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zimovet [89]
3 years ago
15

Hellllpppp! Please! I'm so tired I've been studying for hours! I don't think I can go on any longer!​

Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

23.) 120

24.) 62

25.) 84

26.) 64

27.) 121

28.) 112

29.) 65

30.) 78

Step-by-step explanation:

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8 15 27 blank 20 find the blank number​
777dan777 [17]

Answer:

the blank number is 23

Step-by-step explanation:

8, 15, 27, x, 20

common ratio, r= T2÷ T1= T3÷ T2

= 15 ÷ 8 =27÷ 15

= 1.8 = 1.8

20 ÷ x = x ÷ 27

( cross multiply,)

x²= 540

x =√540

x = 23.24

x = 23

6 0
3 years ago
Factor the polynomial completely<br> 45x3 + 243x2 + 340x + 100
lozanna [386]
This can't be factored with rational numbers. 
3 0
3 years ago
Read 2 more answers
LINEAR EQUATIONS HELP ASAP
Stella [2.4K]

Answer:

-1/5

Step-by-step explanation:

(10 ,9)  .....(40 , 3)

(9-3)/(10-40)=6/-30=-1/5

3 0
3 years ago
Read 2 more answers
If 50% of a number is 170 and 85% of the same number is 289, find 35% of that<br> number.
kupik [55]

The answer to it is 119

since 50% of the number is 170 just multiply 170 by 2 to get 340, then find 35% of 340. 10% of 340 is 34, multiply 34 by 3.5 to get 119.

4 0
1 year ago
Is domain of f(x,y) = 1 + (4 -y^2)^1/2 open, closed or neither<br><br> is it bounded or unbounded?
omeli [17]

Answer:

Closed and Bounded.

Step-by-step explanation:

Hi there!

1) Let's start by finding the values in which the function is defined. Remember that this can be rewritten:

f(x,y) = 1 + (4 -y^2)^{\frac{1}{2}} \:id\:est\:f(x,y)=1+\sqrt{(4 -y^2)}

Since every quadratic root are defined for values \geq 0  then, this help us to understand that we need calculate what interval this Domain is:

4-y^{2} \geq 0\\4-y^{2}-4\geq -4\\-y^{2}\geq-4 \\y^{2}\leq4\\-2\leq y\leq 2

D=[-2,2]

2) Graphically speaking, the domain is closed. For the values -2 and 2 are included, and bounded.

Bounded functions have all of their points contained by some circle origin centered. Check it out below.

6 0
3 years ago
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