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3 years ago

Which of the following is algebraically equivalent to the sum of and ?

Mathematics

1 answer:

Naddika [18.5K]3 years ago

4 0

What is the question marks value?

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Find the gradient of the line segment between the points (-2,3) and (-5,7)

Rudiy27

Answer:

$\frac{4}{ - 3}$

Procedures:

$\frac {y2 - y1}{x2 - x1}$

$\frac{7 - 3}{ - 5 - - 2}$

$\frac{7 - 3}{ - 5 + 2}$

$\frac{4}{ - 3}$

7 0

3 years ago

What is 58.65 with a 15% tip?

11111nata11111 [884]

X/58.65 = 15/100

(58.65*15)/100 = tip

6 0

2 years ago

State the exact value of tan(pi/2)

Vlad [161]

J is between H and K.if HJ =4t -15 ,JK=5t-6, and KH=15,find JK.

6 0

3 years ago

A magician has a collection of 52 cards, with 26 red and 26 black cards. Four of these cards are classified as 'special', and tw

Brums [2.3K]

Answer:

option B (28/52)

Step-by-step explanation:

from probability

P(A∪B)=P(A)+P(B)-P(A∩B)

where

P(A∪B) = probability that event A or B happen

P(A∩B) = probability that event A and B happen simultaneously

P(A) = probability that event A happen

P(B) = probability that event B happen

the probability that the card is special or red

P( special or red)= P(special) + P(red) - P( special and red)

since

P(special)= 4/52

P(red) = 26/52

P( special and red) = 2/52

therefore

P( special or red)= 4/52 + 26/52 - 2/52 = 28/52

P( special or red)= 28/52

(option B)

6 0

3 years ago

Can you Afford to Enlarge this?You each want to have a 3" X 5' picture ofprinted so that you canput it on your dartboard. It cos

Marizza181 [45]

Given:

$\text{ Dimension = 3}\times5$

Sol:

Area of picture is:

$\begin{gathered} =\text{ length}\times\text{ Width} \\ \\ =15 \end{gathered}$

If the cost $10 per square inch then price of 15 square inch is:

$\begin{gathered} =15\times10 \\ \\ =150 \end{gathered}$

If the quadruple of dimension that mean:

$\begin{gathered} \text{ l ength = 4 length} \\ \\ Width\text{ = 4 width} \end{gathered}$

So area is:

$\begin{gathered} A=4\text{ length}\times4\text{ Width} \\ \\ A=4(15) \\ \\ A=60 \end{gathered}$

So price is:

$\begin{gathered} =60\times10 \\ \\ =600 \end{gathered}$

3 0

1 year ago