PLZZZZZ HELP ME I WILL GIVE BRAINLY

Answer:

a

Step-by-step explanation:

a and d and b and c share the same symbol that represents their angle. therefore, they are corresponding.

The expression that is equivalent to 2cos²(x/2) - cos(x) is 1.

These are the equation that contains trigonometric operators such as sin, cos.. etc.. In algebraic operations.

Here,
We can use the double angle identity for cosine, which states that:

cos(2θ) = 2cos²(θ) - 1

To simplify given expression expression by putting cos(x) = 2cos²(x/2) - 1 as follows:

= 2cos²(x/2) - cos(x)

= 2cos²(x/2) - 2cos²(x/2) + 1  (using the identity cos(2θ) = 2cos²(θ) - 1)

= 1

Therefore, the expression that is equivalent to 2cos²(x/2) - cos(x) is 1.

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Answer:

43

Step-by-step explanation:

there is a line above the 43, meaning that it ends in 434343434343434343434343434343...... You get the point.

Answer:

43

Step-by-step explanation:

Answer:

2 2/9

Hope this helps!

Answer:

20 degrees

Step-by-step explanation:

Y is 90 degrees.

lets find the measure of the other angle, 180-110 is 70.

using this info let’s find X.

180-(70+90)

180-160

20

Answer:

i sure for the bottom one is 3

Answer:

you can plug in x to find y then use them as coordinates to find your answer.

Step-by-step explanation:

ex:

y=((1)-4)^2-3

y= (-3)^2-3

y=9-3

y=6

so then check to see if (1,6) is a point in that line.

Answer:

25/9=2.77777777778

Step-by-step explanation:

Answer:

19.97

Step-by-step explanation:

18.1 - 1.1 x (7.4 - 9.6 + 0.5)

18.1 - 1.1 x (-2.2 + 0.5)

18.1 - 1.1 x (-1.7)

18.1 + (1.87)

19.97

The simplified value of the expression 18.1 - 1.1(7.4 - 9.6 + 0.5) is 36.8.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, An expression  18.1 - 1.1(7.4 - 9.6 + 0.5).

let us multiply each term of the expression to remove the decimal.

∴ 181 - 11(74 - 96 + 5).

= 181 - 11(-17).

= 181 + 187.

= 368 but the actual answer is 36.8 as we have to divide by 10.

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Answer:

15k+5

Step-by-step explanation:

11k-3+4k+8

=(11k+4k) (-3+8)

=15k+5

Answer:

5(3k+1)

Step-by-step explanation:

11k-3+4k+8 collect like terms calculate

15k+5 factor the expression

5(3k+1) or 15k+5

Answer:

it is really just 12-10 because 10 is negative think of it as you are taking away ten from the original 12 you have so the answer is 2

Answer:

2

Step-by-step explanation:

Add 12 to -10

10+-10=0+2=2

Step-by-step explanation:

20 a + I 5 b + 3a - 3b

23 a + 12b

Answer:

88 birdhouses

6 new boxes

226 postcards

Answer:

1. 88

2. 6

that's all, and when you do problems like this later, don't forget the order of operations!

Answer:

The answer is 1.

Step-by-step explanation:

=36 - 7 (8+6-9)

=36-56-42+63

=-20-42=-62+63

=1

Answer:

36-7(8+6-9)

29(5)

145

Answer:

x > 15

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define inequality

5x - 7 > 4x + 8

Step 2: Solve for x

Here we see that any value x that is greater than 15 would work as a solution to this inequality.

Answer:

Ms. Montesinos has 5 fish in her tank

Step-by-step explanation:

a) Let y = the amount of fish Ms. Montesinos

b) 3y-2=13

c)

3y-2+=13+2

3y/3=15/3

y=5

Answer:

55 mph

Step-by-step explanation:

The family would have to drive an average of 55 mph. You find this by dividing 220 miles total by the 4 hour time allotment. ;)

Answer:

a. 37.5

b. 25

Step-by-step explanation:

a. Rate of change the first 4 seconds can be calculated using the points (0, 0) and (4, 150):

Rate of change = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{150 - 0}{4 - 0} = \frac{150}{4} = 37.5 [/tex]

b. Rate of change between 8 seconds and 12 seconds using the points (8, 150) and (12, 250):

Rate of change = [tex] \frac{y_2 - y_1}{x_2 - x_1} = \frac{250 - 150}{12 - 8} = \frac{100}{4} = 25 [/tex]

Answer:

slope = 5/3

Step-by-step explanation:

(in case you need it in intercept form)

y = 5/3 + 1

Answer:

THIS IS WORTH $1,000,000!!! DEFINITELY 100/10 LIKE FOR SURE!!!! :)))))

Answer:

I LOVE IT 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000/10 beautiful

Answer:

25,600 feet in difference

Step-by-step explanation:

If the jet is 25,000 feet above sea level then dives 600feet below sea level that will be 25,600 feet in difference.

25,000 - - 600

25,000 + 600

25,600

Answer:

Step-by-step explanation:

Part A: 5/26

Part B: 5/26+ 1/2 which is 18/26 or 9/13

Part C: 5/26 +21/25. 'without replacing' means there is one less option in the bag. So denominator becomes 26-1=25. Numerator is 21 because there are a total of 21 consonants in the alphabet. Since we removed a vowel and not a consonant, it will remain 21.

Answer:

It is 4 4/15

Step-by-step explanation:

We convert 2/3 and 3/5 to fifteenths because we cant add numbers with different denominators.

2/3 = 10/15  |  3/5 = 9/15

10/15 + 9/15 = 19/15 = 1 4/15. Then, we add the 3.

3 + 1 4/15 = 4  4/15.

Answer:

03:24 PM

Step-by-step explanation:

Given

[tex]Start\ Time = 3:00PM[/tex]

WMTH = Every 12 minutes

WMSU = Every 8 minutes

Required

Determine when they both play the song

To do this, we simply solve for the LCM of 8 and 12

List the factors of 8 and 12

[tex]8 : 8, 16, 24...[/tex]

[tex]12: 12, 24, 36...[/tex]

From the above, the least common multiple is 24

This means that the song will be played on both stations 24 minutes after 3:00PM

In other words, 03:24 PM

Complete Question

The horizontal axis in the sampling distribution of [tex]\^p[/tex] represents all possible sample proportions from a simple random sample of size n.

a. What percent of sample proportions results in a 90​% confidence interval that includes the population​ proportion?

b. What percent of sample proportions results in a 90​% confidence interval that does not include the population​ proportion?

Answer:

a

 90% of  all possible sample proportions

b

 (100% - 90% = 10% ) of  all possible sample proportions

Step-by-step explanation:

Generally given from the question that the horizontal axis of a represent all possible sample proportion then then the percent of the sample proportion that result in 90%  interval that includes the population​ proportion is   90% of  all possible sample proportions

Generally given from the question that the horizontal axis of a represent all possible sample proportion  then the percent of the sample proportion that result in 90%  interval that does not include the population​ proportion is   (100% - 90% = 10% ) of  all possible sample proportions

Answer:

∠EGA = 123°

∠EHD = 57°

Step-by-step explanation:

Determine the measure of ∠EGA:

Since ∠EGB and ∠EGA make up the angle of a straight line (180°):

∠EGB+∠EGA = 180

57+∠EGA = 180 (given that ∠EGB = 57°)

∠EGA = 123°

Determine the measure of ∠EHD:

∠EHD = ∠EGB (corresponding angles of parallel lines are equal)

∠EHD = 57° (given that ∠EGB = 57°)

Hope this helps :)

The square root of 12 is approximately 3.4641.

The square root of 12 is an irrational number, meaning it cannot be expressed as a fraction or terminating decimal. However, we can approximate its value.

To approximate the square root of 12, we can use a calculator or perform an estimation. The square root of 12 is approximately 3.4641.

When we multiply 3.4641 by itself (3.4641 * 3.4641), we get a value very close to 12, but not exactly 12 due to the irrational nature of the square root.

The square root of 12 represents a number that, when multiplied by itself, equals 12. It is a non-repeating, non-terminating decimal that goes on infinitely. The approximation 3.4641 is commonly used to represent the square root of 12 in practical calculations.

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English translation of question is below

What is the square root of 12?