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3 years ago

If a = 7, b = 3, and c = 5, then 4a − 3c =

Mathematics

1 answer:

serious [3.7K]3 years ago

8 0

4a-3c=4×a-3×c

=4×7-3×5

=28-15

=13 this is the correct answer

I hope this answer help you

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Simplify each expression. 1. 92

77julia77 [94]

Answer: 81

Concept:

When a number is being squared, to being put to any power, it means the number multiplies itself by the amount of times indicated by the exponent.

For example, if 3 is to the 3rd power, then it would appear to be 3 × 3 × 3.

Solve:

Given

9²

Simplify exponents

=9 × 9

Simplify by multiplication

= $\boxed{81}$

Hope this helps!! :)

Please let me know if you have any questions

3 0

3 years ago

2 Points

alexdok [17]

Answer:

Rx)=1/3x^2

Step-by-step explanation:

A horizontal stretch is simply making the parabola of the parent function wider, it's kind of like changing the slope of a line to make it less steep.

In the graph, the red line is the parent function and the blue line is the horizontally stretched function. See how the blue line appears to be stretched (horizontally).

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3 years ago

What is the first step when solving this equation: 2(x-4)+6=3x+19

Delicious77 [7]

Solve the parenthesis

5 0

3 years ago

Read 2 more answers

How far have I travelled if I biked at 10mph for hhrs, I walked at 3mph for twice as long as I biked, and ran at 10mph for one q

ICE Princess25 [194]

Answer:

21h

Step-by-step explanation:

we know that

Speed = distance / time, and as such

distance = speed * time

From the question, we are given that ...

He biked for h hrs -> b

He walked for 2 * b = 2h -> w

He ran for (1/4)(w) = 1/4 * 2h = 1/2 h -> r

The total distance traveled will then be

total distance = distance biked + distance walked + distance ran

recall that we stated that

d = s * t, now we'd apply that here

distance biked = 10 * h = 10h

distance walked = 3 * 2h = 6h

distance ran = 10 * 1/2h = 5h

total distance = 10h + 6h + 5h

Total distance = 21h

3 0

3 years ago

Lorenzo buys 3 shirts at

sergij07 [2.7K]

9514 1404 393

Answer:

the amount Lorenzo spent on shirts and pants

Step-by-step explanation:

If s is the price of one shirt, then 3s is the price of 3 shirts.

If p is the price of a pair of pants, then 2p is the price of 2 pairs of pants.

3s +2p is the price of 3 shirts and 2 pairs of pants

This is the amount of Lorenzo's purchase.

7 0

3 years ago