4th grade math!! Please help. Confused on whether I subtract or add

Answer:y times 20 p

Step-by-step explanation:

Answer:

D) 5

Step-by-step explanation:

-12 + 8 + 9 = 5

Answer:

its a

Step-by-step explanation:becayse i said so

Answer:

- Banking Operations salary in India with less than 1 year of experience to 10 years ranges from ₹ 1.4 Lakhs to ₹ 7 Lakhs with an average annual salary of ₹ 3.1 Lakhs based on 261 latest salaries

Answer:

\(a(1) = 144\)

\(a(n) = 144{( - \frac{1}{6} )}^{n - 1} \)

\(a(n) = - \frac{1}{6} a(n - 1)\)

Answer:

I think u are right

but I am not 100% sure

i think its

{x|x *greater than or equal symbol* 6}

The probability that among the first two songs played, exactly 1 of the 4 songs you like is played is 0.452 or 45.2%.

Probability is a measure of the likelihood of an event occurring. It is a numerical value between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

There are 4 songs that you like out of the 14 total songs, so the probability of selecting a song that you like on the first draw is 4/14.

On the second draw, the probability of selecting a song that you like is 3/13, since there are now 3 songs that you like out of the remaining 13 songs.

The probability of selecting exactly 1 of the 4 songs you like in the first two draws is given by:

P(exactly 1 like in first two draws) = (4/14) ×(10/13) + (10/14) × (4/13) = 0.452

Therefore, the probability that among the first two songs played, exactly 1 of the 4 songs you like is played is approximately 0.452 or 45.2%.

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To match the graphs of cylinders a and b to cylinders P and Q, we need to analyze the relationship between the height of the water and the volume of water in each cylinder.

Cylinder P would correspond to graph b, while Cylinder Q would correspond to graph a.

The reasoning behind this is as follows:

Cylinder P, corresponding to graph b, shows a steeper increase in height with increasing volume. This indicates that the water level rises quickly as more volume is added, suggesting that the cylinder has a smaller cross-sectional area. Since height is directly proportional to volume for a cylinder, a smaller cross-sectional area would result in a higher rise in height for the same volume of water.

Cylinder Q, corresponding to graph a, shows a slower increase in height with increasing volume. This implies that the water level rises more gradually as more volume is added, indicating a larger cross-sectional area. A larger cross-sectional area would result in a smaller increase in height for the same volume of water.

In summary, the steeper graph b matches Cylinder P with a smaller cross-sectional area, while the gentler graph a matches Cylinder Q with a larger cross-sectional area.

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Answer:

The surface of the rectangular prism is 42

l × w × h

The length is 3 width is 2 and the height is 3.

Hope this helps have an awesome day❤

Answer:

\( - x = 20 \\ so \: x \: will \: be \: = - 20\)

Hope it helps!

Answer: x = -20

Step-by-step explanation:

Question: If -x = 20, then x = ?

Multiply both sides of the equation by -1

(-1)(-x) = (-1)(20)

Simplify (remember that multiplying two negative numbers equals a positive number)

x = -20

you will watch TV for approximately 16 days out of the 28 days.

If you watch TV for 4 days out of 7 each week, then the fraction of the week that you spend watching TV is:

4/7

To find the total number of days you will watch TV over 28 days, you can use the proportion:

4/7 = x/28

where x is the number of days you will watch TV.

To solve for x, you can cross-multiply:

4 * 28 = 7 * x

112 = 7x

x = 112/7

x ≈ 16

Therefore, you will watch TV for approximately 16 days out of the 28 days.

What is proportion?

Proportion is a mathematical concept that expresses the relationship between two quantities or values. It is often represented as a fraction, with the numerator and denominator representing the values being compared.

In a proportion, the two ratios are equal. For example, if you have a bag of marbles containing 6 red marbles and 4 blue marbles, the proportion of red to blue marbles is 6:4, or 3:2. This can also be written as a fraction: 3/2.

Proportions are useful in many areas of mathematics and everyday life, including geometry, statistics, and finance. They are also used in problem-solving to find missing values or to determine if two values are proportional to each other.

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See explanation below

We pick points from the given table to graph the line:

point (t, V) = (0, 0), (1, 15), (2, 30), (3, 45), (4, 60) and (5, 75)

Where t (time) will be on the horizontal axis

V (volume) will be the on the vertical axis

Plotting the graph:

Graph of the first one could not contain all the points stated above, so I did another graph that include all points on the table.

See 2nd graph

As per the angle sum property, the interior angles that form the triangle is option

B. 60, 60, 60°

C. 40.50,90°

D. 30.60.90*

Angle sum property

Angle sum property states that the sum of all the interior angles of the triangle is equal to 180 degrees.

Given,

Here we have the list of interior angles

A. 45, 45, 45*

B. 60, 60, 60°

C. 40.50,90°

D. 30.60.90*

E. 90,90°, 45°

F. 90, 90, 90°

Now, we have to find in which for these angle will form the tringle.

As per the definition of the angle sum property, the sum of all the interior angle of the triangle is 180°.

Based on these we have to verify each of the given interior angles,

A) 45 + 45 + 45 = 135

B. 60 + 60 + 60 = 180

C. 40 + 50 + 90 = 180

D. 30 + 60 + 90 = 180

E. 90 + 90 + 45 = 225

F. 90 + 90 + 90 = 270

Therefore, based on these values we have identified that the options (B), (C), and (D) forms the triangle.

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Answer:

-ab

Step-by-step explanation:

Answer:

Negative

Step-by-step explanation:

Positive * negative = negative

Answer:

(0,5)

Step-by-step explanation:

The y-intercept is where the graph crosses the y-axis, and where x=0.

(0,5)

Answer:

7

Step-by-step explanation:

Given the following data:

Average speed : 60.5, 63.2, 54.7, 51.6, 72.3, 70.7, 67.2, and 65.4

To construct a one-sample t - statistic, the value of the degree of freedom will be ;

In a one sample test of known mean, if the number of observations are 4, one can choose to vary at most three of the observations and still obtain the mean, that is the 4th observation must remain fixed.

Degree of freedom = Number of observations (n) - 1. This is the maximum number of independent variables which can be varied.

Nunber of observations or sample size in the data above is 8

Hence,

Degree of freedom = (8 - 1) = 7

Answer:the anwser is 7

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

150 x 0.6 = 90

or

150/10 = 15

15 x 6 = 90

Answer:90 is correct

Step-by-step explanation:

The solutions to the equation over the interval [0°, 360°) are: x = 45°, 135°, 225°, 315°.

We can rewrite this equation as:

1 - sin² x = sin²x

Solving for sin x, we get:

sin x = ±✓(1/2)

Since sin x is positive in the first and second quadrants and negative in the third and fourth quadrants, we have:

sin x = ✓(1/2) = 1/✓(2) in the first and second quadrants, corresponding to x = 45° and 135°.

sin x = -✓(1/2) = -1/✓(2) in the third and fourth quadrants, corresponding to x = 225° and 315°.

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Answer:

x = 11

Step-by-step explanation:

The two angles measuring (7x + 14)° and (9x - 8)° are corresponding angles, which are always congruent to each other and thus equal to each other.  

Step 1:  Thus, we can find the value of x by setting the two angles equal to each other:

7x + 14 = 9x - 8

7x + 22 = 9x

22 = 2x

11 = x

Optional Step 2:  We can check that we've found the correct answer by plugging in 11 for x in both (7x + 14) and (9x - 8) and checking that we get the same number:

7(11) + 14 = 9(11) - 8

77 + 14 = 99 - 8

91 = 91

Answer:

Whereby circle \(\bigodot\)P can be obtained from circle \(\bigodot\)O by applying the transformations of a translation of T₍₁₄, ₋₈₎ followed by a dilation by a scale factor of 2.4, \(\bigodot\)O is similar to \(\bigodot\)P

Step-by-step explanation:

The given center of the circle \(\bigodot\)O = (-2, 7)

The radius of \(\bigodot\)O, r₁ = 5

The given center of the circle \(\bigodot\)P = (12, -1)

The radius of \(\bigodot\)P, r₂ = 12

The similarity transformation to prove that \(\bigodot\)O and \(\bigodot\)P are similar are;

a) Move circle \(\bigodot\)O 14 units to the right and 8 units down to the point (12, -1)

b) Apply a scale of S.F. = r₂/r₁ = 12/5 = 2.4

Therefore, the radius of circle \(\bigodot\)O is increased by 2.4

We then obtain \(\bigodot\)O' with center at (12, -1) and radius r₃ = 2.4×5 = 12 which has the same center and radius as circle \(\bigodot\)P

∴ Circle \(\bigodot\)P can be obtained from circle \(\bigodot\)O by applying similarity transformation of translation of T₍₁₄, ₋₈₎ followed by a dilation by a scale factor of 2.4, \(\bigodot\)O is similar to \(\bigodot\)P.

Answer:

9.95h + 5  ≤ 125

Step-by-step explanation:

let 'h' = number of hats

Answer:

120%

Step-by-step explanation:

Hope this helps

Answer:

A. y+11

Step-by-step explanation:

-3/3 = -1

12 + ( -1 ) = 11

y + 11

hope this helped :)

Answer:

Step-by-step explanation:

The exponent is -3, making it 10 to the power of negative 3. When an exponent is negative, the solution is a number less than the origin or base number. To find our answer, we move the decimal to the left 3 times:

9.2 -> 0.0092

The answer is D.

Answer:

0.0092.

Step-by-step explanation:

I have an explanation on this same question. Apparently, you have a duplicate of this.

They can buy 120 vans, 60 small trucks, and 80 large trucks.

The truck company plans to spend 10 million on 260 vehicles. Each commercial van cost 25,000 dollars. Each small truck 50,000 dollars and each large truck 50,000 dollars. They needed twice as many van as small truck

Therefore,

let

s = number of small truck

number of van = v

let

l = number of large truck

v + s + l = 260

25,000(v) + 50,000(s) + 50,000(l) = 10,000, 000

v + 2s + 2l = 400

Hence,

v = 2s

So,

2s + 2s + 2l = 400

4s + 2l = 400

2s + s + l = 260

3s + l = 260

2s + l = 200

s = 60

l = 200 - 2(60)

l = 200 - 120

l = 80

v = 2(600 = 120

Therefore, they can buy the following:

number of small truck = 60

number of van = 120

number of large truck = 80

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Answer:

-5.875

Step-by-step explanation:

Therefore, the probability that a woman will give birth to two boys is only one in three, whereas the probability that a man will do so is one in two.

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

Here,

The woman may have at least one boy in the three following ways: 1) older boy, younger girl; 2) older girl younger boy; 3) older boy, younger boy.

But the man's children may be distributed in only two ways: 1) older boy, younger girl; or 2) older boy, younger boy.

So the chances are only 1 out of 3 that the woman has two boys, but the chances are 1 out of 2 that the man has two boys.

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Answer:

D) We are 95 percent confident that the mean difference in scores for all children in the program is between 20.1 points and 23.9 points.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

95 percent confidence interval (20.1,23.9)

We are 95% sure that the population mean(that is, the mean for all children in the program) is in this interval. So the correct answer is given by option D.