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3 years ago

6th grade math help me pozzzz

Mathematics

1 answer:

Sonja [21]3 years ago

3 0

Answer:

t= -9/10= -0.900

Step-by-step explanation:

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16−5a+2a−1=41−a<br> what is a?

krek1111 [17]

Answer:

a=-13

Step-by-step explanation:

16−5a+2a−1=41−a

16-1-41 = 5a-2a-a

-26 = 2a

a= -26/2

a=-13

7 0

3 years ago

1/2 or (1/2)² which value is greater

Ket [755]

Answer:

when a expression is squared (²) that means it is multiplyed by itself.

Step-by-step explanation:

(1/2)² = (1/2 x 1/2)

1 squared = 1

2 squared = 4

1/4 is smaller than 1/2. 1/2 is greater than (1/2)²

3 0

3 years ago

An exterior angle of a regular convex polygon is 40°. What is the number of sides of the polygon?

seraphim [82]

Answer:

option B

Step-by-step explanation:

Sum of interior angles of a polygon with n sides:

$= (n - 2 )\times 180$

$Therefore, Each \ interior \ angle = (\frac{n - 2}{n} )\times 180$

$Sum \ of \ one \ of \ the \ interior \ angle \ with \ its \ exterior \ angle \ is \ 180^\circ$

$[ \ because \ straight \ line \ angle = 180^\circ \ ]$

That is ,

$Exterior \ angle + Interior \ angle = 180^\circ\\\\40^ \circ + (\frac{n-2}{n}) \times 180 = 180^\circ\\\\40 n + 180n - 360 = 180n\\\\40n = 180n - 180n + 360 \\\\40n = 360 \\\\n = 9$

Sum of exterior angles of a regular polygon = 360

Given 1 exterior angle of the regular polygon is 40

Therefore ,

$n \times 40 = 360\\\\n = \frac{360}{40} \\\\n = 9$

8 0

3 years ago

Write two numbers that multiply to −33 and add to 8

cupoosta [38]

Answer:

-3 and 11

Step-by-step explanation:

3 0

2 years ago

Fresh Express

kolbaska11 [484]

Answer: £245

Step-by-step explanation:

24.5 hours from wednesday to saturday

24.5 X 10 = 245

4 0

3 years ago