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3 years ago

How do I do it! Answer pls givin the brainliest

Mathematics

2 answers:

Naily [24]3 years ago

5 0

$20 bill + sales tax (15% or 0.15 times 20) + tip (again 15% or 0.15 times 20) = the total bill she pays.

20 + (0.15 x 20 = 3) + (0.15 x 20 = 3). Simplify to 20 + 3 + 3 = 26.

She pays $26.

kap26 [50]3 years ago

3 0

She would pay $23.00 because...

15% of 20 = 3

20 + 3 = 23

Answer : $23.00

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If y=2cos(x/2) then d^2y/dx^2 =

Sladkaya [172]

We first need dy/dx.

dy/dx = -2sin(x/2)(1/2)

dy/dx = -sin(x/2)

We now find d^2y/dx^2.

d^2y/dx^2 = -cos(x/2)(1/2)

d^2y/dx^2 = -(1/2)cos(x/2)

5 0

4 years ago

Solve this equation please-<br><br> 5³ + (-9) (2) ÷ 6

valentina_108 [34]

<h2>Answer:</h2><h2>122</h2>

Step-by-step explanation:

<h2> That one was easy it is right just did it on edgenuity</h2>

6 0

3 years ago

Read 2 more answers

VARVARA [1.3K]

<h3>Solution</h3>

$\begin{aligned}\frac{1}{h-5}+\frac{2}{h+5}&=\frac{16}{h^2-25}\\\frac{(h+5)+2(h-5)}{(h-5)(h+5)}&=\frac{16}{h^2-25}\\\frac{h+2h+5-10}{h^2-25}&=\frac{16}{h^2-25}\\\frac{3h-5}{\cancel{h^2-25}}&=\frac{16}{\cancel{h^2-25}}\\3h-5&=16\\3h&=16+5\\3h&=21\\h&=\frac{21}{3}\\h&=7\end{aligned}$

3 0

3 years ago

Write each improper fraction as a mixed number in simplest form 20/15=

slavikrds [6]

20/15=1 1/3

Explanation:

20/15= (2 2*5) / (3*5)
=2 2/3= 4/3

4/3= (1*3+1) / 3= 1+ 1/3= 1 1/3

Final answer written three ways:

Positive improper fraction:
20/15= 4/3

Mixed number:
20/15 1 1/3

Decimal number:
20/15= 1.333333

4 0

4 years ago

Determine the length of the line segment shown. line segment from negative 10 comma 9 to 5 comma negative 1 4 units 18 units 19

user100 [1]

The length of the line segment is (b) 18 units

<h3>How to determine the length of the line segment?</h3>

The line segment is given as

ine segment from negative 10 comma 9 to 5 comma negative 1

This can be rewritten as

line segment from (-10, 9) to (5, -1)

The length of the line segment is then calculated using the following distance formula

distance = √[(x₂ - x₁)² + (y₂ - y₁)²]

Where

(x, y) = (-10, 9) to (5, -1)

Substitute the known values in the above equation, so, we have the following representation

Length = √[(-10 - 5)² + (9 + 1)²]

Evaluate

Length = 18

Hence, the length is 18 units