Mathematics High School

Someone please help will mark as brainliest

Answers

Answer 1

Answer:

Perpendicular(p)=21

base(b)=20

hypotenuse(h)=29

Step-by-step explanation:

Now by using the formula:

cos A=b/h

i.e 20 by 29

Related Questions

14. Twelve more than seven times a number equals the number less six

Answers

Answer:

The number is -3.

Step-by-step explanation:

Set up an equation:

Variable n = number

12 + 7n = n - 6

Assuming the question is solve for n, isolate the variable:

Subtract n from both sides:

12 + 6n = -6

Subtract 12 from both sides:

6n = -18

Divide by 6 on both sides:

n = -3

Check your work:

12 + 7(-3) = -3 - 6

12 - 21 = -3 - 6

-9 = -9

Correct

12+7n=n-6
12+6n=-6
6n=-18
n=-3

There are 60 boys in the third year, 24 of whom study chemistry. What percentage of third year boys study chemistry.

Answers

Answer:

40%

Step-by-step explanation:

24/60 = .4

Answer:

40%

Step-by-step explanation:

Divide the total by the amount possible.

Please answer the following question:

Answers

Answer:

circumference=πd

3.142×(7.5+7.5)

3.142× 15

47.13

Mean: also called the average. The mean is found by adding all the numbers in the set and then dividing that total by the number of values in the set Median: is the middle value when the numbers are in order from least and greatest. If there are two numbers left in the center, add the 2 numbers together and then divide that total by 2. Mode: the number that is listed most often Range: the difference in the largest and the smallest number. 1. Given the data set 18, 3, 22, 30, 15 Find the following: Mean_________ Median_________ Mode____________ Range____________

Answers

Answer:

Mean: 17.6 Median: 18 Mode: N/A Range: 27

Step-by-step explanation:

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Answers

Answer:

Number 2

Step-by-step explanation:

Predation refers to a flow of energy between two organisms, predator and prey. In this interaction, the prey loses energy, and the predator gains energy

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Answers

Answer: 19, 18.71, 1. 19, 2. hundredth

Step-by-step explanation:

Round up as 7 is greater than 5, round up since 6 is greater than five, same as first

What is the value of x in the equation 2x + 3y = 36, when y = 6?
08
9
27
36

Answers

2x+3(6)=36
2x+18=36
subtract 18 both sides
2x=18
x=9

The graph below shows the equation y=2x+4
2
In the space below, describe the effect on this graph if the equation were changed to y=3x+4

Answers

Answer:

C. the lines will be intersecting but neither parallel nor perpendicular

Step-by-step explanation:

changing the x coeficient means you're changing the gradien/ slope. so it will intersecting in one point of y if the x = 0

y = 2x + 4

y = 2(0) + 4 = 4

y = 3x + 4

y = 3(0) + 4 = 4

Answer:

Step-by-step explanation:

If you type this equation onto the graphing calculator you can clearly tell the lines intersect therefore the right answer is the last one.

Solve by graphing.
2x +y=1
x – 2y = 8
The solution to this system of equations is:
x-coordinate:
y-coordinate:

Answers

Given:

The given system of equations is:

[tex]2x+y=1[/tex]

[tex]x-2y=8[/tex]

To find:

The solution to this system of equations by graphing.

Solution:

We have,

[tex]2x+y=1[/tex]

[tex]x-2y=8[/tex]

The table of values for first equation is:

x y

0 1

1 -1

Plot the points (0,1) and (1,-1) on a coordinate plane and connect them a straight line.

The table of values for second equation is:

x y

0 -4

2 -3

Plot the points (0,-4) and (2,-3) on a coordinate plane and connect them a straight line.

The graphs of given equations are shown in the below figure.

From the below figure, it is clear that the lines intersect each other at point (2,-3). So, the solution of the given system of equations is (2,-3).

Therefore, the solution to this system of equations is:

x-coordinate: 2

y-coordinate: -3

w(x) = −3x− 4; Find w(7)

Answers

Step-by-step explanation:

Given

w(x) = - 3x - 4

Now

w(7) = - 3 * 7 - 4

= - 21 - 4

= - 25

Hope it will help :)❤

Whats the value of x?

Answers

Answer:

x=3

Step-by-step explanation:

both of the two sides equal the same so it would be 3x=9x-18

solve you get x=3

What is the equation of a line parallel to y=-3/2x+9

Answers

Answer:

y = - [tex]\frac{3}{2}[/tex]x

Step-by-step explanation:

Parallel lines are two lines that have the same plane and slope but never intersect.

Please help me! Best answer gets brainliest!

Answers

Answer:

Step-by-step explanation:

Answer:

This probably isn't much help but I got xy^5. It isn't on the multiple-choice but xy^6 is the closest to my answer so I would guess it's that.

step-by-step explanation:

Identify the solution(s) of v2+11v−26=0.

Answers

Answer:

i solved for v and got

v = 2, -13

i hope this helps :]

HELP NEEDED ASAP!!! FASTEST CORRECT ANSWER GETS BRAINIEST!!!

Determine which of the following sampling methods is the best way to select a group of people for a study if you are interested in making statements about the larger population?

•Convenience sampling
•Random sampling
•Purposive sampling
•Quota sampling

Answers

Answer: C. Purposive Sampling

Step-by-step explanation:

This sampling is the use of a portion of the population to represent the whole or larger population. If you wanted to make statements about the larger population this would be the best way to go about it.

1. With the points
A(-4,-2) B(1, -3) C(2,-5) D(-1, 7).
What are the new points if the scale factor of dilation is 3?

Answers

Answer:

B': (-12,15)

Step-by-step explanation:

Please help me answer this!!

Answers

It’s 102 1/6 would be 17

To solve for m, divide both sides by 5/6

M = 85/ 5/6

When dividing by a fraction flip the fraction over and multiply

M = 85 x 6/5 = (85 x 6)/5 = 510/5 = 102

He drove 102 miles on Monday

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the two dot plots below compare the forearm lengths of two groups of school children.

based on visual inspection of the dot plots, which group appears to have the longer average forearm length?

A. Group B, because five children have a forearm length longer than 12 inches.
B. Group B, because a child in the group has the least forearm length of 10 inches.
C. Group A, because no child in the group has a forearm length longer than 12 inches.
D. Group B, because four children in the group have the least forearm length of 10 inches.

Answers

answer is A

please give brainliest:)

Answer:

A ;)

Step-by-step explanation:

Person above was right.

a rectangle has sides of length 2 millimeters and 8.1 millimeters. What is the perimeter?

Answers

Answer:

20.2 mm.

Step-by-step explanation:

2*2 + 2*8.1

= 4 + 16.2

= 20.2 mm.

in hiw many ways can the letters of the word AZUCARERA be arranged

Answers

Answer:

30240 arrangements

Step-by-step explanation:

9!/(2!×3!)

Help please! will give brainliest

Answers

Answer:

exact volume= 12320ft³

approximate volume= 12308.8ft³

Step-by-step explanation:

exact volume= 22/7×14² x 20

approximate volume = 3.14x14²x20

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Answers

Answer:

h=8

Step-by-step explanation:

a²+b²=c²

a=A

b=12

c=13

therefore substitute

A²+(12)²=(13)²

A²=13²-12²

A²=25

A=5

h=3+A

h=3+5

h=8

Answer:

8 ft

Step-by-step explanation:

since it is a right angled triangle and you have 2 side lengths, we use the pythagoras theorem here.

a² + b² = c²

the c² is always your hypotenuse (longest side of the triangle, also opposite to the right angles)

*the b and a doesnt matter which order you put it in*

so; (sub in the numbers to the formula)

a² + 12² = 13²

(rearrange - like terms together)

a² = 13² - 12²

(calculate it)

a² = 25

(simplify it - get rid of the ² on the a)

a = √25

(solve)

a = 5

so, we know that a = 5 and we know that we have an additional 3

5 + 3 = 8

Find the value of x.
M M
(2x
10)
(2x + 40)
N
X=

Answers

Answer:

Could you state the question in the correct order?? Like is N supposed to be there?

PLEASE HELP!!

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

Match each equation of the piecewise function represented in the graph to its corresponding piece of the domain.

f(x) = 2 − x
f(x) = 3
f(x) = x
f(x) = 2
f(x) = 4
f(x) = 1
f(x) = -x

Domain Function Equation

0 < x ≤ 1 arrowRight
3 < x ≤ 4 arrowRight
2 < x ≤ 3 arrowRight
1 ≤ x ≤ 2 arrowRight

Answers

The domain and the corresponding functions are:

Function: f(x) = 3; Domain: 2 < x ≤ 3Function: f(x) = x; Domain: 1 ≤ x ≤ 2 Function: f(x) = 4; Domain: 3 < x ≤ 4Function: f(x) = 1; Domain: 0 < x ≤ 1

What is domain?

The domain of a function is the set of input values the function can take. This means that the domain is the x values of a function

Using the above definition of domain, the domain and the corresponding functions are:

Function: f(x) = 3; Domain: 2 < x ≤ 3Function: f(x) = x; Domain: 1 ≤ x ≤ 2 Function: f(x) = 4; Domain: 3 < x ≤ 4Function: f(x) = 1; Domain: 0 < x ≤ 1

Answers

The anwser is 53 cm each

Answer:

p/2 _l step 1. 270 ÷2= 135. 135- 82 = 53 width of the painting = 53

:)Can someone answer this

Answers

Answer:

6.50 + 5.75n

Step-by-step explanation:

6.50 for the first hour only being charged once and the 5.75 being for the number of hours (n) she works after the first hour

Answer:

Step-by-step explanation:

n is how many additional hours after the first hour she babysits. She charges $5.75 for each additional hour. So, that would be:

5.75n

But for the first hour, she charges 6.50. So that would be:

6.50+5.75n

In tilton school there are 380 students in key stage 3 240 students in key stage 4 110 students in key stage 5 phoebe is carrying out a survey. she needs a sample of 100 students

Answers

Answer:

Step-by-step explanation:

Total Number of students :

Stage 3 : 380

Stage 4 : 240

Stage 5 : 110

Total = (380 + 240 + 110) = 730

Number of samples required = 100

Number of key stage 3 students required :

(Key stage 3 / total) * number of samples

(380 / 730) * 100

= 0.5205479 * 100

= 52.0547

= 52

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Answers

i believe the answer is the fourth option.

Five points are plotted on the number line which point is opposite of point E

Answers

Answer:

Um, can you add the picture of the number line?

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These prisms are similar. Find the surface
area of the larger prism in decimal form.
5 m
7 m
Surface Area = 90 m2
Surface Area = [? ] m2
Enter

Answers

Answer:

176.4

Step-by-step explanation:

1.) 7/5 = surface area/90 = (7/5)^2 = 49/25

2.) sa/90 = 49/25

3.) 4,410/25a

Surface area is 176.4

Hope this helps!

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