Help me pleseeeeeee asappppp

Answer:

x is 7

Step-by-step explanation:

3x - 5(y + x)^2 = 16

3x - 16 = 5(y + x)^2

(y + x)^2 = 1/5(3x - 16) ------ eqn(I)

4x + 2(y + x)^2 = 30

2(y + x)^2 = 30 - 4x

(y + x)^2 = 1/2(30 - 4x) ------- eqn(II)

Equate eqn (I) & (II)

1/5(3x - 16) = 1/2(30 - 4x)

Multiply both sides by 10

2(3x - 16) = 5(30 - 4x)

6x - 32 = 150 - 20x

6x + 20x = 150 + 32

26x = 182

x = 182/26 = 7

Answer:

0.003

Step-by-step explanation:

P-value = The value of probability.

P value can be defined are the probability of a given test statistic ( which could be z score, t score, f score) that is can be less than, equal to or greater than a given null hypothesis.

In the above question, the test statistic we are given = z score.

z score = -2.73

To find the P- value, we can make use of a z table for normal distribution.

Hence, P(z = -2.73) = 0.0031667

Approximately to the nearest thousandth = 0.003

Answer:

No, All quadrilateral don't have all right angles.

▶A square, rectangle have all right angle but a parallelogram don't have all right angle

Hope you understand it✔

Answer:

No all quadrilateral doesnot have all right angle

The quadrilateral that have all angles of 90 degree

The quadrilateral that doesnot have all angles

of 90 degree

Hope it helps u mate

Answer:

          N - 2 r t²

x =  -   ------------

                7x

Step-by-step explanation:

N = 2 r t² - 7 r x

solve for x

N = 2 r t² - 7 r x

N + (-2 r t²) = (2 r t²  - 7 r x) + (-2 r t²)

N - 2 r t² = 2 r t² - 7 r x - 2 r t²

N - 2 r t²  - 2 r t² +  2 r t² = - 7 r x

N - 2 r t² = 7 r x

therefore,

          N - 2 r t²

x =  -   ------------

                7x

Answer:

.o55555555555555555555555

Step-by-step explanation:

Answer:

a.) because one month isn't very long

Step-by-step explanation:

Answer:

h = 10 m

Step-by-step explanation:

Area of a triangle = 1/2 * base * height

Area = 100 m²

base = 20 m

therefore,

100 m² = 1/2 * 20 m * h

h = 100 / 10

h = 10 m

The height will be 10 m.

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.

Given that, the area of a triangle is 100 m² and base is 20 m.

The area of a triangle = 1/2xbasexheight

100 = 1/2x20xh

h = 100/10

h = 10

Hence, The height will be 10 m.

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Answer:

Inequality

Step-by-step explanation:

Answer:

The answer is attached as an image.

Step-by-step explanation:

- If we assume that the space is 100% of the population then:

88% have something and 12% have nothing.

So within the 88% there are 10% who have TV, 20% who have Radio and 58% who have both TV and Radio.

This question is incomplete, the complete question;

A highway department executive claims that the number of fatal accidents which occur in her state does not vary from month to month. The results of a study of 193 fatal accidents were recorded. Is there enough evidence to reject the highway department executive's claim about the distribution of fatal accidents between each month? Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Fatal Accidents 11 13 22 11 15 29 15 9 13 15 22 18

Step 10 of 10 : State the conclusion of the hypothesis test at the 0.1 level of significance.

Answer: H₀ : The distribution of fatal accidents between each month is same

Step-by-step explanation:

H₀ : The distribution of fatal accidents between each month is same

H₁ : The distribution of fatal accidents between each month is different

Let the los be alpha 0.10

given data ;

       Observed    Expected  

Mon   Freq (Oi)   Freq Ei       (Oi-Ei)^2 /Ei

Jan      11    16.0833        1.606649

Feb      13    16.0833        0.591105

Mar      22    16.0833        2.176598

Apr       11    16.0833        1.606649

May     15    16.0833        0.072971

Jun     29    16.0833        10.373489

Jul     15    16.0833        0.072971

Aug       9    16.0833        3.119603

Sep      13    16.0833        0.591105

Oct      15    16.0833        0.072971

Nov      22    16.0833        2.176598

Dec      18    16.0833       0.228411

Total:   193     93                22.689119

Expected Freq ⇒ 193 / 12 = 16.08333

Test Statistic, x² : 22.6891

Num Categories: 12

Degrees of freedom: 12 - 1 = 11

Critical value X² : 24.725

P-Value: 0.0195

since Chi-square value < Chi-square critical value

and P-value > alpha 0.01 so we accept H₀

Therefore we conclude that the distribution of fatal accidents between each month is same

Answer:

[tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Suppose the number is X  given that one half is a third of my number which is X.

[tex]\frac{1}{2}[/tex] = [tex]\frac{x}{3}[/tex]

multiply by 3 both sides

[tex]\frac{x}{3}[/tex] x 3 = 3 x [tex]\frac{1}{2}[/tex]

X= [tex]\frac{3}{2}[/tex]

8/9 - 1/3

To subtract these two fractions, first find a common denominator.

The common denominator will be the

least common multiple for the two denominators.

In this case, the least common multiple of 9 and 3 is 9.

So to subtract, a denominator of 9 is needed in each fraction.

8/9 already has 9 in the denominator so it stays the same.

To get a 9 in the denominator of 1/3, multiply top and bottom by 3.

This gives us 3/9.

So we have 8/9 - 3/9 which is 5/9.

Answer:

Five-ninths

Step-by-step explanation:

Since the denominators are different (9 and 3) we need to change one of them.

9 is divisible by 3 therefor we do not need to change Eight-ninths.

3 times 3 = 9, nine becomes the new denominator, but remember, whatever we do to the bottom (denominator), we must also do to the top (numerator).

1 times 3 = 3

Now the equation is 8/9 - 3/9, we must only subtract the numerators. The answer is 5/9.

Answer:

I made it to this and I don't know what to do for the rest sorry.

Step-by-step explanation:

y-5=-2(x-6)

+5      +5

y=3(x-6)

y=3x-18

Answer:

[see below]

Step-by-step explanation:

Find two points that would satisfy the equation.

When x = 1:

[tex]y=3(1)\\\\y=3[/tex]

One point would be (1, 3).

When x = 2:

[tex]y=3(2)\\\\y=6[/tex]

Another point would be (2, 6).

Graph the points (1,3) and (2,6) and draw a line crossing through them.  

Hope this helps.

Answer: 1) 6 2) 6 3) 9

Step-by-step explanation:

4x=24 can be solved by dividing both sides by 4, which would isolate x. 4x divided by 4 is x, and 24 divided by 4 is 6. you are left with x = 6. the answer for 1) is 6.

3x = 18 can be solved similarly by dividing both sides by 3. you are left with x = 6.

9x = 81 is also solved similarly by dividing both sides by 9. 81 divided by 9 is 9, so x = 9.

Answer:

Volume of Beads = 84 mm³

Step-by-step explanation:

Given:

Side of base = 6 mm

Height = 7 mm

Find:

Volume of Beads

Computation:

Volume of Beads = Volume of a square pyramid

Volume of Beads = [1/3][Area of base][h]

Volume of Beads = [1/3][6 x 6][7]

Volume of Beads = 84 mm³

Answer:

14+22i

Step-by-step explanation:

We multiply and simplify (3-5i)(-2+4i)​ to get:

14 + 22i

A complex number is a number of the form a + bi, where a and b are real numbers, and i is an imaginary unit satisfying i² = -1. For example, 2 + 3i is a complex number.

Complex numbers can be multiplied using the following rules:

(a + bi)(c + di) = (ac - bd) + (ad + bc)i

Thus, the two complex numbers can be multiplied and simplified as follow:

(3-5i)(-2+4i)​ = 3(-2+4i)​ -5i(-2+4i)​

                    = 3(-2) + 3(4i) -5i(-2) -5i(4i)

                    = -6 + 12i + 10i -20i²

                   = -6 + 22i + 20    (Note: i² = -1)

                   = -6 + 20 + 22i

                   = 14 + 22i

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Answer:

if you can provide the figure it would be quite easy for the people giving answers

Answer:

Michaela = h

Michaela's sister = 3h

Answer = 3h

If Michaela has h hair ties and Michaela's sister has triple number of hair ties then the expression which shows the number of hair ties that Michaela's sister has is 3h.

Expression is a combination of number, symbols, variables, coefficients, indeterminants, functions, etc. It is usually not present in equal to form.

We have been given that Michaela has h number of hair ties and Michaela's sister has triple the number of hair ties that Michaela has, so if h is the expression for Michaela then 3h will be the expression for Michaela's sister.

Hence the expression which shows the number of hair ties that Michaela's sister has is 3h.

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Answer:

hello your question is incomplete below is the complete question

Case-Control Calculation Enter only numeric values into the answer line. Place a leading 0 before the decimal and remember to round to two decimal places. Note your answers for the next short essay question. Swine Influenza (SI) is a growing concern at the local Broncoville Health Department in Lawrence, Kansas. You are working for a pharmaceutical company which is developing a human vaccine against SI. You are in charge of testing the vaccine’s effectiveness. You need to determine if one or two doses of vaccine is required to provide immunity. You field test and collect the following information about the vaccine status of persons who did and did not contract SI after getting either one or two doses of vaccine. Develop a 2 x 2 table with the following information: Of the 727 cases of SI, 203 received two doses of vaccine. Of 1,239 controls, 771 received two doses of vaccine for SI. What is the likelihood of contracting SI with only one dose of vaccine?

1. Calculate the incidence of persons with one dose of vaccine for SI

2. Calculate the incidence of persons with two doses of vaccine for SI

3. Calculate the odds ratio of developing SI among those with one dose of vaccine for SI

answer : 1) ≈ 0.53 , (2)  ≈ 0.21,  (3)  ≈ 1.12

Step-by-step explanation:

cases of SI = 727

number of SI cases that received two doses of vaccine = 203

number of SI cases that received one dose of vaccine = 727 -203 = 524

controls = 1239

number of controls that received two doses of vaccine = 771

number of controls that received one dose of vaccine = 1239 - 771 = 468

I) The incidence of persons with one dose of vaccine for SI

= 524 / 992 = 0.528 ≈ 0.53

2) The incidence of persons with two doses of vaccine for SI = 203/974 = 0.208 ≈ 0.21

3) The Odds of SI in one dose group

=  524/468 = 1.119 ≈ 1.12

Answer:

-9, -6, and -2

Step-by-step explanation:

Simply evaluate the function at the extremes of the domain to find the range of elements that are solutions to f(x).

f(-1) = (1/2) - 10 = -9.5

f(3) = 8 - 10 = -2

Notice -9, -6, and -2 fall into those ranges. To verify integer solutions, simply plug in the remaining integers 0, 1, and 2.

f(0) = 1 - 10 = -9

f(1) = 2 - 10 = -8

f(2) = 4 - 10 = -6

Cheers.

Answer:

B. II only

Step-by-step explanation:

Immunisation is used to lower the risk factor that may arise due to change in interest rate . For it, cash inflow and cash outflow are matched in terms of their timing . In other words, effective duration of asset and liability are matched with the help of methods like cash flow matching , duration matching etc.

Even lowering of interest  rate in long term may entail risk because it may increase the bond price which may affect the business adversely in some way if bond is kept as liability . It may reduce the price of asset if it is held as asset .

Exact matching is possible only when matching of cash flow is achieved along with its timing . Matching of present value will not serve the purpose .

Macaulay or modified duration can be used to develop an immunization strategy . Both of them calculate the duration of asset and liability with some change in the method of calculation.

Answer:

segment AD

Step-by-step explanation:

LOD is the far side of the cube.

ABC is the left side.

So the intersection is the vertical EDGE AD, on the far-left.

The two planes ABC and LOD intersect each other at the segment AD.

A Cartesian coordinate system in a plane is a system of coordinates that uniquely identifies each point by a pair of numerical coordinates. These numerical coordinates are the signed distances from two fixed perpendicular oriented lines to the point, measured in the same unit of length.

Given that there is a cube made of six sides. The two planes ABC and LOD intersect each other at the line segment AD or AD is the common line between the two planes. LOD is the far side of the cube. ABC is on the left side. So the intersection is the vertical EDGE AD, on the far left.

Therefore, the two planes ABC and LOD intersect each other at the segment AD.

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Hello, we know that

[tex]|x|=\begin{cases}x &\text{if } x \geq 0\\ -x &\text{if } x < 0 \end{cases}[/tex]

And we can write that 12x-5=0 <=> 12x =5 <=> x = 5/12

So,

[tex]|12x-5|=\begin{cases}12x-5 &\text{if } x \geq \dfrac{5}{12}\\\\ -12x+5 &\text{if } x < \dfrac{5}{12}\end{cases}[/tex]

And, we can write.

[tex]|12x-5|=11<=>\begin{cases}12x-5=11 &\text{if } x \geq \dfrac{5}{12}\\\\ -12x+5=11 &\text{if } x < \dfrac{5}{12}\end{cases}\\ \\ \\ <=>\begin{cases}12x=16 &\text{if } x \geq \dfrac{5}{12}\\\\ 12x=5-11 &\text{if } x < \dfrac{5}{12}\end{cases}\\\\<=>\begin{cases}x=\dfrac{16}{12}=\boxed{\dfrac{4}{3}} &\text{if } x \geq \dfrac{5}{12}\\\\ x=\dfrac{-6}{12}=\boxed{-\dfrac{1}{2}} &\text{if } x < \dfrac{5}{12}\end{cases}[/tex]

So the two solutions are 4/3 and -1/2.

Thank you.

Answer:

to be honest I'm not sure

When multiplying similar numbers raised to different exponents the exponents get added together.

The answer is : Suzy because when you multiply the exponents, you are finding the sum of the exponents.

Answer: 96x-70

Step-by-step explanation: -10+90x+6x-60

                                             =96x-70

Answer:

96x  -70

Step-by-step explanation:

-10(1 - 9x) + 6(x - 10)

Distribute

-10 +90x +6x - 60

Combine like terms

90x+6x - 10-60

96x  -70

Answer:

40%

Step-by-step explanation:

Total students = 25

Boys = 15

Girls = 25 - 15 = 10

Percent of girls = 10/25

Percent is out of 100.

=> 10/25 = x/100

=> Cross multiply

=> 25 * x = 100 * 10

=> 25x = 1000

=> 25x/25 = 1000/25

=> x = 40

So, 40% are girls