can someone please help me with this question "when trying to find my heart rate, i counted 25 beats in 20 seconds. How many beats would that be per minute? please explain." ​

Answer:

- 190

Step-by-step explanation:

Since the sum of 84 number series is -7980. We have to find the sum of first and last numbers. Since sum of an arithmetic sequence is represented as. S =. (First + last) =. So the total of first and last term is (-190). Option B. -190 is the correct option.

Answer:

B) -190

Step-by-step explanation:

Trust

Answer:

The length of the corresponding base is 6 ft.

Step-by-step explanation:

A = bh            Use this equation to find the length of the base

12 = 2b           Divide both sides by 2 to get b by itself

6 = b

If this answer is correct, please make me Brainliest!

Answer:

6

Step-by-step explanation:

did lesson

Answer:

Possible monomials: 3x² and 3xy

Step-by-step explanation:

We are asked to find a monomial of the 2nd degree with a leading coefficient of 3.

A monomial is a polynomial with only one term. This monomial has to be of 2nd degree, that is, if only one variable is present, the exponent of it is 2, like in x² or y²; but if two variables are present, the exponent of each one is one, so that, the degree is still two, like in xy (degree = 1 + 1 = 2)

In a monomial there is only one coefficient, the leading coefficient, which is the multiplicative factor of the variables. Then, with one variable, the monomial is 3x², and with two, it is 3xy

Answer:

3n^2 is the answer

Step-by-step explanation:

Khan academy lol

Answer:

Step-by-step explanation:

Set the Format menu to ExprOn and CoordOn. Press [2nd][TRACE] to access the Calculate menu. Press [2] to select the zero option. If necessary, repeatedly press Set the Left Bound for the zero you desire to find.

Answer:

6x^8 + x^6 + 4x^4 + 0x^2 - 3

Step-by-step explanation:

Rewrite this in descending order by powers of x:

6x^8 + x^6 + 4x^4 + 0x^2 - 3x^0

or

6x^8 + x^6 + 4x^4 + 0x^2 - 3

Answer:

15! = 15*14*13*12*11*10*9*8*7*6*5*4*3*2*1

Step-by-step explanation:

It will be 15! = 15*14*13*12*11*10*9*8*7*6*5*4*3*2*1

Because the first vocab has 15 definitions to match

the second then be left with 14 definitions ( cause the first one match with 1 def already

the third has 13 definition

so on ...

hope this help

Answer:

15! ways

Step-by-step explanation:

15! =1.307 × 10¹²

For the first word, he has 15 options

For the second word, 14 options

.

.

.

For the last word, 1 option

Total possibilities:

15 × 14 × 13 × 12 × ...... × 1 = 15!

Answer:

The ribbon is 28.4 meters

Step-by-step explanation:

Given the box is 5m high, 6m long, and 8m wide,

we have a right angled triangle with hypotenuse = unknown, x, say

Opposite = 5m and 8m

Then, by Pythagoras theorem

x² = 5² + 8²

x² = 25 + 64

x² = 89

x = √89 ≈ 9.4m

The ribbon is now (5 + 6 + 8 + 9.4)m = 28.4m

Answer:

B  4i sqrt(2)

Step-by-step explanation:

sqrt(-2) = sqrt(-1) * sqrt(2) = i sqrt(2)

sqrt(-18) = sqrt(-1) sqrt(2) sqrt(9) = 3i sqrt(2)

Add them together

i sqrt(2) + 3i sqrt(2)

4i sqrt(2)

Answer:

B.) [tex]4\sqrt{2}i[/tex]

Step-by-step explanation:

Simplify both radicals from negative form (the square root of -1 is i ):

[tex]\sqrt{-1*2} +\sqrt{-1*18} \\\\\sqrt{2}i+\sqrt{18}i[/tex]

Simplify [tex]\sqrt{18}[/tex] :

[tex]\sqrt{9*2}\\\\\sqrt{9}*\sqrt{2}\\\\ 3\sqrt{2}i[/tex]

Add:

[tex]1\sqrt{2}i+3\sqrt{2}i\\\\4\sqrt{2}i[/tex]

:Done

Answer:

hope this help

Step-by-step explanation:

10x + 4 = 10x + 16 -12 = 10x + 4

infinite solution of x ( for x is real number)

Answer:

98.4

Step-by-step explanation:

Since one cake equals 8.2 g of sugar, we can multiply this by 12 to get 12 cakes equals 98.4 g of sugar

Answer:

98.4 Grams because 8.2 times 12 is 98.4

Step-by-step explanation:

Plz give brainliest

Answer:

After simplifying, our answer is 10

Step-by-step explanation:

20-31 gives the distance between 20 and 30

Now, for -5 and -15

The similar expression to write will be -5-(-15)

Simplifying this, we have;

That would be -5+15 = 10

Answer:

perimeter = 107.4 m

area =  640.82 m²

Step-by-step explanation:

The line connecting the the centers of the adjacent sides of the garden is 20 m long. The line is a diagonal that forms an hypotenuse sides of a triangle.

The length of side of the rectangle has a ratio of 1 : 2. This means one side has a length a meters and the other 2a meters.

Pythagoras theorem can be use to get a since a right angle is formed due to the diagonal.

(a/2)² + (2a/2)² = 20²

(a/2)² + (a)² = 20²

a²/4 + a² = 400

(a² + 4a²)/4 = 400

5a²/4 = 400

cross multiply

5a² = 1600

a² = 1600/5

a² = 320

square root both sides

a = √320

a = 17.88854382

a ≈ 17.90  

The required length is a = 17.90 m and the other side will be 17.90 × 2 = 35.80 m.

Area = length × breadth

area = 17.90 × 35.80 = 640.82 m²

perimeter = 2(l + b)

perimeter = 2(35.80 + 17.90)

perimeter = 2(53.7)

perimeter = 107.4 m

Answer:

The answer is 9.

Step-by-step explanation:

Caleb's cube has a volume of 27 inches cubed.

27 x 27 = 729

729 has a cube root of 9.

Answer:

See the explanation below.

Step-by-step explanation:

n = sample size = 1000

X = proportion of adults that a will = 450 / 1,000 = 0.45

P-value = 0.5

a = level of significance = 5%, or 0.05

A. At the 5% significance level, can you conclude that the percentage of people who have a will is less than 50%?

Our hypotheses are:

Null hypothesis: u ≥ 0.5

Alternate hypothesis: u < 0.5

Since this indicates a left tailed test, the decision rule is to reject null hypothesis if p-value is less than the level of significance.

[tex]Z = test statistic = \frac{0.45 - 0.5}{0.5/\sqrt{1,000} }[/tex]

Z =  - 0.05 / 0.0158113883008419 = - 3.1623

Using the excel function NORMSDIST(-3.1623), we have:

P- value = 0.000782701129001276, approximately 0.0008

Therefore, null hypothesis is rejected at 5% level of significance since the p-value 0.0008 is less than 5%, or 0.05.

Therefore, there is an enough reason to reject null hypothesis.

B. What is the Type I error in part A? What is the probability of making this error?

Since the probability is greater than 50%, the Type I error is therefore the statement in the question that less than 50% of adults have a will.

Also, the probability of making this Type I error is the 5% level of significance.

C. What would your decision be in part A if the probability of making a Type I error were zero?

The null hypothesis will be rejected if the probability of making a Type I error were zero in part A.

Answer:

20cm

Step-by-step explanation:

pythagorean theorem

15^2 + b^2 = 25^2

225 + b^2 = 625

b^2 = 400

b = 20

Answer:

20 cm

Step-by-step explanation:

This is a right triangle so we can use the Pythagorean theorem

a^2 +b^2 = c^2

where a and b are the legs and c is the hypotenuse

15^2 +b^2 = 25^2

225+b^2 = 625

Subtract 225 from each side

225+b^2 -225 = 625-225

b^2 = 400

Take the square root of each side

sqrt(b^2) = sqrt(400)

b = 20

Answer:

The owner of the supermarket had 9207  at first

Step-by-step explanation:

The key to unlocking this question is to first of all determine how much the supermarket owner paid to employees:

amount paid as weekly wages=number of employees*pay per employee

there are 28 employees

the pay per week is 320 each

amount paid as weekly wages=28*320=8960

The amount the owner of the supermarket had at first is the amount paid as weekly wages plus the balance left after the wages have been settled.

balance after payment of wages is 247

Amount he had at first=8960+247=9207

Answer:

54 combinations.

Explanation:

3x3x2x3= 54

Answer:

Volume, [tex]V=169.56\ \text{units}^3[/tex]

Step-by-step explanation:

We have,

Radius of cylinder is 3 units

Height of the cylinder is 6 units

It is assumed to find the volume of the cylinder. The formula of the volume of cylinder is given by :

[tex]V=\pi r^2 h \\\\V=3.14\times 3^2 \times 6\\\\V=169.56\ \text{units}^3[/tex]

So, the volume of the cylinder is [tex]169.56\ \text{units}^3[/tex].

Answer:

Step-by-step explanation:

x three point shots: 8*3=24

x two point shots: 2*2=4

The point would Anthony score is : 24+4=28

I hope it'll help you much

Thank you for asking

Answer:

6^8

Step-by-step explanation:

so whenever there is an exponent outside of a parentheses, multiply it with the exponent inside the parentheses:

so (6^4)^2= 6^8

Hope this helps!

Answer:

well the answer is 1679616

Step-by-step explanation:

how you search it up is (6^4)^2 and how you do it is times 6 by 6 by 6 by 6 then whatever that comes out to (1296) you would multiply that twice (1296 times 1296) and that'd be your answer ( 1679616)

Complete Question:

Samuel received $250 as prize money for winning the St. Peterson High School Badminton Tournament. The money was deposited in a special scholarship account that offered an annual interest of 1.8% compounded semiannually. The amount he will have in the account after t years can be calculated using the expression below.

250(1+0.018/2)^2t

Use the given expression to complete the statements below.

The expression is the *blank* of the amount initially deposited and the *blank* of one and the rate of increase raised to the number of *blank*

1st Blank:

Product

Sum

Quotient

Square

2nd Blank:

Quotient

Product

Difference

Sum

3rd Blank:

Compounding Periods

Years

Months

Answer:

First blank: product

Second blank : Sum

Third blank : years

Step-by-step explanation:

The expression :

250(1+0.018/2)^2t

The expression is the *blank* of the amount initially deposited and the *blank* of one and the rate of increase raised to the number of *blank*

The first blank represents product which adopts the use of the bracket () symbol

The second blank is the sum of one and the rate of increase depicted with the addition '+' sign

The third blank represents years which is the period of time in years for which the money was kept in the scholarship account

Answer:

B

Step-by-step explanation:

Answer:

1) distributive property.

Step-by-step explanation:

Becca used the distributive property, in that she distributed (multiplied) 4 to all terms within the parenthesis:

4(x + 2) = 4x + 8

~

Answer:

1. Distributive

Step-by-step explanation:

Becca used the Distributive Property. You can tell because she multiplied (x + 2) by 4, which is distributing the 4.

Answer:

1 an -5/2

Step-by-step explanation:

Answer:

32.94%

Step-by-step explanation:

Hope this helps

Answer: x = 33

Step-by-step explanation:

Subtract 2/11x from both sides

Subtract 4 from both sides

Multiply both sides by 11/4

Answer:

The result is [tex]x = 33[/tex] .

Step-by-step explanation:

Solve the equation:

[tex]\frac{6}{11} x +4 = \frac{2}{11} x + 16[/tex]

-Subtract [tex]\frac{2}{11} x[/tex] from [tex]\frac{6}{11}x[/tex] :

[tex]\frac{6}{11} x +4 -\frac{2}{11}x = \frac{2}{11} x - \frac{2}{11}x + 16[/tex]

[tex]\frac{4}{11} x +4 = 16[/tex]

-Subtract from both sides by 4:

[tex]\frac{6}{11} x + 4 - 4 = 16 -4[/tex]

[tex]\frac{6}{11} x = 12[/tex]

-Multiply both sides by [tex]\frac{11}{4}[/tex] :

[tex]x = 12[/tex] × [tex](\frac{11}{4})[/tex]

[tex]x = 33[/tex]

So, the answer for the equation is [tex]x =33[/tex] .

Answer:

You just add the 2 equations together and fill in the 3 into the x where the f(x) equation is located and 7 into the x where the g(x) equation is located. I hope this helps. Have a great rest if your day!

The fire is a distance of 9.33 miles from Station A and 4.67 miles from Station B.

Let's denote the distance of the fire from station A as "x" and the distance of the fire from station B as "y".

From station A, the bearing of the fire is N 35° E. This means that if we draw a line connecting station A and the fire, the angle between this line and the north direction is 35°.

Similarly, from station B, the bearing of the fire is N 30° W. This means that the angle between the line connecting station B and the fire and the north direction is 30°.

Now, let's construct a triangle with vertices at Station A, station B, and the fire. The line connecting station A and station B represents the base of the triangle, and the lines connecting station A and the fire and station B and the fire represent the two sides of the triangle.

Since the triangle is isosceles (both sides are equal), the angles opposite the two sides will also be equal.

Let's denote the angle opposite side x as α and the angle opposite side y as β.

From the given bearings, we can determine the values of α and β:

α = 180° - 35° = 145°

β = 180° - 30° = 150°

Now, using the Law of Sines, we can set up the following ratios:

sin(α) / x = sin(β) / y

Solving for y, we get:

y = (sin(β) / sin(α)) * x

Substituting the known values, we have:

y = (sin(150°) / sin(145°)) * x

Using a calculator, we can evaluate the sin(150°) and sin(145°) to get:

y = (0.5 / 0.996) * x

y = 0.501 * x

Since the two stations are 14 miles apart, we know that x + y = 14.

Substituting the value of y from the previous equation, we have:

x + 0.501 * x = 14

1.501 * x = 14

x = 14 / 1.501

x ≈ 9.33

Now, to find the value of y, we can substitute the value of x into the equation:

y = 0.501 * x

y = 0.501 * 9.33

y ≈ 4.67

Therefore, the fire is 9.33 miles from Station A and 4.67 miles from Station B.

Learn more about the distance here:

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The fire is approximately 38.7 miles away from station A and 38.4 miles away from station B.

To solve this problem, we can use trigonometry and create a diagram to visualize the situation.

Now, let's label the diagram. We'll use the following labels:

A: Fire-lookout station A

B: Fire-lookout station B

F: Fire's location

Next, we need to determine the angles and distances involved. From the problem statement, we know the bearing of the fire from station A is N 35° E, and the bearing of the fire from station B is N 30° W. Let's mark these angles on the diagram.

To find the distance of the fire from each station, we can consider the angles formed between the stations and the fire. The sum of these angles should be 180° since we have a straight line. Let's find the missing angles by subtracting the given angles from 180°.

For station A:

Angle A = 180° - 35° = 145°

For station B:

Angle B = 180° - 30° = 150°

Now, let's draw lines from each station to the fire, and label the distances as dA and dB.

We can use trigonometry (specifically, the tangent function) to find the distances dA and dB. Tangent of an angle is equal to the opposite side divided by the adjacent side.

For station A:

tan(145°) = opposite side (dA) / adjacent side (14 miles)

dA = 14 * tan(145°)

For station B:

tan(150°) = opposite side (dB) / adjacent side (14 miles)

dB = 14 * tan(150°)

Now, let's calculate these distances using a calculator.

dA = 14 * tan(145°) ≈ 38.7 miles

dB = 14 * tan(150°) ≈ 38.4 miles

for such more question on angles

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