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2 years ago

Is 2.5/4 proportional with 7/11.2

Mathematics

1 answer:

AlexFokin [52]2 years ago

4 0

Answer: Only if their cross products are equal.

If 2.5 x 11.2 = 4 x 7 then they form a proportion.

And the answer is yes

because both cross products are 28.

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If angle 1 and angle 2 are complementary angles and if the measures of angle 1 is 8 more than the measure of angle 2 determine t

babunello [35]

Answer:

41° and 49°

Step-by-step explanation:

Given:

Angle 1 and angle 2 are complementary angles.

The measures of angle 1 is 8 more than the measure of angle 2.

Question asked:

Determine the measures of angle 1 and 2.

Solution:

Let ∠1 = $x$

Then ∠2 = $x+8$ (given)

As we know that sum of complementary angles are 90° and here given that angle 1 and angle 2 are complementary angles which means,

∠1 + ∠2 = 90°

$x+x+8=90$ °

$2x +8=90$ °

Subtracting both sides by 8,

$2x=90$ ° $-8$

$2x = 82$ °

Dividing both sides by 2,

$x=41$ °

∠1 = $x=41$ °

∠2 = $x+8$

∠2 = $41+8$ = 49°

Therefore, the measures of angle 1 and 2 are 41° and 49°

3 0

2 years ago

Please help!!!

Evgesh-ka [11]

D because you need to make the denominators have a common multiple.

5 0

2 years ago

6 mi Find the volume for the shape above. Use 3.14 for pi. Round to the nearest whole number.

vodka [1.7K]

Answer:

Step-by-step explanation: does anyone know? I really need this

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2 years ago

The average time between infection with the AIDS virus and developing AIDS has been estimated to be 8 years with a standard devi

Dahasolnce [82]

Answer:

1/40

Step-by-step explanation:

3 0

2 years ago

Find the slope between the pair of points (1,3) and (7,2)

agasfer [191]

Answer:

$\bold{m=-\dfrac16}$

Step-by-step explanation:

$\bold{slope\, (m)=\dfrac{change\ in\ Y}{change\ in\ X}=\dfrac{y_2-y_1}{x_2-x_1}}$

(1, 3) ⇒ x₁ = 1, y₁ = 3

(7, 2) ⇒ x₂ = 7, y₂ = 2

So the slope:

$\bold{m=\dfrac{2-3}{7-1}=\dfrac{-1}6=-\dfrac16}$

5 0

2 years ago