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2 years ago

HELP PLZ!!! A, B, C,or D.

Mathematics

1 answer:

Romashka-Z-Leto [24]2 years ago

7 0

Answer:

Step-by-step explanation:

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I need help with this

Yanka [14]

An yes

Step-by-step explanation:

2=2 is 5

7 0

3 years ago

Evaluate the expression for the given values of the variables.

pochemuha

The expression 9p − 8q for p = 4 and q = −8 is equal to 100

<h3><u>Solution:</u></h3>

Given that we have to evaluate expression for the given values of the variables

Expression is:

⇒ 9p − 8q

Given that p = 4 and q = -8

<em><u>Let us substitute the given values of p = 4 and q = -8 in given expression and evaluate it</u></em>

⇒ 9p − 8q = 9(4) - 8(-8)

⇒ 9p - 8q = 9(4) + 8(8)

Upon multiplying the terms we get,

⇒ 9p - 8q = 36 + 64 = 100

Thus the expression is equal to 100

5 0

3 years ago

A door with width 4.20m has an arc as shown in the diagram. Find: a) the radius of the arc, to the nearest cm. b) the length of

Ksju [112]

Hi there!

$R = \frac{2.1}{sin 67.5}$

$Arc = R$ $\frac{3\pi }{4}$

(A)

Hope this helped you!

5 0

2 years ago

Read 2 more answers

Identify the zeros of the function f(x) = 2x^2 − 4x + 5 using the Quadratic Formula

Nostrana [21]

For this case we have that by definition, the roots, or also called zeros, of the quadratic function are those values of x for which the expression is 0.

Then, we must find the roots of:

$2x ^ 2-4x + 5 = 0$

Where:

$a = 2\\b = -4\\c = 5$

We have to: $x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}$

Substituting we have:

$x = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (2) (5)}} {2 (2)}\\x = \frac {4 \pm \sqrt {16-40}} {4}\\x = \frac {4 \pm \sqrt {-24}} {4}$

By definition we have to:

$i ^ 2 = -1$

So:

$x = \frac {4 \pm \sqrt {24i ^ 2}} {4}\\x = \frac {4 \pm i \sqrt {24}} {4}\\x = \frac {4 \pm i \sqrt {2 ^ 2 * 6}} {4}\\x = \frac {4 \pm 2i \sqrt {6}} {4}\\x = \frac {2 \pm i \sqrt {6}} {2}$

Thus, we have two roots:

$x_ {1} = \frac {2 + i \sqrt {6}} {2}\\x_ {2} = \frac {2-i \sqrt {6}} {2}$

Answer:

$x_ {1} = \frac {2 + i \sqrt {6}} {2}\\x_ {2} = \frac {2-i \sqrt {6}} {2}$

3 0

3 years ago

Ema had 2/8 of a cookie, she wanted to share the rest of it equally with her friend; how many pieces will each friend get?

Nostrana [21]

Answer:0.125 or 1/8

Step-by-step explanation:

7 0

2 years ago