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3 years ago

If sinA=1/2 what is cosA

Mathematics

1 answer:

sergejj [24]3 years ago

4 0

Answer:

$\frac{\sqrt3}{2}$

Step-by-step explanation:

$sin(A)=\frac{1}{2}$

$A = \frac{\pi}{6}$ //this is retrieved from looking at the unit circle

$cos(A) = cos(\frac{\pi}{6}) = \frac{\sqrt3}{2}$

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Rewrite the following expression using base only once 7^6 x 7^8

chubhunter [2.5K]

Answer:

$7^{14}$

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ = $a^{(m+n)}$ , then

$7^{6}$ × $7^{8}$ = $7^{(6+8)}$ = $7^{14}$

3 0

2 years ago

PLEASE HELP ASAP!! WILL GIVE BRAINIEST + 30 POINTS!!

Goryan [66]

Given rectangle RUTS, the missing reasons that justifies the five statements in the two-column proof are:

Given
Definition of rectangle.
Definition of rectangle.
By SAS Congruence Theorem.
By CPCTC.

<h3>What is a Rectangle?</h3>

A rectangle is a quadrilateral.
All four angles in a rectangle are right angles.
The opposite sides of a rectangle are parallel and congruent to each other.

Therefore, based on what we are given and the definition of a rectangle, we can establish that △URS ≅ △STU by SAS.

Since △URS ≅ △STU, therefore ∠USR = ∠SUT by CPCTC.

In conclusion, given rectangle RUTS, the missing reasons that justifies the five statements in the two-column proof are:

Given
Definition of rectangle.
Definition of rectangle.
By SAS Congruence Theorem.
By CPCTC.

Learn more about properties of rectangle on:

brainly.com/question/2835318

6 0

2 years ago

A team of 3 QA testers and l QA team lead is working on a project. The team finishes

valina [46]

The team-lead gets $2000 if the team of 3 QA testers and l QA team lead is working on a project. The team finishes the job and is paid.

<h3>What is average?</h3>

It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.

Let's suppose the team lead salary is x and the team-lead receives, $600 more than the average salary of the entire team then,

The team lead salary:

$\rm x = \dfrac{1200+1200+1200+x}{4} + 600$

4x = 3600+ x+ 2400

3x = 6000

x = $2000

Thus, the team lead gets $2000 if the team of 3 QA testers and l QA team lead is working on a project. The team finishes the job and is paid.

Learn more about the average here:

brainly.com/question/24057012

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1 year ago

When yeast is combined with flour and other ingredients to make pizza dough is a _____.

mihalych1998 [28]

Answer:

Chemical

Step-by-step explanation:

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3 years ago