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Lana71 [14]
2 years ago
15

Solve the following problems

Mathematics
1 answer:
liraira [26]2 years ago
7 0
Too confusing for me
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Write the equation of the line that passes through each pair of points in slope-intercept form. This is worth 3 points. You have
LekaFEV [45]
(0,5)(3,-1)
slope = (-1 - 5) / (3 - 0) = -6/3 = -2

y = mx + b
slope(m) = -2
(use either of ur points...(0,5)...x = 0 and y = 5
now we sub and find b, the y int
5 = -2(0) + b
5 = b

so ur line is : y = -2x + 5
6 0
2 years ago
Read 2 more answers
PLS HELPPP GEOMETRY!!!!!!
murzikaleks [220]

Answer:

a-17.3 miles b-S57 E

Step-by-step explanation:

d^2=30^2+12^2-2(30)(12)

sin45

8 0
2 years ago
2.25k - 20 = 6.5k + 14<br><br><br> plsssssssssssss
Pani-rosa [81]

Answer:

k=-8

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

3 0
3 years ago
Read 2 more answers
If f (x) = x² - 7, evaluate the following: f(12) f(-7)
Julli [10]

Answer: f(12) = 137, f(-7) = 42

Step-by-step explanation: In a function, what you want to do is plug in the value they give you for x. This means you substitute x with the value they are looking for.

In this case, they are looking at 12 and -7. Let's do 12 first.

The equation becomes (12^2) - 7. 12^2 is 144, and 144-7 is 137.

Now we do -7. The equation becomes (-7)^2 - 7. -7^2 is 49, and 49 - 7 is 42.

Hope this helped!

7 0
1 year ago
B
Tom [10]

Answer:

(a) 320 cm²

(b) 75 cm³

Step-by-step explanation:

The scale factor from A to B is 8/4 = 2.

The scale factor of the areas is 2² = 4.

The scale factor of the volumes is 2³ = 8.

(a)

80 cm² * 4 = 320 cm²

(b)

600 cm / 8 = 75 cm³

8 0
2 years ago
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