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nalin [4]
3 years ago
15

Help again 14 more questions

Mathematics
1 answer:
MArishka [77]3 years ago
5 0

Answer:

A certain element has 25 protons.

Step-by-step explanation:

Please mark brainliest

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Help please !!! ❗️❗️❗️❗️❗️❗️
Crazy boy [7]

Step-by-step explanation:

1. f(x) = 12x + 1

f(-2) = 12(-2) + 1 = -23

f(0) = 12(0) + 1 = 1

f(3) = 12(3) + 1 = 37

2. p(x) = -8x - 2

p(-2) = -8(-2) - 2 = 14

p(0) = -8(0) - 2 = -2

p(3) = -8(3) - 2 = -26

3. m(x) = -6.5x

m(-2) = -6.5(-2) = 13

m(0) = -6.5(0) = 0

m(3) = -6.5(3) = -19.5

4. s(x) = ⅖x + 3

s(-2) = ⅖(-2) + 3 = -⅘ + 3 = 11/5

s(0) = ⅖(0) + 3 = 3

s(3) = ⅖(3) + 3 = 6/5 + 3 = 21/5

5. h(x) = ¾x - 6

h(-2) = ¾(-2) - 6 = -6/4 - 6 = -30/4

h(0) = ¾(0) - 6 = -6

h(3) = ¾(3) - 6 = 9/4 - 6 = -15/4

8 0
3 years ago
If ƒ
SSSSS [86.1K]
(B)
if <em>f</em>(a) = K, then that means <em>f </em>sends (a) to (K). 
the inverse function, <em>f</em>-1, goes back where you started, so <em>f</em>-1 <em />sends (K) to (a). 
<em>f</em>-1(K) = a. 
8 0
3 years ago
Read 2 more answers
2+2X=?<br> when X = 2+5Y<br> when Y = 5*Z^2<br> when Z = 2
Alchen [17]

Since you know Z = 2, you can plug it into:

Y = 5 · Z²

Y = 5 · (2)²

Y = 5 · 4

Y = 20

Now that you know Y = 20, you can plug it into:

X = 2 + 5Y

X = 2 + 5(20)

X = 2 + 100

X = 102

Now that you have X, plug it into "2+2X=?"

2 + 2x = ?

2 + 2(102) = ?

2 + 204 = ?

206 = ?

4 0
4 years ago
Read 2 more answers
Which is the r- value of the following data to three decimals places?
lyudmila [28]

Answer:

Choice D is correct;

r = -0.953

Step-by-step explanation:

r-value refers to the correlation coefficient between two sets of data and is use to assess the degree of association between two variables.

The value can be calculate manually or by use of software. In this case I employed the correlation function in Ms. Excel an the output is shown in the attachment below.

The function to use is; = correl

3 0
3 years ago
12. Jessie drove 30 miles in 55 minutes. If she continues at the same speed, how many
pentagon [3]
The answer is 92/8/11 or 1020/11

Reason: 170/55=34/11

34/11x30= 92/8/11 or 1020/11
4 0
4 years ago
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