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andrew-mc [135]
3 years ago
15

Don't really understand how to solve please help <3​

Mathematics
1 answer:
valina [46]3 years ago
8 0
This is how the first one would be done. sorry if it’s a little messy the answer is 9. but try using photomath for the rest. it gives you the answer and explains how to do it

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How much interest would be earned on $3,700 in one year if it is invested at 4%?
malfutka [58]
I'd say $148 because you convert the percent into a decimal so
4%= 0.04

Then you multiply $3,700•0.04 = $148

So I'd say the interest earned on $3,700 in one year would be $148
8 0
3 years ago
Find the area of a triangle whose sides are 35 cm, 45 cm and 50 cm.
Morgarella [4.7K]

Answer:To find out the Area of a scalene triangle whose three sides are given, first find out the half perimeter

s = (a+b+c)/2

where a, b, and c are the length of the three sides of a triangle

s = (35 + 45 + 50) / 2

  = 130 / 2

  = 65 cm

Area of scalene triangle is given by

A = sqrt (s (s - a) (s - b) (s - c))

   = sqrt (65 * (65 - 35) ( 65 - 45) (65 - 50))

   = sqrt (65 * 30 * 20 * 15)

   = sqrt (585000)

   = 764.853 sq cm

Step-by-step explanation:

4 0
2 years ago
If f(x) = 3x - 1 and g(x) = x + 2, find (f - g)(x).
exis [7]

Answer:

Answer of this is... D... 2x-3

4 0
3 years ago
I need help with my khan, plz help meeee (7th-grade math)
adoni [48]

Answer:

The equation is ⇒ 7( x - 0.75 ) = 2.8

The normal price of one cookie = $1.15

Step-by-step explanation:

Let the normal price is x

So, the cost of cookie today is x - 0.75

The price of 7 of them will be $2.8

So the equation will be:

<u> 7( x - 0.75 ) = 2.8</u>

Solve for x:

x - 0.75 = 2.8/7 = 0.4

x = 0.4 + 0.75 = 1.15

6 0
3 years ago
Find the perimeter of the following shape:<br> A. 10.8<br> B. 11<br> C. 11.4<br> D. 11.6
dimaraw [331]

Answer:

A: 10.8

Step-by-step explanation:

AD = BC

AB = DC

2AD + 2AB

AD = ±\sqrt{3^2+1^2} ≈ ±3.1622

AD ≈ 3.1622

AB = ±\sqrt{2^2+1^2} ≈ ±2.236

AB ≈ 2.236

2AD + 2AB = 2*3.1622 + 2*2.236 ≈ 10.79 ≈ 10.8

5 0
3 years ago
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