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nata0808 [166]
2 years ago
7

MARKING BRAILIEST 20 POINTS! Please Help! Math for Middle School!!!

Mathematics
2 answers:
Kitty [74]2 years ago
8 0

Answer:

720 and 224 (i think)

Step-by-step explanation:

kotegsom [21]2 years ago
6 0

Answer:

1. 720 inches squared

2. 99 cm squared

Step-by-step explanation:

First question:

break up the shapes.

shape 1: square

find the area of the square

A=LxW

A=24x24=576

shape 2: triangle

A=1/2bh

to find base 36-24= 12

12x24=288/2=144

144+576

Second question:

find the area of the whole shape

9x15=135

find the area of the smaller shape

6x6=36

135-36= 99

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- Write a recursive formula to represent the sequence below.<br> (3,7, 11, 15, 19,23,27,31,35, ...)
NemiM [27]

<em><u>The recursive formula to find nth term of sequence is:</u></em>

a_n = 4n - 1 \text{ where } n \geq 1 and n  = 1, 2, 3, ....

<em><u>Solution:</u></em>

Given a sequence is:

3, 7, 11, 15, 19, 23, 27, 31, 35

<em><u>Let us find the difference between terms</u></em>

7 - 3 = 4

11 - 7 = 4

15 - 11 = 4

19 - 15 = 4

23 - 19 = 4

27 - 23 = 4

31 - 27 = 4

35 - 31 = 4

Thus the difference between terms is constant

Thus the given sequence is arithmetic sequence

An arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant

<em><u>The nth term of arithmetic sequence is given by:</u></em>

a_n =a_1+(n-1)d

a_n = the nᵗʰ term in the sequence

a_1 = the first term in the sequence

d = the common difference between terms

Here in the given sequence

d = 4

a_1=3

Substitute in above formula,

a_n = 3 + (n-1)(4)\\\\a_n = 3 + 4n - 4\\\\a_n = 4n - 1

<em><u>Thus the recursive formula to find nth term of sequence is:</u></em>

a_n = 4n - 1 \text{ where } n \geq 1 and n = 1, 2, 3, ......

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3 years ago
PLEASE HELP FOR 20 POINTS, Yesterday, Chang planted 6 trees that were each 8 feet tall in his yard. Chang projects the trees to
Mashcka [7]

Answer:

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Step-by-step explanation:

Just cause

5 0
3 years ago
Read 3 more answers
6. It takes a delivery truck 2 hours to travel 70 km to deliver a new fridge. The truck drives part of
SOVA2 [1]

Answer:

40 km on the highway

30 km on the city roads

Step-by-step explanation:

Let x = highway

Let y = city road

The time formula: time = distance / speed.

1) Since we do not know the distance travelled on the highway and city roads but we do know the total time taken, we can say x + y = 70. Set the distances x and y and all equated to 2 hours, since we do not know them, nor do we know the time. This is called a system of equations.

x + y = 70

x/80 + y/20 = 2

2) Solve the system of equations using substitution.

x = 70 - y

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

70 - y/80 + y/20 = 2

70 + 3y/80 = 2

y = 30

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x + 30 = 70

x = 70 - 30

x = 40

Therefore, the delivery truck travelled 40 km on the highway and 30 km on the city roads.

8 0
2 years ago
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