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Anni [7]
3 years ago
12

sharla has 87 silver coins in her collection and 82 copper coins in her collection. She rounded each type of coin to the nearest

ten and estimated she has about 200 coins. is this reasonable estimate
Mathematics
1 answer:
valina [46]3 years ago
3 0

Answer:

no it is not reasonable

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A line represented by y = 2x − 3 and a line perpendicular to it intersect at R(2, 1). What is the equation of the perpendicular
neonofarm [45]

Answer:

y = -1/2x + 2

Step-by-step explanation:

y = 2x - 3. The slope here is 2. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal, just flip the slope and change the sign.

slope = 2 or 2/1.....flip it.....1/2....change the sign...-1/2. So our perpendicular line will have a slope of -1/2.

y = mx + b

slope(m) = - 1/2

(2,1)....x = 2 and y = 1

now we sub and find b, the y intercept

1 = -1/2(2) + b

1 = -1 + b

1 + 1 = b

2 = b

so ur equation is : y = -1/2x + 2 <===

and u can check it with ur points....(2,1)

y = 2x - 3

1 = 2(2) - 3

1 = 4 - 3

1 = 1 (yep...it checks out)

8 0
3 years ago
Quiz
Leto [7]

Answer:

1.  50⁴ + 2³ =6250008

2.  3³ x 4²= 432

Step-by-step explanation:

I just put it into the desmos scientific calculator. If your teacher lets you, it is a good calculator.

3 0
3 years ago
Find the distance between points P (-3, 4) and Q (1, 6).
salantis [7]
Just draw a graph and plot them on the graph then count how many squares (in short) there is between them.
7 0
3 years ago
MULTIPLY POLYNOMIALS <br> (8p-2)(6p+2)
____ [38]
(8p-2)(6p+2)=8p\cdot 6p+8p\cdot 2-2\cdot 6p -2\cdot 2=\\ \\ =48p^2+16p-12p-4=48p^2+4p-4


6 0
3 years ago
Read 2 more answers
Help!!!How does the slope of g(x) compare to the slope of f(x)?
attashe74 [19]

we know that

The formula to calculate the slope m between two points is equal to

m=\frac{(y2-y1)}{(x2-x1)}

Step 1

<u>Find the slope of the function f(x)</u>

Let

A( 0,-2)\\B(1,0)

substitute the values in the formula  above

m=\frac{(0+2)}{(1-0)}

m=2

<u>the slope of the function f(x) is m=2</u>

Step 2

<u>Find the slope of the function g(x)</u>

Let

C( -4,0)\\D(0,2)

substitute the values in the formula  above

m=\frac{(2-0)}{(0+4)}

m=\frac{2}{4}

m=\frac{1}{2}

the slope of the function g(x) is m=\frac{1}{2}

therefore

slope f(x) > slope g(x)

or

slope g(x) < slope f(x)

<u>the answer is the option </u>

B.The slope of g(x) is less than the slope of f(x).

4 0
3 years ago
Read 2 more answers
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