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melisa1 [442]
3 years ago
5

Drag the tiles to the boxes to form correct pairs

Mathematics
1 answer:
sergiy2304 [10]3 years ago
3 0

( -  \frac{3}{4} )( \frac{7}{8} )

=  \frac{ - 3}{4}  \times  \frac{7}{8}

=  \frac{ - 21}{32}

_______________________________________

( \frac{2}{3} )( - 4)(9)

=  \frac{2}{3}  \times  - 4 \times 9

=  \frac{ - 72}{3}

=  - 24

_______________________________________

( \frac{5}{16} )( - 2)( - 4)( -  \frac{4}{5} )

=  \frac{5}{16}  \times  - 2 \times  - 4 \times  \frac{ - 4}{5}

=  \frac{ - 160}{80}

=  \frac{ - 16}{8}

=  - 2

_______________________________________

(2 \frac{3}{5} )( \frac{7}{9} )

=  \frac{13}{5}  \times  \frac{7}{9}

=  \frac{91}{45}

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30°-60°-90°<br> help me solve this please
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Answer:

the answer to 30-60-90=0

Step-by-step explanation:

90-60=30-30=0

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3 years ago
Sally's pet grooming business charges $5 per cat and $10 per dog for a pet bath. She earned $550 for pet baths last month. If 20
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45 dogs

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so she has $550 and she did 20 cats and it costs $5 per cat and 5 x 20 is $100 and $550 - $100 = 450 and 450 divided by 10 ( because it's $10 per dog) is 45.

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Match the vocabulary word with the correct definition.
svetlana [45]

Answer:

1. right triangle - a triangle with one angle that measures 90 degrees

2.radius- a line segment from the center of a circle to any point on the circle

3. ray- a part of a line that has 1 endpoint that goes in one direction forever

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Step-by-step explanation:

8 0
3 years ago
a company pays its salespeople $2,000 a month and a commission of 18% of their total sales (T). which of the following equations
SSSSS [86.1K]

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2,360

Step-by-step explanation:

18% of 2,000 is 360

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7 0
3 years ago
Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 10 Allen's hummingb
ruslelena [56]

Answer: provided in the explanation segment

Step-by-step explanation:

(a). from the question, we can see that since that б is known, we can use standard normal, z.

we are asked to find an 80% confidence interval for the average weights of Allen's hummingbirds in the study region. What is the margin of error?

⇒ 80% confidence interval for the average weight of Allen's hummingbirds is given thus;

x ± z * б / √m

which is

3.15 ± 1.28 * 0.32/√10

= 3.15 ± 0.1295 = 3.0205 or 3.2795

(b). normal distribution of weight (c) б is known

(c). option (a) and (e) are correct

(d).  from the question, let sample size be given as S

this gives';

1.28 * 0.32/√S = 0.15

√S = (1.28 * 0.32) / 0.15 = 2.73

S = 7.4529

cheers i hope this helps

6 0
3 years ago
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