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3 years ago

Quadratic equations of the form _____ can be solved using square roots

Mathematics

1 answer:

icang [17]3 years ago

6 0

Answer:

Step-by-step explanation:

Quadratic equations of the form (x - h)^2 + k = 0 can be solved using square roots: Take the square root of both sides, prefacing the right side with " ± "

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Can someone please help me with the question?

lys-0071 [83]

Answer:

y would be 90 degrees

Step-by-step explanation:

The triangle has a right angle which is where y is located. A right angle is usually 90 degrees.

6 0

3 years ago

Go step by step to reduce the radical. 112

Kryger [21]

Answer:

4 sqrt(7)

Step-by-step explanation:

sqrt(112)

We know sqrt(a*b) = sqrt(a) sqrt(b)

Look for perfect squares

sqrt(16*7)

sqrt(16)sqrt(7)

4 sqrt(7)

5 0

3 years ago

Read 2 more answers

Please help me guys anyone

tensa zangetsu [6.8K]

100/30=3.3*
9x3.3*=30
T=30 metres

4 0

3 years ago

About 99.7% of sixth-grade students will have

Brut [27]

Answer: About 99.7% of sixth-grade students will have

heights between <u>51.1</u> inches and <u>64.9</u> inches.

Step-by-step explanation:

According to the empirical rule, 99.7% of data falls within the three standard deviations from the mean.

Given : Mean: $\mu=58\text{ inches}$

Standard deviation:= $\sigma=2.3\text{ inches}$

Then, the 99.7% of sixth-grade students will have heights between

$\mu-3\sigma$ inches and $\mu+3\sigma$ inches

i.e. $58-3(2.3)$ inches and $58+3(2.3)$ inches

i.e. 51.1 inches and 64.9 inches.

5 0

4 years ago

Read 2 more answers

Billy bob uses a 10-square model to find 20% of 80. what is 20% of 80? EXPLAIN how Billy Bob can use this model to find 20% of 8

Dvinal [7]

Percentages are numbers that are units of 100

The value of 20% of 80 is 16

<h3>How to determine the percentage value</h3>

The model is not given.

However, the percentage value can still be calculated

The expression is given as:

$20\%\ of\ 80$

Express of as product

$20\%\ * 80$

Express 20 % decimal

$0.20* 80$

Evaluate the product

Hence, 20% of 80 is 16