3 years ago

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Mathematics

1 answer:

nlexa [21]3 years ago

5 0

Answer:

divide

Step-by-step explanation:

divide the first one by the second that might help

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Which equation is quadratic in form?

iren2701 [21]

2(x+5)2+8x+5+6=0 is the answer

8 0

3 years ago

Read 2 more answers

If the endpoints of AB are at (-4, 5) and (2, -7), what is the length of AB?

Sonbull [250]

Answer:

The length of AB is $6\sqrt{5}$ units

Step-by-step explanation:

The rule of the distance between two points (x1, y1) and (x2, y2) is

$d=\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}$

∵ The endpoints of AB are (-4, 5) and (2, -7)

→ Let point (-4, 5) be (x1, y1) and point (2, -7) be (x2, y2)

∴ x1 = -4 and y1 = 5

∴ x2 = 2 and y2 = -7

→ Substitute them in the rule above to find the length of AB

∵ $AB=\sqrt{(2--4)^{2}+(-7-5)^{2} }=\sqrt{(2+4)^{2}+(-12)^{2}}$

∴ $AB=\sqrt{(6)^{2}+144}=\sqrt{36+144}$

∴ $AB=\sqrt{180}=6\sqrt{5}$

∴ The length of AB is $6\sqrt{5}$ units

3 0

3 years ago

Find f(–3) for the following function

Grace [21]

F(-3) = -2(-3) + 3
f(-3) = 6 + 3
f(-3) = 9
answer

<span>b. 9</span>

6 0

3 years ago

Katie deposited $1,000 in the bank for 6 years. She earned a simple interest rate of 1.5%. How much interest did she earn?

Nataly [62]

Answer:

Idl but I believe its 2340

Step-by-step explanation:

but I could be wrong

6 0

3 years ago

Evaluate 9x - 11 for x = -3 and x = 7.

o-na [289]

Answer:

-38,

Step-by-step explanation:

1. 9x-11=-27-11=-38

2. 9x-11=63-11=52

The answers are in order.

1. x=-3

2. x=7

4 0

3 years ago