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Naddik [55]
3 years ago
7

-2/3(8+1/2) please tell me whats the answer

Mathematics
2 answers:
kirill [66]3 years ago
7 0

i think it is 2/6 hope its right


babymother [125]3 years ago
6 0

- \frac{17}{3}

note that 8 + \frac{1}{2} = 8 \frac{1}{2} = \frac{17}{2}

then multiplying the values gives

- \frac{2}{3} × \frac{17}{2} ( cancelling the 2' s )

= - \frac{17}{3} = - 5 \frac{2}{3}


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1.A 2000 W toaster operates on a household circuit of 200 V. What is the resistance of the wire the make up the heating element
MakcuM [25]
P - power measured in watts
E - voltage measured in volts
I - current measured in amperes
R - resistance measured in ohms

E=IR
\\P=IE

1. P = 2000 W, E = 200 V, R = ?

P=IE
\\2000=I200 
\\I=10
\\E=IR
\\200=10R
\\R=20

2. P = 0.35 W, E = 150 V, R = ?

P=IE
\\0.35=I150
\\I= \frac{0.35}{150}
\\ E=IR
\\150=\frac{0.35}{150}R
\\R= \frac{150^2}{0.35}
\\R= 64285.71

4 0
4 years ago
Find the zero of the function by rewriting the function in intercept form
Marat540 [252]
Given a quadratic function
y = 4x² - 19x - 5
or i will write it as
4x² - 19x - 5 = y

Zero of the function is when y have the value of zero.
So the quadratic equation will be
4x² - 19x - 5 = y
4x² - 19x - 5 = 0

Now make the equation to intercept form by factorization
4x² - 19x - 5 = 0
(4x + 1)(x - 5) = 0   (this is intercept form)

Solution 1
4x + 1 = 0
4x = -1
x = -1/4

Solution 2
x - 5 = 0
x = 5

SUMMARY
-1/4 and 5 are zero function of f(x) = 4x² - 19x - 5
4 0
4 years ago
Please help me ill mark you as brainiset
Artyom0805 [142]

Answer: -$560

Step-by-step explanation: Ahem, So basically u divide -$5040 by 9 months and then you get -$560

Plz mark me brainliest it would mean so much! :)

8 0
3 years ago
Which is the best approximation of the solutions to the system of equations graphed below?
Neko [114]

According to the direct inspection, we conclude that the best approximation of the two solutions to the system of <em>quadratic</em> equations are (x₁, y₁) = (- 1, 0) and (x₂, y₂) = (1, 2.5). (Correct choice: C)

<h3>What is the solution of a nonlinear system formed by two quadratic equations?</h3>

Herein we have two parabolae, that is, polynomials of the form a · x² + b · x + c, that pass through each other twice according to the image attached to this question. We need to estimate the location of the points by visual inspection on the <em>Cartesian</em> plane.

According to the direct inspection, we conclude that the best approximation of the two solutions, that is, the point where the two parabolae intercepts each other, to the system of two <em>quadratic</em> equations are (x₁, y₁) = (- 1, 0) and (x₂, y₂) = (1, 2.5). (Correct choice: C)

To learn more on quadratic equations: brainly.com/question/17177510

#SPJ1

4 0
2 years ago
How to solve a log equation with variable in the exponent?
GREYUIT [131]
Example...

4^x = 16
log(4^x) = log(16)
x*log(4) = log(16)
x = log(16) / log(4)
6 0
4 years ago
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