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Softa [21]
3 years ago
12

Please help me with my work please help me please give me the answers

Mathematics
2 answers:
morpeh [17]3 years ago
4 0

Answer:

3. is 8 x h + 8 x 3 = 8h + 24

4. is 3 x 2h + 3 x 7 = 6h + 21

5. is 5 x 3x + 5 x 9y = 15x + 45y

6. is 4 x 11h + 4 x 3g = 44h + 12g  

8. is a x 9b + a x 13 = 9ba + 13a

I dont really know 7

jok3333 [9.3K]3 years ago
3 0
For all of them except number 7, multiply the outside number with all of the inside numbers (separately)
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A motor vehicle has a maximum efficiency of 39 mpg at a cruising speed of 40 mph. The efficiency drops at a rate of 0.1 mpg/mph
svp [43]

Answer:

38 mpg

Step-by-step explanation:

Initial efficiency = 39 mpg

Initial speed = 40 mph

Final speed = 50 mph

The efficiency drop  between 40 mph and 50 mph is given by:

E_d = 0.1 \frac{mpg}{mph}*\Delta V

The total efficiency drop from 40 to 50 mph is:

E_d = 0.1 \frac{mpg}{mph}*(50-40)mph\\E_d = 1\ mpg

Therefore, the efficiency at 50 mph is:

E_{50} = E_{40} -E_d\\E_{50} = 39 -1\\E_{50} = 38\ mpg

5 0
3 years ago
6 times the sum of d and 9
aksik [14]

Answer:

6(d+9)

Step-by-step explanation:

learn algebraic language

4 0
3 years ago
What is the Pythagorean Theorem used for? What is the formula
saveliy_v [14]
The Pythagorean Theorem states that a triangle's hypotenuse is equal to the square's of the other two sides of the triangle.

a² + b² = c<span>²
a = side of triangle
b = other side of triangle
c = hypotenuse (squared)

Find the square root to find the accurate length of the hypotenuse.</span>
5 0
3 years ago
Read 2 more answers
729, 243, 81, 27 find the sequence
PSYCHO15rus [73]

Answer:

a = 729/3^-1

Step-by-step explanation:

8 0
3 years ago
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Garfield had $10 in the bank yesterday. Then, Garfield bought dinner for $14, but didn't realize that he overdrew from his bank.
Rudik [331]
I believe it’s 4 since he’s in dept with 4 dollars so that’ll be -4, but the absolute value is 4 since it’s 4 spaces away from 0.
5 0
2 years ago
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