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4 years ago

What is the length of side A, in centimeters, on the enlarged trapezoid? 4 6 12 20

Mathematics

2 answers:

Illusion [34]4 years ago

7 0

Since all of the other sides were multiplied by four, therefore you’d multiply side A by four as well.

So,

The length of side A is 4 centimeters.

Kazeer [188]4 years ago

4 0

Answer:

Step-by-step explanation:

given the fact that the other side measures all multiply by 4 when they are enlarged in the second shape, we know that the scale factor is 4. 3 enlarged by a scale factor of 4 = 12

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I really need help! This is last minute and its 1 am. I'm tired so I'm going to leave it to you guys to solve my problems and pr

Illusion [34]

Answer:

<h2><u>question 1</u></h2>

$n^{2} - 20n -96 = 0$

use product and sum method

product = -96

sum = -20

numbers needed = ( -24 , 4)

n - 24 = 0

n + 4 = 0

hence <u>n = 24 and n = -4 </u>

<u></u>

<h2><u>Question 2 </u></h2>

in the form $ax^{2} +bx +c = 0$

= $x^{2} +12x - 48$

make use of the formula :

$\frac{-b+-\sqrt{b^{2} -4ac} }{2a}$

replace values to make 2 equations :

1. $\frac{-12+\sqrt{12^{2} -4*1*-48} }{2*1}$ = 3.17

2. $\frac{-12-\sqrt{12^{2} -4*1*-48} }{2*1}$ = -15.2

hence <u>x = 3.17 and x = -15.2</u>

<u />

<h2><u>Question 3 </u></h2>

use product and sum method

product = 40

sum = -14

numbers needed = (-10 , -4)

x - 10 = 0

x - 4 = 0

hence<u> x = 10 and x = 4</u>

<u />

<h2><u>Question 4 </u></h2>

in the form $ax^{2} +bx +c = 0$

this becomes $5b^{2} -20b-18-7$

= $5b^{2} -20b-25$

can simplify by 5

= $b^{2} -4b-5 =0\\$

use product and sum method

product = -5

sum = -4

numbers needed (-5 , 1)

b-5 = 0

b + 1 = 0

hence <u>b = 5 and b = -1</u>

5 0

4 years ago

Read 2 more answers

Help me please I'm stuck!

alisha [4.7K]

My teachers taught me a trick make a C from the top to bottom

so 5 1/2 would be

5 times 1 + 2 so denominator stays the same so it 7/2.

bottom one is 22/4

make a C from top to bottom and multiply outer number to top add the bottom to that then keep denominator the same.

Hope i helped.

3 0

3 years ago

A rectangular garden has an area of 37 square miles. If its length is 28 miles, what is its width?

Semmy [17]

Answer:

$\frac{37}{28}$ miles

Step-by-step explanation:

Use the area formula, A = lw, where l is the length and w is the width.

Plug in the area and length into the formula, and solve for w:

A = lw

37 = 28w

37/28 = w

So, as a fraction, the width of the garden is $\frac{37}{28}$ miles

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3 years ago

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PLEASE HELP ME!!! <br> Solve in substitution form step by step please

romanna [79]

Answer:

3. (3,-4)

Step-by-step explanation:

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3 years ago

The area of a triangle is 92 square inches. The base is 23 inches. What is the height in inches? Do not include units in your an

mihalych1998 [28]

8 inches is the answer first you divide 23 by 2 which gives you 11.5 then 92÷11.5=8 you do it this way because of the formula you use for area with a triangle 1/2 base times height

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3 years ago