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11111nata11111 [884]
3 years ago
5

David has half as many pictures on his i-Phone as his wife Nicky does. Together they have a total of 147 pictures on their i-Pho

nes. How many pictures does Nicky have on her i-Phone and how many pictures does David have on his i-Phone?
Mathematics
1 answer:
Andru [333]3 years ago
5 0

Answer:

the conjuring is the first thing that I did to the first lady of the WORLD that the WORLD that

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If x*3=64, what is the value of x?
dusya [7]

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x = 21.3 repeating. so put the - on top of the 3 if you're writing it down

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Slav-nsk [51]

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601

Step-by-step explanation:

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3 years ago
If sin(Ф)=3/5, and cos(Ф)=-4/5, which of the following is true?
Juli2301 [7.4K]

Answer:

Step-by-step explanation:

b.) cos((π/2)-Ф)=-3/5 is true because :

cos((π/2)-Ф)= sin(Ф)

8 0
3 years ago
Which is not an equation of the line going through (3, -6) and (1, 2)?
777dan777 [17]

Answer:

B, C

Step-by-step explanation:

The equation of a line can be given by y -y₁= m(x -x₁), where m is the slope. This is also known as the point-slope form.

\boxed{ slope = \frac{y _{1} - y_2 }{x_1 - x_2} }

Slope of the line

=  \frac{2 - ( - 6)}{1 - 3}

=  \frac{2 + 6}{ - 2}

= \frac{8}{ - 2}

= -4

<em>Substitute m= -4 into the equation:</em>

y -y₁= -4(x -x₁)

<em>Substitute a pair of coordinates into (x₁, y₁):</em>

Let's start by substituting (1, 2).

y -2= -4(x -1)

This gives us the same equation as D, making D an incorrect option. Note that the question asks for which is not the correct equation.

Let's change the above into the slope-intercept form, where by y is the subject of formula.

<em>Start by expanding the right-hand side:</em>

y -2= -4x +1

<em>+</em><em>2</em><em> on both sides:</em>

y= -4x +3

This equation is not the same as C. C is thus the correct option.

Let's check for options A and B.

The equation in option B is not the correct equation either as they have substituted (2, 1) instead of (1, 2) into (x₁, y₁). Thus, option B is also correct.

y -y₁= -4(x -x₁)

Substitute (3, -6) into (x₁, y₁):

y -(-6)= -4(x -3)

y +6= -4(x -3)

This is the same as option A, making option A incorrect too.

4 0
2 years ago
6. Gabriella invests $6,500 into a savings account that earns 4.5% interest, and she is investing the money for 5 years without
sdas [7]

Answer:

1,462.50

Step-by-step explanation:

6500

x.045

=292.50 per year

x.         5 years

=1,462.50

4 0
3 years ago
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