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Romashka-Z-Leto [24]
3 years ago
7

Identify a temperature colder than -7.2 F. Write an inequality that relates the temperatures. Describe their positions on a hori

zontal number line. (I'll give most of my points!!!)
Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
4 0
One temperature colder that -7.2 F would be -9 F.

-9 < -7.2


The -9 would be 1.8 units to the left of -7.2  on  the number line.
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Over the past ten years, the town's population doubled in size. The population is currently 12,000. What was the population ten
jeyben [28]

The answer is B

The population is P

If it doubled it is 2P or 2 times P and that equals 12,000

8 0
3 years ago
In Δ ABC and ΔXYZ ,∠B=∠X=90 and BC=XZ .What additional information is required to make Δ ABC congruent to ΔXYZ by R.H.S conditio
Pani-rosa [81]

Answer:

AC = XY

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. The types of triangles are scalene triangle, equilateral triangle, right angled triangle and obtuse triangle.

Two triangles are said to be congruent if all the three sides and three angles of one triangle is equal to the three sides and three angles of the other triangle.

In Δ ABC and ΔXYZ ,∠B=∠X=90. This means that triangle ABC and triangle XYZ are right angled triangle since one of their angles is 90 degrees.

The hypotenuse is the side opposite to right angle (90 degrees).

Therefore AC is the hypotenuse of triangle ABC and YZ is the hypotenuse of triangle XYZ.

If the hypotenuse and one leg of a right angled triangle is equal to the hypotenuse and leg of another right angled triangle, then the two triangles are congruent by RHS rule.

Since BC = XY, for Δ ABC congruent to ΔXYZ by R.H.S condition, the hypotenuse have to be equal, i.e. AC = XY

7 0
3 years ago
F(r)=3.14r to the 2nd.What is f(3)<br> A .28.26<br> B.88.74<br> C.12.14<br> D.18.84
Maksim231197 [3]

Answer:

  • A .28.26

Step-by-step explanation:

<u>Given</u>

  • f(r) = 3.14r²

<u>Solution for f(3)</u>

  • f(3) = 3.14*3² = 28.26
6 0
3 years ago
The figure below is a net for a triangular prism. Side a = 45 inches, side b = 14 inches, side c = 30 inches, and altitude d = 2
katrin [286]

Answer:

the answer is A.  2370 sq. in

Step-by-step explanation:

area of the triangles first

A = 1/2 ad

a = (45 in) (20 in)

a = 1/2 (900 sq in)

a = 450 sq in

***remember to multiply 450 * 2 because you have 2 triangles***

Total area of both triangles is 900 sq. in.

Find the area of the 3 rectangles A = LW

1st rectangle and 2nd rectangle

a = cb

a = (30 in) (14 in)

a = 420 sq in. (make sure you add this again in the Total Surface area)

3rd rectangle

a = ab

a = (45 in) (14 in)

a = 630 sq. in

Total Surface area = 2 (1/2 ad) + 2(cb) + (ab)

= 2 (450 sq. in) + 2 (420 sq. in) + 630 sq. in

= 900 sq. in + 840 sq. in + 630 sq. in

= 2370 sq. in

4 0
3 years ago
How many milligrams is equal to 85 grams?
My name is Ann [436]

Answer:

B. 85,000

Step-by-step explanation:

85 * 1000

= 85,000 mg.

3 0
3 years ago
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