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2 years ago

Please help me and ill mark you brainlest

Mathematics

2 answers:

dedylja [7]2 years ago

8 0

Answer:

Step-by-step explanation:

Multiply by 3

4 x 3 = 12

9 x 3 = 27

Archy [21]2 years ago

5 0

Answer:

Step-by-step explanation:

We can find the answer by comparing the sides of the triangles!

We are trying to find a triangle where the ratios are the same: 4/9 has to equal another fraction.

Triangle D is correct because 12/27=0.4 which is equal to 4/9=0.4

another way we can check is by seeing how much 4 is multiplied to get to twelve and seeing how much 9 is multiplied to get to 27

4*3=9

9*3=27

by this we can confirm the fractions of 4/9 and 12/27 are equal because both 4 and 9 are multiplied by the same number to get to the new fraction numbers.

hope this helps!

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2 years ago

10. What is the measure of angle C?<br> A. 25°<br> B. 30°<br> C. 60°<br> D. 75°

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Answer:

Step-by-step explanation:

x + 5 + 3x + C = 180 All triangles have 180 degrees.

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But C must be equal to 3x. Notice the markings on the lets of the triangle.

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8 0

3 years ago

The measure of angle A is 15°, and the length of side

dangina [55]

Answer:

Part 1) $AB=30.9\ units$

Part 2) $AC=29.9\ units$

Step-by-step explanation:

The picture of the question in the attached figure

Part 1

Find the length side AB

we know that

$sin(A)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

$sin(15^o)=\frac{8}{AB}$

solve for AB

$AB=\frac{8}{sin(15^o)}=30.9\ units$

Part 2

Find the length side AC

we know that

$tan(A)=\frac{BC}{AC}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

$tan(15^o)=\frac{8}{AC}$

solve for AC

$AC=\frac{8}{tan(15^o)}=29.9\ units$

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3 years ago