All categories

3 years ago

What is the area of a triangle that has a heaight of 5 feet and a base length of 4 feet

Mathematics

2 answers:

guapka [62]3 years ago

3 0

Answer:

10ft²

Step-by-step explanation:

LUCKY_DIMON [66]3 years ago

3 0

Answer:

10 ft²

Step-by-step explanation:

base × height ÷ 2

4 × 5 ÷ 2 = 10

You might be interested in

Find the area. Use 3.14 for the value of . Round your π answer. when the radius is 20ft?

lys-0071 [83]

Answer:

1256.64ft squared.

8 0

2 years ago

Find the value of x.

dimaraw [331]

Answer:

$2\sqrt{77}$

Step-by-step explanation:

Use the Pythagorean theorem. $a^{2} +b^{2}=c^{2}$

a and b are the two side lengths

c is the hypotenuse (value across from the right angle)

Plug in the values that you are given.

$a^{2} +4^{2} =18^{2}$

Solve for x

$x^{2} =18^{2} -4^{2}$

$x^{2} =308$

x= $\sqrt{308}$

$x=2\sqrt{77}$

5 0

2 years ago

If the total area of a picture measuring 10 inches by 12 inches plus a matting of uniform width surrounding the picture is 224 s

ELEN [110]

Let
x-----------> uniform width surrounding the picture

we know that
(10+2x)*(12+2x)=224-----> 120+20x+24x+4x²=224
4x²+44x+120-224=0
4x²+44x-104=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
x=2 in

the answer is
2 inches

4 0

2 years ago

What is 100,000,000 written as a power of ten? a. 10^8 b. 10^9 c. 10^10 d. 10^11

Minchanka [31]

$100,000,000 = 100 \times 10^6 = 1\times 10^8\\~~\underbrace{~~~~~~~~~~~~~~~}\\~~~~~~~~~8$

Your answer is a. 10^8

7 0

2 years ago

What is the fifth term in the geometric sequence described by this explicit formula y=40×(-2)^(n-1)

cupoosta [38]

Answer:

The fifth term is 620

Step-by-step explanation:

y=40×(-2)^(n-1)

The 5th terms means n=5

y = 40 * (-2) ^ (5-1)

= 40 * (-2) ^4

= 40 * (16)

= 640

5 0

3 years ago