3 years ago

.

Mathematics

1 answer:

REY [17]3 years ago

6 0

Answer:

ummm idk if I had picture I could probs explain it but since I don't I cant

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Find the value of x

erik [133]

Answer:

x= 1.74

Step-by-step explanation:

Area of triangle= ½ ×base ×height

We are given that the base is (x +4), the height is x and the area is 5.

5= ½(x +4)(x)

Multiply both sides by 2:

x(x +4)= 10

Expand:

x² +4x= 10

x² +4x -10= 0

Let's use the quadratic formula!

$\boxed{x = \frac{ - b± \sqrt{ {b}^{2} - 4ac} }{2a} }$

$x = \frac{ - 4± \sqrt{ {4}^{2} - 4(1)( - 10)} }{2(1)}$

$x = \frac{ - 4± \sqrt{56} }{2}$

x= 1.74 or x= -5.74 (reject)

(nearest hundredth)

6 0

3 years ago

Solve the system. 4x+2y+3z=12 2x−3y+5z=−7 6x−y+4z=−3

Vikki [24]

Are these 3 separate questions?

4 0

3 years ago

Max used 12 1⁄2 pounds of deli meat in one week at his sandwich shop. If he uses 1⁄4 of a pound of meat for each sandwich, how m

bulgar [2K]

Answer:

$12 \frac{1}{2} \div \frac{1}{4} = x \\ 12.5 \div 0.25 = x \\ x = 50$

Max made 50 sandwiches

7 0

3 years ago

Which equation has the same graph as 4x + 8y = 12?

Nutka1998 [239]

Answer:

$4x + 8y = 12 \\ 4(x + 2y) = 12 \\ \frac{4(x + 2y)}{4} = \frac{12}{4} \\ x + 2y = 3$

8 0

3 years ago

Find the value of X 6-4x= -8x -8

xenn [34]

Answer:

Fraction:

$x=-\frac{7}{2}$

Decimal:

$x=-3.5$

Step-by-step explanation:

Step-by-step on how to solve it is in the picture below.

Hope this helps! :)

4 0

3 years ago

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