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Pachacha [2.7K]
3 years ago
8

What is the answer for 3r=10+5 when r=10

Mathematics
1 answer:
katen-ka-za [31]3 years ago
6 0

Answer:

Step-by-step explanation:

What is the VALUE OF 3r=10+5 when r=10?

substitute 10 for r in 3r=10+5.  We get:

3(10) = 10 + 5, or 30 = 15.  This equation is FALSE when r = 10.

You could solve the equation for r, however:

3r=10+5 becomes 3r = 15, and so r = 5.  5 is a solution; 10 is not a solution.

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If f(x)=x^2 what is g(x)<br> A. g(x)=1/9x^2<br> B. g(x)=(1/3x)^2<br> C. g(x)=3x^2<br> D. g(x)=1/3x^2
Pavlova-9 [17]

Answer:

the answer is B

Step-by-step explanation:

3 0
3 years ago
Write an equation for the parent function y = x^ 2 stretched by a factor of 6 and shifted down 4 units?
Sunny_sXe [5.5K]

Answer:

&nbsp;

Translations

y = f (x) + k up k units

y = f (x) - k down k units

y = f (x + h) left h units

y = f (x - h) right h units

Stretches/Shrinks

y = m·f (x) stretch vertically by a factor of m

y = ·f (x) shrink vertically by a factor of m (stretch by  

y = f (x) stretch horizonally by a factor of n

y = f (nx) shrink horizontally by a factor of n (stretch by )

Reflections

y = - f (x) reflect over x-axis (over line y = 0)

y = f (- x) reflect over y-axis (over line x = 0)

x = f (y) reflect over line y = x

Hope this helps

Step-by-step explanation:

5 0
3 years ago
Which is the value of this expression when a=5 and k=-2
Zinaida [17]

Answer:

Option C is correct.

Step-by-step explanation:

We are given the expression:

(\frac{3^2a^{-2}}{3a^{-1}})^k

The value of a =5 and k = -2

Putting the values and solving

=(\frac{3^2*5^{-2}}{3*5^{-1}})^-2\\=(\frac{3^{2-1}}{5^{-1+2}})^-2\\=(\frac{3^{1}}{5^{1}})^-2\\\\=(\frac{3}{5})^-2\\if \,\,a^{-1} \,\,then\,\, 1/a\\=\frac{(3)^{-2}}{(5)^{-2}}\\ Can\,\,be\,\,written\,\,as\\\\=\frac{(5)^{2}}{(3)^{2}} \\=\frac{25}{9}

Option C is correct.

3 0
3 years ago
The price of a 5-minute phone call is $1.75. What is the price of a 12-minute phone call?
Ksju [112]

Answer:

$4.20

Step-by-step explanation:

you first do 1.75 divided by 5 which gives you .35

so you do .35 times 12 which gives you 4.2

6 0
3 years ago
Choose the problem modeled by the picture.
tekilochka [14]

Answer:

  B) 1/4 × 3/6 = 3/24

Step-by-step explanation:

1/4 of the rectangles are colored blue(ish).

3/6 of the rectangles are colored yellow(ish).

The colors overlap in 3/24 of the rectangles.

The problem statement with these numbers in it is that of choice B.

3 0
3 years ago
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