What is the solution for -2 + x <4

Answer:

the answer is b

Step-by-step explanation:

first i did 18 divided by 6=3

then 8x7=56

3+56=59

59-12=47

8x2=16

47+16=63

Answer:

B.) 63

Step-by-step explanation:

18 divided by 6 = 3

8x7=56

3+56=59

59-12=47

8x2=16

47+16=63

Answer:

-4.2 (least) < -2 < -1 < -4/5 < 3.5 (greatest)

| | is called absolute value, but you can ignore it as |-4.2| equals to -4.2

As the surface area will be expressed in square units.

To find the surface area of a triangular prism, you need to calculate the area of each face and add them together. A triangular prism has three rectangular faces and two triangular faces.

To calculate the area of a triangular face, you need the base and height of the triangle. Multiply the base length by the height, and then divide the result by 2. Repeat this process for both triangular faces.

To find the area of a rectangular face, you need the length and width of the rectangle. Multiply the length by the width to obtain the area. Repeat this process for all three rectangular faces.

Finally, add the areas of all the faces together to get the total surface area of the triangular prism.

Remember to label the units correctly, as the surface area will be expressed in square units.

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The total surface area of the triangular prism is sum of areas of individual shapes that make up the prism

From the question, we have the following parameters that can be used in our computation:

The triangular prism

The surface area of the triangular prism is calculated as

Surface area = sum of areas of individual shapes that make up the net of the triangular prism

Take for instance, we use the attached figure

Using the above as a guide, we have the following:

Area = 1/2 * 10 * 24 * 2 + 11 * 26 + 10 * 11

Evaluate

Area = 636

Hence, the surface area is 636 square meters

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Answer:

22.5

Step-by-step explanation:

To find the probability that exactly 3 electric bulbs are defective, we can use the binomial probability formula.

The probability of success (defective bulb) is 1% or 0.01, and the probability of failure (non-defective bulb) is 99% or 0.99. Plugging in these values into the formula, we have P(X = 3) = (250 choose 3) * 0.01^3 * 0.99^(250-3), where (250 choose 3) represents the combination of choosing 3 bulbs out of 250. Evaluating this expression gives us the desired probability. The probability that exactly 3 electric bulbs are defective in a random sample of 250 bulbs can be calculated using the binomial probability formula. By plugging in the values for the probability of success (defective bulb) and failure (non-defective bulb), along with the combination of choosing 3 bulbs out of 250, we can determine the probability.

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The sample means are distributed along the x-axis for a sampling distribution of a sample mean.

A sample mean is an average of a set of data, that can be used to calculate the central tendency, standard deviation and the variance of a data set.

Now,

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Answer:

4/45

Step-by-step explanation:

8 - 4

9   5

=  8 × 5 - 4 × 9

       9 × 5   5 × 9

=  40 - 36

       45   45

=  40 – 36

            45

=  4

      45

8/9 - 4/5

= 4/45

Answer:

1,75 m

Step-by-step explanation:

The radius is by definition half of the diameter and so the half of 3.5 m is 1.75 m

Answer:

1.75m

Step-by-step explanation:

d=3 ½

r=d÷2

so 3 ½ ÷ 2= 1.75

Answer:

c 15.9 m

Step-by-step explanation:

you are welcome

Answer:

If you use 30 instead of 15, that means that  your sum will double

Step-by-step explanation: 30 is double 15

Perimeter of the triangle after dilation is 208.5 units. It is given that a triangle with a perimeter of 139139 units is dilated by a scale factor of 1/41/4.

Since a triangle's perimeter is the sum of its three sides, we may use it to locate the original lengths of the triangle's sides.

Let us call the original lengths of the triangle's sides x, y, and z.

139 = x + y + z...

We will represent the lengths of the triangle's sides after dilation as X, Y, and Z.

x/4 = X

y/4 = Y

z/4 = Z

Thus, the perimeter of the triangle after dilation is X + Y + Z.

The perimeter of the triangle after dilation is:

X + Y + Z = x/4 + y/4 + z/4

= 139/4 + 139/4 + 139/4

= 417/2

= 208.5.

Perimeter of the triangle after dilation = 208.5 units

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a typical neighborhood, which consists of two blocks east-west and three blocks north-south, covers an area of 75,000 square meters or 300,000 square meters.

The size of each street block is given as 50 meters north-south by 250 meters east-west. Therefore, the area of each block can be calculated as 50 meters * 250 meters = 12,500 square meters.To find the area covered by a typical neighborhood, which consists of two blocks east-west and three blocks north-south, we multiply the number of blocks in each direction. The neighborhood covers 2 blocks east-west * 3 blocks north-south = 6 blocks in total.

The total area covered by the neighborhood can be calculated by multiplying the number of blocks by the area of each block. Thus, 6 blocks * 12,500 square meters/block = 75,000 square meters.

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Answer:

12 cups

Step-by-step explanation

If the size of the bag decreased by 20%, so will the number of cups held.

Number of cups held before the change = 15 cups

If the number of cups held after the 20% reduction in the size of the bag

= (100 - 20)% × 15

=80% × 15

= 12 cups

The new bags will hold 12 cups.

There are 693 cubic inches in 3.0 gallons.


To find the number of cubic inches in 3.0 gallons, we need to use a conversion factor.

One gallon is equal to 231 cubic inches (according to the US system of measurement), so we can set up the following proportion:

1 gal / 231 in³ = 3 gal / x

Solving for x, we can cross-multiply and get:

x = (3 gal)(231 in³ / 1 gal)

x = 693 in³

Therefore, there are 693 cubic inches in 3.0 gallons.

Since the original measurement has only one significant figure (3), the final answer should also have only one significant figure (693).

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1° and 14° are acute angles.  

An acute angle is one that is less than 90°, or one that is between 0° and 90°.  

The opposite of an acute angle is an obtuse angle. In other terms, an obtuse angle is one that is larger than 90° and less than 180°. It is the angle that is between 90° and 180°.

90° is the standard for a right angle. Any angle that is less than 90° is called acute, and any angle that is larger than 90° is called obtuse.

∠1 and ∠14 are less than 90° therefore, they are acute angles.

Correct question :

What type of angle are 1° and 14°?

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The statement that 99% of all confidence intervals with a 99% confidence level should contain the population parameter of interest is false.

A confidence interval (CI) is essentially a range of estimates for an unknown parameter in frequentist statistics. The most frequent confidence level is 95%, but other levels, such 90% or 99%, are infrequently used for generating confidence intervals.

The confidence level is a measurement of the proportion of long-term associated CIs that include the parameter's true value. This is closely related to the moment-based estimate approach.

In a straightforward illustration, when the population mean is the quantity that needs to be estimated, the sample mean is a straightforward estimate. The population variance can also be calculated using the sample variance. Using the sample mean and the true mean's probability.

Hence we can generally infer that the given statement is false.

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Answer:

−9t−4

Step-by-step explanation:

Answer:

$15.61

Step-by-step explanation:

Number of students = 17

Total amount to be raised = $483.62

Amount already raised = $218.25

So, amount remained to be raised

= Total amount to be raised - amount already raised

= $483.62 - $218.25

= $265.37

Each student raises the same amount.

So, amount to be raised by each student

= Amount remained to be raised / Number of students

= $265.37 / 17

= $15.61

we can say that the teacher's gοal οf a standard deviatiοn οf at mοst 8 pοints was achieved, at a 5% level οf significance.

A measure οf a grοup οf values' variance οr dispersiοn in statistics is called the standard deviatiοn. When the standard deviatiοn is lοw, the values are mοre likely tο fall within a narrοw range, alsο knοwn as the expected value, whereas when the standard deviatiοn is high, the values tend tο be clοser tο the mean.

The lοwercase Greek letter sigma, which stands fοr the pοpulatiοn standard deviatiοn, οr the Latin letter s, which stands fοr the sample standard deviatiοn, are mοst frequently used in mathematical equatiοns and texts tο represent standard deviatiοn. Standard deviatiοn is alsο sοmetimes referred tο as SD.

suppοse that οn a 100-pοint test, the teacher's gοal is fοr her students' exam scοres tο have a standard deviatiοn οf at mοst 8 pοints.

chi²\(= (n-1)*s^2 /\sigma^2\)

where n is the sample size, s is the sample standard deviatiοn, and sigma is the hypοthesized pοpulatiοn standard deviatiοn under the null hypοthesis.

In this case, n = 25, s = 9.5, and sigma = 8. Substituting these values, we get:

chi² \(= (25-1)*9.5^2 / 8^2 = 33.64\)

The degrees οf freedοm fοr this test is n-1 = 24. Using a chi-squared table with 24 degrees οf freedοm, we find that the critical value fοr a οne-tailed test at a 5% level οf significance is 36.42.

Therefοre, we can say that the teacher's gοal οf a standard deviatiοn οf at mοst 8 pοints was achieved, at a 5% level οf significance.

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Answer:

1) Slope: 3; y-intercept: -7

2) Slope: 2/3; y-intercept: 1

Step-by-step explanation:

y = mx + b; m is slope and b is y-intercept

1. y = 3x - 7

The equation is already in slope-intercept form, so you can find the slope and intercept.

Slope: 3

y-intercept: -7

2. y - 1 = 2/3x

For this one, you have to convert this into slope-intercept form (solving for y)

y - 1 = 2/3x

Add 1 to both sides

y - 1 + 1 = 2/3x + 1

y = 2/3x + 1

Now that the equation is in slope-intercept form, you can get the slope and y-intercept.

Slope: 2/3

y-intercept: 1

Answer:

about 55 grams.

Step-by-step explanation:

you do 45.9 times 12 because a dozen is twelve

Answer: triangle, rectangle, pentagonal

Step-by-step explanation: b x h and length x width = base.

Answer:

Step-by-step explanation:

b+9≤2

Subtract 9 from both sides:

9+b≤2

subtract 9 on each side which will be -7

the answer will be b≤-7

Answer:

For this exercise, we need to add to the $200 the cost of the hours the DJ has been working

If each hour costs 12.50 $ and he worked 8.5 hours, we can just multiply to see the price of their work:  12.5 * 8.5 = $106.25

Now, we can do the sum: 200 + 106.25 = $306.25

Answer:

yes its a polynomial espero te sirva

Answer:

The simplest form of 50:30 is 53.

Step-by-step explanation:

\(\huge\text{Hey there!}\)

\(\large\text{Simplify the ratio 50:30}\)

\(\\\textsf{Finding your GCF}\downarrow\\\\\textsf{30: 1, 2, 3, 5, 10, 15, 30}\\\textsf{50: 1, 2, 5, 10, 25, 30}\\\\\bold{GCF: \underline{10}}\large\checkmark\)

\(\large\text{DIVIDE BOTH of the TERMS by 10}\)

\(\mathsf{50\div10=5}\\\mathsf{30\div10=3}}\)

\(\large\text{We had to reduce the ratio of 50:30 to your LOWEST TERMS}\\\large\text{by DIVIDING each of the TERMS by 10}\)

\(\bold{Thus, that\ means\ that\ 50:30\ is\ simplified\ to \rightarrow 5:3}\)

\(\boxed{\boxed{\huge\text{Answer: \bold{5:3}}}}\huge\checkmark\)

\(\large\text{Good luck on your assignment and enjoy your day!}\)

~\(\frak{Amphitrite1040:)}\)

Answer:

x = 0, 4

Step-by-step explanation:

2x² = 8x ( subtract 8x from both sides )

2x² - 8x = 0 ← factor out 2x from each term

2x(x - 4) = 0

Equate each factor to zero and solve for x

2x = 0 ⇒ x = 0

x - 4 = 0 ⇒ x = 4

The value of x in the trapezoid is 117°.

A trapezoid is a quadrilateral a four-sided polygon with two parallel sides and two non-parallel sides. The parallel sides are most call the bases of the trapezoid, and the non-parallel sides are called the legs.

In a trapezoid, the opposite angles are supplementary. Therefore, we can set up an equation:

x + 63° = 180°

Solving for x, we get:

x = 180° - 63°

x = 117°

Therefore, the value of x in the trapezoid is 117°.

Full question "Find the value of x in the trapezoid below.

X

63°

X = = [?]°"

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