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3 years ago

What is 10 / 2 + (2x4) -3 ?

Mathematics

2 answers:

adell [148]3 years ago

6 0

Answer:

Step-by-step explanation:

10 / 2 = 5

(2x4) = 8

(5 + 8) - 3

13 - 3

topjm [15]3 years ago

3 0

Answer:

Step-by-step explanation:

5+8-3=10

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Can someone help me on this pls? It’s urgent, so ASAP (it’s geometry)

SashulF [63]

<u>Question 2</u>

1) $\overline{PR} \perp \overline{QS}$ , $\overline{PQ} \cong \overline{PS}$ (given)

2) $\overline{PR} \cong \overline{PR}$ (reflexive property)

3) $\angle PRQ$ and $\angle PRS$ are right angles (perpendicular lines form right angles)

4) $\triangle PRQ$ and $\triangle PRS$ are right triangles (a triangle with a right angle is a right triangle)

5) $\triangle PRQ \cong \triangle PRS$ (HL)

Question 3

1) $\angle C$ is a right angle, $\overline{AC} \cong \overline{AE}$ , $\overline{DE} \perp \overline{AB}$ (given)

2) $\angle DEA$ is a right angle (perpendicular lines form right angles)

3) $\triangle ACD$ and $\triangle DAE$ are right triangles (a triangle with a right triangle is a right angle)

4) $\overline{AD} \cong \overline{AD}$ (reflexive property)

5) $\triangle ACD \cong \triangle AED$ (HL)

6) $\angle CAD \cong \angle DAE$ (CPCTC)

7) $\overline{AD}$ bisects $\angle BAC$ (if a segment splits an angle into two congruent parts, it is an angle bisector)

7 0

2 years ago

What is 0.12 times 105<br> Pls help

spayn [35]

Answer:

12.6

Step-by-step explanation:

Use long multiplication to evaluate.

4 0

3 years ago

Read 2 more answers

The ages (in years) and weights (in pounds) of all wide receivers for a football team are listed. Find the coefficient of variat

IceJOKER [234]

Answer:

The coefficient of variation for the weight and age are 5.9% and 10.6%.

Step-by-step explanation:

The coefficient of variation (CV) is well defined as the ratio of the standard deviation to the mean. It exhibits the degree of variation in association to the mean of the population.

The formula to compute the coefficient of variation is:

$CV=\frac{\sigma}{\mu}\times 100\%$

Here σ = standard deviation and µ = mean.

Compute the mean and standard deviations of the two data set in Excel using the following functions.

Mean=AVERAGE()

Standard deviation=STDEV.S()

Consider the Excel sheet attached.

The mean and standard deviation of weight are:

Mean = 202, Standard deviation = 11.87

And the mean and standard deviation of weight are:

Mean = 25.88, Standard deviation = 2.75

Compute the coefficient of variation for the weight as follows:

$CV_{weight}=\frac{\sigma}{\mu}\times 100\%$

$=\frac{11.87}{202}\times 100\%\\\\=5.87624\\\\=5.9\%$

Compute the coefficient of variation for the age as follows:

$CV_{age}=\frac{\sigma}{\mu}\times 100\%$

$=\frac{2.75}{25.88}\times 100\%\\\\=10.62597\\\\=10.6\%$

Thus, the coefficient of variation for the weight and age are 5.9% and 10.6%.

8 0

3 years ago

Use properties of exponents to write an equivalent expression

Kazeer [188]

First u multiply the numbers in side the parantesis
3³ which is 3•3•3= 9•3=27
next u put the answer back in the parantesis and then multiply using the third power to get the final answer.
(27)³ = ( 27•27•27)= 19683

5 0

3 years ago

Write -0.39 repeating as a fraction in simplest form.

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

Do you mean -0.3999..., or -0.393939... ?

-0.3999... = -⅖

-0.393939... = -13/33

6 0

3 years ago