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REY [17]
2 years ago
12

3. Find the geometric mean of 4 and 10. (1 point) A. 20 B. 7 C. SQ root of 14 D. 2x SQ root of 10​

Mathematics
1 answer:
mart [117]2 years ago
7 0

Answer:

2\sqrt10

6.3 to the nearest 10th

Step-by-step explanation:

Hope this helped :)

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The price of an item has risen to $221 today. Yesterday it was $130. Find the percentage increase.
wlad13 [49]

Answer:

70

Step-by-step explanation:

4 0
3 years ago
The maximum value of the function: f(x)= -5 x ^2 +30x-200 is?
VARVARA [1.3K]

Answer:

\displaystyle    - 155

Step-by-step explanation:

we are given a quadratic function

\displaystyle f(x) =  - 5 {x}^{2}  + 30x - 200

we want to figure out the minimum value of the function

to do so we need to figure out the minimum value of x in the case we can consider the following formula:

\displaystyle x _{ \rm  min} =  \frac{ - b}{2a}

the given function is in the standard form i.e

\displaystyle f(x) = a {x}^{2}  + bx + c

so we acquire:

  • b=30
  • a=-5

thus substitute:

\displaystyle x _{ \rm  min} =  \frac{ - 30}{2. - 5}

simplify multiplication:

\displaystyle x _{ \rm  min} =  \frac{ - 30}{ - 10}

simply division:

\displaystyle x _{ \rm  min} =  3

plug in the value of minimum x to the given function:

\displaystyle f (3)=  - 5 {(3)}^{2}  + 30.3 - 200

simplify square:

\displaystyle f (3)=  - 5 {(9)}^{}  + 30.3 - 200

simplify multiplication:

\displaystyle f (3)=  - 45  + 90- 200

simplify:

\displaystyle f (3)=   - 155

hence,

the minimum value of the function is -155

5 0
3 years ago
What is the answer to 8(6+4×)=-176
taurus [48]

Answer:

Step-by-step explanation:

48+32x=-176

32x=224

x=7

3 0
3 years ago
Quadrilateral ABCD is similar to quadrilateral EFGH the length of the three longest side in quadrilateral ABCD are 24 feet 16 fe
Triss [41]
Check the picture below

solve for "x"

since we know the two smallest sides for EFGH are 9 and 18, 9 is the smallest of all, and 18 is the next small

thus, for the the quadrilateral ABCD, the smallest is "x" and the next small is given, is 12, since that's smaller than 16 or 24

5 0
3 years ago
Pleeeaaaase brainliest to first person
Sergeeva-Olga [200]

Answer:

4•8 feet

Step-by-step explanation:

Distance= first floor × second ÷ escalator

Distance= 12feet × 12feet ÷ 30 feet

= 12×12÷30

= 4•8 feet

8 0
3 years ago
Read 2 more answers
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