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4 years ago

Can someone figure out the problem in this image?

Mathematics

1 answer:

erma4kov [3.2K]4 years ago

7 0

Right side:
(1/27)^(2x+10)
=(3^-3)^(2x+10)
= 3^(-6x - 30)

Re-write both sides:
3^(4x-5) = 3^(-6x - 30)

from here, you can solve x

4x - 5 = -6x - 30
4x + 6x = -30 + 5
10x = -25
x = -2.5

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The radius of a circle is 4 in what is the diameter and the circumference?

Anna007 [38]

Answer:

diameter is 8 circumference is 25.12

Step-by-step explanation:

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3 years ago

Simply (tan^2 x - sec^2 x)(sin^2 x + cos^2 x)

kati45 [8]

we can use pythagorean identieis

remember that $sin^2(x)+cos^2(x)=1$

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so if we take $sin^2(x)+cos^2(x)=1$ and divide both sides by $cos^2(x)$ we get

$\frac{sin^2(x)}{cos^2(x)}+\frac{cos^2(x)}{cos^2(x)}=\frac{1}{cos^2(x)}$

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6 0

3 years ago

NEED TO KNOW ASAP<br> Which of the following is a quadratic inequality?<br> Oy<2x+7<br> Oy Oy

Burka [1]

Answer:

Step-by-step explanation:

A quadratic inequality is one that involves a quadratic polynomial.

<h3>Identification</h3>

The degree of a polynomial is the value of the largest exponent of the variable. When the degree of a polynomial is 2, we call it a <em>quadratic</em>.

For the following inequalities, the degree of the polynomial in x is shown:

y < 2x +7 . . . degree 1
y < x^3 +x^2 . . . degree 3
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<h3>Application</h3>

We see that the degree of the polynomial in x is 2 in ...

y < x^2 -5x

so that is the quadratic inequality you're looking for.

<em>Additional comment</em>

When a term involves only one variable, its degree is the exponent of that variable: 5x^3 has degree 3. When a term involves more than one variable, the degree of the term is the sum of the exponents of the variables: 8x^4y3 has degree 4+3=7.

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2 years ago

The Walter family budgets the maximum amount of $124 for a camping trip. Mr. Walter already spent $40. How many people, x, can g

saul85 [17]

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4 0

3 years ago

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Look at the equation below. How many solutions are there?<br><br> 2(3x+4)=6x+8)

SOVA2 [1]

Answer:

x∈R

Step-by-step explanation:

2(3x+4)=6x+8

Use the distributive property to multiply 2 by 3x+4.

6x+8=6x+8

Subtract 6x from both sides.

6x+8−6x=8

Combine 6x and −6x to get 0.

8=8

Compare 8 and 8.

True

This is true for any x.

x∈R

6 0

3 years ago

Read 2 more answers