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Ratling [72]
3 years ago
5

Help ASAP (Math) will give brainiest and points!!

Mathematics
1 answer:
nordsb [41]3 years ago
3 0

Answer:

2.17 \times 10^{-1}

Step-by-step explanation:

(7 \times 10 ^{-6}) + 0.26 - (5 \times 10^{-2}) = \frac{7}{10^3} + \frac{26}{10^2}-\frac{5}{10^2}

                                              = \frac{7 + (26 \times 10) - ( 5 \times 10)}{10^3}\\\\=\frac{7 + 260 - 50 }{10^3}\\\\=\frac{217}{10^3}\\\\= 2.17 \times 10^2 \times 10^{-3}\\\\= 2.17 \times 10^{-1}

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Does the equation below define a liner function​
Komok [63]
<h3>Answer: No, this function is not linear</h3>

This function is a hyperbola. It graphs out two disjoint curves. A linear function produces a single straight line graph. All linear functions can be written in the form y = mx+b. The x being in the denominator is one indicator we cannot write the original equation in the form y = mx+b.

y = 3/x is the same as xy = 3; this tells us every point on y = 3/x has its (x,y) coordinate pair multiply to 3.

8 0
4 years ago
Brian made a tasty burger. The diameter of the burger was 5 cm. What was the area of the burger?
Sindrei [870]
19.63cm2
Is the area of the burger!
5 0
3 years ago
Most evenings after dinner Duarte spends 30 minutes playing chess with his dad.
olasank [31]
T= total played
e= # evenings played
m= # minutes played

Total equals number of evenings played multiplied by number of minutes plated per evening.

EQUATION:
t=e * m

EQUATION (if 30 minutes per evening):
t=30e

Example:
3 nights, 30 minutes played

t= 3 * 30
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Hope this helps!  :)
7 0
3 years ago
A walking path across a park is represented by the equation y = -3x - 6. A
Brrunno [24]
I think y=-3x - 6 is right
5 0
3 years ago
Using complete square to slove for x in the equation (x+7) (x-9)=25
Brrunno [24]

Answer:

x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}

Step-by-step explanation:

Apply Distributive property:

(x+7)(x-9)=25\\\\x^2-9x+7x-63=25

Add like terms and then add 63 to both sides of the equation:

x^2-2x-63=25\\\\x^2-2x-63+63=25+63\\\\x^2-2x=88

Pick the coefficient of the x term, divide it by 2 and square it:

(\frac{2}{2})^2=1

Add it to both sides of the equation:

x^2-2x+1=88+1

Rewriting the left side as a squared binomial, we get:

(x-1)^2=89

Apply square root to both sides:

\sqrt{(x-1)^2}=\±\sqrt{89}\\\\x-1=\±\sqrt{89}

And finally we need to add 1 to both sides of the equation. Then we get:

x-1+1=\±\sqrt{89}+1\\\\x=\±\sqrt{89}+1\\\\\\x_1=1+\sqrt{89}\\\\x_2=1-\sqrt{89}

8 0
3 years ago
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