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3 years ago

5

Questions

1 answer:

Kisachek [45]3 years ago

7 0

Answer:2.3 0,8 40.3

Step-by-step explanation:

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Which expression is equivalent to (7x-5) - (3x - 2)

LuckyWell [14K]

Answer:

(c) 4x - 7

Step-by-step explanation:

7x - 3x

= -4x

-5 -2

= -7

4x - 7

6 0

4 years ago

Read 2 more answers

When the piggy bank was opened, it yielded $4.75 in nickels and pennies. If there were 175 coins in all, how many were nickels a

Svetradugi [14.3K]

100 were pennies : $1
75 were nickels: $3.75

8 0

3 years ago

D=2 when C=17 they vary inversely what is d when c=68

kipiarov [429]

Well D=8.5C so divide 68 by 8.5 (answer is 8)

5 0

3 years ago

Please help, this is timed. 50 points for each answer. What is the difference quotient of f(x)?

egoroff_w [7]

x travels from -5 to 5

y stays constant at 8

Quotient is given by y/x

Hence our answer is .

$\\ \sf\longmapsto \dfrac{8}{h}$

Here h can't be 0 as it makes the diction undefined.

$\\ \sf\longmapsto \dfrac{8}{h},h\neq 0$

Option B

4 0

2 years ago

Find the lateral and surface area of each cone

Sophie [7]

Answer:

$\large\boxed{L.A.=153\pi\ mm^2}\\\boxed{S.A.234\pi\ mm^2}$

Step-by-step explanation:

The formula of a lateral area of a cone:

$L.A.=\pi rl$

r - radius

l - slant height

The formula of a surface area of a cone:

$S.A.=\pi r^2+\pi rl$

We have r= 9mm and l = 17mm. Substitute:

$L.A.=\pi(9)(17)=153\pi\ mm^2$

$S.A.=\pi(9^2)+153\pi=81\pi+153\pi=234\pi\ mm^2$

7 0

3 years ago