3 years ago

Plz help it’s due today’s

Mathematics

1 answer:

mina [271]3 years ago

3 0

Answer:

% increase

Step-by-step explanation:

80(1.15) = 92

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Find the area of a sector with a central angle of 120° and a diameter of 7.3 cm. Round to the nearest tenth.

Andru [333]

Answer: $14cm^{2}$

Step-by-step explanation:

diameter=7.3cm

radius= $\frac{diameter}{2}$

= $\frac{7.3}{2}$

=3.65cm

angle =120°

area= $\frac{angle (tita)}{360}$ × $\frac{\pi r^{2} }{1}$

= $\frac{120}{360}$ × $\frac{22}{7}$ × $3.65^{2}$

= $13.95cm^{2}$

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4 years ago

Which graph decreases, crosses the y-axis at (0,-7), and then remains constant?

sergey [27]

Answer:

A.Graph B

Step-by-step explanation:

it decreases to a y of (0,-7) and then stays constant at -7

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4 years ago

HELP PLEASE WILL GIVE BRAINLIEST WORTH 50 POINTS

Alja [10]

Answer:

y = 8.13 x -16125.713

hope it helps

Step-by-step explanation:

Sum of X = 14004

Sum of Y = 977

Mean X = 2000.5714

Mean Y = 139.5714

Sum of squares (SSX) = 53.7143

Sum of products (SP) = 436.7143

Regression Equation = ŷ = bX + a

b = SP/SSX = 436.71/53.71 = 8.13032

a = MY - bMX = 139.57 - (8.13*2000.57) = -16125.71277

ŷ = 8.13032X - 16125.71277

8 0

3 years ago

Read 2 more answers

Anybody able to help out ????

kodGreya [7K]

Answer:

z=110

a=69

b=47

c=116

d=93

e=86

Step-by-step explanation:

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3 years ago

Express the ratio AC/DF in simplest form

murzikaleks [220]

Answer:

$\frac{n}{28 \: cm}$

Step-by-step explanation:

AC = n, DF = 28 cm

$\huge \red{ \frac{AC}{DF} }= \purple{ \frac{n}{28 \: cm}} \\$

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3 years ago