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3 years ago

Which of the following expressions has a coefficient of 10 and a constant of 5

Mathematics

1 answer:

adell [148]3 years ago

8 0

Answer:

sometinng like x^2+ 10x+5

The single number is the constant and the number before the variable(x) is the coefficient

Step-by-step explanation:

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Find the 66th term of the arithmetic sequence -28,-45, -62,-

Alexeev081 [22]

Answer:

-1133

Step-by-step explanation:

Formula for nth term

aₙ = a + (n - 1)d

Finding d

d = -45 - (-28)
d = -45 + 28
d = -17

Solving for a₆₆

a₆₆ = -28 + 65(-17)
a₆₆ = -28 - 1105
a₆₆ = -1133

6 0

2 years ago

Read 2 more answers

Can someone make sure that the first one is right and can someone help me with the second one please I need to get this right pl

VLD [36.1K]

Answer:

1. B

2. A

Step-by-step explanation:

1. Here, the figure is reflected over the line depicted. This answer is correct.

2. Here the image shifts down and across, making it a glide.

3 0

3 years ago

The following triangle shows the length of each side using expressions.

grigory [225]

Answer:

A). 2(2n+7)+3n

B). 2(2(8)+7)+3(8)
2(16+7)+ 24
2(23)+24
46+24
70

4 0

3 years ago

Find the perimeter of this semi-circle with radius, r = 12cm. Give your answer as an expression in terms of π .

Naddika [18.5K]

Answer:

$12π$

Step-by-step explanation:

Perimeter of the semi-circle:

$\frac{2 \times 12 \timesπ }{2} = 12π$

4 0

2 years ago

two buildings are 60 feet apart across a street. A person on top of the shorter building finds the angle of elevation of the roo

AysviL [449]

Answer:

The height of the taller building is $64\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the value of h1

with the angle of elevation

we know that

$tan(20\°)=\frac{h1}{60}$

$h1=60*tan(20\°)$

step 2

Find the value of h2

with the angle of depression

we know that

$tan(35\°)=\frac{h2}{60}$

$h2=60*tan(35\°)$

step 3

Find the height of the taller building

The height of the taller building is the sum of h1 plus h2

$60*tan(20\°)+60*tan(35\°)=60*(tan(20\°)+tan(35\°))=64\ ft$

7 0

4 years ago