com/question/29156330

#SPJ3

How do I find the surface area of a square pyramid

Answers

You do 14 times 14 then that answer times 22.96 then divide by 3

Evan’s car gets approximately 20 miles per gallon. How many feet can he drive with 1 pint of gas?

Answers

In the question, it is already given that Evan,s car gets approximately 20 miles per gallon.
So In 1 gallon of gas, Evans car gets approximately = 20 miles.
We also know that
1 mile = 5280 foot
20 miles = 105600 foot
1 gallon = 8 pints
Then
we come to know that
In 8 pints Evan's car travels approximately = 105600 feet
In 1 pint Evan's car travels approximately = 105600/8 feet
= 13200 feet
So Evan's car will travel 13200 feet in 1 pint of gas.

2.5 miles
your welcome

Write a word problem that you can solve by multiplying a mixed number by a whole number. Include a solution.

Answers

Answer:

A whole number is an integer, and a mixed number is a whole number and a fraction.

Now, let's make the problem.

"Mike has 3 pies and half of one (here we have the mixed number 3 (1/2), If he sells each pie for $4. How much money did he can win?"

this is the number of pies that he has times 4 dollars:

M = (3 + (1/2))*$4 = 3*$4 + (1/2)*$4 = $12 + $2 = $14

bob has 3 halves of an apple, he eats 2 thirds of it. how much did he not eat.
Solution: 1 half

Alexia started babysitting when she was in high school. She has built a reputation for herself and has become popular among the neighborhood parents. Alexia charges $10/h and gets a $5 automatic tip. Alexia needs $75 to buy a present for her mother. She wants to find out the minimum number of hours she needs to babysit at one job to get the money she needs. (5 points) a. Write an inequality to show how to solve this problem. Identify what the variable is and what it represents. b. Solve the inequality to find out the minimum number of hours Alexia needs to babysit. Show Your Work.

Answers

h= number of hours worked.

10h+5 ≥75 (1)

10h ≥ 70 (2)

h ≥7 (3)

Other Questions

10x-3-2x=4 solve the equation and show your work

PLEASE HELP!Which of these statements is true for f(x)=(9/10)^x?A. the range of f(x) is y>9/10 B. The y-intercept is (0, 1). C. It is always increasing. D. The domain of f(x) is x>0

Find the midpoint of A and B where A has coordinates (2,7)and B has coordinates (6,3).

48 is what percent of 300?And explain the answer for a 6th grader to understand.