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3 years ago

What is the value of x? Enter only the number in the box! Help Asap

Mathematics

1 answer:

vagabundo [1.1K]3 years ago

5 0

Answer:

x = 5

Step-by-step explanation:

90 - 55 = 35

8x - 5 = 35

+5 +5

8x = 40

x = 5

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Anastaziya [24]

Step-by-step explanation:

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2 years ago

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What are the corresponding steps used to find the product of (2x + 1)(x + 1)?

Margarita [4]

Answer:

(2 x +1) ( x + 1) = 2 x² + 3 x + 1

Step-by-step explanation:

The steops used to find the product of (2 x + 1) (x + 1) are

=( 2 x )× x + (2 x) × 1 + x + 1

= 2 x² + 2 x + x + 1

= 2 x² + 3 x + 1

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3 years ago

What is the area of the shaded triangle?

irinina [24]

Answer:

A = 1/2 × b × h

= (1/2 × 10 × 6)

= (5×6) metre sq.

= 30sq. metres

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BY GERALD GREAT.

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2 years ago

I need the steps to this question.

yanalaym [24]

im not sure but maybe look up how to calculate volume of a cone.. then go from there :D

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2 years ago

The length of a rectangular flower bed is 2ft longer than the width. If the area is 6ft, then what are the exact length and widt

Marizza181 [45]

Answer:

Exact dimensions:

$width=-1+\sqrt{7}$

$length=-1+\sqrt{7}+2$

$length=1+\sqrt{7}$

Approximate dimensions:

$width=1.64575ft$

$length=1.64575+2$

$length=3.64575ft$

Step-by-step explanation:

Let's assume width of rectangle is w ft

The length of a rectangular flower bed is 2ft longer than the width

so,

length =w+2

$L=w+2$

now, we can find area

$A=L\times W$

now, we can plug it

$A=(w+2)\times w$

$A=w^2+2w$

we are given area =6

so, we can set it equal

and then we can solve for w

$w^2+2w=6$

$w^2+2w-6=0$

we can use quadratic formula

$ax^2+bx+c=0$

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

now, we can compare and find a,b and c

a=1 , b=2 , c=-6

$w=\frac{-2\pm \sqrt{2^2-4\cdot \:1\left(-6\right)}}{2\cdot \:1}$

$w=-1+\sqrt{7},\:w=-1-\sqrt{7}$

we know that dimension can never be negative

so, we will only consider positive value

Exact dimensions:

$width=-1+\sqrt{7}$

$length=-1+\sqrt{7}+2$

$length=1+\sqrt{7}$

Approximate dimensions:

$width=1.64575ft$

$length=1.64575+2$

$length=3.64575ft$

7 0

3 years ago

What is the value of x? Enter only the number in the box! Help Asap​

What is the value of x? Enter only the number in the box! Help Asap