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xxMikexx [17]
4 years ago
12

The Castillo de San Marcos is a Spanish

Mathematics
1 answer:
ANEK [815]4 years ago
4 0

Answer:

a. 14,000 pesos

b. 23 years

Step-by-step explanation:

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PLEASE HELP!!!!!!!! FIRST TO ANSWER WILL GET BRAINLIEST!!!
liraira [26]

Answer:

Step-by-step explanation:

A2+B2=C2

2(2)+2(2)=C2

4+4=C2

8=C2

C= About 2.8

3 0
4 years ago
PLEASE SOLVE IT WITH EXPLANATION!!<br>DONT TAKE POINTS :)<br>​
zloy xaker [14]

Step-by-step explanation:

We are asked to simply (2√5 + 3√2)². Using formula: (a + b)² = a² + b² + 2ab. Let's say 2√5 = a, 3√2 = b. So,

→ (a + b)² = a² + b² + 2ab

→ (2√5 + 3√2)² = (2√5)² + (3√2)² + 2(2√5)(3√2)

We are aware about the fact that root means 1/2 and square of root means 2/2 that is 1. Using this we get:

→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2√5)(3√2)

Solve the brackets, to do so first put the like terms in one box.

→ (2√5 + 3√2)² = 4(5) + 9(2) + 2(2*3)(√5)(√2)

Solve the rest calculations.

→ (2√5 + 3√2)² = 20 + 18 + 2(6)(√10)

→ (2√5 + 3√2)² = 38 + 12√10

Option (a) (38 + 12√10) is the correct option.

4 0
3 years ago
Read 2 more answers
Graph the line y=-1/5x-2
olga nikolaevna [1]

Answer:

Can't really show a graph but I'll explain how to:

Step-by-step explanation:

Plot the point (0,-2) since -2 is the y=intercept. After, just count-down 1 unit and count 5 units to the right. I hoped this helped!

4 0
4 years ago
40k+36=? <br> ivbuivbr vpui34vb[ervb[uir3bv34
kobusy [5.1K]

Answer:

0

Step-by-step explanation:

40k =  - 36

k =  -  \frac{9}{10}

40( -  \frac{9}{10} ) + 36 = 0

- 36 + 36 = 0

4 0
3 years ago
Which expression is equivalent to (x^2-3x)(4x^2+2x-9)
PolarNik [594]
For # 3 and 5 you need to use the quadratic formula: 
<span>(-b +/- srt(b^2 - 4ac))/2a </span>
<span>a, b, and c are representative of this formula: ax^2 +bx + c </span>

<span>1) 2x^2+3x-9=0 </span>
<span>(2x - 3)(x + 3) = 0 </span>
<span>2x - 3 = 0, x + 3 = 0 </span>
<span>+3 +3, -3 -3 </span>
<span>2x = 3, ***x = -3*** </span>
<span>/2 /2 </span>
<span>***x = 3/2*** </span>

<span>2) 5x^2+2x=0 </span>
<span>(x)(5x + 2) = 0 </span>
<span>5x +2 = 0, ***x = 0*** </span>
<span>-2 -2 </span>
<span>5x = -2 </span>
<span>/5 /5 </span>
<span>***x = -2/5*** </span>
<span>4) 4x^2+7x-2=0 </span>
<span>(4x - 1)(x + 2) = 0 </span>
<span>4x - 1 = 0, x + 2 = 0 </span>
<span>+1 +1, -2 -2 </span>
<span>4x = 1, ***x = -2*** </span>
<span>/4 /4 </span>
<span>***x = 1/4***</span>
4 0
4 years ago
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