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3 years ago

Please help! this is unit 1 practice test 1 geometry basics

Mathematics

1 answer:

Alex_Xolod [135]3 years ago

5 0

10. complementary
11. complementary
12. x = 7
13. x =1

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Can someone please answer this for me

MaRussiya [10]

Answer:

BC = 1.7

Step-by-step explanation:

Since, cosine of any angle (except right angle) represents the ratio of base length and hypotenuse.

Cosθ = $\frac{\text{Base}}{\text{Hypotenuse}}$

From the given right triangle ΔACB,

$\text{Cos}(\angle B) = \frac{\text{Base}}{\text{Hypotenuse}}$

$=\frac{BC}{AB}$

Cos(70°) $=\frac{BC}{5}$

BC = 5Cos(70°)

= 1.71

≈ 1.7

8 0

3 years ago

(9.r + 1)<br> (11x - 23),<br><br> Help me please

12345 [234]

Answer

X= 8 i answered it as fast as possible

6 0

4 years ago

Solve for n.<br> d=5m +11n

Serhud [2]

Answer:

$n=-\frac{5m}{11} +\frac{d}{11}$ or $n=\frac{d}{11}-\frac{5m}{11}$

Step-by-step explanation:

d=5m+11n

-11n=5m-d

11n=-5m+d

$n=-\frac{5m}{11} +\frac{d}{11}$

It won't be wrong if you also put $n=\frac{d}{11}-\frac{5m}{11}$

6 0

3 years ago

Create a scenario that leads to an inequality of the form ax + b > c

blagie [28]

Answer:

Johnny wants to buy a game but he doesn't have enough money. He needs to have at most $60 to buy his game. He has $5 in his piggy bank and gets $11 for every hour for working. Write an inequality where x represents his hours.

11x + 5 ≤ 60

Not that good but its better than nothing.

4 0

3 years ago

PLEASE HELP ! (2/5) -50 POINTS -

qwelly [4]

Answer:

symmetric

Step-by-step explanation:

it kind of evenly falls to the left and right from the highest value in the middle

skewed would be different and would look like a straight line not a quadratic equation

5 0

3 years ago

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