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Alecsey [184]
2 years ago
12

If u answer please I will mark you as brainliest answer....

Mathematics
1 answer:
Irina18 [472]2 years ago
6 0
I would say (C.) because the scientist only looked for the presence for both not just nickel or just lead.
Hope that helps.......if wrong I apologize.
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( CORRECT ANSWER GETS BRAINLIEST AND FULL RATINGS !!!)
ozzi

Answer:

a . 1/13      

Step-by-step explanation:

6 0
3 years ago
Given: ABCD is a trapezoid with AB || DC. If m∠A = 125 and m∠B = 99, find m∠C/
Pavlova-9 [17]

Answer:

The measure of angle C is 81\°

Step-by-step explanation:

we know that

If AB || DC

then

m -----> supplementary angles by consecutive interior angles

and remember that the sum of the interior angles in a trapezoid is equal to 360 degrees

m

step 1

Find the measure of angle D

m

substitute the measure of angle A

125\°+m

m

step 2

Find the measure of angle C

m

substitute the values

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5 0
3 years ago
The perimeter of a rectangular park is 300 feet. The length of the park is 50 feet longer than the width.
bixtya [17]

Answer:

85 feet

Step-by-step explanation:

P=2L+2W where L is the length and W is the width. If the length is 50 feet longer than the width, we can write the expression L=50+W. Substituting into P=2L+2W we get P=2(50+W)+2W=100+2W+2W=100+4W. Since P=300, we can say 300=100+4W. Subtracting 100 from each side we get 200=4W. Dividing each side by 4 gives 50=W. Substituting this into L=50+W gives L=50+35=85. The length is 85 feet.

3 0
2 years ago
What is the ratio of the number of sides of a quadrilateral to the number of sides of a pentagon?
IgorC [24]
4:5 because a quadrilateral has 4 sides and a pentagon has 5 sides
3 0
3 years ago
Find the X and the Y intercept of <br> 4x-y=12
Mashcka [7]

Answer:

x-intercept:  (3,0)  

y-intercept: (0, -12)

I hope this helps!

7 0
3 years ago
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