Sin x = cos 19° what is value of x? Enter answer in the box

Answer:

=4/1 or 4

Step-by-step explanation:

Remember Rise/Run

also remember this formula:

y2-y1/

x2-x1

Your coordinates are: (-2, 1) (-3, -3)

-3-1/

-3-(-2) = -4/-1  or 4

Two negatives cancel out and make it a positive.

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Hope this helps (:

Answer:

Solve with system of equations

answer is (4,5)

You would graph (4,5)

x=4 and y=5

No it won't. it's false

cuz proofs here.

(5²)+(12²)= (169)

√(169) = 13

.. so if 13 was the number at 14

it would have been true.

currently the answer is false

Answer:

the answer would be 3 1/2

Step-by-step explanation:

if you simplify -7/2 it would be -3 1/2, and the opposite of -3 1/2 is 3 1/2.  And from 0-3 there are 6 spaces, so every two spaces counts as 1. Therefore the point would go one spot after positive 3.  

Answer:

Step-by-step explanation:

total =20

red=10

P(red)=10/20=1/2

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

Explanation:

We have 10 red blocks out of 40 total (since 20+10+5+5 = 40)

The chances of picking red are 10/40 = 1/4

1/4 = 0.25 = 25%

Answer:

it

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

2x+(x-6). We know that x=12 so we replace x with 12. This means the expression will be 2(12)+(12-6). Now, we just have to simplify. 24+6. 24+6=30 so the answer is 30.

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The probability that a specific fire engine is not available when needed is 0.04 (since the probability of it being available is 0.96).

The question asks for two probabilities related to the availability of fire engines in a town. The first part asks for the probability that neither engine is available when needed, and the second part asks for the probability that a fire engine is available when needed.

To calculate the probability that neither engine is available when needed, we need to use the multiplication rule for independent events. We know that the probability that one specific engine is not available when needed is 0.04 (1 - 0.96). Since the two engines operate independently, the probability that both are not available when needed is the product of their individual probabilities:

P(neither available) = P(engine 1 not available) * P(engine 2 not available)

P(neither available) = 0.04 * 0.04

P(neither available) = 0.0016

Therefore, the probability that neither fire engine is available when needed is 0.0016.

To calculate the probability that a fire engine is available when needed, we can simply use the given probability of 0.96:

P(available) = 0.96

Therefore, the probability that a fire engine is available when needed is 0.96.

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The rate of change of y with respect to x will be;

⇒ 10

What is Division method?

Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.

Given that;

The table is shown in figure.

Now,

Since, The table is shown in figure.

Let two points from the table as;

(x, y) = (- 8.5 , - 92)  (- 6.5, - 72)

We know that;

⇒ Rate of change = dy/dx = (y₂ - y₁) / (x₂ - x₁)

Substitute all the values we get;

⇒ Rate of change = (- 72 - (-92)) / (- 6.5 - (-8.5))

                            = 20 / 2

                            = 10

Thus, The rate of change of y with respect to x will be;

⇒ 10

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Answer:

46 miles

Step-by-step explanation:

First, set up an equation:

(48 + 58 + 68 + 50 + x) ÷ 5 = 54

Add the miles in the parentheses:

(48 + 58 + 68 + 50 + x) ÷ 5 = 54

48 + 58 + 68 + 50 = 224

(224 + x) ÷ 5 = 54

Multiply by 5 on each side:

[(224 + x) ÷ 5] × 5 = (54) × 5

(224 + x) = 270

Subtract 224 on each side to isolate x:

(224 + x) - 224 = (270) - 224

x = 46 miles

Hope this helps! I'd appreciate brainliest but if not that's fine!

Yes , there can be a Right triangle with two side lengths as simple fraction and other side length as an integer .

In the question ,

we have to find , whether a Right Triangle can be made by two fractions and an integer length .

yes, we can make a Right Triangle with two lengths as fractions and other length as integer .

let us prove it with the help of an example .

Consider the triplet 7 , 24 , 25 .

let the two fractions side be 7/25 and 24/25 , and the hypotnuse of the right triangle be  1 .

We know that for the Right Triangle

(side1)² + (side2)² = hypotnuse²

(7/25)² + (24/25)² = 1²

49/625 + 576/625 = 1

(49+576) / 625 =1

625/625 = 1

1 = 1

hence ,it is a Right Triangle .

Therefore , Yes , there can be a Right triangle with two side lengths as simple fraction s and other side length as an integer .

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Answer: its a

Step-by-step explanation:

i got the test all right trust me :)

hope it helped

\( \sqrt{3} x + 4 - 2 = 3 \\ = > \sqrt{3} x = 3 - 4 + 2 \\ = > \sqrt{3} x = 1 \\ = > x = \frac{1}{ \sqrt{3} } \\rationalising \: \: \: the \: \: \: denominator \\ = > x = \frac{1}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } \\ = > x = \frac{ \sqrt{3} }{3} \\ \)

\( \frac{ \sqrt{3} }{3} \)

Answer: x = 7

Step-by-step explanation:

\(\sqrt{3x+4}=3+2\)

\(\sqrt{3x+4}=5\)

\(3x+4 =25\)

\(3x = 21\)

\(x=7\)

Please give me a brainliest answer

The function that is graphed include the following:

A. y = x² + 2, x < 1

    -x + 2, x ≥ 1

In Mathematics, a piecewise-defined function can be defined as a type of function that is defined by two (2) or more mathematical expressions over a specific domain.

By critically observing the graph of the piecewise-defined function g shown in the image attached below, we can logically deduce these two (2) functions;

When the domain is x < 1, we have:

y = x² + 2 (it is a quadratic function and < should be used because the endpoint is an open circle).

When the domain is x ≥ 1, we have:

y = -x + 2 (negative slope function and ≥ should be used because the endpoint is a closed circle).

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Answer:

Simplify 74? Did you forget something?

Step-by-step explanation:

It isn't possible to simplify a whole number...

Angle 2 and angle 3 are a pair of same-side interior angles

 Two angles that are on the same side of the transversal and inside                           (between) the two lines are referred to as same side internal angles.

The same side interior angles theorem states that the same side interior angles are additional when two parallel lines are split by a transversal.

So, the pair of angle 2 and angle 3 is same side interior angle.

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Answer:

There is 2 angles in the figure.

Step-by-step explanation:

the number 6 is in the hundredths place and 4 is in the ones place

The statement is true. Whether we calculate the area of a rectangle using the x-easy method or the y-easy method, the result will be the same.

The x-easy method refers to multiplying the length (l) of the rectangle by its width (w) to find the area, while the y-easy method refers to multiplying the width (w) by the length (l). Since multiplication is commutative, the order of the factors does not affect the product. Therefore, whether we calculate the area using the x-easy method (l × w) or the y-easy method (w × l), the result will be the same.

To illustrate this, let's consider an example. Suppose we have a rectangle with a length of 5 units and a width of 3 units. Using the x-easy method, the area would be 5 × 3 = 15 square units. Using the y-easy method, the area would be 3 × 5 = 15 square units. In both cases, the area of the rectangle remains the same, demonstrating that the order of multiplication does not affect the result.

Therefore, regardless of whether we use the x-easy method or the y-easy method, the area of a rectangle remains the same because the order of multiplication does not alter the product.

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Answer:

-8/7 slope

Step-by-step explanation:

so first u need to figure out the y=mx+b of ur equation 8x+7y=-28 to make it easier on urself yk. so first you get the y by it self and change it to become 7y= -8x-28 you do this by dragging the 8x to the other side which makes it negative since ur switching sides. now u divide each number by 7 since the 7y is by itself. doing this u get y= -8/7x-4. basically parallel = same slope so you will keep ur same slope or m as -8/7  and now all u need to find is b but in ur question u didnt give coordinates so irdk but ur answer has to have the -8/7 slope

Answer:

28

Step-by-step explanation:

76-48

Answer:

28

Step-by-step explanation:

Since matt has TWO family members and he made TWO cakes,one for each and the two cake sums up to a total of 76 candles and one of the cake has 48 candles,and you're trying to find how many candles are on the other cake,just subtract 48 from 76 and you'll get 28

76-48=28

Solution:

X^2+11x+30

=X^2+(6+5)x+30

=X^2+6x+5x+30

=X(x+6)+5(x+6)

=(X+6)(x+5).

So,the answer is (x+6)(x+5).

If swimming 1/4 of a mile uses about the same number of calories as running 1 mile.

a.  The distance her sister have to swim to use the same number of calories Gilda used during the marathon is 6 1/2 mile.

b. The number of miles that he would have to run to use the same number of calories used during his swim is 20 miles.

a. Number of miles:

1/4 swim / 1 run = x swim / 26 run

Cross multiply

= 6 1/2 mile

b.  Number of miles:

1/4 swim / 1 run = 5 swim/x

Cross multiply

x = 20 miles

Therefore the number of mile is 6 1/2 miles and 20 miles.

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The complete question is:

Swimming 1/4 of a mile uses about the same number of calories as running 1 mile.

a. Gilda ran a 26 mile marathon. About how far would her sister have to swim

to use the same number of calories Gilda used during the marathon?

b. Juan swims 5 miles a day. About how many miles would he have to run to

use the same number of calories used during his swim?

The circumference of the circle to the nearest hundredth is 21.98 inches.

The circumference of a circle is the measure of the boundary or the length of the complete arc of a circle.

The circumference of a circle is the perimeter of the circle. It's the wholes boundary of the circle.

The circumference of the circle can be found as follows:

circumference of a circle = 2πr

where

Therefore,

diameter of the circle = 7 inches

radius of the circle = 7 / 2 = 3.5 inches

Hence,

circumference of a circle = 2 × 3.14 × 3.5

circumference of a circle = 21.98 inches

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Answer:

A sample size of at least 9604 is required to estimate the percentage of popcorn seeds that collapse during cooking with a maximum margin of error of 0.010

To determine the sample size required for estimating the percentage of popcorn seeds that collapse during cooking with a specified margin of error, we can use the formula:

n = (z^2 * p * (1-p)) / E^2

Where:

n = sample size

z = z-value corresponding to the desired confidence level (in this case, 95% confidence level)

p = estimated proportion (since we don't have an estimate, we can use p = 0.5 as a conservative estimate)

E = maximum desired margin of error

Given that the maximum desired margin of error (E) is 0.010 and the desired confidence level is 95%, we need to find the corresponding z-value.

The z-value corresponding to a 95% confidence level (two-tailed) is approximately 1.96 when rounded to two decimal places.

Substituting the values into the formula, we have:

n = (1.96^2 * 0.5 * (1-0.5)) / 0.010^2

Simplifying the equation:

n = (3.8416 * 0.25) / 0.0001

n = 9604

Therefore, a sample size of at least 9604 is required to estimate the percentage of popcorn seeds that collapse during cooking with a maximum margin of error of 0.010, regardless of its true value and with a 95% confidence level.

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A sample size of at least 9604 is required to estimate the percentage of popcorn seeds that collapse during cooking with a maximum margin of error of 0.010

To determine the sample size required for estimating the percentage of popcorn seeds that collapse during cooking with a specified margin of error, we can use the formula:

n = (z^2 * p * (1-p)) / E^2

Where:

n = sample size

z = z-value corresponding to the desired confidence level (in this case, 95% confidence level)

p = estimated proportion (since we don't have an estimate, we can use p = 0.5 as a conservative estimate)

E = maximum desired margin of error

Given that the maximum desired margin of error (E) is 0.010 and the desired confidence level is 95%, we need to find the corresponding z-value.

The z-value corresponding to a 95% confidence level (two-tailed) is approximately 1.96 when rounded to two decimal places.

Substituting the values into the formula, we have:

n = (1.96^2 * 0.5 * (1-0.5)) / 0.010^2

Simplifying the equation:

n = (3.8416 * 0.25) / 0.0001

n = 9604

Therefore, a sample size of at least 9604 is required to estimate the percentage of popcorn seeds that collapse during cooking with a maximum margin of error of 0.010, regardless of its true value and with a 95% confidence level.

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Answer:

hope this helps :)

Step-by-step explanation:

Answer:

 (a)  20%

Step-by-step explanation:

The percent increase is found from ...

  % change = ((new) -(original))/(original) × 100%

  = (90 -75)/75 × 100% = 15/75 × 100%

  % change = 20%

The student's grade average increased by 20% of what it was.

_____

Additional comment

The student's grade average went up by 90-75 = 15 (points). These are often percentage points, so we could say the grade average increased by 15 percentage points.

The important point here is to be clear on what the basis is for computing a percentage change. If a score of 75 is the basis, then a change to a score of 90 is a change of 20% of that original score of 75.

If the maximum possible grade points are the basis, then a change from 75% of maximum to 90% of maximum is an increase of 15% of that maximum.

The wording here, "percent of increase in the student's grade average" suggests that the original grade average is the basis for measuring the change.

__

You often see (intentional) confusion of the basis in media reports. If violent crime, for example, increases from 2% of all crime to 3% of all crime, the media may claim a 50% increase in the rate of violent crime. On the other hand, it could be considered to be a 1% increase (3% -2% = 1%). If the relative increase is due to a large reduction in all crime, the actual amount of violent crime may have decreased. (2/100 = 2%; 1/33 = 3%) The numbers chosen will depend on who is reporting and what the purpose of the report is.

Answer:

To find area of the quadrilateral ABCD, now we have take the vertices A(x1, y1), B(x2, y2), C(x3, y3) and D(x4, y4) of the quadrilateral ABCD in order (counter clockwise direction) and write them column-wise as shown below. Add the diagonal products x1y2, x2y3, x3y4 and x4y1 are shown in the dark arrows.

Step-by-step explanation:

Answer:

Step-by-step explanation:

51 feet / 1.5 = 34 bags needed minimum

But trini needs more than 51 bags so:

X>34 is the answer

Answer:

The correct answer is Emmitt.

Step-by-step explanation:

no time to explain, you need this finished, also next time don't wait too late to do work, just saying ;)

Answer:

To estimate the value of (4.532789...)², we can square 4.53 and add the decimal point and digits that come after it:

4.53² = 20.4808

So (4.532789...)² would be approximately 20.4808