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ryzh [129]
2 years ago
7

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?<br><br> 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.

<u>Value of x:</u>

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

<u>Value of x:</u>

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.

<u>The measure of ∠G:</u>

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.<br><br> 5MN<br> 5MN - 4<br> 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:

5%

Step-by-step explanation:

10/200 × 100 = 5

hope this helps...

7 0
2 years ago
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