Mathematics High School

Hi can someone help me with these question ASAP. Thanks. Will mark as brainliest ! Show working out too

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Answer 1

Answer:

ok bro this is kinda hard to show on here cuz you cant add a unit circle. any other ways?

Step-by-step explanation:

Related Questions

I need help on this question, geometry basics.

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Step 1 : F

Step 2 : C

Step 3 : B

Step 4 : E

Step 5 : D

Step 6 : A

Pls help I am very confused

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Answer: 22 weeks to gain $312.

Step-by-step explanation:

Let w be the number of weeks.

Equation: 48 + 12w

48 + 12(22)

= 48 + 264

= $312

It will take 22 weeks for Marty to gain $312.

In your own words, what does supplementary mean?

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Answer:

added or serving as a supplement.

According to the table. what is the ratio of pattern 2 to pattern 1?
A) 1/4
B) 1/2
C) 2/1
D) 1
PLS ANSWER QUICK

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Answer:

Srry but there is no table.

FIND THE MISSING SIDE OF THE TRIANGLE

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Answer:

[tex]use \: pythagorean \: theoram \\ {hypotenuse}^{2} = {height}^{2} + {base}^{2} \\ {x}^{2} = {12}^{2} + {9}^{2} \\ {x}^{2} = 144 + 81 \\ {x}^{2} = 225 \\ x = \sqrt{225} \\ x = 15 \\ thank \: you[/tex]

Answer:

x=15

Step-by-step explanation:

[tex]x=\sqrt{a^2+b^2}[/tex]

[tex]=\sqrt{12^2+9^2}[/tex]

[tex]=\sqrt{225}[/tex]

[tex]=15[/tex]

Answer this if you can boom bam bop

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Answer:

D. $60

Step-by-step explanation:

If the amount is equal and each is 20% = $12, then total is:

100% = 20%*5 = $12*5 = $60

Correct choice is D

Answer:

60.00

Step-by-step explanation:

20% of 60 = 12 which equals the amount of money Peter has.

So, at $60, he has 20% and $12.00

4z - 15 = 4z + 11
How would this one work?

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There is no solution for this equation.
Subtracting 4z from both sides gives -15 = 11 which is inpossible.

1.4m breadth and 70cm length for this rectangle find the ratio of the longer side to the shorter side in its simplest form.

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Answer:

2 : 1

Step-by-step explanation:

→ Convert 1.4 m into cm

1.4 × 100 = 140 cm

→ Find the larger number between 140 and 70

140

→ Put into ratio format

140 : 70

→ Simplify

2 : 1

Karabo is training by running for the Comrades Marathon ; he starts his training by running 40km per week . Each week he increases the distance covered by 10km (1) Use the formula to calculate the distance he runs in the 12 week of training

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Answer:

Step-by-step explanation:

Write down the formula of calculating the average of the individual data

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When calculating the average of individual data, you set of all observations of a given characteristic, usually in ascending order. The arithmetic mean for this series is calculated by summing the values of the observations and dividing the result by the number of observations.
Hope this helps, please give me brainliest

a1+an/2 is the formula for calculating the average

9 1/10 - 4 3/4

fraction need help now pls do not lie just for points will be reported

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Answer:

4.35 or 87/20

Step-by-step explanation:

try desmos scientific calculator to help with other question.

(4x – 5)(7 – 2x) – (2x + 2)(2 – 4x)= -1

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Answer: x= 19/21.

Step-by-step explanation:

We can expand the expression to:

28x - 8x^2 - 35 + 10x -4x + 8x^2 - 4 + 8x = -1

We can then cancel the - 8x^2 and the + 8x^2 and simplify further by adding like terms:

38x - 35 + 4x -4 = -1 --> 42x - 39 = -1

We can then add 39 on both sides:

42x = 38

We can then divide both sides by the GCF (greatest common factor), 2:

21x = 19

We divide both sides by 21:

x = 19/21

5(x + 3) - 2 = 2 + 5x + 9

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Answer:

There is no solution

Step-by-step explanation:

[tex]5(x + 3) - 2 = 2 + 5x + 9[/tex]

[tex]5x+15-2-2-5x-9=0\\15-13=0\\2=0[/tex]

There is no solution

because 2=0 is not possible.

Solution

→5(x + 3) - 2 = 2 + 5x + 9

→5x+15-2 = 11+5x

→5x-5x = 11-13

→x = -2

The midpoint of AB is M(3, 1). If the coordinates of A are (1, -1), what are the
coordinates of B?

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Answer:

(5,3)

Step-by-step explanation:

Marking brainliest

What else should I add

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Step-by-step explanation:

........Student

........ Cousin

......... Child

Answer:

Step-by-step explanation:

daughter cousin (if you have any).mother (if you are one)family member (if it applies)best friend.

A triangle has a perimeter of 23 feet. Find the value of X

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Answer:

x = 4

Step-by-step explanation:

3x + x + (x + 3) = 23 feet

3x + x + x = 20 feet

5x = 20 feet

x = 20/5

x = 4

What is 3x+5 = 2x+11

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Answer: x = 6

1. Subtract “2x” on both sides. This simplifies the equation to x+5=11

2. Subtract “5” on both sides. This simplifies to x=6, which is your answer.

a flock of parrots was sitting a tree. five more joined them then half the total flew away leaving seven parrots how many were in the flock?

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Answer:

Step-by-step explanation:

9+5=14/2=7

a. If the average North Korean farmer produces 1,500 pounds of food per year, what is the opportunity cost, In pounds of food, of North
Korea's army?

______ pounds of food per year

b. If a person needs at least 500 pounds of food per year to survive, how many people could have been fed with the forgone food output?

_____ people

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Answer:

1,920,000,000 pounds of food per year and 3,840,000 people.

Step-by-step explanation:

1,280,000 active military members could have been farmers that produced 1,500 pounds of food per year. (1,280,000 farmers x 1,500 pounds of food = 1,920,000,000).

1,920,000,000 divided by 500 pounds of food per person is 3,840,000.

help find x for a,b,c and d i will rate thank u

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A is 71. B is 28. That’s all ik hopefully it was a bit of help at least?

Find a.
Round to the nearest tenth:
а
10 cm
150°
12°
a = [? ]cm
Law of Sines: sin A
sin B
11
sin C
sin C
С

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Answer:

a= 24 cm

Step-by-step explanation:

[tex] \frac{ \sin(150) }{a} = \frac{ \sin(12) }{10} \\ a = 24[/tex]

I hope I helped you^_^

the answer is a, 24 cm

On+monday,+hakim+stocked+up+on+bottled+water+for+the+trip.+On+tuesday,+he+purchased+five+more+bottles+to+add+to+his+collection.+On+wednesday,+half+of+his+entire+collection+remained+and+only+had+7+left.+How+many+did+he+have+on+Monday

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Answer:

the answer for this question is 2

express 13/50 as a percentage

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Answer:

26%

Step-by-step explanation:

How can we turn a fraction into a percentage well if 1.00 is 100% and 0.90 is 90% we can see that we can easily convert between decimal and percents. The fraction 13/50 is the same thing as 13 divided by 50 which is 0.26. So our answer is 26%

Answer: 26%

Step-by-step explanation:

13/50 = 26/100 =26%

Simplify 4(2x3 – 5x2 + 8x + 2) - 6x - 8x3

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Answer:

- 20x² + 26x + 8

Step-by-step explanation:

Given

4(2x³ - 5x² + 8x + 2) - 6x - 8x³ ← distribute parenthesis by 4

= 8x³ - 20x² + 32x + 8 - 6x - 8x³ ← collect like terms

= - 20x² + 26x + 8

-99>5-8(m+6)
need help

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Answer:

m > 7

Step-by-step explanation:

[tex] - 99 > 5 - 8(m + 6)[/tex]

[tex] - 8(m + 6) = - 8m - 8 \times 6[/tex]

[tex] = - 8m - 48[/tex]

[tex] - 99 > 5 - 8m - 48[/tex]

[tex]5 - 48 = - (48 - 5) = - 43[/tex]

[tex] - 99 > - 43 - 8m[/tex]

[tex] - 99 + 8m > - 43[/tex]

[tex]8m > - 43 + 99[/tex]

[tex]8m > 56[/tex]

[tex] = m > 7[/tex]

Suppose u and v are orthogonal vectors with ||u|| =5 ||u||= 1/2 ||v||, find ||u+v||.

help pleas I will give you 15 points

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Answer: 5*sqrt(5)

This is the same as sqrt(125).

It approximates to roughly 11.1803

=========================================================

Explanation:

Vector u is 5 units long as indicated by the notation ||u|| = 5. Some math books would say |u| = 5, and it's the same thing. The double bars are probably more fitting because it helps emphasize we're looking for the length of a vector and we're not using absolute value bars.

The second equation ||u|| = (1/2)*||v|| can be rewritten into ||v|| = 2*||u|| telling us that vector v is twice as long compared to vector u. Since vector u is 5 units long, that must mean vector v is 10 units long.

vector u = 5 units longvector v = 10 units long

The two vectors are orthogonal, i.e. they are perpendicular. The vector u+v represents the diagonal of the rectangle as shown below in the attached image. Vector u is horizontal, v is vertical, and u+v is the diagonal. Technically we don't know where vector u is pointed along a compass (it may or may not be pointing directly east), but I find it's easier to have it set up like this. The answer will be the same regardless of where vector u is pointed. Rotations don't affect vector lengths.

We can see that vector u+v effectively breaks down component-wise into the horizontal component u and vertical component v (think of them as x and y components respectively).

Furthermore, note how there are two right triangles that form when we draw in the diagonal of the rectangle.

To find the length of vector u+v, we apply the pythagorean theorem.

a^2+b^2 = c^2

( ||u|| )^2 + ( ||v|| )^2 = ( ||u+v|| )^2

( 5 )^2 + ( 10 )^2 = x^2

25 + 100 = x^2

125 = x^2

x^2 = 125

x = sqrt(125)

x = sqrt(25*5)

x = sqrt(25)*sqrt(5)

x = 5*sqrt(5) is the length of vector u+v

In other words, ||u+v|| = 5*sqrt(5)

Keep in mind that this trick using the pythagorean theorem only works when vectors u and v are orthogonal. The process to find ||u+v|| for non-orthogonal vectors u,v is a bit more complicated.

Please help ASAP!!!!!!!!!!

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b^2-4ac=7 is the answer

is 2/3greater than 0.67

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Answer:

0.67>2/3

Step-by-step explanation:

If you divide 2 by 3, you will end up with 0.6.

Now, you can compare the two numbers 0.6 and 0.67.

Which interval notation represents the set of all numbers greater than -2 and less
than or equal to 3?

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Answer:

yes

Step-by-step explanation:

Answer:

(- 2, 3 ]

Step-by-step explanation:

parenthesis ( ) is used when the end value is not equal

brackets [ ] are used when the end value is equal

Here numbers are greater but not equal to - 2 and less than or equal to 3

(- 2, 3 ] ← is the appropriate interval notation

Write an equation of the line that passes through the point (-6, -9) with slope-5.
A. y + 9 = 5(20+6)
B.y +6 = 5(x +9)
c.y+9= -5(x + 6)
D.y +6 = -5(x +9)

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Answer:

[tex]y+9=-5(x+6)[/tex]

Step-by-step explanation:

We are being asked to write the equation in point-slope form:

[tex]y-y_1=m(x-x_1)[/tex] where m = slope and the first point = [tex](x_1,y_1)[/tex]

In this case, the slope is -5 and the point is [tex](-6,-9)[/tex] so the equation will be:

[tex]y+9=-5(x+6)[/tex]

Want to learn more about point-slope form? Check the link out:

https://www.albert.io/blog/point-slope-form/#What_is_point_slope_form

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