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3 years ago

Which substance is a heterogeneous mixture? Cereal Silver Nickel Shampoo

2 answers:

7 0

It's definitely cereal because you can see the different contents, making it heterogeneous. The rest of the options, whether mixtures or natural elements, are homogeneous because all the contents come together nicely.

solong [7]3 years ago

6 0

Answer:

3.06 The answer is Cereal

Step-by-step explanation:

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In the diagram, what is the measure of angle 1 to the nearest degree?

julsineya [31]

7x+4=88
7x=84
x=12
7x-12=7*(12)-2=82
angle 1=180-82=98

5 0

3 years ago

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What is the solution to log Subscript 2 Baseline (9 x) minus log Subscript 2 Baseline 3 = 3

sdas [7]

The value of x is $\frac{8}{3}$

Explanation:

The expression is $\log _{2}(9 x)-\log _{2}(3)=3$

Adding $\log _{2}(3)$ to both sides of the equation, we get,

$\log _{2}(9 x)=3+\log _{2}(3)$

Using log definition, if $\log _{a}(b)=c$ then $b=a^{c}$ , we have,

$9 x=2^{3+\log _{2}(3)}$

Using exponent rule, $a^{b+c}=a^{b} a^{c}$ ,

$9x=2^{\log _{2}(3)} \cdot 2^{3}$

Simplifying, we have,

$9x=3\cdot8\\9x=24$

Dividing both sides by 9, we have,

$x=\frac{24}{9}$

Simplifying,

$x=\frac{8}{3}$

Thus, the value of x is $\frac{8}{3}$

5 0

4 years ago

Which expression is equivalent to x^4 + 4x^2 - 45?

Nikitich [7]

Answer:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

Step-by-step explanation:

The given expresion is

${x}^{4} + 4 {x}^{2} - 45 = 0$

We can rewrite this as:

$({ {x}^{2}) }^{2} + 4 {x}^{2} - 45 = 0$

We obtained a quadratic equation in x²

Let us split the middle term to get:

$({ {x}^{2}) }^{2} + 9 {x}^{2} - 5{x}^{2} - 45 = 0$

We factor by grouping to get:

${x}^{2} ( {x}^{2} + 9) - 5( {x}^{2} + 9) = 0$

We factor further to get:

$( {x}^{2} - 5)( {x}^{2} + 9) = 0$

The correct answer is A.

6 0

3 years ago

Solve for x.<br><br> x/8 - 2 = -3

victus00 [196]

Answer:

The correct answer is x = -8.

Step-by-step explanation:

To solve this equation, we want to get the variable x alone on the left side of the equation. To do this, we should first add 2 to both sides of the equation.

x/8 - 2 = -3

x/8 -2 + 2 = -3 + 2

x/8 = - 1

Next, we should multiply both sides of the equation by 8 to isolate the variable x.

x = -8

Therefore, the correct answer is x = -8.

If we want to check our answer, we can plug -8 back into the original equation.

-8/8 - 2 = -3

-1 -2 = -3

-3 = -3

Since the two sides match, we know that we got the correct answer.

Hope this helps!

5 0

3 years ago

The table shows the ratio of nuts to raisins in different snack mixes. Which graph shows these equivalent ratios?

riadik2000 [5.3K]

Answer:

figure 3

Step-by-step explanation:

see attached

x coordinates is the nuts

and y coordinates is the raisings

8 0

4 years ago

Read 2 more answers