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kondor19780726 [428]
3 years ago
13

Find the area ofa rectangle 15ft base 4heiht

Mathematics
2 answers:
Darya [45]3 years ago
7 0

Formula for Area

Area= Base * Height

= 15*4

= 60 ft^2

Answer: 60 ft^2

inessss [21]3 years ago
6 0

Answer:

60 ft^2

Step-by-step explanation:

The area of a rectangle is given by

A = b*h  where b is the base and h is the height

A = 15*4

A = 60 ft ^2

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Add the first 12 terms of this sequence:<br> 15, 45, 135, 405, 1215, ...
UkoKoshka [18]

Answer:

Step-by-step explanation:

a₁ = 15

a₂/a₁ = 45/15 = 3

a₃/a₂ = 135/45 = 3

...

It is a geometric sequence with a common ratio r=3.

Sum of first 12 terms = a₁·(1-r¹²)/(1-r)

= 15·(1-3¹²)/(1-3)

= 15·(-531,441)/(-2)

= 3,985,800

7 0
3 years ago
Please help with 22. and 23.
kirill115 [55]

Answer:

22) y=1/4x-3/4

23) y=-1/3x-9

Step-by-step explanation:

22 ) Using the rise/run strategy, we can find the slope. From (-1,-1) you go up 1 unit to reach the same level as (3,0), and go right 4 to reach (3,0). This means your rise/run is 1/4, which is also your slope. Now to find the y-intercept, we can use the equation format y=mx+b. m is your slope, which we have, and b is the y intercept. With y and x, we can substitute in a point we already know, for example (-1,-1) as (x,y). When everything we know is substituted in, we get -1=(1/4)(-1)+b. According to PEMDAS, we should now multiply 1/4 and -1 to get (-1/4). Now our equation is -1=-1/4+b. To isolate B, we need to add 1/4 on both sides. As a result, you'll get -3/4. Your y intercept is -3/4. Thus, the final equation is y=1/4x-3/4.

23) This question is a lot more straight forward than question 22. In this question, you're already given everything in the equation to substitute everything in. Like I said before, the format for a linear equation is y=mx+b where m is your slope and b is your y intercept. This question already gives you both the slope and y intercept, so you can just fill it in. (m = -1/3, b= -9) Thus, you'll get y=-1/3x-9.

8 0
3 years ago
What is the following quotient? 6-3(3 √8)/3 √9
WARRIOR [948]

Answer:

Factor the numerator and denominator and cancel the common factors.

Exact Form:

2

3

√

3

−

3

√

18

Decimal Form:

0.26375774

5 0
3 years ago
Read 2 more answers
Mrs. Trout estimated her math class next year would include 28 students. The actual size of the class turned out to be 32 studen
alina1380 [7]

Answer:

Step-by-step explanation:

4 0
3 years ago
What is the length of the unknown side​
KatRina [158]

Answer: ↓↓↓

Step-by-step explanation:

1. a = ?   b = 16  c = 18

a² + b² = c²

a² + (16)² = (18)²

a² +  256 = 324

     - 256   -256

a² = 68

√a² = √68

a ≈ 8.25

2. a = 4     b = 8     c = ?

a² + b² = c²

(4)² + (8)² = c²

16 + 64 = c²

80 = c²

√c² = √80

c ≈ 8.94

7 0
2 years ago
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