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2 years ago

2H20 1) How many hydrogen atoms are represented by this much water? A) 1 B) 2 0.4 D) 6

Mathematics

1 answer:

Dahasolnce [82]2 years ago

5 0

Answer is B)2
2 hydrogen atom in the water molecule
H2O

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For question 6 what is that value of x? For question 7 find m

forsale [732]

(6) Given that in ΔPQR, m∠P = (x+14)°, m∠Q = (6x-12)° and m∠R = (3x+8)°

We need to determine the value of x.

Value of x:

By triangle sum property, we have;

$\angle P+\angle Q+\angle R=180^{\circ}$

Substituting the values, we get;

$x+14+6x-12+3x+8=180$

$10x+10=180$

$10x=170$

$x=17$

Thus, the value of x is 17

(7) Given that ΔGHI, m∠G = (4x+13)°, m∠H = (8x-52)° and m∠I = (2x+4)°

We need to determine the measure of ∠G

Value of x:

By triangle sum property, we have;

$\angle G+\angle H +\angle I=180$

Substituting the values, we get;

$4x+13+8x-5+2x+4=180$

$14x+12=180$

$14x=168$

$x=12$

Thus, the value of x is 12.

The measure of ∠G:

Substituting x = 12 in m∠G = (4x+13)°, we get;

$m\angle G=(4(12)+13)^{\circ}$

$m\angle G=(48+13)^{\circ}$

$m\angle G=61^{\circ}$

Thus, the measure of angle G is 61°

3 0

3 years ago

Simplify 5(MN + 1) - 5. 5MN 5MN - 4 5MN + 4

Ilia_Sergeevich [38]

5mn is the simplified answer

4 0

3 years ago

Read 2 more answers

Pls help i will give u brianliest

Fynjy0 [20]

Answer:

Slope = -3

y-intercept = (0,-4)

Equation: y = -3x-4

Step-by-step explanation:

We can take any two input-output pairs from the table to find the equation of given function.

Linear function is given by:

$y =mx+b$

Here m is the gradient of the functions which is defined as:

$m = \frac{rise}{run} = \frac{y_2-y_1}{x_2-x_1}$

The input-output pairs are:

(x1,y1) = (-1,-1)

(x2,y2) = (0,-4)

First of all,

$m = \frac{-4-(-1)}{0-(-1)}\\= \frac{-4+1}{1} = -3$

Putting the value of slope in the equation

$y = -3x+b$

Putting (-1,-1) in the equation

$-1 = -3(-1)+b\\-1 = 3+b\\b = -1-3\\b = -4$

The equation will be:

$y = -3x-4$

Hence,

Slope = -3

y-intercept = (0,-4)

Equation: y = -3x-4

7 0

3 years ago

Please help thanks❗

Fynjy0 [20]

Answer:

U, V

Step-by-step explanation:

4 0

2 years ago

A savings account increases from $200 to $210 what is the percent increase of the savings in the account.

Illusion [34]

Answer:

Step-by-step explanation:

10/200 × 100 = 5

hope this helps...

7 0

2 years ago

2H20 1) How many hydrogen atoms are represented by this much water? A) 1 B) 2 0.4 D) 6​

2H20 1) How many hydrogen atoms are represented by this much water? A) 1 B) 2 0.4 D) 6