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3 years ago

Find the exact length of the third slide 4 and 3

Mathematics

2 answers:

Mariulka [41]3 years ago

8 0

Answer:

Step-by-step explanation:

4^2+3^2=c^2

16+9=25

square root of 25 is 5

Lena [83]3 years ago

4 0

Answer:

Step-by-step explanation:

$a^{2} +b^{2} =c^{2}$

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All of the following are equivalent except _____.

lianna [129]

Answer:

-5(x - 1)

Step-by-step explanation:

you would get -5x - 5 if you solved it

8 0

3 years ago

Read 2 more answers

Consider the following expression and determine which statements are true.

Masja [62]

Answer:

m+5nx(9-p)-6-2r

The answer is b and d

Step-by-step explanation:

Hopefully this helped, if not HMU and I will gt you a better answer.

<em>-have a great day! :)</em>

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5 0

3 years ago

Which two values of X are roots of the polynomial below?

VARVARA [1.3K]

Answer:

C and D

Step-by-step explanation:

As determinant of this quadratic equation is given by-

(-b±√(b²-4ac))/2a

7 0

3 years ago

The altitude of a triangle is increasing at a rate of 1.5 1.5 centimeters/minute while the area of the triangle is increasing at

seraphim [82]

Answer:

The base reduces at 3.75cm/min

Step-by-step explanation:

Given

Let

$h \to altitude$

$b \to base$

$A \to Area$

So:

$\frac{dh}{dt} = 1.5cm/min$

$\frac{dA}{dt} = 1.5^2cm/min$

The area of a triangle is:

$A = \frac{1}{2}bh$

Calculate b when $A =88cm^2; h =8cm$

$A = \frac{1}{2}bh$

$88=\frac{1}{2} * b * 8$

$88 =b * 4$

Solve for b

$b = 88/4$

$b = 22$

We have:

$A = \frac{1}{2}bh$

Differentiate with respect to time

$\frac{dA}{dt} =\frac{1}{2}(h\frac{db}{dt} + b\frac{dh}{dt})$

Substitute the following values in the above equation

$\frac{dh}{dt} = 1.5cm/min$ $\frac{dA}{dt} = 1.5^2cm/min$ $b = 22$ $h = 8$

$1.5 = \frac{1}{2}(8 * \frac{db}{dt} + 22 * 1.5)$

Multiply both sides by 2

$3 = 8 * \frac{db}{dt} + 22 * 1.5$

$3 = 8 * \frac{db}{dt} + 33$

Collect like terms

$8 * \frac{db}{dt} = 3 -33$

$8 * \frac{db}{dt} = -30$

Divide both sides by 8

$\frac{db}{dt} = -\frac{30}{8}$

$\frac{db}{dt} = -3.75$

4 0

3 years ago

I can't seem to solve this problem. I have to make an equation to solve this but i don't know how to make an equation for this p

soldier1979 [14.2K]

Well each ladder has 30, and then it depends on how each person climbs their ladder. One climb at the rate of -2 per second. The other climb at the rate of 1 per second. Just x is equal to 1, that's why I didnt put 1x.
Equation: 30 + -2x = 30 + x

7 0

3 years ago