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diamong [38]
3 years ago
13

Evaluate 7r-15/8 when r=3 and 8=5​

Mathematics
2 answers:
Natali [406]3 years ago
8 0

Answer:

18

Step-by-step explanation:

multiply 7 and 3

reduce 15/5 to 3

subtract 21-3

18

statuscvo [17]3 years ago
6 0

Answer:

18

Explanation:

7(3)-15/5

21-15/5

21-3=18

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Find the distance between the points (2, 7) and (-6, -2).
maw [93]

Answer:

Approximately 12.04 units.

Step-by-step explanation:

The find the distance between any two points, we can use the distance formula, which is:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2

We have the points (2,7) and (-6,-2). Let's let (2,7) be (x₁, y₁) and let's let (-6, -2) be (x₂, y₂). Substitute:

d=\sqrt{(-6-2)^2+(-2-7)^2

Subtract:

d=\sqrt{(-8)^2+(-9)^2

Square:

d=\sqrt{64+81}

Add:

d=\sqrt{145}

Approximate

d=\sqrt{145}\approx12.04

So, the distance between (2,7) and (-6,-2) is approximately 12.04 units.

And we're done!

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3 years ago
Plz help!
Marizza181 [45]

Answer:

800 is the answer

Step-by-step explanation:

90-40= 50---->4000/50=800

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Maggie purchased a 2-pound roast to fix for dinner. How many ounces does the roast weigh?
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Anyone help with my geometry quiz please
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Use a negative factor to factor the expression - 7a+49b - 35
Helen [10]

Answer:

using a negative facto to factor the expression will be:

- 7a+49b - 35 = -7(a-7b+5)

Step-by-step explanation:

Given the expression

- 7a+49b - 35

Rewrite -35 as 5 · 7

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so

= -7a + 7 · 7b - 5 · 7

as -7 is the common factor, so factoring out

= -7(a-7b+5)

Thus, using a negative facto to factor the expression will be:

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Step-by-step explanation:

1965 round to the nearest tenth is 1970

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