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Natali [406]
3 years ago
10

What is

="absmiddle" class="latex-formula">
6280 \div 30
​
Mathematics
1 answer:
marishachu [46]3 years ago
8 0
The first one is132.8
The second one is209.3
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If the perimeter of a rhombus is 164 and the length of the longer diagonal is 80, find the length of the shorter diagonal.
AysviL [449]

A rhombus has four equal sides. If the perimeter of this rhombus is 164, then the length of one side is 164/4, or 41.


Draw this rhombus. Label all four sides with "41." Label the longer diagonal 80 and the half length of that diagonal 40. You will see inside the rhombus four congruent triangles with hypotenuse 41, leg 10 and unknown height. Thus, this unknown height is found by solving x^2 + 40^2 = 41^2, and x^2=9, so that the length of the shorter diagonal is 2(2) = 18 (answer).

6 0
3 years ago
Tom has saved $128, and his goal is to save $500. How much more must he save? Which equation BEST represents this situation?
Jet001 [13]
I think the answer is A
3 0
3 years ago
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Find the volume of the cone​
irina1246 [14]

Answer:

The volume of the cone is 12936 cubic mm.

Step-by-step explanation:

Given

Circumference of base = 132 mm

Height of the cone = 28 mm

Solution

Formula  of circumference = 2\pi r = 132 mm

\therefore\ r= \frac{132}{2 \pi } = 21 mm

Now volume of cone = \frac{1}{3} \times\pi \times r^{2} \times h

on substituting the value of r and h  we get ;

\frac{1}{3}\times\frac{22}{7} \times21\times21\times28= 12936\ mm

thus volume of cone is 12936  cubic mm.

4 0
3 years ago
9a - 3 (a - 6) = -6 a=___
leonid [27]
9a - 3(a - 6) = -6...distribute thru the parenthesis
9a - 3a + 18 = -6....subtract 18 from both sides
9a - 3a = -6 - 18 ...combine like terms
6a = - 24...divide both sides by 6
a = -24/6
a = - 4
7 0
3 years ago
If 3 3/4 pounds of candy costs $20.25, How much does 1 pound of candy cost?
Illusion [34]

Answer:

5.40 dollars

Step-by-step explanation:

3 3/4 lb= $20.25

1lb=?

Cross multiply

20.25* 1/ 3 3/4

Which is 5.4

The answer is 5.40 dollars

3 0
3 years ago
Read 2 more answers
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