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Bogdan [553]
4 years ago
12

I dont understand it :/​

Mathematics
1 answer:
photoshop1234 [79]4 years ago
4 0

Step-by-step explanation:

It's telling you to plug in the numbers inside the parenthesis as x

Example: F(-1)= 2(-1)^3 -3(-1)^2 +7

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A triangle has side lengths of 15, 20, and 25. What type of triangle is it?
lyudmila [28]
 <span>Its a RIGHT ANGLED TRIANGLE. 

GIVEN: 
hypo=25 
opposite and adjacent=15 and 20. 

FORMULA: 
hypotenuse^2 =opposite side^2 + adjacent side^2 
25^2=15^2+20^2 
625=225+400 
400+225=625 

so its a right angled triangle.................... 

understand??</span>
3 0
3 years ago
Read 2 more answers
NEED HELP ASAP!!!!!!!!!!!!!!!!!! I'll give Brainliest to whoever can answer all questions :)))
miv72 [106K]

Answer:

the first question would be y= -1/4x + 8

the second one would be 3x + 5y = -65

the third one would be y= -2

and last but not least... the last one would be b.

Step-by-step explanation:

8 0
3 years ago
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Tim spent half of his my allowance going to the movies. He washed the family car and earned 6 dollars. What was his weekly allow
puteri [66]
17 - 6 = 11
11 * 2 = 22
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4 0
3 years ago
Find the lengths of the segments with variable expressions
nlexa [21]

Answer:

EF = 7 units

AD =  3 units

BC =  11 units

Step-by-step explanation:

Since it is an isosceles trapezoid and the midsegment is x, the sum of the bases divided by 1/2 is the value of the midsegment, x.

x = 1/2(x-4 + 2x-3)

x = 1/2x - 2 + x - 1 1/2

x = 1 1/2 x - 3.5

-1/2 x = -3.5

x = 7 units

EF = 7 units

AD = 7-4 = 3 units

BC = 2(7) - 3 = 11 units

5 0
3 years ago
6. A house painter mixed 2 gal of white paint for every 8 gal of red paint to make pink paint. Which ratio of white paint to red
Lelu [443]

Answer:

c

Step-by-step explanation:

the ratio is 2/8.

2/8 = 1/4.

a)

8/20 = 2/5 is NOT equal to 1/4.

b)

12/45 = 4/15 is NOT equal to 1/4

c)

6/24 = 1/4 perfect

d)

2/40 = 1/20 is NOT equal to 1/4

5 0
2 years ago
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