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2 years ago

HELP i neee help i dont understand

Mathematics

1 answer:

Slav-nsk [51]2 years ago

4 0

Answer:

the picture isnt loading. it says error.

Step-by-step explanation:

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What is the value of the expression (2+4)3÷(26−4)?

My name is Ann [436]

9/11
Hope this helppp

8 0

3 years ago

2 people have calculators, one person starts at 100 and subtracts 7 each time. Another starts at zero and adds 3 each time. If t

zaharov [31]

Answer:

Yes, after 10 key presses, both will arrive at the number 30.

Step-by-step explanation:

The difference between the numbers on the calculators is reduced by 10 with each key press. After 10 key presses, the initial difference of 100 will be zero. After 10 key presses of (-7), the calculator starting at 100 will be ...

100 +10(-7) = 30

After 10 key presses of (+3), the calculator starting at 0 will be ...

0 +10(+3) = 30

Both calculators will show 30 after 10 key presses.

3 0

3 years ago

Read 2 more answers

2. The path of a high diver is given by y = + (2x2 – 9x – 56), where y is the height of the diver

timofeeve [1]

Answer:

The diver will be 8 feet from the end of the board when he hits the water.

Step-by-step explanation:

The diver hits the water when y = 0.

To find the distance, we have to find the values of x when y = 0.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = (x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this problem, we have that:

$y = 2x^{2} - 9x - 56$

$2x^{2} - 9x - 56 = 0$

$a = 2, b = -9, c = -56$

Then

$\bigtriangleup = b^{2} - 4ac = (-9)^{2} - 4*2(-56) = 529$

$x_{1} = \frac{-(-9) + \sqrt{529}}{2*2} = 8$

$x_{2} = \frac{-(-9) - \sqrt{529}}{2*2} = -3.5$

It is a horizontal distance, so the answer is a positive value.

The diver will be 8 feet from the end of the board when he hits the water.

7 0

3 years ago

Chocolate covered pretzels cost $8.50 a pound (lb). Nonpareils are $4.20 a pound (lb). Josh bought his mother 1/2 pound of the p

Komok [63]

1/2 of $8.50 is $4.25
1/4 of $4.20 is $1.05
$5.30 w/o taxes

$5.74 is your answer

5 0

3 years ago

Classify the triangle with the given side lengths as 1,13,13

Anuta_ua [19.1K]

Answer:

isosceles triangle

Step-by-step explanation:

6 0

3 years ago