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2 years ago

Need help solving for D

Mathematics

2 answers:

NARA [144]2 years ago

3 0

Maybe The 30% And 70% Is In The Other Triangle And You Do The Same Thing Thats What I Am Guessing Not 100% Sure About It Because I Have Not Learned This Yet! :P

Shtirlitz [24]2 years ago

3 0

Angle D is 80 degrees
The lines on the triangles show that both the triangles are congruent (equal in length and value) to each other). A triangle is equal to 180 degrees. 30 + 70 is 100. 180- 100 equals 80. Therefore, because the triangles are congruent to each other, then both angle B and angle D must be 80 degrees

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Select all of the following that are ordered pairs of the given function.

Tatiana [17]

F(x) is the same as y.......so basically ur subbing in ur points into the equation to see if it comes out equal.

f(x) = 3 - 2x.....(-2,-1)....x = -2 and f(x) = -1
-1 = 3 - 2(-1)
-1 = 3 + 2
-1 = 5.....this is not true, so it is not a solution

and that is how to do this problem.....

(-1,5)......this IS a solution
(0,3)......this IS a solution
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(2,-1)...this IS a solution

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2 years ago

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alexgriva [62]

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1 year ago

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Find the value of x.<br> When a leg is 6<br> units and the<br> hypotenuse is 12<br> units.

DIA [1.3K]

Answer:

6√3

Step-by-step explanation:

6^2+x^2=12^2

36+x^2=144

-36 -36

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x=6√3

3 0

2 years ago

Find two consecutive even numbers such that the difference of one-half the larger and two-fifths the smaller is equal to 38

expeople1 [14]

EXPLANATION

The consecutive even numbers are
$370 \: and \: 372$

EXPLANATION

Let
$x$
be the first even number then, the next even number will be,

$x + 2$

The difference of one-half the larger one and two-fifth the smaller one is 38 gives the equation,

$\frac{1}{2} (x + 2) - \frac{2}{5} x = 38$

We multiply through with an LCM of 10 to get,

$10 \times \frac{1}{2} (x + 2) - 10 \times \frac{2}{5} x = 38 \times 10$

This simplifies to,

$5(x + 2) - 4x = 380$

We expand the brackets to get,

$5x + 10 - 4x = 380$

We group like terms to get,

$5x - 4x = 380 - 10$

This simplifies to
$x = 370$

Therefore the next even number is is
$372$

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2 years ago

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alina1380 [7]

Find the amount of tax money she needed to pay

7% of 17.50

=7/100 * 17.50

=122.50/100

=1.22

Find the final sales price

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2 years ago

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