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PilotLPTM [1.2K]
3 years ago
7

They do too much with these hard questions

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
7 0

Answer:

it's either B or D but you would have to do the math

Step-by-step explanation:

BARSIC [14]3 years ago
7 0
I believe it is D but i don’t know how to do the math on here
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Estimate product using rounding 9.7 x 3.3=
Anestetic [448]
9.7*3.3=32.01
32 is the rounded product
8 0
3 years ago
Attached is the questions i need help with.
bekas [8.4K]

Answer:


Step-by-step explanation:

Reasons:

3. The measures of supplementary angles add up to 180* (2)

5. Definition of Congruence (4)

6. Substitution Postulate (3,5)


EDIT: Your statement and proof column is cut off, so I can't see the other statements to completely fill in the reasons column.

5 0
3 years ago
3-14 plzzz except #13 20 points!
Marianna [84]
#3: 15

#4: 13.2

#5: 5.44 (curious as to how you guessed 7)

#6: 7

#7: 7.3

#8: 15

#9: You'd round 0.9 to 1 and 3.78 to 4. 4/1 = 4

#10: Round 2.5 to 3. 36/3 = 12

#11: If they want you to round 0.25 down to 0, then 7/0 is undefined. 

#12: 9.5 rounds to 10 142.5 rounds to 143. 143/10 = 14.3

#14: 24.8 cm divided by 175 = approximately 0.1417 cm per year. Round that up to approximately 0.14 per year. 


4 0
3 years ago
Una compañía sabe que si produce "x" unidades mensuales su utilidad "u" se podría calcular con la expresión:
belka [17]

Answer:

Δf(u) /Δx  = 92,8    ( razón de cambio promedio)

Step-by-step explanation:

La expresión de la utilidad de la empresa u(x) en función de la cantidad de unidades producidas "x" es:

u(x) = 0,04*x² + 44*x  -4000

Entonces la razón de cambio promedio en un intervalo (a ; b)  en este caso ( 620 ;  600 ) viene dada por la expresión:

Δf(x)/ Δx  =  [ f(b)  -  f(a) ]/( b - a )

en donde  f(b)  y f(a) se obtienen por sustitución de los valores a y b es decir  600 y 620 respectivamente en la función f(x) = u(x) entonces

Δf(u) /Δx  =  [ u(b)  -  u(a) ]/( b -a )        (1)

u(b) =  0,04*(620)² + 44*(620) - 4000

u(b) = 15376 + 27280 -4000

u(b) = 2656 unidades

u(a)  = 0,04* (600)²  +  44* 600  - 4000

u(a)  = 14400  +  26400  - 4000

u(a) = 800

Sustituyendo esos valores en la ecuación 1

Δf(u) /Δx  =  2656 - 800 / 620 - 600

Δf(u) /Δx  = 92,8

5 0
4 years ago
Solve the following equation: 28 ÷ 7 + 2 × 3 = ? A. 10 . B. 18 . C. 12 . D. 24
Katena32 [7]
28\div 7+2\cdot3=4+6=10
7 0
3 years ago
Read 2 more answers
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