Mathematics High School

no links please, i cant find the answer for q b) ii)

No Links Please, I Cant Find The Answer For Q B) Ii)

Answers

Answer 1

Answer:

-k

Step-by-step explanation:

Cos(140)=cos(180-40)=-cos(40)=-k

Answer 2

Answer:

Step-by-step explanation:

Sin (90 - A)  = Cos A

Cos (90 + A) =   -Sin A

Sin 50 = Sin (90 - 40)

          = Cos 40

         = k

Cos 140 = Cos (90 + 50)

             = - Sin 50

            = (- k)

Related Questions

What is the slope and y intercept of the equation?
y=1/2x
m=
b=

Answers

⊹˚ʚ ❑Answer︰slope is 1/2 and y-int. is 0

      ✎Daily reminder: make sure to eat food and stay hydrated, have a good day :D

Put these numbers in order from greatest to least.

0.07,3/5, and 5/8

Answers

Answer:

From greatest to least: 5/8, 3/5, 0.07

Step-by-step explanation:

5/8 = 0.625

3/5 = 0.6

0.07 = 0.07

5/8, 3/5, 0.07 hope this helps :)

Find the value of x. Express your answer in simplest radical form.

Answers

Answer:

D

x=5*sqrt(2)/2

Step-by-step explanation:

since it is a right triangle, and one of the other angles is 45, we know that the last angle must also be 45 since the 3 interior angles must be 180

then using pythagroem theorem

sqrt(a^2+b^2)=c

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

square both sides

x^2+x^2=25

2x^2=25

x^2=25/2

square root both sides

x= sqrt(25/2)=5/sqrt(2)

rationalize the demonominator by multiplying by sqrt(2)/sqrt(2)

x=5*sqrt(2)/2

If b = the number of boys, which algebraic expression represents the phrase
below?
the sum of the number of boys and 15 girls
A.
no
B. b + 15
O Ο Ο Ο
C. b- 15
D. b. 15

Answers

If b = the number of boys, which algebraic expression represents the phrase

below?

the sum of the number of boys and 15 girls

A.

no

Which of the following are mathematical sentences? Check all that apply.
O A. 12
B. 2<4
O C. 10g
D. 8- d = 16
E. 6 + 4 = 10
F. 8-V

Answers

Answer:

A,D

Step-by-step explanation:

Answer:

Answers: A and E ✡

- - Why?

Well a mathematical sentence needs to have something to equal to.

In this case for a we have

=10 and for d =16.

Step-by-step explanation:

How do I solve for x?

Answers

Multiply both sides by 2

Can someone help me with this now !

Answers

Answer:

its either B or D.

Step-by-step explanation:

could you mark me brainliest pls or even hit the thanks button

Fill in the blank.

7.95x10^7 = [ ? ]x 10^6

Answers

Answer:

79.5

Step-by-step explanation:

10^7 = 10^6 * 10

then 10*7.95 = 79.5

What is the first step in solving the quadratic equation -5x2+8=133

Answers

Answer:

subtracting 8 from both sides of the equation

Step-by-step explanation:

You have to get rid of +8 before squaring both sides.

The price of an item has been reduced by 25% . The original price was $20 . What is the price of the item now?

Answers

Answer:

ok for this problem lets subtract 25 for 100 to get 75 so know we know we have to multiple 20 by 0.75 to get 15 dollars for the reduced price

$15 is the price if the idea now

In the following function defined by an equation in the form y = ax + bx+c, identify the values of a, b, and c.
y = 5x2 + 2x-1
a. d=-1, b = 2,0 = 5
b. a = -2, b = 5,0 = 1
C. a = 1, b = 5,0 = 2
d. a = 5,6 = 2,0 = -1

Answers

Answer:

d

Step-by-step explanation:

just compare,

y = aX^2+bX+C and

y = 5X^2 + 2X - 1

structions: Drag and drop the correct name for each angle. Each angle has more than one name so be sure to identify all the correct names

Answers

Answer:

1) I, 4, HIJ

2) G, 1, HGF

3) J, 2, IJK

Step-by-step explanation:

The expected (mean) life of a particular type of light bulb is 1000 hours with a standard deviation of 50 hours. The life of this world is normally distributed what is the probability that a randomly selected bulb would last fewer than 940 hours?

Answers

Answer:

11.5%

Step-by-step explanation:

To solve this problem, we can use the knowledge that there are z score tables that calculate probabilities based on z scores. Thus, we must calculate the z score.

The z score formula is [tex]\frac{x- m}{s}[/tex] , where x is the value, m is the mean, and s is the standard deviation. We can then plug our values in to get [tex]\frac{940-1000}{50} = \frac{-60}{50} = -1.2[/tex] as our z score. Plugging this into a table where table values represent the area to the left of the z score (as we want to calculate everything under 940), we get 0.115, or 11.5% as our answer

Which verbal expression shows 4 ÷ n?

Your answer:

n divided by 4


the quotient of 4 and n


the product of 4 and n


4 decreased by n

Answers

Answer:

'the quotient of 4 and n ' is the correct answer

Hence, determine the length of AB. (Correct to TWO decimal places).​

Answers

Answer:

sorry also maybe a diagram would have helped

Find the missing segment

Answers

Answer:

45

Mark me as brainlist

ok

What are the domain, range, and asymptote of h(x)=2x+4

Answers

Step-by-step explanation:

Domain = x € the real Numbers

Range = y € the real Numbers

No asymptotes

What is the range of the relation? {(2, 1), (-4, 5), (1, 7), (3, -3), (-1, 2)}

Answers

Answer:

(1,5,7,-3,2)etc are the range of the relation.

Y = -8

Y = -2x - 12

Solve this equation by substitution

Answers

Answer:

x = - 2

Step-by-step explanation:

- 8 = - 2x - 12

- 8 + 12 = - 2x - 12 + 12

- 2x = 4

- 2x ÷ - 2 = 4 ÷ - 2

x = - 2

Algebra 2 Problem! Rational Roots

Answers

Answer:

este no hablo inglés

Someone pls pls pls solve this!!!!!!! And pls explain how u solved it. I need this due rn ASAP!!!

Answers

Answer:

What's the question? Please post the full question

Answer:This angle is a 35 degree angle

Step-by-step explanation:

Can somebody help I’ll give brainless

Answers

Answer:

194.51

Step-by-step explanation:

Find 6% of 183.50

183.50 * 6%

183.50 * .06

11.01

Add this to the original price

183.50+11.01

194.51

PLSSS, NEED ANSWER. Find the midpoint of the line segment with end coordinates of (-2,-5 and 3,-2
). Give coordinates as decimals where apropriate​

Answers

Answer:

1, -3.5

Step-by-step explanation:

Answer:(0.5,-3.5)

Step-by-step explanation:

(-2+3/2)/2, (-5-2)/2

0.5,-3.5

Please help I’ll give brainliest

Answers

Answer:

$48

Step-by-step explanation:

$160 * 0.05 = $8

$8 * 6 = $48

Hope this helps

Answer:

48

Step-by-step explanation:

Please Mark me brainlist

The first and second steps to solve the equation 3x/5+5=20 are shown below

Answers

Answer:

The solution of the equation is:

x = 25.

Step-by-step explanation:

To solve the equation:

[tex]\frac{3x}{5}+5=20[/tex]

First, you must add the terms 3x/5 and 5:

[tex]\frac{3x+25}{5}=20[/tex]

Now, you pass the number that is dividing (5), to multiply to the other side of the equality and operate:

3x + 25 = 20 * 53x + 25 = 100

Next, you pass the number that is adding (25), to subtract to the other side of the equality and operate:

3x = 100 - 253x = 75

At last, you pass the number that is multiplying the unknown variable, to divide to the other side of the equality and operate:

[tex]x=\frac{75}{3}[/tex]x = 25

If we use this value in the original equation, we can prove if it's the correct:

[tex]\frac{3x}{5}+5=20[/tex][tex]\frac{3*25}{5}+5=20[/tex][tex]\frac{75}{5}+5=20[/tex][tex]15+5=20[/tex]20 = 20

As you can see, the result x = 25 is the correct.

Use the graph to determine the input value for which f(x) equals G(x) is true x=0.5,x=1, x=1.5,x=2

Answers

Step-by-step explanation:

1.5 is the answer I just tried it and got it correct

Answer:

1.5 I just got the correct answer on edge

Plot the points (-6,8) and (-6,-3) on the coordinate plane below.
What is the distance between these two points?
units

Answers

Step-by-step explanation:

the distance between these two points is 11 units

Which answer choice shows a solution set in which all values, when input for x, will be true?
12−(x+2)>2

Answers

Answer:

It would be x < 8

Step-by-step explanation:

The interval notation is (-∞, 8)

Hope this helps:)

Please help me ASAP

Answers

Answer:

4. =3 ft

5. 2/1.25 lb

Answer:

4) 3 ft = 36in  ⇔   [tex]\frac{36in}{12in}[/tex]  = 3 inches

5) 2 lb = 32 oz  ⇔  [tex]\frac{32oz}{20oz}[/tex]  = 1.6 oz

Two weeks in a row, the golf course hosts a group of golfers. The second week had 10 more golfers than the first week. Use the dot plots to choose the true statement.

dot plot titled Number of Golfers for Week 1 with number line labeled Age of Golfer, 1 dot at 62, 3 dots at 68, 1 dot at 69, 2 dots at 70, 3 dots at 72, 2 dots at 75, 1 dot at 76, 2 dots at 78, 3 dots at 80, and 2 dots at 89

dot plot titled Number of Golfers for Week 2 with number line labeled Age of Golfer, 2 dots at 62, 3 dots at 64, 3 dots at 68, 1 dot at 69, 2 dots at 70, 3 dots at 72, 2 dots at 75, 1 dot at 76, 2 dots at 78, 3 dots at 80, 2 dots at 85, 3 dots at 86, and 2 dots at 89

The range for Week 1 equals the range for Week 2.
The range for Week 1 is greater than the range for Week 2.
The median for Week 1 is less than the median for Week 2.
The mean for Week 1 is greater than the mean for Week 2.

Answers

Answer:

The median for Week 1 is less than the median for Week 2.

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