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Eva8 [605]
3 years ago
7

Help!! the second file are the answers

Mathematics
2 answers:
miss Akunina [59]3 years ago
8 0

Answer:

angle 1 and 2

angle 1 and 4

angle 3and 4

àngle 2and 3

supplementary angle which in which two angle sum is equals to 180 degree

Inessa [10]3 years ago
5 0

Answer:

<1 <2 and <1 <4

Step-by-step explanation:

A supplementary angle is a straight line with 180 degrees.

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5(x+4)-3x+3=5 solve for x
Elena L [17]

Answer: X= -9

Step-by-step explanation:

Multiply the 5 by x+4 then copy the -3x+3=5. It will be 5x+20-3x+3=5.

Then subtract or add the like terms

5x-3x and 20+3. It will be 2x+23=5

Then add -23 to both sides

It will be 2x+23-23=5-23 then solve it will be 2x=-18 then divide both sides by 2 to find the value of x

2x/2=-18/2 then the final answer is x= -9. I hope it help

4 0
2 years ago
∆ABC is similar to ∆DEF. The ratio of the perimeter of ∆ABC to the perimeter of ∆DEF is 1 : 10. The longest side of ∆DEF measure
exis [7]

Answer:

Part 1) The length of the longest side of ∆ABC  is 4 units

Part 2) The ratio of the area of ∆ABC to the area of ∆DEF is \frac{1}{100}

Step-by-step explanation:

Part 1) Find the length of the longest side of ∆ABC

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

The ratio of its perimeters is equal to the scale factor

Let

z ----> the scale factor

x ----> the length of the longest side of ∆ABC

y ----> the length of the longest side of ∆DEF

so

z=\frac{x}{y}

we have

z=\frac{1}{10}

y=40\ units

substitute

\frac{1}{10}=\frac{x}{40}

solve for x

x=(40)\frac{1}{10}

x=4\ units

therefore

The length of the longest side of ∆ABC  is 4 units

Part 2) Find the ratio of the area of ∆ABC to the area of ∆DEF

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

Let

z ----> the scale factor

x ----> the area of ∆ABC

y ----> the area of ∆DEF

z^{2}=\frac{x}{y}

we have

z=\frac{1}{10}

so

z^2=(\frac{1}{10})^2

z^2=\frac{1}{100}

therefore

The ratio of the area of ∆ABC to the area of ∆DEF is \frac{1}{100}

3 0
3 years ago
What are the vertex and x-intercepts of the graph of the function given below?<br> y = x^2 - 2x - 48
Over [174]

Answer:

vertex: (1, -49)

x-intercepts: (-6, 0) and (8, 0)

Step-by-step explanation:

I graphed it and looked for the needed information

here's the graph if you want it:

3 0
3 years ago
Read 2 more answers
A gardener is planting two types of trees:
melomori [17]

First convert the feet to inches:

3 feet= 36 in.; 4 feet=48 in.

Make an equation for each one:

Type A: h=36+15x

Type B: h=48+10x

Since the questions wants the heights to be equal, h=h so you can substitute so you have:

36+15x=48+10x

5x=12

x=2 2/5 years or 2.4 years


3 0
3 years ago
4(b+24)=(12b+8) pls help
vfiekz [6]

Answer:

b=11

Step-by-step explanation:

4(b+24)=(12b+8)

4b+96=12b+8

-4. -4

96=8b+8

-8. -8

88=8b

88÷8=11

8 0
3 years ago
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