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2 years ago

What is m pqr (3x-5) (x+1)

Mathematics

1 answer:

motikmotik2 years ago

3 0

use the app photomath it's helps so much !

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Solve for x in the equation x squared + 14 x + 17 = negative 96. x = negative 7 plus-or-minus 4 StartRoot 6 EndRoot i x = –7 ± 8

blagie [28]

Answer:

$x=-7\pm8i$

Step-by-step explanation:

we have

$x^{2} +14x+17=-96$

Equate to zero

$x^{2} +14x+17+96=0$

$x^{2} +14x+113=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2} +14x+113=0$

$a=1\\b=14\\c=113$

substitute in the formula

$x=\frac{-14\pm\sqrt{14^{2}-4(1)(113)}} {2(1)}$

$x=\frac{-14\pm\sqrt{-256}} {2}$

Remember that

$i=\sqrt{-1}$

$x=\frac{-14\pm16i} {2}$

$x=-7\pm8i$

7 0

2 years ago

Read 2 more answers

Tony’s class needs more than $500 for the school dance. So far, they have raised $200. They plan to have a car wash, charging $8

anzhelika [568]

<h2><em><u>PLZ MARK BRAINLIEST</u></em></h2><h2><em><u></u></em></h2>

No, he is not correct for if they washed 37 cars they would have made a total of 296 dollars washing cars. Because this is an inequality, he needs to get a value equal too or greater than 300 dollars on car washes. Also, because he already has 200 dollars collected, you could write the inequality as "8x is greater than or equal to 300".

3 0

2 years ago

Read 2 more answers

P(n,6)=3p(n,5) what is the value of n.

Leokris [45]

Answer:

n = 10

Step-by-step explanation:

3n1!/(n-4)! = (n-1)!/( n-1-5)

3n(n-1)(n-2)(n-3)(n-4) / N-4 -------- case1 ( cancel ( n-4) from top and bottom)

= (n-1)(n-2)(n-3)(n-4)(n-5)(n-6) / n-6 --------- case 2 ( Cancel n-6 from top and

bottom and also cancel n-1,

n-2, n-3 with case 1)

3n = ( n-4)(n-5)

3n = n² - 5n - 4n + 20

3n = n² - 9n + 20

0 = n² - 9n - 3n + 20

0 = n² - 12n + 20

0 = (n-2)(n-10)

n = 2 ( not valid) n = 10

Therefore n = 10

6 0

2 years ago

Lawrence has $50.

timofeeve [1]

<h2>A is the correct answer!</h2><h3></h3><h3>50 - 10 = 40</h3><h3>40 ÷ 12 = 3 R4 (I hate using remainder but I have to for this problem)</h3><h3>He can not buy more than 3 shirts.</h3><h3>So, he can buy less than 3 or equal to 3.</h3><h3></h3><h3><em>Please let me know if I am wrong.</em></h3>

7 0

2 years ago

Drag a symbol to the first box and a number to the second box to complete the solution to this inequality. Each number or symbol

Over [174]

Answer:

$z$