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love history [14]
3 years ago
9

A triangle has a base of 9 inches and a height of 4 inches.

Mathematics
1 answer:
SashulF [63]3 years ago
4 0
The answer is A which is 18 square inches. This is because the formula for finding the area of a triangle is 1/2 multiplied by the length of the base multiplied by the height. And so when you calculate this, you will get 18 square inches :)
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How many leaves are there in the universal set?
zaharov [31]

Answer:

1)

8 leaves

2)

6 leaves

3)

2 leaves

Step-by-step explanation:

A universal set is the collection of all objects in a particular context or theory so there are 8 leaves all together. Its asking for the shaded ones only on the second question all together which is 6 leaves. and then not shaded ones all together which is 2 leaves.

7 0
3 years ago
3. How many solutions does the system of equations have? 2x=-10y+ 6 and x+5y=3
ozzi

Answer:

<h2>3. Infinitely many</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}ax+by=c\\dx+ey=f\end{array}\right\\\\(1)\\\text{if}\ a=d,\ b=e,\ c=f,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=5\end{array}\right\\(2)\\\text{if}\ a=d,\ b=e,\ c\neq f,\ \text{then the system of equations has no solution}\\Example:\\\left\{\begin{array}{ccc}2x-3y=5\\2x-3y=-5\end{array}\right

(3)\\\text{if}\ a\neq d\ \text{or}\ b\neq e,\ \text{then the system of equations has infinitely many solutions}\\Example:\\\left\{\begin{array}{ccc}x-3y=5\\2x-3y=5\end{array}\right

\text{We have:}\\\\\left\{\begin{array}{ccc}2x=-10y+6&\text{add 10y to both sides}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}2x+10y=6&\text{divide both sides by 2}\\x+5y=3\end{array}\right\\\left\{\begin{array}{ccc}x+5y=3\\x+5y=3\end{array}\right

4 0
4 years ago
Calculate the area of the square. Round to the nearest hundredt)
noname [10]

Answer:

144

Step-by-step explanation:

In a 45-45-90 triangle, the ratio of the lengths of the sides is:

leg   :    leg    :    hypotenuse

 1     :     1       :       sqrt(2)

Draw a segment from the center point to the bottom side of the square that is perpendicular to the bottom side. Now you have a right triangle. The hypotenuse is 6sqrt(2). The legs are 6. The bottom leg is half the side of the square.

side of square = 2 * 6 = 12

area = side^2 = 12^2 = 144

8 0
3 years ago
3y - 5 if y = 8 answer the expression, please
Elena-2011 [213]

3(8)-5

3x8=24

24-5=19

the answer is 19

7 0
3 years ago
Read 2 more answers
Please help me!!!!!!!!
sattari [20]
So hmm notice the picture below

so V = l*w*h

thus   \bf V=lwh\qquad &#10;\begin{cases}&#10;l=2\\&#10;w=5\\&#10;\end{cases}\implies V=2\cdot 5\cdot h\implies \boxed{V}=10h&#10;\\\\\\&#10;V=\cfrac{m}{d}\qquad &#10;\begin{cases}&#10;m=mass\\&#10;d=density\\&#10;----------\\&#10;m=10\\&#10;d=0.5&#10;\end{cases}\implies V=\cfrac{10}{0.5}&#10;\\\\\\&#10;\boxed{10h}=\cfrac{10}{0.5}

solve for "h"

4 0
3 years ago
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