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Tanzania [10]
3 years ago
14

Which equation is in standard form?

Mathematics
1 answer:
zheka24 [161]3 years ago
5 0
The answer is gonna be "D"
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The ratio of boys to girls in a class room is 5 to 7. If there are 30 boys then how many girls are there
Brums [2.3K]

Answer:

The ratio of boys to girls to 5:7

Let the number of boys be 5x

Let the number of girls be 7x

5x = 30

x = 6

Now just plug in 6 for the x in 7x

and number of girls 7 x 6 = 42

4 0
3 years ago
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Use abc to find the value of sin a
kolbaska11 [484]

sin α = opposite leg/ hypotenuse

For ΔABC,

sin A = |BC|/|AB|

sin A = 12/37

7 0
3 years ago
By the definition of complementary angles, since
svlad2 [7]

The blank spaces in the task content can be filled with; Substitution property, 90° and subtraction property.

<h3>What are the missing statements in the proof?</h3>

Since it follows from the vertical angles theorem that angle 1 = angle 4 as they are congruent.

Additionally, angles 1 and 2 are said to be complementary and hence, the sum of their measures is equal to 90°.

Finally, by virtue of the subtraction property of equality, the measure of angle 2 is; 90° - 40° = 50°.

Read more on complementary angles;

brainly.com/question/16281260

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8 0
2 years ago
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What is the most specific name for quadrilateral PQRS? parallelogram rectangle rhombus square
Anarel [89]

Answer:rhombus

Step-by-step explanation:

3 0
3 years ago
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while baking cookies, william accidentally over baked and burned many of the cookies. His "burned ro unburned" rstio was 1 to 3.
ryzh [129]
<h3>Given</h3>

burned : unburned = 1 : 3

<h3>Find</h3>

burned/total as a percentage

<h3>Solution</h3>

burned : total = burned : (burned + unburned) = 1 : (1+3) = 1 : 4

As a fraction, this is 1/4 = 0.25 = 25%

25% of the total cookies were burned.

_____

"%" is a fancy way to write "/100". You know from place value that 0.25 (twenty-five hundredths) is 25/100, so that can also be written as 25%.

3 0
3 years ago
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