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4 years ago

HELPPP!! ASAP PLZ!!!

Mathematics

1 answer:

ExtremeBDS [4]4 years ago

8 0

Answer:

J: 84%.

Step-by-step explanation:

I don't really know how to explain this one.

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Solve (x-4)² = 5.<br> A. x=9 and x = -1<br> B. x=-4± √√5<br> OC. x=4+√5<br> D. x-5± √√4

dem82 [27]

Answer:

see explanation

Step-by-step explanation:

(x - 4)² = 5 ( take square root of both sides )

x - 4 = ± $\sqrt{5}$ ( add 4 to both sides )

x = 4 ± $\sqrt{5}$

that is

x = 4 - $\sqrt{5}$ , x = 4 + $\sqrt{5}$

6 0

3 years ago

Read 2 more answers

Find x in each triangle! Will award brainliest

puteri [66]

Answer:

First triangle x=9

Second triangle x=20

Step-by-step explanation:

Using Pythagorean theorem

40^2+x=41^2

1600+x^2=1681

-1600 -1600

x^2=81

To find x we do the opposite of powers and find the squared

x=9

Second triangle

21^2+x^2=29^2

441+x^2=841

-441 -441

x^2=400

x=20

8 0

3 years ago

Math Focus

posledela

Answer:

<h2>(90Degree)(0.3Degree/1min) = 300min</h2><h2>since 60min = 1hr</h2><h2>(300min)(1hr/60min) = 5hrs</h2>

5 0

4 years ago

What is the slope of the line? 4x - 1 = 3y + 5

MissTica

You need to isolate y. When you do, will get y=(4/3)x-2. When the equation is in this form, you can see that the slope is 4/3

6 0

3 years ago

Help find the missing lengths round to nearest tenth

Mama L [17]

Answer:

Step-by-step explanation:

Theta is 21 degrees

x is the adjacent side
8 is the opposite side
y is the hypothenuse

SOH - CAH - TOA

Since the opposite side is given and we need to find the length of the adjacent side, we can use tangent to solve for x.

$tan 21=\frac{opposite}{adjacent} \\tan 21 =\frac{8}{x} \\0.384 =\frac{8}{x} \\0.384x =8 \\x=\frac{8}{0.384} \\x=20.84$

Since the opposite side is given and we need to find the length of the hypotenuse, we can use sine to solve for y.

$sin 21=\frac{opposite}{hypotenuse} \\sin21 =\frac{8}{y} \\0.358 =\frac{8}{y} \\0.358y=8 \\y=\frac{8}{0.358} \\y=22.32$

6 0

3 years ago