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4 years ago

10

Approximate the value of

sqrt{5} " align="absmiddle" class="latex-formula">
to the nearest hundredth? Please help me.

1 answer:

k0ka [10]4 years ago

5 0

2.2367 , therefore to the nearest hundredth it would be 2.237

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Logan is a land surveyor. He wants to determine d, the distance across a lake that cannot be directly measured. He draws this di

Mice21 [21]

Answer:

The first option (5.7km)

Step-by-step explanation:

Since we have a right angle triangle and we know two of its sides we can easily find out the thirds side (the value of d) by using the Pathagoras Theorem. In our case 7 and d are our legs and the hypotenuse is equal to 9, so...

(Based on the Pathagoras Theorem)

$c^{2} = a^{2} + b^{2}$

$9^{2} = 7^{2} + d^{2}$

$d^{2} = 9^{2} - 7^{2} \\d^{2} = 81 - 49\\d^{2} = 32\\d = \sqrt{32}\\$

d ≈ 5.7km

There for aproximate distance across the lake is equal to 5.7km

7 0

3 years ago

Read 2 more answers

After 14 boys leave a concert, the ratio of boys to girls is 3:10. If there are p girls at the concert, write an algebraic expre

Gemiola [76]

I think there was 17 boys at the beginning of the concert. But i don't know how to put it in terms of P

3 0

3 years ago

Five years from now, the sum of the ages of a women and her daughter will be 40 years. The difference in their present age is 24

CaHeK987 [17]

Answer:

Her daughter is <u>3 years</u> old now.

Step-by-step explanation:

Given:

Five years from now, the sum of the ages of a women and her daughter will be 40 years.

The difference in their present age is 24 years.

Now, to find how old is her daughter now.

Let the age of daughter be $x\ years$ .

And the age of mother be $y\ years$ .

According to question:

$(x+5)+(y+5)=40$

⇒ $x+y+10=40$

<em>Subtracting both sides by 10 we get:</em>

⇒ $x+y=30$

⇒ $x=30-y$ ............( 1 )

Now, as given in question:

The difference in their present ages is 24 years.

$x-y=24$

Putting the equation ( 1 ) in the place of $x$ we get:

⇒ $(30-y)-y=24$

⇒ $30-2y=24$

<em>Moving variable on one side and the numbers on the other:</em>

⇒ $30+24=2y$

⇒ $54=2y$

<em>Dividing both sides by 2 we get:</em>

⇒ $27=y$

So, <em>the age of the mother is 27 years.</em>

Now, putting the value of $y$ in equation( 1 ) we get:

$x=30-27$

⇒ $x=3$

<em>The age of daughter is 3 years.</em>

Therefore, her daughter is 3 years old now.

4 0

3 years ago

2+X/9 = 5x-6/27 SOLVE.

oksano4ka [1.4K]

Answer:

x = 6

Step-by-step explanation:

First, we need to cross multiply on both sides, which gives us:

9 * (5x - 6) = 27 * (2 + x)

45x - 54 = 54 + 27x

Now, we want to isolate x on either side.

We can substract 54 from both sides:

(45x - 54 = 54 + 27x) - 54

45x - 108 = 27x

We then subtract 45 from both sides:

(45x - 108 = 27x) - 45

-108 = -18x

Finally, we divide both sides by -18:

(-108 = -18x) / -18

6 = x

6 0

2 years ago

X to the power of 2 subtract 3x for x=4

Helen [10]

First, X^2 while x is 4 =4^2, which is 4x4, which is 16
3X while x is 4 is 12. 16-12=4. So the answer is 4

6 0

3 years ago