plese help me with it

Answer:

x=7,x=-2

Step-by-step explanation:

x^2-5x-14=0

x^2-7x+2x-14=0

x(x-7)+2(x-7)=0

(x-7)(x+2)=0

x=7;x=-2

Answer:

= 7

= − 2

Step-by-step explanation:

hope this helps you sorry if it does not

Hi there!

To find f(-100), substitute in -100 for the x in the function.

f(x) = x/50

Plug in -100 for x:

f(-100) = -100/50

Evaluate:

f(-100) = -2

Answer:

Step-by-step explanation:

3(x - 4) + 2(x + 5) = 3*x - 3*4  + 2*x + 2*5

                          = 3x - 12 + 2x + 10

                          = 3x + 2x  - 12 + 10   {Combine like terms}

                          = 5x - 2

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Using identity :

the Above term can be written as :

Answer:

16 children would be left out in this arrangement​

Step-by-step explanation:

Total number of children in a school = 500

For P.T. Drill number of rows = number of columns =x

The number of children who will be left out = 500−x^2  .

The square root of 500 gives remainder as 16 that means, the square of 22 is less than 500 by 16

To make it a perfect square = 500−16=484 Therefore, number of children left will be 16

= 16 children would be left out in this arrangement​

(Hope this helps can I pls have brainlist (crown)☺️)

Answer:

110°

Step-by-step explanation:

Since all angles on a straight line add upto 180°,

Angle 1 + Angle 2 = 180

Angle 1 + 70 = 180

Angle 1 = 180 -70

Angle 1 = 110°

Hope this helps and be sure to have a wonderful time ahead at Brainly!

Feel free to mark this as brainliest :D

Answer:

13.125 inches

Step-by-step explanation:

5/8*21=13.125

Answer:

what’s the question?

Step-by-step explanation:

I linear pair are supplementary angles that are the adjacent angles when two lines cross. angle1 + angle7 = 180

Answer:

1. 15.333333

2.17.284392842389...

3.16 1/3

Step-by-step explanation:

Hope it helps

The three irrational numbers between 15 and 17 can be written as [tex]$\sqrt{231.44}\\[/tex], [tex]$\sqrt{244.57}\\[/tex], [tex]$\sqrt{277.67}\\[/tex].

An irrational number is a number that cannot be expressed as a fraction {p/q} for any integers {p} and {q}.

Given are irrational numbers between 15 and 17​.

Now, we can write -

A = 15² = 15 x 15 = 225

{A} = 225

B = 17² = 17 x 17 = 289

{B} = 289

The irrational numbers between 15 and 17 can be written as the square root of numbers between 225 and 289. So, we can write -

[tex]$\sqrt{231.44}\\[/tex]

[tex]$\sqrt{244.57}\\[/tex]

[tex]$\sqrt{277.67}\\[/tex]

Therefore, the three irrational numbers between 15 and 17 can be written as [tex]$\sqrt{231.44}\\[/tex], [tex]$\sqrt{244.57}\\[/tex], [tex]$\sqrt{277.67}\\[/tex].

To solve more questions on rational numbers, visit the link below-

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Answer:

A= 560mph, B=5,600miles in 10 hours

Step-by-step explanation:

If you divide 3,360 by 6 to get the mph for part a, you’ll then multiply that by 10 to get part b.

3,360 / 6= 560

560*10=5,600

Answer:

Width= 36 Length=78

Step-by-step explanation:

width= w

length = 2w+6

perimeter = 2(l+w)

228=2(2w+6+w)

228 = 2(3w+6)

228=6w+12

216 =6w

w=36

width= w=36 ft

length = 2w+6 = 2(36)+6=78 feet

Answer:

$5 per pound of grapes

Step-by-step explanation:

Because 2/5 a pound of grapes cost $2 you would add another $2 for 4/5 pound of grapes. Then, you would divide 2 by 1/2 to get $1.

So 1 pound of grapes = $5

Hope this helps!!    **please give me brainliest :)

The cost of per pound of grapes is $5.

A number juggling activity is determined by consolidating operands with one math administrator. The built-in functions ADD, SUBTRACT, DIVIDE, and MULTIPLY can also be used to specify arithmetic operations.

Both the plus sign and the minus sign can be used as operators with prefixes or infixes. Only infix operators can be used to represent all other arithmetic operators.

Given cost of 2/5 pound of grapes is $2

2/5p = 2

where p = pound

p = (2 x 5)/2

1p = 5

1 pound = $5

Therefore the 1 pound of grapes cost $5.

Learn more about arithmetic operations;

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Answer:

6719.1535

Step-by-step explanation:

take 65.2345 times 103.on a calculator and you get 6719.1535

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Division of 34 by 3 :

and remainder = 1

Answer:

(-1, -3) is in Quarter III on the coordinate grid.

If you want to find the reflection of it from the x-axis, the answer is (-1, 3) in Quarter II. But if you want to find the reflection of it from the y-axis, the answer is (1, -3) in Quarter IV.

Answer:

She bought 13 packages of shingles

mark brainliest:)

Answer:

X = 50

Step-by-step explanation:

Both equations TOGETHER equal 180 degrees so you write the equation:

2x + 30 + x = 180

(combine X's. Subtract 30 from both sides):

3x = 150

(divide both sides by 3)

X = 50

Divident = Divisior x Quotient + Remainder

(3x³ + 4x² - 2 + 7)  = (x + 2) x (3x² - 2x) + (4x - 5)

(3x³ + 4x² - 2 + 7)  =  (3x³ + 4x² - 2 + 7)

A division is a process of splitting a specific amount into equal parts. 

We have,

(3x³ + 4x² - 2 + 7) ÷ (x + 2)

We will divide using the long division method.

Divident = Divisior x Quotient + Remainder

Divident = (3x³ + 4x² - 2 + 7)

Divisor = x + 2

We will find the quotient and the remainder.

  x + 2 ) 3x³ + 4x² - 2 + 7 ( 3x² - 2x

             3x³ + 6x²                   [ sign is changed, 3x³ = -3x³ and 6x² = -6x²]

                    - 2x² - 5

                   - 2x² - 4x             [ sign is changed, -2x² = 2x² and -4x = 4x ]

                            4x - 5

Quotient = 3x² - 2x

Remainder = 4x - 5

Thus,

Divident = Divisior x Quotient + Remainder

(3x³ + 4x² - 2 + 7)  = (x + 2) x (3x² - 2x) + (4x - 5)

(3x³ + 4x² - 2 + 7)  =  (3x³ + 4x² - 2 + 7)

Learn more about division here:

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Answer:

The sum of a positive integer and a negative integer always being negative is FALSE. Say were adding these two integers together, one of which is postive and the other negative: -5 + 12

-5 + 12 is equal to 7, which is NOT a negative integer.

Answer:

converting to minutes

Step-by-step explanation:

3*60+20+40+2.75*60=405 min = 6 hours 45 minutes

Answer:

Large Fish: 237 lbs  Small Fish:79 lbs

Step-by-step explanation:

3792 divided by 12 for the weight, is 316 divide that by 4 to get the smaller fish's weight 79 pounds. multiply that by 3 to get the larger fish's weight 237 pounds.