Help With this Math problem

Answer:

$ 1875

Step-by-step explanation:

Richard invests some amount P. He want the money he invested to gain an interest of $300.

A = P(1 + n×i)

A = P + 300

i = 0.08

n = 2

P + 300 = P(1 + 2×0.08)

P + 300 = P(1.16)

300 = 1.16P - P

300 = 0.16P

300/0.16 = 0.16P/0.16

P =300/0.16

P = $1875

Richard should invest $1875 if he wants an interest of $300 in 2 years.

Step-by-step explanation:

= 16 + 40 ÷ 4 + ( 13 - 9 ) 2

= 16 + 40 ÷ 4 + 4 × 2

= 16 + 10 + 4× 2

= 16+ 10 + 8

= 34

The patterns of tiles do not follow an arithmetic sequence or geometric sequence

When the pattern number is odd, the total number of tiles (SQUARE & CIRCULAR) needed to make the pattern will always be odd

From the question, we have the following pattern:

The number of square tiles is calculated using:

Tn= n²

So, we have:

T₇ = 7²

T₇ = 49

Hence, 49 square tiles are needed in pattern 7

The number of circular tiles is calculated using:

Tn= 4n + 4

So, we have:

T₂₀= 4 * 20 + 4

T₂₀= 84

Hence, 84 circular tiles are needed in pattern 20

Using the computations in (a) and (b), we have:

The total number of tiles in odd pattern number is always odd

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Using sampling concepts, it is found that the population of interest is given by:

All American teens who are between the ages of 13 and 17.

It is a common statistics practice, when we want to study something from a population, we find a sample of this population, which is a group containing elements of a population. A sample has to be representative of the population, that is, it has to involve all segments of the population.

I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents wheter they are Buffalo Bills fans, and expand this to the entire population of New York State residents.

In this problem, a sample of American teenagers aged 13 to 17 was taken, hence all American teenagers aged 13 to 17 is the population of interest.

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Answer:

(a) School B

you can compare the coverages of A grades for both schools

School A: 25

School B: 50

50 > 25, so school B

(b) School B

School A: 18

School B: 70

70 > 18, so also school B

(c). School B has a higher percentage of nearly all the grades than school A except for D grade.

I think answer is 4

Step-by-step explanation:

I think so the answer is 4 because the questoin is 2x <9 2 time x =the answer and 2 times 4 = 8 and it is smaller than 9 and if we will do the same with the other numbers it will be greter than 9

solution:

2 x < 9

x = 4

2 × 4 = 8

and it is smaller than 9

like this :

8 < 9

this is what I think other wise I am not sure thankyou

Answer:

Step-by-step explanation:

vertex :  (1,-3)

coordinates : (3,1)  and  (-1,1)

parabola formula : y = a(x -h)² + k

so given,

h = 1

k = -3

x = 3

y = 1

solve for a:

Therefore equation:

y = (x -1)² - 3

check the graph for confirmation:

Answer: Graph the parabola y=x2−7x+2 .

Compare the equation with y=ax2+bx+c to find the values of a , b , and c .

Here, a=1,b=−7 and c=2 .

Use the values of the coefficients to write the equation of axis of symmetry .

The graph of a quadratic equation in the form   y=ax2+bx+c has as its axis of symmetry the line x=−b2a . So, the equation of the axis of symmetry of the given parabola is x=−(−7)2(1) or x=72 .

Substitute x=72 in the equation to find the y -coordinate of the vertex.

y=(72)2−7(72)+2    =494−492+2    =49 − 98 + 84     =−414

Therefore, the coordinates of the vertex are (72,−414) .

Now, substitute a few more x -values in the equation to get the corresponding y -values.

x y=x2−7x+2

0 2

1 −4

2 −8

3 −10

5 −8

7 2

Plot the points and join them to get the parabola

in short terms D.

The voltage difference for an outlet will be 140 volts.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

For an outlet,

Current (I) = 10 ampere

Resistance (R) = 14 ohms

Now,

Since, We know that;

The current is the ratio of the potential difference and resistance.

That is,

⇒ I = V / R

⇒ V = I R

Thus, Substitute all the values, we get;

⇒ V = I R

⇒ V = 10 x 14

⇒ V = 140 Volts

Therefore, The voltage difference for an outlet will be 140 volts.

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Answer:

1 and 3

Step-by-step explanation:

Answer:

A = 16.5 cm²

Step-by-step explanation:

the area (A) of a trapezoid is calculated as

A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )

where h is the perpendicular height between bases and b₁, b₂ the bases

here h = 3, b₁ = 7 , b₂ = 4 , then

A = [tex]\frac{1}{2}[/tex] × 3 × (7 + 4) = 1.5 × 11 = 16.5 cm²

Answer:

I believe it is B

Step-by-step explanation:

it has somewhat some thing to do with the lines at BC it's had to put in words

The postulate or theorem can be used to prove that ΔABC ≅ ΔDCB is ASA.

The correct option is A.

Congruency is a concept in geometry that refers to the equality of shape and size between two or more geometric figures. When two figures are congruent, it means that they have exactly the same shape and size, and their corresponding sides and angles are equal.

In ΔABC and ΔDCB

<BAC= <BDC (given)

<BCA= <DBC(given)

CB = CB (common)

So, by ASA criteria ΔABC ≅ ΔDCB.

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Answer:

The last option 8.5

Step-by-step explanation:

hope it helps

Answer:

1/4 cup

Step-by-step explanation:

9/4 / 9 =

9/4 *1/9 the nines cancel out to leave

1/4

f(x)=x²

Hence.

Answer:

welp hopefully its right

Step-by-step explanation:

-1.5

15

- 10

-3

2

The value of x would be 1.

Answer: D

Step-by-step explanation: Add the two numbers

Using the Empirical Rule, it is found that 95 students reported readings between 79 g and 85 g.

It states that, for a normally distributed random variable:

In this problem, considering that the mean is of 82g and the standard deviation is of 3g, readings between 79g and 85g are within one standard deviation of the mean, hence it will compreend 68% of the 140 readings, so the number of students is given by:

0.68 x 140 = 95.

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Answer:

108

Step-by-step explanation:

Okay here we see a diameter of 6 which is a line that shows the width of the whole circle. The radius is half of the diameter. So its 3. So its asking to use 3 for pie and the formula is 4/3 pie r^3. So we do 4/3 times 3 times 3^3 and we get 108. I hope this helps.

Answer:

41.0 cm^2 to nearest tenth.

Step-by-step explanation:

Required area = Area of the semicircle - area of the clear triangle

Area semicircle = 0.5πr^2

= 0.5π *6^2

= 18π.

Finding Altitude h of the triangle :

cos 60 =  h / 6

h = 6 cos 60 = 6 * 1/2

= 3.

Finding Base b of the triangle:

sin 60 = 0.5b / 6

0.5b = 6 * sin 60

= 5.196.

So area of the triangle = h * 0.5b

= 3 * 5.196

Area of shaded region

= 18π -  3 * 5.196

= 40.96 cm^2

Answer:

38.52 cm²

Step-by-step explanation:

Take the shaded area to be found into 2 parts :

Area of left sector

Area subtended by top chord

Area (shaded)

Answer:

false

Step-by-step explanation:

i said so

Answer:false

Step-by-step explanation:

because im smart

brainleist? or scam?

Answer:

The grinding action between the plates at a transform plate boundary results in shallow earthquakes, large lateral displacement of rock, and a broad zone of crustal deformation.

Step-by-step explanation:

It transform boundaries are where plates slide past each other causing friction, leading to earthquakes.

This is my answer absolute 100% correct

Hope it helps Favor(Brainliest)

#Carryonlearning

Answer:

- 4 - 5i

Step-by-step explanation:

The centre of the circle is the average of the endpoints

centre = (- 2 + i - 6 - 11i ) ÷ 2

          = (- 8 - 10i ) ÷ 2

         = - 4 - 5i

Step-by-step explanation:

also provide box plot..

Answer:

Step-by-step explanation:

Answer:

A= $6.10

Step-by-step explanation:

1 book = $2.50

4 books = $10.00

1 bookmark = $1.95

2 bookmarks = $3.90

3.90 + 10.00 = $13.90

20.00 - 13.90 = $6.10

Answer:

True

this is true there is also another way of thinking of it

Imagine subtracting 3 from both sides so then it will be X= -3

Answer:

Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.Step-by-step explanation:

Answer:

Which expression is equivalent to 5(4x+3)-2x?a 18x+15b 18x+3c 7x+8d 2x+8

A-18x+15