3 years ago

Can someone please help me check my answers Mark Brainliest

1 answer:

3 0

I believe the answer for 17 is C. 18 I am not sure how to do. For 19, however, the answer is B. Hope I help, and sorry I can't answer 18.

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I NEED THE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 1/7-3(3/7x-2/7)

melomori [17]

Step-by-step explanation:

x in (-oo:+oo)

1/7-(3*((3/7)*x-(2/7))) = 0

1/7-3*((3/7)*x-2/7) = 0

1/7-3*(3/7*x-2/7) = 0

(-3*7*(3/7*x-2/7))/7+1/7 = 0

1-3*7*(3/7*x-2/7) = 0

7-9*x = 0

(7-9*x)/7 = 0

(7-9*x)/7 = 0 // * 7

7-9*x = 0

7-9*x = 0 // - 7

-9*x = -7 // : -9

x = -7/(-9)

x = 7/9

6 0

3 years ago

Read 2 more answers

A craftsman can sell 10 jewelry sets for $500 each. He knows

liraira [26]

Answer:15

Step-by-step explanation:

Given

Craftsman sell 10 Jewelry set for $500 each

For each additional set he will decrease the price by $ 25

Suppose he sells n set over 10 set

Earning $=\text{Price of each set}\times \text{no of set}$

Earning $=(500-25n)(10+n)$

$E=5000+500n-25n^2-250n$

differentiate to get the maximum value

$\frac{dE}{dn}=-50n+250$

Equate $\frac{dE}{dn}$ to get maximum value

$-50n+250=0$

$n=\frac{250}{50}$

$n=5$

Thus must sell 5 extra set to maximize its earnings.

5 0

3 years ago

Given RS = 6, ST = 3, and SL = 4, find SM.

NemiM [27]

A² + b² = c²
3² + 4² = c²
9 + 16 = c²
C² = 25
C = 5
so
SM = 5

7 0

3 years ago

Read 2 more answers

I need help with a math problem it says to subtract 2y - 3 from 5y-10

Alexeev081 [22]

The answer is 3y-7.hope this helps

7 0

3 years ago

Angle x and 56 are complementary. What is the value of x? 149 34 56 90

Anni [7]

Answer:

34°

Step-by-step explanation:

90-56=34°

__________

5 0

2 years ago

Can someone please help me check my answers ***Mark Brainliest***

Can someone please help me check my answers Mark Brainliest