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rusak2 [61]
3 years ago
13

In science class, Vicky did an experiment with an unknown solid. She started with 11 grams of the solid. During the experiment,

the change in the mass of the solid was –4 grams. What was the final mass of the solid To solve the problem, Jamal subtracted 11–(–4) and came up with an answer of 15 grams. Is Jamal correct? Why or why not?
Mathematics
1 answer:
tia_tia [17]3 years ago
7 0

Answer:

correct

Step-by-step explanation:

correct, because negative minus negative is actually positive.

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I need the answer ASAP
Ksenya-84 [330]

Answer: use google

Step-by-step explanation:

Because y e s and because your wasting peoples time

jk

3 0
3 years ago
Choose either yes or no to tell if each of the following represents 0.87.
enot [183]
You didnt attach an image lol
4 0
3 years ago
Multiply: (5t - 4)(4t + 5)
ANEK [815]

Answer:

A. 20t² + 9t - 20

Step-by-step explanation:

(5t × 4t) + (5t × 5) - (4 × 4t) - (4 × 5)

= 20t² + (25t - 16t) - 20

= <u>20t² + 9t - 20</u> (A)

<em>Hope </em><em>this </em><em>is </em><em>h</em><em>e</em><em>l</em><em>p</em><em>ful </em><em>and </em><em>useful </em><em>:</em><em>)</em>

5 0
4 years ago
The graph of f(x) = 2x + 4 shifts five units to the right when it is replaced with the graph of f(x) = 2x - k. What is the value
DIA [1.3K]
<h2>Answer</h2>

C.) 1

<h2>Explanation </h2>

Remember the rules for shifting functions:

f(x)+b shifts the function b units upward

f(x)-b shifts the function b units downward

f(x+b) shifts the function b units to the left

f(x-b) shifts the function b units to the right

Since we want tho shift f(x)=2^{x+4} 5 units to the right, we are using the rule: f(x-b) shifts the function b units to the right; in other words, we need to subtract 5 units to the input of the function:

f(x)=2^{x+4-5}

f(x)=2^{x-1}

But notice that there is already a negative sign in f(x)=2^{x-k}, so to get f(x)=2^{x-1}, k must be equal to positive 1.

7 0
3 years ago
Read 2 more answers
ACDF,BE is a mid segment what is x?
Ksenya-84 [330]

Answer:

X= 15

Step-by-step explanation:

the above equation will be used to determine the value of x.

the above equation will be used to determine the value of x.

6x-12= 2x+20+18

6x-2x = 20+12+18

4x= 60.

X= 60/4

X= 15

x = 15

7 0
4 years ago
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