4 years ago

Brainly is the reward ! please help

Mathematics

1 answer:

GrogVix [38]4 years ago

8 0

What do you do hear......

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Sam brought brushes for $8,a palette for $5,and oil paints for $15.He paid 29.82 in all.What sale-tax rate did Sam pay?

sertanlavr [38]

8+5+15=28
29.82-28= 1.82 or 182%

5 0

4 years ago

Help me please I’ll mark brainliest thank you

jenyasd209 [6]

Answer:

11/15=x/240

240/15=16

11 x 16=176

11/15=176/240 or rather he completes 176 passes

Step-by-step explanation:

4 0

3 years ago

Can someone help me with this please

STALIN [3.7K]

You can’t evaluate that I’m pretty sure

8 0

3 years ago

F(x)=x+7<br> f(-1)<br> help!

DIA [1.3K]

Answer:

f(-1) = 6

Step-by-step explanation:

f(x) = x + 7 when x = -1

~Substitute

= (-1) + 7

~Simplify

= 6

Best of Luck!

7 0

3 years ago

If t a n squared θ = 3 /8 , what is the value of s e c θ

TEA [102]

We can use 3 facts:

$\tan{\theta}=\frac{y}{x}$

$\sec{\theta}=\frac{r}{x}$

$x^2+y^2=r^2$

So, to find our x and our y we can do:

$\tan^2{\theta}=\frac{3}{8} \implies \\ \tan{\theta}=\pm{\sqrt{\frac{3}{8}}=\pm\frac{\sqrt{3}}{\sqrt{8}}$ So, now that we know our x and our y we can find our r.

$(\sqrt{3})^2+(\sqrt{8})^2=11 \implies r=\sqrt{11}$

You'll notice, though, that there were two solutions for $\tan{\theta}$ , which means we have a positive and a negative for our x. So:

$\sec{\theta}=\frac{\sqrt{11}}{\sqrt{8}} \\ \sec{\theta}=-\frac{\sqrt{11}}{\sqrt{8}}}\\ \text{Rationalizing both of them:}\\ \sec{\theta}=\frac{\sqrt{88}}{8} \\ \sec{\theta}=-\frac{\sqrt{88}}{8}$

7 0

3 years ago

Read 2 more answers