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wolverine [178]
4 years ago
10

Find the measure of angle b

Mathematics
1 answer:
pychu [463]4 years ago
6 0

Answer:

I'm guessing it would be 48⁰ since it looks like I was 90⁰ so 90⁰ minus 42⁰ is 48⁰ sorry if its wrong brain is having a brain fart

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Evaluate 12 : (6 – 2) + 12
dimaraw [331]

Answer: 16

Step-by-step explanation:

6−2+12

=4+12

=16

3 0
3 years ago
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How many bucketloads would it take to bucket out the world’s oceans? Write your answer in scientific notation.
kodGreya [7K]

Answer: 7\times10^{19} buckets

Step-by-step explanation:

Given:  A cubic kilometer=10^{15}cubic centimeters

The volume of  world’s oceans=1.4\times10^{9} cubic kilometers of water.

⇒ The volume of  world’s oceans=1.4\times10^{9}\times10^{15} cubic centimeters of water.

Volume of a bucket = 20,000 cubic centimeters of water.

The number of bucket-loads would it take to bucket out the world’s oceans

n=\frac{\text{volume of ocean}}{\text{volume of bucket}}=\frac{1.4\times10^{9}\times10^{15}}{20000}

\Rightarrow\ n=\frac{1.4\times10^{9+15}}{0.2\times10^5}......[a^n\times a^m=a^{m+n}]\\\Rightarrow\ n=7\times10^{24-5}.....[\frac{a^m}{a^n}=a^{m-n}]\\\Rightyarrow\ n=7\times10^{19}

hence,  7\times10^{19} bucketloads would it take to bucket out the world’s oceans.

5 0
3 years ago
An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What ra
sdas [7]

Answer:

82.62

Step-by-step explanation:

Mean score (μ) = 80

Standard deviation (σ) = 5

The 70th percentile of a normal distribution has an equivalent z-score of roughly 0.525.

For any given score, X, the z-score can be determined by:

z=\frac{X-\mu}{\sigma}

For z = 0.525:

0.525=\frac{X-80}{5}\\ X=82.62

A raw score of approximately 82.62 corresponds to the 70th percentile.

6 0
3 years ago
Read 2 more answers
The perimeter of a parallelogram is 70 cm. If the ratio of the
Greeley [361]

Step-by-step explanation:

Perimeter of the parallelogram =2(l+b)

Length =3x and Breadth = 2x

So,

2(3x+2x)=70cm

2*5x=70cm

5x=70 divided by 2,35

5x=35

x= 35 divided by 5, 7

X=7cm.

Length =3x=3*7=21cm

Breadth =2x=2*7=14cm

Please mark my answer as the BRAINILIEST and follow me too

5 0
3 years ago
10 (w-4)=4 (w+4)+4w​
eimsori [14]

Answer:

w = 28

Step-by-step explanation:

10(w-4) = 4(w+4)+4w

1. distribute

10w - 40 = 4w +16 +4w

2. collect like terms

10w -4w - 4w = 40 +16

3. solve

2w = 56

w = 28

:D

8 0
3 years ago
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