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2 years ago

Please help it is due in 10 minutes

Mathematics

2 answers:

frutty [35]2 years ago

7 0

Answer:

Look below :)

Step-by-step explanation:

1.x=4

2.×=1

3.x=3

4.x=5

5.x=7

6.x=-0.75

7.x=6

8.x=5

Hope this helps :)

Otrada [13]2 years ago

5 0

Answer:

1. X= 4

2. X= 1

3. X= 3

4. X= 5

5. X= 7

6. X= -3/4

7. X= 6

8. X= 5

Step-by-step explanation:

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dexar [7]

$235, I believe. 240-5=235.

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3 years ago

Kayla wants to find the width, AB, of a river. She walks along the edge of the river 65 ft and marks point C. Then she walks 25

AlladinOne [14]

Answer:

Part A) The triangles ABC and EDC are similar by AAA, because the three internal angles are equal in both triangles

Part B) The width of the river is about $39\ ft$

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is equal and its corresponding angles are congruent

Part A) we know that

In this problem , triangles ABC and CDE are similar by AAA, because its corresponding angles are congruent

m<DCE=m<ACB -----> by vertical angles

m<EDC=m<ABC -----> is a right angle

m<DEC=m<CAB -----> the sum of the internal angles must be equal to 180 degrees

Part B) we know that

The triangles ABC and EDC are similar -------> see Part A

therefore

$\frac{BC}{DC}=\frac{AB}{DE}$

substitute the values and solve for AB

$\frac{65}{25}=\frac{AB}{15}$

$AB=15*(\frac{65}{25})=39\ ft$

8 0

2 years ago

Subject: Pre-algebra

charle [14.2K]

Answer:

1: true

2: false

Step-by-step explanation:

1: congruent = equal while supplementary = 180-degrees

2: congruent angles= vertical angles, corresponding angles, alternate interior angles, & alternate exterior angles

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2 years ago

Read 2 more answers

The graph shows the function y=3x-1. What are the cordinates of intercepts

scZoUnD [109]

Answer:

$y \: intercept : when \: x = 0 \\ y = (3 \times 0) - 1 = - 1 \\ = > (0, - 1) \\ x \: intercept : when \: y = 0 \\ 0 = 3x - 1 \\ x = \frac{1}{3} \\ = > ( \frac{1}{3} ,0) \\ intercepts : (0, - 1) \: and \: ( \frac{1}{3} ,0)$

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2 years ago

Forty children from an after-school club went to the matinee.This is 25% of the children in the club.How many children are in th

Korvikt [17]

25% = 0.25

40 / 0.25 = 160

40 is 25% of 160.

There are 160 children in the club.

7 0

2 years ago

Please help it is due in 10 minutes​

Please help it is due in 10 minutes