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3 years ago

MULTIPLE CHOICE GEOMETRY QUESTION

Mathematics

2 answers:

Naddik [55]3 years ago

8 0

Answer:

It's actually the 3rd choice because AE is double DB so to find x we must double AE and set it equals to DB.

dmitriy555 [2]3 years ago

4 0

Answer:

Step-by-step explanation:

A would indicate that AE and BD are the same size, which they are not.

B would indicate that BD is larger than AE, which is not true.

C would indicate that AE is twice the size/ larger than BD, which is true, meaning that this statement is true.

D would also mean that AE and BD are the same size, which again is not true.

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lisha is making headbands using ribbon. she would like to make 12 head bands. Each one requires 15.5 inches of ribbon. She estim

katrin2010 [14]

No her estimate is to low because if you multiply 15.5 by 12 you get 186

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4 years ago

Read 2 more answers

Which statements are true based on the diagram? Check all that apply.

natulia [17]

Answer: where is statements

Step-by-step explanation:

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3 years ago

which of the following represents the equation of the line with an x- intercept of 6 that passes through the point (4,4)?

luda_lava [24]

Answer:

$y=-2x+12$

Step-by-step explanation:

To write the equation of a line, find the slope between two points. Substitute two points into the slope formula. If the equation has an x-intercept of 6 then the line passes through the point (6,0). Use (6,0) and (4,4) in the formula.

$m = \frac{y_2-y_1}{x_2-x_1} =\frac{4-0}{4-6} =\frac{4}{-2} =-2$

Since m = -2, substitute its value and the point (6,0) into the point slope form. Then simplify.

$y-y_1 = m(x-x_1)\\y-0 = -2 (x-6)\\y=-2x+12$

7 0

4 years ago

Describe how to compare the two ratios 5:8 to 7:9. Tell each step to set up the ratios, then explain what to do to be able to co

Lera25 [3.4K]

Step-by-step explanation:

The ratio's can be expressed as fractions and you may compare those.

5 : 8 = 5/8
7 : 9 = 7/9

In order to compare fractions you need to bring them into equal denominator.

8 and 9 have LCM of 8*9 = 72 since they have no common factors.

The equivalent fractions with common denominator are:

5/8 = 9*5/(9*8) = 45/72
7/9 = 8*7/(8*9) = 56/72

Now we can compare the fractions:

45/72 < 56/72, since 45 < 56

4 0

2 years ago

The cost of 3 notebooks and 4 pencils is $8.50. Determine the cost of one notebook and one pencil

Assoli18 [71]

Call the notebooks x, and the pencils y.
3x + 4y = $8.50 and 5x + 8y = $14.50 
Then just solve as simultaneous equations: 
3x + 4y = $8.50 
5x + 8y = $14.50 

5(3x + 4y = 8.5) 
3(5x + 8y = 14.5) 

15x + 20y = 42.5 
15x + 24y = 43.5 

Think: DASS (Different Add, Similar Subtract). 15x appears in both equations so subtract one equation from the other. Eassier to subtract (15x + 20y = 42.5) from (15x + 24y = 43.5) 

(15x + 24y = 43.5) - (15x + 20y = 42.5) = (4y = 1) which means y = 0.25. 

Then substitue into equation : 
15x + 20y = 42.5 
15x + 5 + 42.5 
15x = 42.5 - 5 = 37.5 
15x = 37.5 
x = 2.5 

15x + 24y = 43.5 
15(2.5) + 24(0.25) 
37.5 + 6 = 43.5 

So x (notebooks) are 2.5 ($2.50) each and y (pencils) are 0.25 ($0.25) each.

6 0

3 years ago