I need help on number 7 I don’t understand it

Answer:

What do you mean why are you tripping out.

Step-by-step explanation:

we know angles A and B are supplementary, thus their sum is 180°.

[tex]\stackrel{\measuredangle A}{(2x+26)}~~ + ~~\stackrel{\measuredangle B}{(x+25)}~~ = ~~180\implies 3x+51=180\implies 3x=129\\\\\\x=\cfrac{129}{3}\implies x=43~\hspace{10em}\stackrel{\measuredangle B = 43 + 25}{68}[/tex]

The measure of angle m∠B = 112°

The supplementary angles are defined as when pairing of angles addition to 180° then they are called supplementary angles. There are two types of supplementary angles.

Supplementary angles have a sum of 180°

Therefore, we can add the expressions for Angles A and B and set their sum equal to 180.

( 2x+26 ) + ( x+25 ) = 180

Now we can combine like terms and apply the operations to find the value of x:

⇒ ( 2x+26 ) + ( x+25 ) = 180

⇒ 3x + 51 = 180

⇒ 3x  = 180 - 51

⇒ 3x  = 129

⇒ x = 129/3

⇒ x = 43

Then Angle B will have a measure of x+25 = 43 + 25 = 68°

m∠ B = 112°

The measure of Angle A will be :2x+26  = 2(43) + 26 = 112°

m∠A = 68°

Thus, the measure of angle m∠B = 112°

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Answer:

Step-by-step explanation:

Two sides of the rectangle differ by 3.5 cm means that one side is 3.5 cm more than the other side.

If width = x cm, then length = x + 3.5

Perimeter = 67 m

2*(length +width) = 67

2*(x + 3.5 + x) = 67

2*(2x + 3.5)  = 67

2*2x + 2*3.5 = 67

4x  + 7   = 67

       4x = 67 - 7

       4x = 60

         x = 60/4

x = 15 cm

Width = 15 cm

Length = 15 + 3.5

           = 18.5 cm

Answer:

Since we know that each of the three triplets are the same age we can put next to n, 3.

And given that another child is 14 years old we can put that next to the "+" sign.

In total, it would equal 32, so put the 32 after the equal sign.

It should look like this:

3n + 14 = 32

But now they want us to solve for the triplet's ages, so we just solve for n;

3n + 14 = 32

-14          -14

3n = 18

/3     /3

n = 6, the triplet's ages are 6 years old each.

Answer:

that is the correct answer

Answer:

12

Step-by-step explanation:

3 person, devide total budget by 5, each person's share would be £12

Answer:

A) negative strong correlation B ) negative weak correlation C) no relationship

Step-by-step explanation:

draw a line if these points gather around a line there is a relationship . since the slope will be negative by drawing a straight . Line in the A and B graphs , we according to the will see if it is week and strong according point distribution that will have a negative correlation .C for ) dots scattered no relationship

Answer:

1 is the answer. Have a great day!!!

Answer:

1

Step-by-step explanation:

You can only split it diagonally without unevenly splitting it.

Answer:

81

Step-by-step explanation:

as x+y is 180

- x-y is 18

2x is 198

x is 99

180-99 is 81

The margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

The margin of error can be defined as the amount of random sampling error in the results of a survey. It is given by the formula,

[tex]\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\frac{\sigma^{2}}{n}}[/tex]

[tex]\text{MOE}[/tex] = margin of error

[tex]\gamma[/tex] = confidence level

[tex]z_{\gamma}[/tex] = quantile

σ = standard deviation

n = sample size

As it is given that the sample size of the survey is 324, while the standard deviation of the survey is 1.6.

We know that the value of the z for 95% confidence interval is 1.96. Therefore, using the formula of the standard of error we can write it as,

[tex]\text{MOE}_{\gamma}=z_{\gamma} \times \sqrt{\dfrac{\sigma^{2}}{n}}\\\\\text{MOE}_{\gamma}=1.96 \times \sqrt{\dfrac{1.6^{2}}{324}}\\\\\text{MOE}_{\gamma}=0.1742[/tex]

Hence, the margin of error for 324 adults surveyed with 1.6 standard deviations is 0.1742.

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Answer:

96%

Step-by-step explanation:

he rigth equation to anticipate the profit after t years is p(t) = 10,000 (1.075)^t

So, given that both

store A and store B follow the same equations but t is different for them, you can right: Store A: pA (t)  10,000 (1.075)^t

Store B: pB(t'): 10,000 (1.075)^t'

=> pA(t) / pB(t') = 1.075^t / 1.075^t'

=> pA(t) / pB(t') = 1.075 ^ (t - t')

And t - t' = 0.5 years

=> pA(t) / pB(t') = 1.075 ^ (0.5) = 1.0368

or pB(t') / pA(t) = 1.075^(-0.5) = 0.964

=> pB(t') ≈ 0.96 * pA(t)

This means that the profit of store B is about 96%of  the profit of store A at any time after both stores have opened.

Check the picture below.

Add black and white together:

3/6 + 2/6 = 5/6

Answer: 5/6

Answer: 113.04 ft

Step-by-step explanation:

C = 2πrC = 2x18x3.14

C=113.04

Answer:

The circumference is 26.38 yards

Step-by-step explanation:

The formula for finding the circumference of a circle is 2π(r). 2 times pi times the radius. We see that the radius is 4.2 yards, so we plug 4.2 into the variable labeled "r"

2 (3.14) (4.2) = 26.376

26.376 rounded to the hundredths place is 26.38

Hola there !

Answer is in attachment ; let me know if you have any doubts

The value of the quotient of 360 divided by 9 is 40.

One type of operation in mathematics is division. We divide the phrases or numbers into the same number of components during this operation.

Given:

A phrase: 360 divided by 9.

To find the quotient:

360 divided by 9;

360 ÷ 9,

Here,

The factors of 360 = 2 x 3 x 3 x 3 x 3 x 5

And the factors of 9 = 3 x 3.

The GCF of 360 and 9 is 9.

So, the quotient will be a whole number.

360/9

= 40

Therefore, the value of the quotient is 40.

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Answer:

7 and 9

Step-by-step explanation:

both 7 and 9 occur 3 times in this sequence of numerals, thus resulting in a bimodal solution

Answer:

B. 1 1/2

Step-by-step explanation:

Pls, choose me as brainliest!

Explanation:

Divide the horizontal sides to get

image/preimage = B'C'/BC = 15/10 = 1.5 = 1 & 1/2

This says that the larger image's side lengths are 1.5 = 1 & 1/2 times that of the corresponding preimage side lengths.

Answer:

two situations in which a person or business might use probability to make a decision

1.  Weather Forecasting

2.  Sales Forecasting

explanation

Weather Forecasting : the individual might question themselves about what the weather is gonna look like the day . is it gonna rain ? should I bring an umbrella ? should i take the car to work just incase it starts raining , or should I walk on foot and enjoy the hot sun?

Many retailers use probability to forecast the possibility of selling a specific amount of products on a given day, week, or month. This allows companies to forecast how much stock they will require in the future. A company, for example, may use a forecast model that claims it has a 90% chance of selling at least 100 items on a given day. To avoid running out of items to sell, keep at least 100 (preferably more) on hand at all times.

Step-by-step explanation:

d. the light become bri--

Answer:

a i think hope i help

Step-by-step explanation:

Answer:

When the selling price and the cost price of a product is given, the profit can be calculated using the formula, Profit = Selling Price - Cost Price. After this, the profit percentage formula that is used is, Profit percentage = (Profit/Cost Price) × 100.

Step-by-step explanation:

Pls, choose me as brainliest!

The difference between the volumes is 79.55 cubic inches.

The volume of a sphere of radius R is:

[tex]V = (4/3)*3.14*R^3[/tex]

Here we have two spheres, the larger has a diameter of 6 inches, so its radius is:

R = 6in/2 = 3in

The smaller ball has a radius of 2 in.

Then the difference between the volumes is:

[tex]V = (4/3)*3.14*( (3in)^3 - (2in)^3) = 79.55 in^3[/tex]

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Answer:

n= -6, a= 5

Step-by-step explanation:

Label the two equations:

a= -2n -7 -----(1)

-3a +n= -21 -----(2)

Substitute (1) into (2):

-3(-2n -7) +n= -21

Expand:

-3(-2n) -3(-7) +n= -21

6n +21 +n= -21

Simplify, minus 21 on both sides:

7n= -21 -21

7n= -42

Divide both sides by 7:

n= -42 ÷7

n= -6

Substitute n= -6 into (1):

a= -2(-6) -7

a= 12 -7

a= 5

Answer:

5

Step-by-step explanation:

like i dont know probably 5 its kinda weird. it definitely has to be 5

The given equation have infinitely solution.

we have given that equation 4x=4x

Zero solution:-No solution would mean that there is no answer to the equation

One solution:-There is only one value for the variable that makes the equation true.

Two solution:-A quadratic equation with real or complex coefficients has two solutions, called roots. These two solutions may or may not be distinct, and they may or may not be real.

infinitely solution:- Infinite solutions would mean that any value for the variable would make the equation true.(x=x)

Given equation have infinitely many solution because there are so many different ways that can be found.

Therefore we have the given equation have infinitely solution

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Answer:

30°

Step-by-step explanation:

y+30° +4y =180° (angles on a straight line equal 180°)

5y+30° =180°

5y= 180° - 30°

5y = 150°

divide both sides by 5

5y/5 = 150/5

y= 30°

Answer:

18 Answer

Step-by-step explanation:

.: PQ +RQ

= 7+11

= 18

Answer:

a

Step-by-step explanation:

Let's go through each answer choice.

The formula for Area of a rectangle is [tex]A=l*w[/tex]

a.

[tex]A=l*w=19*20=380\ ft^2[/tex]

b.

[tex]A=l*w=17*22=374\ ft^2[/tex]

c.

[tex]A=l*w=21*18=378\ ft^2[/tex]

d.

[tex]A=l*w=23*16=368\ ft^2[/tex]

Upon evaluation of each answer choice, we can conclude:

[tex]380 > 378 > 374 > 368[/tex]

Therefore the answer is a.