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3 years ago

Find the equation of the line passing through the points (2,1) and (5, 10) y = 3x + ?

Mathematics

1 answer:

storchak [24]3 years ago

7 0

Answer:

y = 3x -5

Step-by-step explanation:

y = mx + b

for (5, 10)

b = y - mx = 10 - 3 x 5 = - 5

y = 3x -5

for (2,1)

check: 1 = 2 x 3 -5

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Amanda simplifies the following expression and shows her work below. What mistake did Amanda make that resulted in an incorrect

den301095 [7]

Answer:

A, She added before multiplying.

Step-by-step explanation:

First, start off by using GEMDAS.

Grouping

Exponents

Multiply

Divide

Add

Subtract

You work from left to right - so you obviously divide first, which Amanda did successfully. Then, you multiply, which is exactly where Amanda went wrong. She was supposed to multiply before adding the 3 with 4.

Not sure if this made sense,

8 0

2 years ago

2 x=-80 can u solve this

zaharov [31]

Answer
x=-40
hope this helps and have a wonderful day :)

4 0

3 years ago

Help

notsponge [240]

Answer:

$V=90$

Step-by-step explanation:

Step 1: Find the volume of the cone

$V = \frac{\pi *r^{2}*h}{3}$

Plug in the values

$V = \frac{\pi *3^{2}*10}{3}$

Simplify and Solve

$V = \frac{\pi *9*10}{3}$

$V = \frac{90\pi }{3}$

$V = \frac{90*3 }{3}$

$V=90$

Answer: $V=90$

3 0

3 years ago

Please help with question 7

BartSMP [9]

So we follow the format y=mx+c. we know the y intercept (c) is 2. the gradient is -1/2 which is a fraction. and then substitute

y=mx+c
y=mx+2
y= -1/2x +2

8 0

2 years ago

Simplify 27-8 (2a+3b-1)

melamori03 [73]

Answer:

−16a−24b+35

Step-by-step explanation:

27 - 8 • (2a + 3b - 1)

16a - 24b + 35 = -1 • (16a + 24b - 35)

hoped this helped lmk if it did

8 0

3 years ago