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3 years ago

Help please and thank you!!

Mathematics

1 answer:

Virty [35]3 years ago

5 0

Answer:

30 and 17

Step-by-step explanation:

Using Pythagoras' theorem, that is

The square on the hypotenuse of a right triangle is equal to the sum of the squares on the other 2 sides, thus

(1)

c² = 18² + 24² = 324 + 576 = 900

Take the square root of both sides

c = $\sqrt{900}$ = 30

(2)

c² = 8² + 15² = 64 + 225 = 289

Take the square root of both sides

c = $\sqrt{289}$ = 17

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On a map the distance between rip and Janeiro Brazil and San Jose Costa Rica is 4 inches.the scale on the map shows that 1 inch=

Vera_Pavlovna [14]

Answer:

The way a proportion is set is as follows;

$\dfrac{1 \ inch}{200 \ miles } = \dfrac{4 \ inches}{ Distance \ from \ Rio \ de \ Janeiro \ to \ San \ Jose}$

The Distance from Rio de Janeiro and San Jose Costa Rica is then found as 800 miles

Step-by-step explanation:

The dimension of the distance between Rio de Janeiro and San Jose Costa Rica = 4 inches

The map scale = 1 inch to 200 miles

To figure out how many miles it is or the actual distance from Rio de Janeiro and San Jose Costa Rica, we have;

$\dfrac{1 \ inch}{200 \ miles } = \dfrac{4 \ inches}{ Distance \ from \ Rio \ de \ Janeiro \ to \ San \ Jose}$

Therefore, we have;

(4 inches × 200 miles)/(1 inche) = Distance from Rio de Janeiro and San Jose Costa Rica

Which gives;

Distance from Rio de Janeiro and San Jose Costa Rica = 800 miles.

4 0

3 years ago

A pancake recipe calls for 4 cups of flour and 3 cups of milk.Does a recipe calling for 2 cup of flour and 1.5 cups milk use the

kolbaska11 [484]

Yes, because if you divide 4 and 3 by 2, you get 2 and 1.5

5 0

3 years ago

Read 2 more answers

Question 9 (1 point)

Lisa [10]

Step-by-step explanation:

the answer is on the photo above

3 0

3 years ago

What multiplies to -12 but added together equals -10

Airida [17]

Let the two numbers be x and y, then,
xy = -12 . . . (1)
x + y = -10 . . . (2)
From (2), x = -10 - y . . . (3)
Putting (3) into (1), gives
(-10 - y)y = -12
-10y - y^2 = -12
y^2 + 10y - 12 = 0
$y= \frac{-10\pm \sqrt{10^2-(4\times(-12))} }{2} = \frac{-10\pm \sqrt{148} }{2} = \frac{-10\pm 2\sqrt{37} }{2} = -5\pm\sqrt{37}$

Therefore, the two numbers are $-5+\sqrt{37}$ and $-5-\sqrt{37}$

4 0

3 years ago

Before Can broke his right arm, he was able to type 9 words per minute on his phone. After he broke his arm, he had to use his l

Len [333]

9 times 5 is 45

6 times 5 is 30

Difference is 15

5 0

3 years ago