solve for
cosxcos(x+pi divided by 4)=0
0

Answers

Answer 1

Answer:

Step-by-step explanation:

hello : solutions in R

cosxcos((x+π)/4) =0

means :   cosx = 0   or   cos((x+π)/4) =0

1)   cosx = 0    means : x = π/2+kπ    k in Z

2)  cos((x+π)/4) =0  means :  (x+π)/4 =  π/2+kπ .......continu calculate : x


Related Questions

A tomato plant was 10 inches tall when it was planted in August. When the tomatoes were ready to be picked it was 50 inches tall. How many inches did the plant grow?

Answers

Answer:

40 inches

Step-by-step explanation:

50-10 - 40 inches

Answer:

The plant grew 40 inches.

Step-by-step explanation:

Recognize our numbers

10, 50

10 in. tall

50 in. tall when ready to be picked

10+y=50

10+10

=20

10+20

=30

10+30

=40

10+40

=50

The plant grew 40 inches.

There are 60 children in a club.

In the club, the ratio of the number of girls to the number of boys is
3
:
1


3
5
of the girls play a musical instrument.

4
5
of the boys play a musical instrument.

What fraction of the 60 children play a musical instrument?

Answers

Answer:

13/20

Step-by-step explanation:

hope this worked!! god bless!!!

A pair of sneakers costs $60. Dahlia bought them on sale
for $45. What is the percent decrease in the price of the
sneakers?

Answers

Answer:

The answer is 25%

Step-by-step explanation:

Dahlia bought them for 25% off.
60/4 =15 15x3=45

At a middle school, 46 students have blonde hair. There are 230 students in the school. What percent of the students have blonde hair?

Answers

Answer:

20% of the students have blonde hair

Answer:

20%

Step-by-step explanation:

t = 0.85(30a + 150) need answer qick

Answers

multiply 0.85 by 30a then multiply 0.85 and 150 and you should get your answer
Answer clearly shown in photos

plss help me i really need help plsss my school is amost done so plss help me

Answers

Answer:

cant really help since I cant draw it out, just count the numbers, for example if its (5,4) start from the middle and go 5 pointa to the right and 4 points up and mark it, if its (-5. -4) go 5 points left and 4 points down

5s + 2z = 1.32
3s + 1z = 0.75
what would the answer be?

Answers

Answer:                                                                    

Step-by-step explanation:

Find AC using either the distance formula or the pythagorean theorem

Answers

Answer:

[tex]4^{2}+2^{2}=c^{2}[/tex]

[tex]\sqrt{20} =c[/tex]

Step-by-step explanation:

I will give Brainliest AND a Cookie!

Answers

Answer:

it might be c not to sure

Step-by-step explanation:

sorry if u get it wrong

Answer:

c

Step-by-step explanation:

I CAN GET A COOKIE

How much inches go into 5ft?

Answers

1ft is 12 inches, multiply 12 with 5. That’s gonna be 60.

Answer: 60 inches

If m∠12 = 123° and m∠6 = 76°, find each measure.

Answers

Answer:

m1 = 76

m2 = 47

m3 = 57

m4 = 57

m5 = 47

m6 = 76

m7 = 123

m8 = 57

m9 = 76

m10 = 104

m11 = 57

m12 = 123

m13 = 104

m14 = 76

123=16• that’s the answer of the ques

i will give brainliest to first correct answer!!. a triangle is a right triangle if the lengths, A, B , and C of its three sides satisfy the following equation: a^2 +b^2 =c^2. Which of the following is a right triangle

Answers

Answer:

A triangle with sides measuring 20, 21, and 29

Step-by-step explanation:

Carrie wants to cut out fabric in the shape of a letter "C" to sew onto the back of a shirt. She sketched out her pattern on graph paper as shown. How much fabric will Carrie use to make the "C"?

Answers

I think the answer to this question is letter D

4.6 isosceles and Equilateral triangles

Answers

Answer:

Step-by-step explanation:

1) All the sides are equal. So it is an equilateral triangle. SO, all the angles are equal

x = 60

2) In this triangle, two sides are equal. so, it is an isosceles triangle.

In isosceles triangle, angles opposite to equal sides are equal

x = 74

15
Sarah, Natasha and Richard share some sweets in the ratio 5:2:2. Sarah gets 21 more sweets
than Richard. How many sweets does Natasha get?

Answers

Answer:

natasha gets 14 sweets

Step-by-step explanation:

7x2=14

7x5=35

35-14=21

ILL MARK AS BRAINLIEST

Mrs. Zahid bought 6 bouquets at $ m each, and 8 packs of chocolates at $ ‘n’ each. She had $(2m + 5n) left. Find the amount of money she had at first.

Answers

Answer:

$(8m + 13n)

Step-by-step explanation:

Given that :

Total Cost of 6 bouquet = 6m

Total cost of 8 chocolate = 8n

Total amount spent = $(6m + 8n)

Total amount left = $(2m + 5n)

Hence, amount had at first :

Total amount. Spent + total amount. Left

(6m + 8n) + (2m + 5n)

(6m + 2m + 8n + 5n)

$(8m + 13n)

What is the surface area of the square pyramid?
6 square meters
16 square meters
28 square meters
49 square meters

Answers

Answer:

16

Step-by-step explanation:

took the test

Help!! I’ll give brainliest! <3

Answers

Answer:

Step-by-step explanation:

1/2 x because it is always positive and gives half the value of x

Danny has at least $15 more than his big brother. Danny's brother has 72. How much money does Danny have?

Answers

Answer:

d >= $87

Step-by-step explanation:

Since we are not given the exact difference between the amount of money that Danny has in comparison to his brother, then this would ultimately be an inequality question. We are told that Danny has atleast $15 more than his brother, meaning that the minimum that Danny can have is $15 more than his brother. Danny's brother has $72 so we need to add these two values together.

$72 + $15 = $87

Therefore Danny would have a minimum of $87 but at the same time can have more than that. Therefore, we can use the following inequality to represent Danny's money (d)

d >= $87

(19 + 2) x 11 + 3 hhhh

Answers

Answer:

234

Step-by-step explanation:

19+2=21
11+3=14
Answer: 294

16)
6 points
Bowling shoes cost $69.95 per pair. You need two-
new pairs of shoes. What is the better Incentive?
Buy one pair, get the second pair at half price
Or
2 palrs for $100.00
Buy one pair get the second at half price
O 2 pairs for $100

Answers

The answer is buying 2 pairs for $100

what is the sum of /-10/ and /6/

Answers

Answer:

16

Step-by-step explanation:

-10 opposite is 10 which this \ or | means the its positive number. So 10 +6 is 16

Two friends shop for fresh fruit. elena buys a watermelon for $7.65 and 4 pounds of cherries. taniy buys a pineapple for $2.25 and 3 pounds of cherries. use the variable p to represent the price, in dollars, per pound of cherries.​

Answers

Answer:Answer: 5.2-p

Step-by-step explanation:

Let p be the price, in dollars, per pound of cherries.

Given : .Jackson buys a watermelon for $7.65 and 5 pounds of cherries.

Cost of 5 pounds of cherries = 5p

Now,

Cost of fruits to Jackson = 7.65+5p   (in dollars)

Tim buys a pineapple for $2.45 and 4 pounds of cherries.

Cost of 4 pounds of cherries = 4p

Now,

Cost of fruits to Tim = 2.45+4p   (in dollars)

Amount spent by Jackson more than Tim = (Cost of fruits to Jackson)-(Cost of fruits to Tim)

=  7.65+5p -(2.45+4p)

=  7.65+5p -2.45 - 4p

= 5.2-p

Hence , the required expression in terms of p = "5.2-p"

Step-by-step explanation:

HELP THIS 6TH GRADE MATH!!!!!!

Answers

Answer: 3/50
Have a good day :D
The answer is 3/50…..

8- (-7) = help ASAP

Answers

Answer: 15

Step-by-step explanation: have a great day!

Multiple Choice Questions (MCQs)
14. The ratio between two numbers is 11:9. If the
sum of these two numbers is 40, what is the
product of the numbers?
(a) 396
(c) 400
(b) 432
(d) 384​

Answers

Answer:

(c) 400 is correct answer

Copeid from Sandy

Answer:

400 is the best answer

Step-by-step explanation:

For me

Copied from Alia !!

16 multiplied by half a number

Answers

That would be 32 to answer your question

$73 is what percent of $125

Answers

Answer: The question $73 out of 125 is 58.40%

Step-by-step explanation:

$73 out of 125 is what percent Answer: The question $73 out of 125 is 58.40%, which is the same as 73/125 as a percent. This can be solved using this calculator above

The $73 is approximately 58.4% of $125.

To find what percent $73 is of $125, we can use the following formula:

Percent = (Part / Whole) * 100

In this case, $73 is the part and $125 is the whole.

Substituting these values into the formula:

Percent = (73 / 125) * 100

Dividing 73 by 125:

Percent = 0.584 * 100

Multiplying 0.584 by 100:

Percent = 58.4

Therefore, $73 is approximately 58.4% of $125.

To know more about percent:

https://brainly.com/question/31323953

#SPJ6

6 is 2/3 of what number

Answers

Answer:

9

Step-by-step explanation:

Let that number be x whose 6 is two thirds. Now we need to find here the value of x .

So,

[tex]\underline{\boldsymbol{ According\ to \ the \ Question :- }}[/tex]

=> x × ⅔ = 6

=> x = 6*3/2

=> x = 9

Two sides of a triangle measure 8 centimeters and 13 centimeters which of the following could not be the length of the third side

A: 4 cm
B:8 cm
C: 14 cm
D: 18 cm

Answers

The answer is A because 13-9 equals 4
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