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3 years ago

Evaluate the expression when b=2 . b⋅5 = Answer:

Mathematics

1 answer:

ddd [48]3 years ago

7 0

Answer:

$b*5 = 10$

Step-by-step explanation:

Given

$b = 2$

Required

Evaluate $b*5$

To do this, we simply substitute 2 for b in $b*5$

$b*5 = 2 * 5$

$b*5 = 10$

<em>The result of the expression is 10</em>

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Ellen is making plant boxes , each box uses 3/6 yard of wood what is the total length of wood ellen need to make 7 plant boxes?

Nikolay [14]

Answer:

3/6 7 times

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

1. Transform the polar equation to a Cartesian (rectangular) equation: 2. Transform the Cartesian (rectangular) equation to a po

MissTica

Answer:

Attachment 1 : 5x + 6y = 5, Attachment 2 : 4cotθcscθ

Step-by-step explanation:

Remember that we have three key points in solving these types of problems,

• x = r cos(θ)

• y = r sin(θ)

• x² + y² = r²

a ) For this first problem we need not apply the third equation.

( Multiply either side by 5 cos(θ) + 6 sin(θ) )

r $*$ ( 5 cos(θ) + 6 sin(θ) ) = 5,

( Distribute r )

5r cos(θ) + 6r sin(θ) = 5

( Substitute )

5x + 6y = 5 - the correct solution is option c

b ) We know that y² = 4x ⇒

r²sin²(θ) = 4r cos(θ),

r = 4cos(θ) / sin²(θ) = 4 cot(θ) csc(θ) = 4cotθcscθ - again the correct solution is option c

8 0

3 years ago

Unconditioned stimulus

fgiga [73]

Answer:

An unconditioned stimulus is a stimulus that leads to an automatic response.

3 0

3 years ago

An unfair coin has a probability of coming up heads of 0.65. The coin is flipped 50 times. What is the probability it will come

Lady bird [3.3K]

Answer: the probability it will come up heads 25 or fewer times is 0.019

Step-by-step explanation:

Given that;

n = 50

p = 0.65

so, q = 1 - p = 0.35

np = 50 × 0.65 = 32.5 ≥ 10

nq = 50 × 0.35 = 17.5 ≥ 10

so, we need to use Normal Approximation for the Binomial Distribution

μ = np = 50 × 0.65 = 32.5

σ = √(npq) = √( 50 × 0.65 × 0.35 ) = 3.3726

now, the probability that it will come up heads 25 or few times will be;

⇒ P( x≤25)

{using continuity correction}

⇒ P[ z < (25.5 - 32.5)/3.3726 ]

⇒ P[ z < -2.0755 ]

using z-table

= 0.01923 ≈ 0.019 { 3 decimal places}

Therefore the probability it will come up heads 25 or fewer times is 0.019

4 0

3 years ago

NEED THIS DONE ASAP!! Thank you!!

zvonat [6]

Answer:

$x=54^{\circ}$

Step-by-step explanation:

<u>Angles in the Same Segment</u>

The angles at the circumference subtended by the same arc are equal. Therefore, angles in the same segment are equal.

$\implies 2x-54=x$

$\implies 2x-54+54=x+54$

$\implies 2x=x+54$

$\implies 2x-x=x+54-x$

$\implies x=54^{\circ}$

3 0

2 years ago