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svetoff [14.1K]
3 years ago
6

Apply the distributive property to factor out the greatest common factor of all three terms. {10a - 25 + 5b} =10a−25+5b =

Mathematics
1 answer:
Rom4ik [11]3 years ago
8 0

Answer:

5(2a -5 + b)

Step-by-step explanation:

(10a - 25 + 5b) = 5( 2a - 5 + b)

5(b +  2a  - 5) = 5(2a - 5 + b)

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using the graph calculator to graph the function f(x)=-√x. which list contain three points that lie on the graph of the function
Elina [12.6K]
X cannot be negative, so the first option and the third option are out.
when x = 1, f(x) = -1; when x = 4, f(x) = -2 and when x = 9, f(x) = -3. Hence the last option.
7 0
3 years ago
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What is the value of a1 of the geometric series? Sigma-Summation Underscript n = 1 Overscript infinity EndScripts 12 (negative o
Sliva [168]

Answer:

a_1=12

Step-by-step explanation:

Assuming the geometric series is

$\sum_{n=1}^{\infty} 12*(-\frac{1}{3} )^{n-1}$

then nth term is

a(n)=12*(-\frac{1}{3} )^{n-1},

and the first term is found when n=1:

a_1=12*(-\frac{1}{3} )^{1-1}=12*(-\frac{1}{3} )^0\\\\\boxed{a_1=12}

6 0
3 years ago
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Find modulus and principle argument of compiles numbers Z=5/2(cos300+isin300)
Paul [167]

z = \frac{5}{2}(\cos(300) + i\sin(300)) = \frac{5}{2}(\frac{1}{2} - i\frac{\sqrt{3}}{2})\\|z| = \sqrt{(\frac{5}{4})^2 + (\frac{5\sqrt{3}}{4})^2} = \sqrt{\frac{25}{16} + \frac{75}{16}} = \sqrt{\frac{100}{16}} = \frac{10}{4} = \frac{5}{2}

7 0
3 years ago
A clothing store is offering two coupons. one is for $50 off your purchase and the other is for 30% off your purchase. If the to
abruzzese [7]

Answer:

B.

Step-by-step explanation:

$195.42 - $50 = $145.42

$195.42/30% = 136.79

7 0
3 years ago
An airplane company wants to make a model of an 87 foot airplane. The scale they are using is 2in=8ft. How many inches long with
Tanya [424]

Answer:

  • B. 21.75 in

Step-by-step explanation:

The length of the airplane = 87 feet

<u>The scale  </u>

  • 2in = 8ft ⇒ 1 ft = 2/8 in ⇒ 1 ft = 1/4 in

<u>The length of the model:</u>

  • 87*1/4 in = 21 3/4 in = 21.75 in

Correct choice is B

8 0
3 years ago
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