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IrinaK [193]
4 years ago
6

Which of the following is a area of the special trepezoid if ab=19,cd=19 and the height is 14

Mathematics
1 answer:
tankabanditka [31]4 years ago
5 0

As, Opposite side of Special trapezoid is equal.So, it will be a Parallelogram.

ab=c d= 19 units

Height of Trapezoid = 14 units

Area of Trapezoid =  \frac{1}{2} \times {\text{Sum of parallel sides}} \times {\text{Perpendicular Distance between them}}

  =\frac{1}{2}\times (19+19) \times 14\\\\ =\frac{1}{2} \times 38 \times 14\\\\ = 19 \times 14\\\\= 266

So, Area of Trapezoid = 266 square units

You, can use the formula for finding the area of parallelogram,which is = Base on which perpendicular is drawn × Length of Altitude

= 19 × 14

= 266 square units

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4th grade math question Joey walk 333 ft how many yards did Joey walk? At 5 yds vs 15 ft
icang [17]

111 yards

Explanation

Step 1

to solve this we need to know the equivalence

\begin{gathered} 3\text{ ft= 1 yd} \\ 3\text{ ft}\leftrightarrow1\text{ yd} \end{gathered}

Now, we can apply a rule of three

let x represents the number of yards in 333 ft, so

so

\begin{gathered} if \\ 3\text{ ft}\rightarrow\text{ 1 yd} \\ \text{then} \\ 33\text{ ft}\rightarrow x \end{gathered}

as the ratio is the same, we have a proportion

\begin{gathered} \frac{3\text{ ft}}{1\text{ yd}}=\frac{33\text{ ft}}{x\text{ yd}} \\ \frac{3}{1}=\frac{33}{x} \end{gathered}

Step 2

now, solve for x

\begin{gathered} \frac{3}{1}=\frac{333}{x} \\ \text{cross multiply} \\ 3\cdot x=333\cdot1 \\ 3x=333 \\ \text{divide both } \\ \frac{3x}{3}=\frac{333}{3} \\ x=111 \end{gathered}

so, the answer is 111 yards

I hope this helps you

8 0
1 year ago
(y +12)<br> (y - 18)<br> (x)<br> (z)<br> x=<br> y =<br> Z =
Wittaler [7]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Foil (x+9)(3x-4) I have been stuck for ever
Bess [88]

Answer:

3x^2+23x-36

Step-by-step explanation:

The foil method is used when multiplying 2 binomials. One is (x+9) and another is (3x-4). The steps of FOIL are:

  1. Multiply the first terms
  2. Multiply the outer terms
  3. Multiply the inner terms
  4. Multiply the last terms
  5. Combine like terms

Let's do the steps on our problem:

1. multiply x and 3x. So we have x * 3x = 3x^2

2. multiply x and -4. So we have x * -4 = -4x

3. Multiply 9 and 3x. So we have 27x

4. Multiply 9 and -4. So we have -36

Listing the terms, we have:  3x^2 -4x + 27x - 36

We combine like terms and have:  3x^2 + 23x - 36

That's our answer.

4 0
4 years ago
Someone please help thanks !
Rama09 [41]

Answer:

sorry vud

Step-by-step explanation:

I don't know

5 0
4 years ago
Find the distance beyween S(6, -3) and T (7, -2)
s344n2d4d5 [400]

Answer:

d=\sqrt{2}

Step-by-step explanation:

Distance Formula: d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Simply plug in your 2 coordinates into the distance formula to find distance <em>d</em>:d=\sqrt{(7-6)^2+(-2-(-3))^2}

d=\sqrt{(1)^2+(-2+3)^2}

d=\sqrt{1+(1)^2}

d=\sqrt{1+1}

d=\sqrt{2}

3 0
3 years ago
Read 2 more answers
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