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Alborosie
2 years ago
15

What is another way to write the time "quarter till 8"?​

Mathematics
1 answer:
vesna_86 [32]2 years ago
5 0

Answer:

7:45

Step-by-step explanation:

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If 445 to base n is equal to 173,find the value of n​
Troyanec [42]

Answer:

6

(4×n²) + (4×n¹) + (5×n^0) = 173

4n² + 4n + 5 = 173

4n² + 4n = 168

divide through by 4

n² + n - 42 = 0

n² + 7n - 6n - 42= 0

(n + 7)(n - 6) = 0

n = -7 or 6

but the solution is 6 since base is not negative.

6 0
3 years ago
Graph the equation.<br> y = 1/3 (x + 3)(x – 3)
kolbaska11 [484]

Answer:

Step-by-step explanation:

screen shot attached

6 0
3 years ago
Read 2 more answers
Do alto de um farol cuja altura é de 20 m avista se um navio sob ângulo de depressão de 30°. A que distância , aproximadamente,
Mkey [24]
Esta é a trigonometria . Se você desenhar uma linha a partir do topo da casa de luz para o barco, você terá a hypotonuse de um triângulo. Um truque é lembrar que este é um triângulo especial. É um triângulo 30-60-90 , que tem propriedades especiais mostradas na fixação abaixo . por isso sabemos que o lado adjacente que não é o hyposonuse é x√3 . Agora sabemos que x<span>√3 = 20
Solve for x.
x</span><span>√3=20
divide both sides by </span><span>√3.
x=20/(</span><span><span>√3)
</span>Try not to have square roots (</span><span><span>√)</span> in denomenator so multiply top and bottom by </span><span>√3 and get
x=(20</span><span>√3)/3
x is what we are looking for so the answer is </span>
20<span>√3 m </span><span>ou cerca de 34.64 m</span>










7 0
3 years ago
Evaluate the expression:
FinnZ [79.3K]

Answer:

vw= 22

Step-by-step explanation:

To find the dot product of vw, multiply the corresponding numbers and add them.

v= <3, -8, -3> w= <-4, -2, -6>

vw= (3*-4)+(-8*-2)+(-3*-6)

vw= -12+16+18

vw= 4+18

vw= 22

6 0
3 years ago
The equation of three other functions are given which function or functions have a slope equal to the slope of Function 1
ratelena [41]

Answer:

See Explanation

Step-by-step explanation:

Required

Function(s) with the same slope as function 1

The question is incomplete as function 1 and the three additional functions are not given.

However, I will provide a general explanation.

A slope is represented as:

y = mx + b

Where

m \to slope

So, considering the following equations

y = 2x + 3

y = \frac{3x}{2} + 9

y = 2x - 5

y = -2x + 3

The following equations have the same slope

y = 2x + 3 and y = 2x - 5

Because: y = mx + b implies that:

m = 2 for y = 2x + 3 and y = 2x - 5

5 0
3 years ago
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