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3 years ago

30 Points!

Mathematics

1 answer:

aliina [53]3 years ago

4 0

Answer:

See the attached picture

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If a math test has questions on spelling, the test does not have this type of validity.

Arada [10]

Answer:

yes

Step-by-step explanation:

because its true

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2 years ago

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Right triangles abc and dbc with right angle c are given below. If cos(a)=15,ab=12 and cd=2, find the length of bd.

dmitriy555 [2]

see the attached figure to better understand the problem

we have that

$cos(A)=\frac{1}{5} \\ AB=12\ units\\ CD=2\ units$

Step 1

Find the value of AC

we know that

in the right triangle ABC

$cos (A)=(AC/AB)\\AC=AB*cos(A)$

substitute the values in the formula

$AC=12*(1/5)\\ AC=2.4\ units$

Step 2

Find the value of BC

we know that

in the right triangle ABC

Applying the Pythagorean Theorem

$AB^{2} =AC^{2}+BC^{2}\\ BC^{2}=AB^{2} -AC^{2}$

substitute the values

$BC^{2}=12^{2} -2.4^{2}\\BC^{2}= 138.24\\ BC=11.76\ units$

Step 3

Find the value of BD

we know that

in the right triangle BCD

Applying the Pythagorean Theorem

$BD^{2} =DC^{2}+BC^{2}$

substitute the values

$BD^{2} =2^{2}+11.76^{2}$

$BD=11.93\ units$

therefore

the answer is

the length of BD is 11.93 units

8 0

3 years ago

Read 2 more answers

Tiffany wants to make 6 batches of cookies. She will need 2 cups of sugar for each

Readme [11.4K]

Answer:12 cups of sugar

Step-by-step explanation:

There is 6 batches each batch has two cups you would do 6x2 for 12 cups.

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3 years ago

Compute the partial products.add them 349x 59

Semmy [17]

20,591................

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2 years ago

One angle of a right triangle measures 8°. What is the measure of the other acute angle?

Ivahew [28]

Answer:

82°

Step-by-step explanation:

The acute angles in a right triangle are complementary. The other one is ...

90° -8° = 82°

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2 years ago