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Mice21 [21]
3 years ago
13

Help me please like I’m really dumb..

Mathematics
2 answers:
Ierofanga [76]3 years ago
8 0

Answer:

900

Step-by-step explanation:

First divide 100 by 5, then add 25 to that which would be 20+25=45, then divide 45 by 5, then multiply 10 by 10 which is 100 so then multiply 9 by 100 which is 900.

ikadub [295]3 years ago
7 0
Answer is 900. 25+20= 45/5= 9*100= 900
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14.<br> -2(y – 4) + 8y +2 &lt; 16
GREYUIT [131]

Answer:

y<1

Step-by-step explanation:

-2(y-4)+8y+2<16

-2y+8+8y+2<16

6y+10<16

6y<16-10

6y<6

y<6/6

y<1

8 0
3 years ago
PLEASE ANSWER QUICKLY
Mamont248 [21]
60 degrees. It's probably an equilateral triangle.
3 0
3 years ago
Read 2 more answers
12k+6=4k–8 what is the value of K?
Lerok [7]

Answer:

k = 28/7 which equals 4

Step-by-step explanation:

1/2k + 6 = 4k - 8

1/2k - 4k = -8 - 6

1/2k - 8/2k = -14

-7/2k = -14

k = -14 * - 2/7

k = 28/7 which equals 4

7 0
4 years ago
Read 2 more answers
What decimal number is halfway between 20 and 21?
love history [14]

Answer:

20.5

Step-by-step explanation:

(20+21)/2 = 20.5

:) Hope this helps, please mark as brainliest!

6 0
3 years ago
If f(x) = x (ln x), find f'(x).<br> A. e^(x + 1)<br> B. 1 + ln x<br> C. 1 + e^x<br> D. (ln x)^2 + x
Artyom0805 [142]

Answer:

f'(x)=1+\ln x

Step-by-step explanation:

f'(x) is notation for the first derivative of f(x).

Recall the product rule:

(f\cdot g)'=f'\cdot g+g'\cdot f

Therefore, we have:

\displaystyle \frac{d}{dx}(x\ln x)=\frac{d}{dx}(x)\cdot \ln(x)+\frac{d}{dx}(\ln x)\cdot x

Note that:

\displaystyle \frac{d}{dx}(x)=1,\\\\\frac{d}{dx}(\ln x)=\frac{1}{x}

Simplify:

\displaystyle \frac{d}{dx}(x\ln x)=1\cdot \ln x+\frac{1}{x}\cdot x, \\\\\frac{d}{dx}(x\ln x)= \ln x+1=\boxed{1+\ln x}

7 0
3 years ago
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