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2 years ago

13

8x10^4 is how many times as large as 4x10^-5

1 answer:

Tresset [83]2 years ago

7 0

Answer:

Dccr5-5#8-5#2##5#5#8##6

Step-by-step explanation:

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Please show me how to solve for Xsquared - 21.75X = -15.75. I have the solution but do not know how to solve it.

Andreas93 [3]

$x^2-21.75x=-15.75 \\
x^2-21.75x+15.75=0$

Use the quadratic formula:
$x^2-21.75x+15.75=0 \\ \\
a=1 \\ b=-21.75 \\ c=15.75 \\ b^2-4ac=(-21.75)^2-4 \times 1 \times 15.75=473.0625-63=410.0625 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-(-21.75) \pm \sqrt{410.0625}}{2 \times 1}=\frac{21.75 \pm 20.25}{2} \\
x=\frac{21.75-20.25}{2} \ \lor \ x=\frac{21.75+20.25}{2} \\
x=\frac{1.5}{2} \ \lor \ x=\frac{42}{2} \\
x=\frac{15}{20} \ \lor \ x=21 \\
x=\frac{3}{4} \ \lor \ x=21 \\
\boxed{x=\frac{3}{4} \hbox{ or } x=21}$

3 0

2 years ago

You have two spinners

dem82 [27]

Answer:

There is a $\frac{1}{12}$ chance of the spinner landing on red, then three.

Step-by-step explanation:

So the first one has a $\frac{1}{4}$ chance, since there are four possibilities.

The second one has a $\frac{1}{3}$ chance, since there are three possibilities.

So, we just need to combine them.

$\frac{1}{4} *\frac{1}{3} =\frac{1}{12}$

Have a nice day. Please mark brainliest!

3 0

3 years ago

Find the area of this figure! (Don’t give me a big explanation, i have 30 mins to get this ixl to 90, currently at 74)

Evgen [1.6K]

315 m²

<u><em>area of rec + area of rec + area of rec + area of triangle</em></u>

⇒ length + width + length + width + length + width + 1/2 * base * height

⇒ 19 * 6 + 9 * 9 + 18 * 5 + 1/2 * 12 * 5

⇒ 90 + 30 + 81 + 114

⇒ 315 m²

5 0

1 year ago

Read 2 more answers

If m ∥ k and m ∥ ℓ, then _____

saul85 [17]

Answer:

$\large\huge\boxed{\text{If}\ m\ ||\ k\ \text{and}\ m\ ||\ l,\ \text{then}\ k\ ||\ l}$

4 0

2 years ago

In a cricket match, Rajat scored thrice as many runs as Devansh.

Rina8888 [55]

Answer:

let jivesh score x runs so rajat scores 3x runs

total runs = 300-8 = 292 runs

so x+3x = 292

4x = 292

x = 292/4

x = 73

so jivesh score 72 runs and rajat scores 216 runs

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers