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3 years ago

7 x 7 x 7 x 7 in exponential form?

Mathematics

2 answers:

pogonyaev3 years ago

8 0

7x7x7x7 written in exponential form would be 7^4 or 7 to the fourth power.
hope this helps .

Darya [45]3 years ago

3 0

Answer:

7^4

Step-by-step explanation:

Just take the number of sevens and put that number as an exponent.

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If pq = 23 and uv = 1/23, find the value of u×q×v×p. Explain which properties you used

zhannawk [14.2K]

Remember that multiplication is commutative, which means the order in which we multiply things doesn't matter.

The order of u × q × v × p (which we can abbreviate uqvp) isn't as important as the fact that we're multiplying all four values together. We could just as easily rewrite the expression as pquv, and it'd represent the same value.

To find this value then, we can simply multiply pq and uv - the values we already know - together.

If we start with the expression pq = 23, we can multiply either side by uv (taking advantage of the multiplication property of equality) to get

pquv = 23uv

And since we know that uv = 1/23, we can use the substitution property of equality to replace the uv on the right side with 1/23:

pquv = 23(1/23)

The inverse property of multiplication states that any number multiplied by its inverse (its reciprocal) gives us 1. 23 and 1/23 are reciprocals of each other, so 23(1/23) = 1, which means

pquv = 1

Finally, going back to the second paragraph, we can use the commutative property of multiplication to rearrange the left side of the equation, giving us the solution

uqvp = 1

3 0

3 years ago

Find (a) the value of q in radians (b) the area of the shaded region in cm²

Tresset [83]

Answer:

(a) 1.18

(b) 99.71

Step-by-step explanation:

to know the value of q in degrees we can use cosine of q

$\cos (q) = \frac{OR}{OQ}\\\\\cos (q) = \frac{5}{13}\\\\q = \cos^{-1}(\frac{5}{13})\\\\q \approx 67.38$

now to radians

the formula is

$x\times\frac{2\pi}{360}\\\\$

with x the degrees

$67.38\times \frac{2\pi}{360}\\\\=\frac{67.38\pi}{180}\\\\\approx 0.374\pi\\\\\approx 1.18$

so the measure of angle q is 1.18 radians

so now for part b

$A = \frac{r^2 \alpha }{2}\\\\$

with $\alpha$ being the central angle in radians

for degrees is the following

$A = \frac{\theta}{360}\times \pi r^2$

so we have

$A = \frac{13^2 (1.18)}{2}\\\\A = 99.71$ cm^2

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3 years ago

How to solve 3(5-e)+2=10

miss Akunina [59]

Simplifying 3(5 + -1e) + 2 = 10 (5 * 3 + -1e * 3) + 2 = 10 (15 + -3e) + 2 = 10 Reorder the terms: 15 + 2 + -3e = 10 Combine like terms: 15 + 2 = 17 17 + -3e = 10 Solving 17 + -3e = 10 Solving for variable 'e'. Move all terms containing e to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + -3e = 10 + -17 Combine like terms: 17 + -17 = 0 0 + -3e = 10 + -17 -3e = 10 + -17 Combine like terms: 10 + -17 = -7 -3e = -7 Divide each side by '-3'. e = 2.333333333 Simplifying e = 2.333333333

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3 years ago

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2.077× (10 to the -4th power) In Scientific notation PLEASE HELP

Paha777 [63]

0.0002077 because it’s to the negative power

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4 years ago

Avocados from mexico MAKE THIS BETTER THAN BOB COPY AND PASTE THIS!

Karo-lina-s [1.5K]

Answer:

swag