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3 years ago

I need help on everything please help me

Mathematics

1 answer:

Ksivusya [100]3 years ago

3 0

I would think it would be b for task 3

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a square is put together by two triangles. the hypotenuse is 11 cm and width if 8 cm. find the height of the triangle.

maksim [4K]

Answer:

b ≈ 7.54 cm

Step-by-step explanation:

Pythagorean Theorem

a² + b² = c²

a and b are the sides and c is the hypotenuse

hypotenuse is 11 cm

a side is 8 cm

8² + b² = 11²

64 + b² = 121

-64 -64

b² = 57

√b² = √57

b ≈ 7.54 cm ( use ≈ because its rounded so its not exact)

3 0

4 years ago

An angle measures 47.2° less than the measure of its supplementary angle. What is the measure of each angle? on ixl

SVEN [57.7K]

Answer:

The measure of one angle is $113.6^o$ , and the measure of the other one is $66.4^o$

Step-by-step explanation:

Recall that supplementary angles are those whose addition renders $180^o$

We need to find the measure of two such angles whose difference is precisely $47.2^o$ .

Let's call such angles x and y, and consider that angle x is larger than angle y, so we can setup the following system of equations:

$x+y=180^o\\x-y=47.2^o$

We can now solve this by simply combining term by term both equations, thus cancelling the term in "y", and solving first for "x":

$x+y=180^o\\x-y=47.2^o\\\\2x=180^o+47.2^o\\2x=227.2^o\\x=113.6^o$

So, now we have the answer for one of the angles (x), and can use either equation from the system to find the measure of angle "y":

$y=180^o-x\\y=180^o-113.6^o\\y=66.4^o$

5 0

3 years ago

Out of 431 applicants for a job, 142 have over 5 years of experience and 103 have over 5 years of experience and have a graduate

Savatey [412]

Answer:

0.2390

Step-by-step explanation:

Given

Total applicants = 431
Applicants with graduate degree and over 5 years of experience = 103

Probability = favorable outcomes/total outcomes

Required probability

103/431 = 0.2390 rounded to 4 decimal places

3 0

4 years ago

Pls Help Me With This Question! It's 8th Grade Math!

Mademuasel [1]

Answer:

y= 4/3x

Step-by-step explanation:

5 0

4 years ago

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Hurry I'm timed hurryryeye

kozerog [31]

Answer:

It is 171

Step-by-step explanation:

${x}^{2} - 3y + x$

substitute for x and y:

$= {(14)}^{2} - 3(13) + 14 \\ = 196 - 39 + 14 \\ = 171$

4 0

3 years ago

Read 2 more answers