Mathematics High School

help plz, will mark brainliest

Answers

Answer 1

Answer:

option c.........it should be tan(20)=x/15.035

Answer 2

Answer:

Step-by-step explanation:

Related Questions

3. Karen is making 14 different kinds
of greeting cards. She is making 12
of each kind. How many greeting
cards is she making?

Answers

It would be 168. Just multiply 14 and 12.

The scatter plot below shows the relationship between the latitude of cities and their average January temperature.
Which of the following is the best estimate of the average change in temperature associated with a 1-degree increase in latitude?

Choose 1 answer:

(Choice A)
-15 F
(Choice B)
−2.5 F
(Choice C)
2.5 F
(Choice D)
15 F

Answers

Choice A will be the correct answer !! Hope this helps

the part of it is c because of the quizz

The circle has center O . Its radius is 6 cm , and the central angle a measures 40. What is the area of the shaded region? Give the exact answer in terms of , and be sure to include the correct unit in your answer.

Answers

The circle has center O. Its radius is 6 cm, and the central angle measures 40. What is the area of the shaded region? Give the exact answer in terms of π, and be sure to include the correct unit in your answer.

Answer:

= 4π

Step-by-step explanation:

Area of the shaded region

Sector area = (central angle)/360° x area of circle

= (central angle)/360° x πr²

= 40°/360° x π6²

= 1/9 x 36π

= 36π/9

= 4π

2. Simplify the expression: 4(8) + 3(x - 6)

Answers

3x + 14 there you go

Answer:

3x+14

Step-by-step explanation:

4(8)+3(x-6)

=32+3x-18

=3x+14

1) Calculate the distance between point A: (22,12) and point B: (30,27)

Answers

Answer:

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√(30 - 22)² + (27 - 12)²

√(8)² + (15)²

√ 64 + 225

√289

= 17

If a=3 and b=7, find the value of
a + b
can someone give me an answer pls

Answers

Answer: 10

Step-by-step explanation:

a+b where a=3 and b=7 so (3)+(7)=10

Answer:

Step-by-step explanation:

If you add 3+7 (a+b), you'll get 10. Hope that helps!

What is the slope of the line that passes through the points (-2, 8)(−2,8) and (-22, 8) ?(−22,8)? Write your answer in simplest form.

Answers

Answer:

Step-by-step explanation:

The slope of the line passing through two given points: [tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

(-2, 8) ⇒ x₁ = -2, y₁ = 8

(-22, 8) ⇒ x₂ = -22, y₂ = 8

So, the slope:

[tex]m=\dfrac{8-8}{-22-(-2)}=\dfrac{0}{-20}=0[/tex]

The marked price of a refrigerator is $1660. John has a coupon for 15% off. Find the selling price of the refrigerator with the coupon

Answers

Answer:

answer is selling price=$1411

Step-by-step explanation:

discount percentage=100%-15%=85%

Ok thank you That helped me too

HELP ASAP PLS!! An explanation too pls

Answers

Answer:

Step-by-step explanation:

Polygon is regular when all angles are congruent and all sides are congruent.

So, the given polygon is square.

A local hotel has 158 rooms. Due to a scouting event, the entire hotel booked except for two rooms. If the girls scouts are using three times as many rooms as the boy scouts, how many rooms are the boy scouts using?

Answers

Answer:

Step-by-step explanation:

Let, total rooms girls booked be x and total rooms girls booked be y.

entire hotel was booked except two rooms.

so, total = 158-2 = 156

x+ y = 156

this is equation 1.

also, girls are using three times more room than boys.

so, y=3x

substituting y=3x in 1st equation,

x+ 3x = 156

or, 4x = 156

or, x= 156/4

x= 39

Translate the sentence into an inequality five substracted from the product of 8 and a number is at most 25 use the variable x for unknown number

Answers

Answer:

8x - 5 ≤ 25

Step-by-step explanation:

Given that the unknown number is x

product of 8 and a number is expressed as 8x

five substracted from the product of 8 and a number is expressed as 8x - 5

Since this expression is at most 25, the inequality sign that you are to use will be ≤ (less than or equal to) since it cannot be greater than 25. Hence the required inequality expression is 8x - 5 ≤ 25

I can’t download anything so if anyone can find a way to help with this I’d be grateful (^_^)

Answers

It's hard to explain by words so sorry if you don't understand. For the graphing part, starting from (-3, 0), plot points in (1, 2), (6, 3), and connect them. The end of a line should be (10, 3.5). You will understand better if you use graphing calculator.

The answer of a second question is {x|x is greater or equal to -3.

luis has a cooler full of soda. For every 5 cans of coke there are 3 cans of sprite. if there are 25 cans of coke, how many cans of sprite are there?

Answers

Answer: 15 cans of sprite

Step-by-step explanation:

5 cans of coke and 3 cans of sprite

then its

25 cans of coke and 15 cans of sprite

Lia brought 21 shirts and plants. Her total was $357. Pants cost $25 each, and shirts cost $14.50 each. How many of each item did she buy? Show your work
Will give points

Answers

Answer:

x=5 and y=16

Step-by-step explanation:

x = number of pants

y = number of shirts

Set up equations:

25x + 14.5y = 357x + y = 21

Set the equations up as a system:

25x+14.5y=357

x+y=21

Steps:

Solve the system by substitution.

(You can also solve this system by elimination.)

25x + 14.5y= 357

x + y = 21

Step 1: Solve x+y=21 for x:

(x + y) − y = (21) − y(Subtract y from both sides)

x = −y + 21

Step 2: Substitute −y + 21 for x in 25x + 14.5y = 357:

25x + 14.5y = 357

25(−y + 21) + 14.5y = 357

−10.5y + 525 = 357 (Simplify both sides of the equation)

(−10.5y + 525) − 525 = (357) − 525(Subtract 525 to both sides)

−10.5y = −168

−10.5y / −10.5 = −168 / −10.5 (Divide both sides by -10.5)

y = 16

Step 3: Substitute 16 for y in x = −y + 21:

x = −y + 21

x = −16 + 21

x = 5 (Simplify both sides of the equation)

Answer:

x=5 and y=16

Can someone find the area of the rhombus?

Answers

Answer:

A=270 in^2

Step-by-step explanation:

A=d1*d2/2 formula for A using the diagonals

A=45*12/2

A=540/2

A=270 in^2

The equation of an ellipse is x2/16 + y2/36= 1 , and the ellipse is centered at the origin. Find the vertices of the major axis and determine whether the ellipse has a horizontal or vertical major axis.

Answers

Answer:

steps below

Step-by-step explanation:

x²/16 + y²/36= 1

x²/4² + y²/6²= 1

Eclipse center ed origin: standard formula

²/radius of minor axis + y²/ radius of major axis =1

Vertices of major axis: (6 , 0) and (-6 , 0) ... horizontal

vertices of minor axis: (0 , 2) and (0 , -2) ... vertical

The ratio R S R T = 1 2 . Point R is at (2, 5) and point T is at (–4, –7). Which could be the coordinates of S? A. (–1, –1)

Answers

Answer:

The coordinates of the point S could be;

A. (-1, -1)

Step-by-step explanation:

The given parameters are;

The ratio of the length of the line RS to the length of the line RT = 1:2

The coordinates of point R = (2. 5)

The coordinates point T = (-4, -7)

Therefore, we have;

[tex]\dfrac{The \ length \ of \, RS}{The \ length \ of \, RT} = \dfrac{1}{2}[/tex]

[tex]\therefore {The \ length \ of \, RS} = \dfrac{1}{2} \times The \ length \ of \, RT[/tex]

The length of the line RT = √(((2 - (-4))² + (5 - (-7))²) = 6·√5

Therefore, we have;

[tex]{The \ length \ of \, RS} = \dfrac{1}{2} \times 6\cdot \sqrt{5} = 3 \cdot \sqrt{5}[/tex]

When the coordinates of the point S = (-1, -1), we have;

The length of the line RS = √(((2 - (-1))² + (5 - (-1))²) = √45 = 3·√5

Therefore, the coordinates of the point S could be (-1, -1)

If 9x83=747 then 747+9+83=?

Answers

Answer:

747+9+83=839

Step-by-step explanation:

We can use 9x83=747 as a extra help to get the answer. Say you need the answer above (which I gave you) so you get 9x83 as an example to help figure out 749+9+83=839.

What is the equation of the line with a y-intercept of −10 and a slope of 3?

y
=
−
10
x
−
3

y = − 10 x − 3

y
=
−
10
x
+
3

y = − 10 x + 3

y
=
3
x
−
10

y = 3 x − 10

y
=
3
x
+
10

y = 3 x + 10

Answers

tem que ser portugeis lindo tchua feio

Step-by-step explanation:

aaahahahahajababababaabb ano reposta e eeeeee 3992

Paper clips are sold in boxes of 1000.
Each box costs £15.40

The table below shows the discount offered for large orders.

Ethan orders 5 boxes of paper clips.

Work out the amount of discount Ethan gets.

Answers

Answer:

6.5%

Step-by-step explanation:

1000 in a box and he orders 5 boxes.

1000x5= 5000

So he orders 5000 paper clips

1 box is £15.40 and he order 5, so £15.40x5= £77

£77 is between £55 and £79.99 so he will get 6.5% discount.

After the discount he will pay £71.99

I NEED HELP ASAP
8-4: MathXL for School: Practice & Problem Solving
O Assignment is past due (03/12/
8.4.PS-11
Question Help
Z1 and 22 are complementary angles. The measure of Z1 is 38°
The measure of Z2 is 4x. Find the value of x. The figure is not drawn
to scale.
1
The value of x is
va
VI
(1,1)
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Enter your answer in the answer box and then click Check Answer
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Answers

Answer:

your answer will be x=13

Step-by-step explanation:

hope it helps.

What is the value of the expression: 2/10 ÷ 5/4?
1/50
4/10
8/50
1/2

Answers

Answer:

8/50

Step-by-step explanation:

2/10 x 4/5 = 8/50

Hope that helps!

4/25 came up so I’m not sure/

plzz help this is due today

Answers

Answer:

Major Arc

Step-by-step explanation:

because it's bigger then half of the circle

Answer:

it's probably a major arc because it is bigger than half of a circle

−4(−18+0.3) ineed help

Answers

70.8 is the answer.

Michelle has four large storage chests in her basement. each storage chest has a base of 8 square feet. Three of the storage chests have a height of 2 feet and one storage has a height of 3 feet. What is the total volume, in cubic feet, of the four storage chests?

Answers

If the base has an area of 8, and we’re dealing in whole numbers, then the dimensions of three of the chests are 2x2x4. The last one is 2x3x4. Just multiply the dimensions by each other to find the volume of one unit, and then add them all together. Hope that helps!

If a=3 and b=7, find the value of
2a + 3b

Answers

Answer:

Step-by-step explanation:

here's your solution

=> a = 3

=> b= 7

=> the given expression is ( 2a + 3b)

=> bu putting value of a and b in equation

=> we get , (3*2 + 7*3)

=> 27

hope it helps

lara chooses a number less then 20 she divides it by 2 and then adds 6 she then divides whis result by 3 her answer is 4.5 what was the number she started with

Answers

Answer:

Lara started with the number 15.

Step-by-step explanation:

In order to solve this problem, you can write an equation representing the situation. You can do this by applying the described actions to a variable; I'll use n for this:

(n ÷ 2 + 6) ÷ 3 = 4.5

Now, you can just solve this equation for n:

(n ÷ 2 + 6) ÷ 3 = 4.5 (given)

n ÷ 2 + 6 = 13.5 (multiply both sides by 3)

n ÷ 2 = 7.5 (subtract 6 from both sides)

n = 15 (multiply both sides by 2)

So, now you know that Lara's starting number was 15.

what is 5.951 to the hundred

Answers

Answer:

5.95

Step-by-step explanation:

The answer to that question is 5.1000

can sombody help me pls

Answers

Answer:

Step-by-step explanation:

First you start with -5+3/4 which is -4.25 then you subtract 1/8 which is 4.375

Then you subtract it by 1 to find x. So your answer is 3 3/8

Brainlest please

Please
Please
Please

Answers

Answer:

Step-by-step explanation:

∠BEF = ∠CFE {Alternate interior angles}

5x - 10 = 4x + 20 {Subtract 4x from both sides}

5x - 4x - 10 = 20

x - 10 = 20 {Add 10 to both sides}

x = 20 +10

x = 30°

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