2 years ago

Can someone pls help me!!!

Mathematics

1 answer:

Annette [7]2 years ago

8 0

Answer:

10 i believe

Step-by-step explanation:

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A chemist is using 381 milliliters of a solution of acid and water. If 17.4% of the solution is acid, how many milliliters of ac

Romashka-Z-Leto [24]

Answer:

66.3 mL

Step-by-step explanation:

17.4% of 381 mL is ...

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3 years ago

In triangle PQR, PR = 23mm, QR = 39mm, and m<R = 163 degrees. Find the area of the triangle to the nearest tenth.

Schach [20]

Answer: 131.1287 square mm (approx)

Step-by-step explanation:

The area of a triangle,

$A=\frac{1}{2} \times s_1\times s_2\times sin \theta$

Where $s_1$ and $s_2$ are adjacent sides and $\theta$ is the include angle of these sides,

Here PR and QR are adjacent sides and ∠R is the included angle of these sides,

Thus, we can write,

$s_1 = PR= 23\text{ mm}$ , $s_2=QR=39\text{ mm}$ and $\theta = 163^{\circ}$ ,

Thus, the area of the triangle PQR,

$A=\frac{1}{2} \times 23\times 39\times sin163^{\circ}$

$A=\frac{262.257419136}{2} = 131.128709568\approx 131.1287\text{ square mm}$

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3 years ago

Find the distance between points E and W.

kiruha [24]

Answer:

0.8

Step-by-step explanation:

E is .5 units from 0 and 0 is .3 units from w. .5+.3=.8 units

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2 years ago

PLEASE HELP URGENTLY!!

Yuri [45]

Answer:

TPW is a isosceles because it has at least two equal sides and two equal angles (two congruent sides and angles)

Step-by-step explanation:

Hope that helps dude !

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Finding the area of a circle and a square (and shaded areas), three problems.

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Step-by-step explanation:

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