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3 years ago

6

Mathematics

1 answer:

Stolb23 [73]3 years ago

8 0

Answer:

Step-by-step explanation:

Area of a square = s² ; where s = side length

Area of square = 88 unit²

88 = s²

Square root of both sides

√88 = s

9.38 = s

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Find the value of x that makes m || n

REY [17]

answer a)

soln,

or, 4x + 84 = 180° [being co-interrior angle]

or, 4x = 180 - 84

or, 4x = 96

or, x = 96/4

x = 24

answer b)

soln,

or, 2x + 5 = 135° [being corresponding angle]

or, 2x = 135 - 5

or,2x = 130

or, x = 130/2

x = 65°

Step-by-step explanation:

well if it's helpful mark me as brainlest please

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2 years ago

Use Euler’s Formula to find the missing number. Faces: 15 Vertices: 11 Edges? a. 27 b. 24 c. 25 d. 23

eimsori [14]

Euler's formula for Vertices, Edges and faces is V-E+F = 2

Replace the letters with the given information and solve for the missing one.

From the problem V ( Vertices) = 11 and F (faces) = 15.

11 - E + 15 = 2

11 + 15 = 26

26 - E = 2

E = 26-2

E = 24

The answer is b. 24

7 0

3 years ago

Someone came into my store and stole $100 from the register came back five minutes later with the same hundred dollars for $70 w

mina [271]

$200
They first took $100 then came back and bought $70 worth of merchandise and paid with the 100 dollars they stole, in turn you gave them change of 30 dollars. So you are now short $130 in the register and 70 in merchandise for a total of $200.

8 0

3 years ago

Read 2 more answers

What is the equation of this trend line?<br> RE<br> Enter your answers b y filling in the boxes.

Deffense [45]

Answer:

$K=-2J+28$

Step-by-step explanation:

step 1

Find the slope of the line

The formula to calculate the slope between two points is equal to

$m=\frac{k2-k1}{j2-j1}$

we have the points

(2,24) and (6,16)

substitute in the formula

$m=\frac{16-24}{6-2}$

$m=\frac{-8}{4}$

$m-2$

step 2

Find the equation of the line in slope intercept form

$K=mJ+b$

we have

$m=-2$

$b=28$ ----> the k-intercept is the point (0,28) see the graph

substitute

$K=-2J+28$

7 0

3 years ago

Anthony, Brian and Chris are hired for a job. If Anthony and Brian are working together they will finish the job in minutes. If

Firlakuza [10]

Answer:

12.5

Step-by-step explanation:

Let individual time taken by Anthony, Brian and Chris = t1 , t2 , t3 respectively

So, total time taken by A & B = 1 / t1 + 1 / t2 , lets suppose = 10 {i}

Total time taken by A & C = 1 / t1 + 1 / t3 , lets suppose = 15 {ii}

Total time taken by B & C = 1 / t2 + 1 / t3 , lets suppose = 20 {iii}

From {i} , 1 / t2 = 10 - 1 / t1

From {ii} 1 / t1 = 15 - 1 / t3

By above two eqtns , 1 / t2 = 10 - (15 - 1 / t3)

1 / t2 = 1 / t3 - 5

Putting in {iii} , 1 / t3 - 5 + 1 / t3 = 20

2 / t3 = 25

t3 = 12.5

7 0

3 years ago