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3 years ago

Which types of quadrilaterals have four congruent sides?

2 answers:

4 0

The correct answer is A - rhombus and square.

B is incorrect because a parallelogram doesn't necessarily have congruent sides, it just has sides that are parallel.
C is incorrect because a rectangle has a pair of sides longer than the other pair of sides.
D is wrong because of the reason listed under C.

Hope this helps.

vivado [14]3 years ago

3 0

A RHOMBUS and SQUARE are both quadrilaterals that have four congruent sides. By definition, parallelograms have to have two sets of congruent sides, and so do rectangles. Though parallelograms can have four congruent sides, they are not always; rectangles never have four congruent sides.

Answer: rhombus and square

Hope this helps!

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Does the choice of the base affect the area of a triangle?

Illusion [34]

Answer:

this base of s triangle is the area so me answer would have to be yes

Step-by-step explanation:

6 0

3 years ago

In ogilvie's class of 40 student 24 student report that English is their favorite class and 40 percent of the students report th

Elina [12.6K]

Answer: English is the preferred one.

Step-by-step explanation:

When you are dealing with percentage problems you just have to do a simple rule of three to answer the question, we have that our 100% is the total number of students:40, and 40% of them report that keyboarding is their favorite class, while 24 students say that English is their favorite class, now we just have to convert:

We clear the X and our function would look like this:

Now we know that 16 kids prefer keyboarding over the 24 that prefer English, since there are more kids that prefer English that is the favorite class.

5 0

3 years ago

3x^2-x=10 Find factors Determine zeros

Sophie [7]

Factors are (3x + 5) and (x - 2). Zeros are -5/3 and 2.

Step-by-step explanation:

Step 1: Given quadratic equation 3x² - x = 10 ⇒ 3x² - x - 10 = 0

Step 2: Use factoring method (product and sum rule) to find factors and zeros. So the equation can be written as below.

⇒ 3x² - 6x + 5x - 10 = 0

⇒ 3x(x - 2) + 5(x - 2) = 0

⇒ (3x + 5)(x - 2) = 0 These are the factors of the equation.

Step 3: Find zeros by equating the factors to 0.

⇒ 3x + 5 = 0 and x - 2 = 0

⇒ x = -5/3 and 2

7 0

3 years ago

How to solve for a and b

murzikaleks [220]

$\bf \begin{cases}
3=a\cdot b^0\\
75=a\cdot b^2
\end{cases}\qquad b^0=1\implies 
\begin{cases}
3=a\cdot 1\implies 3=a\\
----------\\
75=a\cdot b^2\implies 75=3\cdot b^2\\\\
\frac{75}{3}=b^2\implies 25=b^2\\\\
\pm \sqrt{25}=b\implies \pm 5 = b
\end{cases}$

recall, anything raised to the 0, zero, power, is 1, with the sole exception of 0

8 0

4 years ago

a football match,the ratio of children to adults is 2:7.there are 2700 people int he crowd. each adult ticket is £8 each child t

marusya05 [52]

Step-by-step explanation:

since the ratio of children to adult is 2:7,

2+7 = 9

number of children would be

(2 × 2700)/9 = 600 children in the crowd

number of adults would be

(7 × 2700)/9 = 2100 adults in the crowd

So, if a ticket costs £8 per adults, total cash made from adult

= 8 × 2100 = £16800

if a ticket costs £(8 - 3) per children, total cash made from children

= 5 × 600 = £3000

total money made = £(16800 + 3000)

= £19800

7 0

3 years ago