I need quick help with this!! 15 PTS POSSIBLE!!! i know for sure its not 3/50, but i think its 3/20? and explain your reasoning.

Answer:

5

Step-by-step explanation:

theres 5 gaps. just count

Answer: OPTION A. 5

Step-by-step explanation:

The value of MN is the distance between M and N.

Since distance is always positive we use absolute value. This means, that in contents of this question, M-N or N-M does not make any difference in result.

M=-3

N=2

-------------------------------------------------------------

 | value 1-value2 |

=| M-N |

=| -3-2 |

=| -5 |

=5

--------------------------------------------------------------

The slope of the line is undefined.

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

Two points on the line are (-4, 6) and (-4, 1)

Now,

Since, The equation of line passes through the points (-4, 6) and (-4, 1)

So, We need to find the slope of the line.

Hence, Slope of the line is,

m = (y₂ - y₁) / (x₂ - x₁)

m = (1 - 6) / (-4 - (-3))

m = - 5 / 0

m = ∞

Thus, The slope of the line is undefined.

Learn more about the equation of line visit:

https://brainly.com/question/18831322

#SPJ1

Answer:

tenth

Step-by-step explanation:

Answer:

A. Yes, because 3 ^2 + 4^2 = 5^2

Step-by-step explanation:

A. Yes, because 3 ^2 + 4^2 = 5^2

The values x such that (6, x, −11) and (5, x, x) are orthogonal is 6,5.

The orthogonal vectors have dot product to be zero. Thus, the formula to be used is -

a . b = a1b1 + a2b2 + a3b3, where a1, a2 and a3 are components a vector and b1, b2 and be are components of b vector.

Keep the values in formula -

a . b = 6(5) + x² + (-11)x

a . b = 30 + x² - 11x = 0

So, x² - 11x + 30 = 0

x(x - 6) - 5(x - 6) = 0

(x - 6) (x - 5) = 0

So, the value of x is 6,5.

Learn more about orthogonal vector -

https://brainly.com/question/15587050

#SPJ4

An inequality like the statement, x + 3 > 5, can be solved by finding the value of the variable, "x", which is x > 2.

Inequalities are used to express relationships between quantities or values that are not equal. They can be used to describe constraints or limitations on a solution to a problem, or to represent a range of possible values.

Inequality can also be used to describe relationships between variables in algebraic expressions or equations.

To solve an inequality, we need to isolate the variable in the given statement to determine the value of the variable.

For example, given the inequality, x + 3 > 5, in order to solve this inequality, we need to find the value of x by subtracting 3 from both sides:

x + 3 - 3 > 5 - 3

x > 2.

Learn more about solving inequality on:

https://brainly.com/question/24372553

#SPJ1

Answer:

-4

Step-by-step explanation:

To find the slope, you can use the formula y2-y1/x2-x1. Plugin any set of values. Say 13 is y2, and 5 is y1. 13-5=8. We now have 8/x2-x1. You have to use the x-values of the y-values that you already used. -2 is x2 and 0 is x1. -2-0=-2. 8/-2 = -4.

In the picture there are 10 question.

1. Identify the 1st 10 perfect squares?

The 1st 10 perfect squares are 1,4,9,16,25,36,49,64,81 and 100.

\(1^{2} =1\\2^{2} =4\\3^{2} =9\\4^{2} =16\\5^{2} =25\\6^{2} =36\\7^{2} =49\\8^{2} =64\\9^{2} =81\\10^{2} =100\\\)

2. What does it mean for a number to a perfect square? provide an example.

By squaring a whole number or an integer, one can create perfect squares. Let's examine an illustration to get the idea behind perfect squares. We can use a set of four and a second set of six marbles for this. Let's set the marbles in order.

See the figure(1).

With four marbles, we can create a square with two rows and two marbles in each row. We can create a rectangle with 6 marbles that has 2 rows with 3 marbles in each row. It signifies that 4 = 2\(\times\)2 and 6 = 3\(\times\)2 mathematically. Let's concentrate just on the square-shaped numerals. Here, 4 = 2 × 2 = \(2^{2}\).

Square A is smaller then Square B. Square B is smaller then Square C.

The 3 Square side length are3,4.2 and\(5\frac{1}{2}\).

complete the equation each of the square shown.

3. Square A=Area=\(3^{2}\)=9

4. Square B= Area=\(4.2^{2}\)=17.64

5. Square C=Area= \(\frac{5}{2} =\frac{25}{4}\)

Find the length of the side of the square for each area is given

6.81 square inches

Area=81=\(s^{2}\)

s=9

7. \(\frac{4}{25} cm\)

area=\(\frac{4}{25} cm\)=\(s^{2}\)

s=\(\frac{2}{5}\)

8.0.49 Square unit

area=0.49=\(s^{2}\)

s=0.7

The graph represent the equation \(y=x^{2}\).

9.complete the table of values to find corresponding y-values.

if x =-1.4

Substituting in the equation \(y=x^{2}\)

Then y=\(-1.4^{2}\)

y=1.96.

Therefore, (x,y)=(-1.4,1.96)

if x =-1

Substituting in the equation \(y=x^{2}\)

Then y=\(-1^{2}\)

y=1.

Therefore, (x,y)=(-1,1)

if x =0

Substituting in the equation \(y=x^{2}\)

Then y=\(0^{2}\)

y=0.

Therefore, (x,y)=(0,0)

if x =\(\frac{2}{5}\)

Substituting in the equation \(y=x^{2}\)

Then y=\((\frac{2}{5}) ^{2}\)

y=\(\frac{4}{25}\).

Therefore, (x,y)=(\(\frac{2}{5}\),\(\frac{4}{25}\))

if x =2

Substituting in the equation \(y=x^{2}\)

Then y=\(2^{2}\)

y=4.

Therefore, (x,y)=(2,4)

10. why the graph of equation  \(y=x^{2}\) is above x-axis.

Because the \(y=x^{2}\\\) the x values are always positive because x as a square. So, the equation is always on x- axis or above x-axis.

To learn more about squares visit: https://brainly.com/question/14198272

#SPJ9

The expression  \($1\frac{2}{7}x -1=26\)  gives {x} value as equivalent to 21.

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is the expression as -

\($1\frac{2}{7}x -1=26\)

We can write the expression as -

(9/7)x - 1 = 26

(9/7)x = 27

x = (27 x 7)/9

x = 3 x 7

x = 21

Therefore, the expression  \($1\frac{2}{7}x -1=26\)  gives {x} value as equivalent to 21.

To solve more questions on expressions, visit the link below -

brainly.com/question/1041084

#SPJ1

Answer:

The answer is 19.25

Step-by-step explanation:

Key skills needed: Fraction operations, decimal conversion

1) We are given the hint to use 9 as "b", and we get:

---> \(a = \frac{16}{8}(9) + \frac{10}{8}\)  

Let's do  \(\frac{16}{8}(9)\)

--> \(\frac{16}{8}\) is the same as \(16\) ÷ \(8\)

16 divide by 8 is 2.

2) This means that it would be  ---> \(2(9)\)  which is simply 2 times 9.

2 times 9 = 9 + 9 = 18

3) With that result, it would be  ---> \(a = 18 + \frac{10}{8}\)

Now, do \(\frac{10}{8}\) (10 divided by 8)  ---> Get 1.25

4) 18 + 1.25 = 19.25, so --> \(a = 19.25\) is the answer

Hope you understood and have a nice day!!   :D

Answer: 6√6

Multiply the numbers outside of the square root and then multiply the numbers inside of the square root.

:)

Step-by-step explanation:

(2√2)(3√3)

= 2×3 (√2×√3)

= 6√6

Answer:

ASA

Step-by-step explanation:

Given: HQ bisects both ∠MHR and ∠MQR Prove: △HMQ ≅ △HRQ

Statement Reason

HQ bisects both ∠MHR and ∠MQR | Given

∠MHQ = ∠HRQ and ∠MQH = ∠RQH | Definition of angle bisector

HQ = HQ | Reflexive property of equality

△HMQ ≅ △HRQ | AAS rule

Answer:

x > - 3/7

Step-by-step explanation:

6x - 2x - 4 > 2 - 3 (x + 3)

6x - 2x - 4 > 2 - 3x - 9

4x - 4 > 2 - 3x - 9

4x - 4 > - 7 - 3x

4x - 4 + 3x > - 7

4x + 3x > - 7 + 4

7x > - 7 + 4

7x > - 3

Answer:

Answer:

1/9

Step-by-step explanation:

4 people use all three facilities, then

16 - 4 = 12 people use the gym and the track and do not use the pool;

9 - 4 = 5 people use the pool and the track and do not use the gym;

19 - 4 = 15 people use the gym and the pool and do not use the track.

At least two facilities use 4 + 12 + 5 + 15 = 36 people, 4 of them use all three facilities. Thus, the probability that a randomly selected person which uses at least two facilities, uses all the facilities is 4/36=1/9

We need to evaluate the following expression:

Where S is equal to 108, L is equal to 7 and W is equal to 3. We have:

\(\bold{\huge{\blue{\underline{ Solution }}}}\)

Here, We have,

\(\sf{√(a-b-c)(b-c-d)=√ab-√bc-√cd}\)

From above, We can conclude that,

a = bk, b = ck, c = dk

a = dk³ , b = dk² , c = dk

By solving RHS :-

\(\sf{√(a - b - c)(b-c-d) }\)

\(\sf{√(dk³ - dk² - dk) (dk² - dk - d) }\)

\(\sf{√d(k³- k² - k) d(k² - k - 1)}\)

\(\sf{d√(k³- k² - k) d(k² - k - 1)}\)

\(\sf{d√k(k²- k - 1)(k² - k - 1)}\)

\(\sf{d(k²- k - 1)√k ...eq(1)}\)

By solving LHS :-

\(\sf{√ab - √bc - √cd}\)

\(\sf{√dk³(dk²) - √dk²(dk)-√dk(d)}\)

\(\sf{√d²k^5 - √ d²k³ - √d²k}\)

\(\sf{dk²√k - dk√k - d√k}\)

\(\sf{(dk² - dk - d)√k}\)

\(\sf{d(k²- k - 1)√k...eq(2)}\)

From eq(1) and eq(2)

\(\bold{\red{ LHS = RHS }}\)

That is,

\(\sf{√(a-b-c)(b-c-d)=√ab-√bc-√cd}\)

Yes, the RHS and the LHS are equal/

Given:

\(a/b= b/c = c/d\)

We have to prove that √(a - b - c)(b-c-d) = √ab-√bc-√cd

Hence, after we expand the brackets and evaluate, we see that:

After the evaluation of the RHS and LHS, we can see that

RHS= LHS .

Read more about maths expressions here:

https://brainly.com/question/2164351

Comparing the means of the two samples, we find that the difference between the means is significant. Therefore, we can reject the claim and conclude that male and female high school students have different exam scores.

To perform the two-sample t-test, we first calculate the standard error of the difference between the means using the formula:

SE = sqrt((s1^2 / n1) + (s2^2 / n2))

Where s1 and s2 are the population standard deviations of the male and female students respectively, and n1 and n2 are the sample sizes. Plugging in the values, we have:

SE = sqrt((47^2 / 49) + (4.3^2 / 53))

Next, we calculate the t-statistic using the formula:

t = (x1 - x2) / SE

Where x1 and x2 are the sample means. Plugging in the values, we have:

t = (239 - 21.1) / SE

We can then compare the t-value to the critical t-value at α = 0.01 with degrees of freedom equal to the sum of the sample sizes minus 2. If the t-value exceeds the critical t-value, we reject the null hypothesis.

In this case, the t-value is calculated and compared to the critical t-value using the provided standard normal distribution table. Since the t-value exceeds the critical t-value, we can reject the claim that male and female high school students have equal exam scores.

Therefore, the correct answer is:

B. Male and female high school students have different exam scores.

Learn more about hypothesis testing here: brainly.com/question/17099835

#SPJ11

The solution is found below

Generally,  From the information, observe that Y is the discrete random variable with mean\($\mu_{\text {and variance }} \sigma^2$\)Consider W is the random variable and it is defined as W=2 Y

a)

Yes.

The mean of W is larger than the mean of Y.

That is, E(W)>E(Y)

Since in general \($(2 \times 2) > 2,(3 \times 3) > 3,(4 \times 4) > 4, \ldots, 2 Y > Y$,\)

2 Y  >Y

W  >Y

E(W)  >E(Y)

b)

Express \(E(W)=E(2 Y)_{\text {in terms of }} \mu=E(Y)$\)

\(\begin{aligned}E(W) & =E(2 Y) \\& =2 E(Y) \quad\left(\begin{array}{l}\text { Since } E(Y)=\mu \text { and } \\E(\{cg}(Y))=c E(g(Y))\end{array}\right) \\& =2 \mu\end{aligned}\)

Yes. Since the anticipated value of W is twice as great as the expected value of Y, this conclusion is consistent with section (a).

c)

Yes.

The Variance of W is larger than the variance of $Y$.

That is, V(W)>V(Y)

Since in general\((2 \times 2) > 2,(2 \times 3) > 3, \ldots, 2 Y > Y$\)

\(\begin{aligned}2 Y & > Y \\V(2 Y) & > Y \\V(W) & > V(Y)\end{aligned}\)

d)

Prove that \($V(W)=4 \sigma^2$\)

\(\begin{array}{rlrl}V(W) & =E\left\{\left(W-\mu_W\right)^2\right\} & & \\& =E\left\{(2 Y-2 \mu)^2\right\} & \left(\begin{array}{l}\text { Since } W=2 Y \text { and } \\E(W)=2 \mu\end{array}\right) \\& =E\left\{2^2(Y-\mu)^2\right\} & & \\& =E\left\{4(Y-\mu)^2\right\} & & \\& =4 E\left\{(Y-\mu)^2\right\} & & (\text { Since } E(c g(X))=c E(g(X))) \\& =4 \sigma^2 & & \left(\text { Since } E\left\{(Y-\mu)^2\right\}=\sigma^2\right)\end{array}\)

Read more about a discrete random variable

https://brainly.com/question/17238189

#SPJ1

Answer:

photos is not

Step-by-step explanation:

clearly posted

Answer:

If there is a very weak correlation between two variables, then the coefficient of determination (R-squared) must be low as well.

This is because the coefficient of determination measures the proportion of variance in the dependent variable that can be explained by the independent variable(s).

When the correlation between the variables is weak, there is less variance in the dependent variable that can be explained by the independent variable(s), resulting in a lower R-squared value. So, the answer is "low".

To know more about coefficient of determination refer here

https://brainly.com/question/28975079#

#SPJ11

Answer:

  (a)  $1350.46

  (b)  $50.46

Step-by-step explanation:

You want to know the future value of a $1300 CD earning 1.27% compounded monthly for 3 years, along with the amount of interest earned.

The compound interest formula tells you the future value is ...

  FV = P(1 +r/12)^(12·t)

where r is the annual interest rate and t is the number of years.

Using the given values, we have ...

  FV = $1300(1 +0.0127/12)^(12·3) ≈ $1350.46

(a) The value after 3 years is $1350.46.

The interest earned is the difference between the final value and the amount of the original investment:

  Interest = $1350.46 - 1300.00 = $50.46

(b) The interest earned by the CD is $50.46.

<95141404393>

Answer:

Answer Expert Verified

4.0/5

170

nikitasingh79

Genius

15.5K answers

114.1M people helped

Identity:

An identity is an equality which is true for all values of a variable in the equality.

(a + b)³ = a³+ b³+ 3ab(a + b)

In an identity the right hand side expression is called expanded form of the left hand side expression.

---------------------------------------------------------------------------------------------------

Solution:

(i) (2x + 1)³

Using identity

(a + b)³ = a³+ b³+ 3ab(a + b)

(2x + 1)³

= (2x)³ + 1³ + (3×2x×1)(2x + 1)

= 8x³+ 1 + 6x(2x + 1)

= 8x³ + 1 + 12x² + 6x

(ii) (2a – 3b)³

Using identity,

(a – b)³ = a³–b³ – 3ab(a – b)

(2a – 3b)³ = (2a)³– (3b)³ – (3×2a×3b)(2a – 3b)

=8a³–27b³–18ab(2a –3b)

= 8a³–27b³–36a²b + 54ab²

(iii) [3x/2  + 1]³

Using identity,

(a + b)³ = a³+ b³+ 3ab(a + b)

[3x/2 +1]³

=(3x/2)³+1³+ (3×(3x/2)×1)(3x/2+ 1)

=27x³/8+1+9/2x×(3x/2+1)

= 27x³/8 + 1 + 27/4 x² + 9/2x

= (27/8)x³ + (27/4) x² + 9/2 x + 1

(iv) [x–2/3 y]³

Using identity,

(a - b)³=a³-b³-3ab(a-b)

(X+ 2/3y)³

= (x)³–(2/3 y)³– (3×x×2/3 y)(x – 2/3 y)

= x³– 8y³/27–2xy(x – 2/3 y)

= x³– (8/27)y³–2x²y+ 4/3xy²

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

Hope this will help you....

Step-by-step explanation:

Answer:

y=-1/2x+2.5

Step-by-step explanation:

The slope is negative so the line would be ing to left side of the coordinate plane. the next point would be (-1,3) meaning that the line would pass the y-axis at 2.5.

Answer:31.5 cm

Step-by-step explanation:

3 x 10.5

Answer:

D. 10x-20

Step-by-step explanation:

The perimeter is just all four sides added together

(3x-2)+(3x-2)+(2x-8)+(2x-8)

add together like terms

3x+3x+2x+2x=10x

-2+-2+-8+-8=-20

write in order

10x-20

The annual growth rate in population of 1.2% means that the population is increasing by 1.2% of the current population each year. To find the time it will take for the population to reach 10 billion, we need to use the following formula:P(t) = P0 × (1 + r)^twhere P0 is the initial population, r is the annual growth rate, t is the time (in years), and P(t) is the population after t years.

We can use this formula to solve the problem as follows: Let \(P0 = 7.6 billion, r = 0.012 (since 1.2% = 0.012)\), and P(t) = 10 billion. Plugging these values into the formula, we get: 10 billion = 7.6 billion × (1 + 0.012)^t Simplifying the right side of the equation, we get:10 billion = 7.6 billion × 1.012^tDividing both sides by 7.6 billion, we get:1.3158 = 1.012^tTaking the natural logarithm of both sides,

we get:ln\((1.3158) = ln(1.012^t)\) Using the property of logarithms that ln \((a^b) = b ln(a)\), we can simplify the right side of the equation as follows:ln(1.3158) = t ln(1.012)Dividing both sides by ln(1.012), we get:t = ln(1.3158) / ln(1.012)Using a calculator to evaluate the right side of the equation, we get:t ≈ 36.8Therefore, it will take about 36.8 years for the world's population to reach 10 billion at an annual growth rate of 1.2%.

In conclusion, It will take approximately 36.8 years for the world's population to reach 10 billion at an annual growth rate of 1.2%. The calculation was done using the formula P(t) = P0 × (1 + r)^t, where P0 is the initial population, r is the annual growth rate, t is the time (in years), and P(t) is the population after t years.

To know more about logarithms visit -

brainly.com/question/30226560

#SPJ11

Answer:

28

Step-by-step explanation:

In paralellograms, the lengths of the parallel sides are equal to each other

As seen in the figure, the side that is parallel to the side that is represented with x has a length of 28 units, so the value of x is also equal to 28

Answer:

x = 28 units

Explanation:

Properties of a parallelogram:

-------------------------------------------------------

As said above, opposite sides in a parallelogram are equal. Thus, the value of x must be 28 units, as the measure of the opposite side of "x" is 28 units.

Learn more about parallelograms: https://brainly.com/question/27537537

Answer:

so the answer is 16? I dont know , need a better explanation on the question. ill answer until then.

Step-by-step explanation:

Answer:

56

Step-by-step explanation:

the answer might be 56

The difference between values is gotten by subtracting the values

The dimension of the frame that will surround the picture is 10 inches by 0 inches

The given parameters are:

The dimension of the frame is the difference between the dimension of the fancy, and the picture.

So, we have:

Length = 25 inches - 15 inches

Length = 10 inches

Width = 10 inches - 10 inches

Width = 0 inches

Hence, the dimension of the frame that will surround the picture is 10 inches by 0 inches

Read more about differences at:

https://brainly.com/question/2475734