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3 years ago

PLEASE HELP ME WITH THIS !! ILL GIVE BRAINLIEST

Mathematics

1 answer:

maks197457 [2]3 years ago

5 0

Answer:

D. d ≈ 9.4

Step-by-step explanation:

[] We can use the distance formula to solve

-> The distance formal is attached.

$d = \sqrt{(4-9)^{2}+ (2-10)^{2} }$

$d = \sqrt{(-5)^{2}+ (-8)^{2} }$

$d = \sqrt{25+ 64 }$

$d = \sqrt{89}$

d ≈ 9.4

Have a nice day!

I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

- Heather

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Which equation can be used to find the solution of (1/3)^d−5=81 ?

horsena [70]

Let's solve your equation step-by-step.

Step 1: Add 5 to both sides.

$\frac{1}{3}^{2} -5+5=81+5$

$\frac{1}{3}^d =86$

Step 2: Solve Exponent to get.

d = −4.054522 or -4.05 hope this helps

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3 years ago

If f(x) varies directly with x and f(x) = 4 when x = 12, then what is the value of f(x) when x = 60?

ANTONII [103]

ANSWER

$f(60)=3\times60=180$

EXPLANATION
We were given that
$f(x)$
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This implies that,

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The equation becomes

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When $x=60$

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4 years ago

Brass is made from a mixture of copper and other elements. a mixture that is 80% copper is combined with a mixture that is 60% c

algol [13]

The equation that can be used to find x, the amount of the 60% mixture used to create the 65% mixture is:

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First, let's define two variables:

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y = pounds of the 80% copper brass.

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And the percentage of copper before and after mixing must be the same, so we can write:

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Now we replace that in the other equation:

0.60*x + 0.80*(100 - x) = 0.65*(100).

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If you want to learn more about systems of equations:

brainly.com/question/13729904

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2 years ago

Solve in simplest form<br><br> 15 3/5 - 3 2/7

artcher [175]

Answer:

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3 years ago

If ef bisects angle ceb,angle cef=7x+31 and angle feb=10x-3

Nastasia [14]

Given : Angle < CEB is bisected by EF.

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Solution: Angle < CEB is bisected into two angles < FEB and < CEF.

Therefore, < FEB = < CEF.

Substituting the values of < FEB and < CEF, we get

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Adding 3 on both sides, we get

10x -3+3 = 7x +31+3.

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10x-7x = 7x-7x +34.

3x = 34.

Dividing both sides by 3, we get

x= 11.33.

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We get

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3 years ago