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lukranit [14]
3 years ago
9

7. If A = 2x + 3 and B = x^2 – 5x + 1, what is the value of A - 5B?​

Mathematics
1 answer:
DerKrebs [107]3 years ago
3 0

Answer:

5B is 52

Step-by-step explanation:

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Please help, will give brainliest if possible!!
Arisa [49]

Answer:

[(pq,dc) (rs,ab)(ad,rq)(bc,sq)corosponding sides]

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2 years ago
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For what value of a does (1/9)^a+1 =81^a+1 x 27^2-a ?<br><br>-4<br>-2<br>2<br>6
EastWind [94]

Answer:

- 4

Step-by-step explanation:

Using the rule of exponents

• a^{m} × a^{n} ⇔ a^{(m+n)}

• a^{-m} ⇔ \frac{1}{a^{m} }

(\frac{1}{9}) ^{a+1} = 9^{-(a+1)} = 3^{-2(a+1)}

and right side

= 3^{4(a+1)} × 3^{3(2-a)}

Hence

3^{-2a-2} = 3^{4a+4} × 3^{6-3a}

3^{-2a-2} = 3^{a+10}

Equating exponents on both sides gives

a + 10 = - 2a - 2 ( add 2a to both sides )

3a + 10 = - 2 (subtract 10 from both sides )

3a = - 12 ( divide both sides by 3 )

a = - 4

4 0
4 years ago
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The function g(x) = x2 - 10x + 24 is graphed on a coordinate plane. Where will the function cross the x-axis?
Ivenika [448]

Answer:

(4.0) and (6.0)

Step-by-step explanation:

when the function cross the x- axis

the y-coordinate equals to zero

x2 - 10x + 24=0

x=6,4

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3 0
3 years ago
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Solve cach equation.<br> 2) -2 - 1+"<br> 5
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Answer:

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Step-by-step explanation:

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3 years ago
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SOVA2 [1]

Answer:

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Step-by-step explanation:

Mr Cool's Rentals-

432 minus 100 = 332

332 * 0.11 = 36.52

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Sensational Rentals-

432 minus 150 = 282

282 * 0.15 = 42.3

42.3 + 42.3 = 84.6

84.6 + 75 = 159.6

The cost will be $159.6 if she goes with Sensational Rentals.

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3 years ago
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