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seropon [69]
4 years ago
12

The area of a rhombus is 90 square inches. If the longer diagonal measures 18 inches, what is the length of the shorter diagonal

?
A. 10 inches

B. 12 inches

C. 16 inches

D. 17 inches
Mathematics
1 answer:
lorasvet [3.4K]4 years ago
5 0
10 Inches

A = p q / 2

p = diagonal 1
q = diagonal 2

2A / q = p

Solve for p
180/18 = 10
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Veronica is saving money to by a saddle for her horse that costs 175 . She plans to save $10 the first month and then increased
JulijaS [17]
The answer is 12 I promise
5 0
4 years ago
Carla's plant was 10 2/3 inches tall. Yolanda's was 8 3/4 inches tall. How much taller was Carla's plant than Yolanda's?
Nitella [24]
It is easy to subtract fractions by converting them into decimals first. To convert is numerator divided by denominator. So, 10 1/2 would be 10.5 and 8 3/4 would be 8. 75. Now, you can subtract them. Start at the hundredth place so subtract 5 from 0 ( because 10.5 can also be 10.50) so it would be 5. Next,  5 -7 ( so you borrow 1 from 10 so 5 would become 15 and 10 is 9) is 7. Last, subtract your whole number. 9 - 8 = 1. So, your answer would be 1. 75. To convert it to fraction, you need to write it as 1 75/ 100 and simplify it which is 1 3/4. So, Carla's plant is 1 3/4 inches taller than Yolanda's plant Hope it helps!!!!
6 0
3 years ago
MR THOMAS TOOK HER FAMILY AND FRIEND TO THE MOVIES THERE WERE 16 PEOPLE . CHILDREN TICKERS COST $6 AND ADULTS TICKETS COST 9 SHE
il63 [147K]

Answer:

a = 374

Step-by-step explanation:

Given that:

Cost of children ticket = $6

Cost of adult ticket = $9

Total amount spent = $1219

Total number of people = 16

Let :

Children = c

Adult = a

a + c = 16 - - 1

6c + 9a = 1219 - - - 2

From 1

c = 16 - a

Using 2

6(16 - a) + 9a = 1219

96 - 6a + 9a = 1219

3a = 1123

a = 374.33

Adult = 374.33

The number should be a whole number, maybe there is a problem with the parameters given.

7 0
3 years ago
Can someone please help me so I can get to 7th grade math please thank you ❤❤
LuckyWell [14K]

Answer:

17/7 or 2(3/7)

Step-by-step explanation:

did it with a calculator

8 0
3 years ago
Read 2 more answers
In a 45-45-90 triangle, what is the length of the hypotenuse when the length of one of the legs is 11 in.?
slavikrds [6]
Part A)<span>In a 45-45-90 triangle, what is the length of the hypotenuse when the length of one of the legs is 11 in.?

we know that
</span>cos 45°=√2/2
[he length of the hypotenuse]=11/cos 45-----------> 11/(√2/2)----> (11*2)/√2
=22/√2-------> 11√2 in

the answer Part A) is 11√2 in

Part B) <span>What is the exact value of sin 45° ?
</span>
we know that
sin 45°=11/(11√2)-------> 1/√2---------> (1/√2)*(√2/√2)-----> √2/2
the answer part b) is √2/2

Part C)
<span>What is the area of a regular hexagon with a side length of 4 m?

we know that

</span>In case of a regular hexagon <span> each of the six triangles that are formed by connecting its center with all six vertices is an equilateral triangle with a side equaled to 4 m.
The area of this hexagon is six times greater than the area of such a triangle
</span>
In an equilateral triangle with a side d<span> 
the altitude </span>h can be calculate from the Pythagorean Theorem as
h²=d²−(d/2)²=(3/4)d²
<span>Therefore, 
</span><span>h=d<span>√3/2

</span></span><span>Area of such a triangle is
</span>A=d*h/2------------> d²*√3/4
From this the area of the regular hexagon with a side d<span> is
</span>S=6*A----------> d²3√3/2
for d=4 m
S=4²3√3/2------> 24√3 m²------------> 41.57 m²

the answer Part C) is 41.57 m²

Part D) <span>In a 30-60-90 triangle, what is the length of the hypotenuse when the shorter leg is 5 cm?
</span>[he length of the hypotenuse]=5/sin 30--------> 5/(1/2)---------> 10 cm

the answer part D) is 10 cm

5 0
3 years ago
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