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3 years ago

Please answer as soon as possible!!

Mathematics

1 answer:

harkovskaia [24]3 years ago

6 0

Answer:

2.29

Step-by-step explanation:

First determine the square root of 17.8

√17.8 = 4.22

second, determine the value of $1.3^{2.5}$ = 1.93

subtract 1.93 from 4.22

4.22 - 1.93 = 2.29

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what is the molariry of a solution that contains 1.22 mol of hydrogen chloride if the total volume of the solution is 1,251 mL?

hichkok12 [17]

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3 years ago

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Please help I’ll mark you as brainliest if correct!

schepotkina [342]

Increases by +2
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Sixth number would be 17+2=19
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2 years ago

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If PQR ~ UTV, find the value of x.

user100 [1]

The value of x is 15.

Solution:

Given ΔPQR $\sim$ ΔUTV.

If two triangles are similar, then the corresponding parts are congruent.

$$\Rightarrow \frac{PR}{UV} =\frac{RQ}{VT}$

$$\Rightarrow \frac{14}{x + 6} =\frac{8}{x -3}$

Do cross multiplication, we get

⇒ 14(x - 3) = 8(x + 6)

⇒ 14x - 42 = 8x + 48

Add 42 on both sides.

⇒ 14x = 8x + 90

Subtract 8x on both sides.

⇒ 6x = 90

Divide by 6 on both sides.

⇒ x = 15

The value of x is 15.

5 0

3 years ago

Can anyone help not understanding? And can you explain how you got it. Thanks for all your help!

Allushta [10]

No, the height wouldn't be 70 feet, it would be 80 feet.

You would get this answer by using the equation h= A/b (h meaning height)
A = area ( or 20,000)
b= base ( or 250)

Then you divide A by b:
20,000/ 250 =
80

I hoped this helped! :)

8 0

3 years ago

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ioda

Tan65°=h/75m

2.1445 × 75 = h

h = 160.83

Step-by-step explanation:

This is very very simple

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2 years ago