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3 years ago

What is root 3 x root 7?

Mathematics

1 answer:

bogdanovich [222]3 years ago

8 0

Answer:

$\sqrt{3} \times \sqrt{7} = \sqrt{21}$

I hope I helped you^_^

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The floor of a shed given on the right has an area of 85 square feet. The floor is in the shape of a rectangle whose length is 7

lesya692 [45]

Answer: Length = 10 feet and width = 8.5 feet.

Step-by-step explanation:

Let x be the width of the floor.

Then length of the floor = $2x-7$

Given : The area of the floor = 85 square feet

We know that the area of a rectangle is given by :-

$A=l\times w$

$\Rightarrow\ 85=(2x-7)\times x\\\\\Rightarrow\ 2x^2-7x-85=0\\\\\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\\Rightarrow\ x=\dfrac{7\pm\sqrt{49-4(2)(-85)}}{4}\\\\\Rightarrow\ x=\dfrac{7\pm27}{4}\\\\\Rightarrow\ x=\dfrac{17}{2}, -5$

But dimension cannot be negative

So, the width of the floor = $x=\dfrac{17}{2}=8.5\text{ feet}$

And the length of the floor = $2(8.5)-7=10\text{ feet}$

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4 years ago

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Subtract (3 + 2i) from (-9-81) 0 -17 – 51 0-6 – 67 0 -12 – 101 0 12 + 101

harkovskaia [24]

Answer:

-12 - 10i.

Step-by-step explanation:

-9 - 8i - (3 + 2i)

= -9 - 8i - 3 - 2i

= -12 - 10i.

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3 years ago

Which of the following describes the graph of y = StartRoot negative 4 x minus 36 EndRoot compared to the parent square root fun

RoseWind [281]

Answer:

stretched by a factor of 2, reflected over the y-axis, and translated 9 units left

Step-by-step explanation:

The given function is $y=\sqrt{-4x-36}$

We can rewrite this function by factoring -4 in the radicand to get:

$y=\sqrt{-4(x+9)}$

We further simplify the square root of 4 to get:

$y=2\sqrt{-(x+9)$

The parent function is $y=\sqrt{x}$

When we compare to the parent function, there is a stretch by a factor of 2, reflection over the y-axis, and translation 9 units left

The last option is correct

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marysya [2.9K]

Answer:

5.5 miles

Step-by-step explanation:

88 divided by 16 = 5.5

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0.62 as a percent (STEP BY STEP)

jolli1 [7]

Answer:

0.62 = 0.62 × 100/100 = (0.62 × 100)/100 = 62/100 = 62%;

In other words:

1) Multiply that number by 100.

2) Add the percent sign % to it.

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3 years ago

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