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3 years ago

I need help on a and b

Mathematics

1 answer:

stepladder [879]3 years ago

8 0

Problem A

A rectangle has equal diagonals

So 9x + 20 = 10x + 8 Subtract 8 from both sides.

9x + 20 - 8 = 10x

9x + 12 = 10x Subtract 9x from both sides.

12 = 10x - 9x

12 = x Answer <<<<<

Problem B

The diagonals of a rhombus bisect the angle vertex that the diagonal is connect between. All that language says is that

2x + 15 = 5x + 3 Subtract 2x from both sides.

15 = 5x - 2x + 3

15 = 3x + 3 Subtract 3 from both sides.

15 - 3 = 3x

12 = 3x Divide by 3

12/3 = x

x = 4 <<<< Answer B

When x = 4 the two angles are equal.

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2 years ago

15. The height and yolume of a cylinder are 4cm and 616cm respectively. Calculate the diameter of the base. (take t = 27 쪽 A. 7c

irakobra [83]

Step-by-step explanation:

Given that,

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To find,

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Firstly we'll find the base radius of the cylinder.

$\longmapsto\rm{V_{(Cylinder)} = \pi r^2h}\\$

According to the question,

$\longmapsto\rm{616= \dfrac{22}{7} \times r^2 \times 4}\\$

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$\longmapsto\rm{4312 = 88 \times r^2 }\\$

$\longmapsto\rm{\cancel{\dfrac{4312}{88}} = r^2 }\\$

$\longmapsto\rm{49 = r^2 }\\$

$\longmapsto\rm{\sqrt{49} = r }\\$

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Now,

$\longmapsto\rm{Diameter = 2r }\\$

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The required answer is 14 cm.

4 0

3 years ago

Write the equation of the line in y=mx+b that passes through the points (5,10) and (6,12)

Damm [24]

Answer:

y = 2x + 0 or y = 2x

Step-by-step explanation:

use slope-intercept form $\frac{y2 - y1}{x2 - x1}$

12 - 10 = 2

6 - 5 = 1

m value = 2/1 = 2

y=2x+b

to find b plug one of the points in for x and y

Example: 10 = 2(5) + b

solve equation

10 = 10 + b

subtract 10 from both sides

0 = b

Equation of line equals y=2x+0 or simply just y=2x

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2 years ago

PLEASE ANSWER ASAP! WILL GIVE BRAINLIEST+12 POINTS!

VikaD [51]

Answer:

a¹⁰

Step-by-step explanation:

$(x^{m} )^{n} =x^{mn}$

So here we have (a⁵)², meaning we need to multiply the exponents to get a¹⁰

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3 years ago

What property is 5+0=5

jok3333 [9.3K]

5+0=5 is the property of zero
The property of zero is when u add 0 to n so that n stays n

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3 years ago

Read 2 more answers