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Zinaida [17]
3 years ago
6

What expression is equivalent

Mathematics
1 answer:
Citrus2011 [14]3 years ago
3 0

Answer:

-4x^2, -3x, -5

Step-by-step explanation:

-4x^2 + 2x - 5 (1 + x)

-4x^2 + 2x - 5 + 5x

-4x^2 - 3x - 5

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Juan and his little brother Miguel ran around a circular track together. Juan ran on the inner track, which has a radius of 30 f
eduard

Answer:

80pi-60pi

Step-by-step explanation:

To find how much Juan ran, we must find the circumference.

pi *30*2=60*pi  (which is how much Juan ran.)

pi*40*2=80*pi (which is how much Miguel ran)

80pi-60pi would be how much farther Miguel ran than Juan.

8 0
3 years ago
Simplify the following expression a3b2 divided a2b
lesya [120]
<span><span> a3b2/a2b</span> </span>Final result :<span> ab3 </span>Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "a2"   was replaced by   "a^2".  2 more similar replacement(s).

Step by step solution :<span>Step  1  :</span><span> b2 Simplify —— a2 </span><span>Equation at the end of step  1  :</span><span><span> b2 ((a3) • ——) • b a2 </span><span> Step  2  :</span></span>Multiplying exponential expressions :

<span> 2.1 </span>  <span> b2</span> multiplied by <span>b1 = b(2 + 1) = b3</span>

Final result :<span> ab<span>3</span></span>
3 0
3 years ago
Read 2 more answers
What is 7x-1+6x-1=180? SHOW WORK!!!!!!
seropon [69]
7x - 1 + 6x - 1 = 180

add the x’s, add the numbers

13x - 2 = 180

add 2 to 180

13x = 182

divide 182 by 13

x = 14
8 0
3 years ago
Read 2 more answers
Find the formula for an exponential function that passes through the two points give.
Ksenya-84 [330]

Answer:

y=3(2)^{x}

Step-by-step explanation:

Given.

Two points are given.

(x, y)=(-1,\frac{3}{2}) and (x, y)=(3,24)

An exponential function is in the general form.

y=a(b)^{x}-------(1)

We know the points  (-1,\frac{3}{2}) and (3,24)

put the first point value in equation 1

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

\frac{3}{2}=\frac{a}{b}

a=\frac{3}{2}\times b--------(2)

put the second point value in equation 1

24=a(b)^{3}----------(3)

Put the a value from equation 2 to equation 3

24=\frac{3}{2}\times b(b)^{3}

b^{3+1}=\frac{24\times 2}{3}

b^{4} = 16\\b=\sqrt[4]{16} \\b=2

Put the b value in equation 2

a=\frac{3}{2}\times 2

a=3

Put the a and b value in equation 1

y=3(2)^{x}

So, the exponential function that passes through the points  (-1,\frac{3}{2}) and (3,24)) are y=3(2)^{x}.

6 0
3 years ago
Evaluate each function: 1. p(a) = 3a-2; find p(-5) 2. h(t) = 4t+2; find h(-4) 3. f(a) = 3a-4; find f(1) 4. g(x) = 3x+ 1; find g(
frutty [35]
A-2x = 45 explained the theropod waysiver
3 0
3 years ago
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