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2 years ago

Please help! image is shown below

Mathematics

1 answer:

Lorico [155]2 years ago

3 0

Answer:

Step-by-step explanation:

9/v=27/45 Cross multiply

405=27v Divide by 27 on both sides

15=v

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What is the value of n in the equation; 3n - 8 = 32 - n?

Marrrta [24]

N=10
3n-8=32-n
+8 +8
3n=40-n
+n +n
4n=40
Divide
n=10

7 0

3 years ago

Un carro recorre 784 kilometros en una hora expresar la rapidez en m/sg

9966 [12]

Answer:

217.7777 m/s

Step-by-step explanation:

1km = 1000 metros

784 km = 784*1000 = 784000 metros

1 hora = 3600 segundos

entonces:

784 kilómetros en una hora = 784km/h = 784000m/3600ses

= 217.7777 m /s

es decir que recorre en cada segundo:

217.7777 metros.

Tarea relacionada:

https://brainly.lat/tarea/16056884

4 0

3 years ago

Find an explicit rule for the nth term of a geometric sequence where the second and fifth terms are -6 and 162, respectively.

Vesna [10]

Answer:

b. an = 2 • (-3)^(n - 1)

Step-by-step explanation:

Before we test a solution or two, we can easily discard most of them.

We see the values alternate of signs (-5 for the 2nd term and +162 for the 5th term)... so the progression factor has to be negative (in order to alternate sign). <u>That already excludes answers A and C.</u>

Normally, a geometric progression has the (n-1) exponent, not (n+1), so our chances seem to be better with B.

We can test both D and B with n = 2, to obtain -6

Let's test answer D before:

$a_{2} = 2 * (-3)^{2+1} = 2 * (-3)^{3} = 2 * -27 = -54$

The result is -54, not -6... so it's not the right result.

Let's test answer B then:

$a_{2} = 2 * (-3)^{2-1} = 2 * (-3)^{1} = 2 * -3 = -6$

Right! Let's verify with n=5 to get 162:

$a_{5} = 2 * (-3)^{5-1} = 2 * (-3)^{4} = 2 * 81 = 162$

Confirmed, answer is B. an = 2 • (-3)^(n - 1)

3 0

2 years ago

102 = V - 66 <br> Addition and subtraction equation practice

Slav-nsk [51]

Answer:

$V=168$

Step-by-step explanation:

$Here,102=V-66$

$102+66=V$

$168=V$

Sorry If it is wrong.....

6 0

2 years ago

Read 2 more answers

HELP HELP HELP HELP HELP HELP PLZZ<br> SOMEONE

velikii [3]

Answer:

B.) 4.18 square inches

Step-by-step explanation:

Find the area of the one right triangle and multiply it by two. The formula for the area of a triangle is:

$A=\frac{1}{2} bh$

Insert the values. 1.1 is the base and 3.8 is the height:

$A=\frac{1}{2} *1.1*3.8$

Simplify:

$A=\frac{1*1.1*3.8}{2} \\\\A=\frac{4.18}{2} \\\\A=2.09$

Multiply the area of one triangle by two:

$2.09*2=4.18\\\\A=4.18$

The total area of the shaded figures is $4.18$ $in^2$

:Done

8 0

2 years ago