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3 years ago

Which of the following statements is false ?

Mathematics

1 answer:

zaharov [31]3 years ago

5 0

Answer:

The bases of an isosceles trapezoid are congruent is false.

Step-by-step explanation:

Let's analyse each option.

In a Rhombus, the diagonals are perpendicular at the point of intersection and bisect each other is true.

In isosceles trapezoid, the sides are congruent but not the bases. So, this incorrect!

The rectangle is an Equi-angular because all the angles are equal. So, this is true.

The base angles are congruent in isosceles trapezoid. So, this is true too.

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a rectangular parking lot has a lenth that is 6 yard graeter than the width the area of the parking lot is 160 ssquar yardsd. fi

Lubov Fominskaja [6]

Answer:

<h3><u>Required Answer</u><u>:</u><u>-</u></h3>

Let

the breadth =x

the length =6x

$\sf Area=160yard^2$

As we know that in a rectangle

${\boxed{\sf Area=lb}}$

Substitute the values

${:}\longrightarrow$ $\sf x\times 6x=160$

${:}\longrightarrow$ $\sf 6x^2=160$

${:}\longrightarrow$ $\sf x^2={\dfrac {160}{6}}$

${:}\longrightarrow$ $\sf x^2=26.6$

${:}\longrightarrow$ $\sf x=\sqrt {26.6}$

${:}\longrightarrow$ $\sf x=5.1yards$

Length=6\times 5.1=30.6yards
Breadth=5.1yards

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3 years ago

58.(A) (5pts)A certain type of bacteria, given favorable growth medium, quadruples in population every 6 hours. Given that there

Jet001 [13]

Answer:

157286400 bacteria

Step-by-step explanation:

We are given the following in the question:

The bacteria increases 4 times every 6 hours.

Initially there are 150 bacteria.

Thus, we can write the function for number of bacteria after x hours,

$f(x) = 150(4)^{\frac{x}{6}}$

We have to find the number of bacteria in 2.5 days.

1 day = 24 hours

Thus,

$2.5\text{ days} = 24\times 2.5 = 60\text{ hours}$

Putting x = 60 in the above equation, we get,

$f(60) = 150(4)^{\frac{60}{6}} = 150(4)^{10} = 157286400$

Thus, there will be 157286400 bacteria in two and a half days.

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