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nevsk [136]
3 years ago
11

(2a-5) + (3a+1) standard form

Mathematics
1 answer:
sergiy2304 [10]3 years ago
8 0

Answer:

5a - 4

Step-by-step explanation:

Simplify it

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Help plweaseeeee thanks ​
Sedaia [141]

Answer:

first triangle (to left) b=8, second one c=17

Step-by-step explanation:

for the first triangle (one to the left) the hypotenuse is 9, so let's use the pythagorean formula.

A^2   +  B^2  = C^2

^              ^          ^

^              ^         Hypotenuse

^        second side

first side

Substitute:

5^2 + b^2 = 9^2

SImplify:

25+b^2 = 81

Reduce:

b^2 = 64

Simplify:

b=8

In the second triangle, we are given 2 sides.

Let's do the same thing we did in the first one.

Givens:

A = 8

B = 15

Find:

C

Substitute:

8^2 + 15^2 = c^2

Simplify

64 + 225 = c^2

Reduce:

289 = c^2

Let's now square root both sides

square root of 289 is 17

so we are left with this:

c=17

Phew, you did it!

Hope this helped :))

4 0
3 years ago
Can someone help me?It's urgent and thank you!
Svetach [21]

Answer:

575.71

Step-by-step explanation:

Year 1: 960 x .88 (100%-12%)=844.80

Year 2: 844.80 x .88 =743.424

Year 3: 743.424x.88=654.21

Year 4: 654.21 x .88=575.71

5 0
3 years ago
Probablity of getting a number greater than 4 when a die is rolled one time
RoseWind [281]

Answer:

2/6

Step-by-step explanation:

There are 6 numbers on a regular die, and only 2 numbers that are greater than four that you could get, so the probability of getting a number greater then 4 would be 2/6

6 0
3 years ago
Read 2 more answers
The biology faculty at a college consists of 8 professors, 11 asscociate professors , 12 assistant professors and 4 instructors.
vodka [1.7K]

Answer:

0.343

Step-by-step explanation:

First, find the different ways one can chose a professor or instructor. In this case, there are 8 professors and 4 instructors. So there are a total of 12 ways you can choose a professor or instructor.

Second, you want to find the different ways you can choose any member of the faculty. In this example, since you are only choosing one person, then you just find the total number of people in the faculty, which is 8 + 11 + 12 + 4 = 35.

Third, all you do is divide the different ways you can get a professor or instructor by the total different ways you can choose. So it's 12/35, or 0.343.

7 0
3 years ago
F(x) = 4r +3. Find f (5).<br> f(5) =
sammy [17]

Answer:

idk wii

Step-by-step explanation:

4 0
3 years ago
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