4 years ago

Help me please i need help

Mathematics

1 answer:

ycow [4]4 years ago

5 0

i feel like its D, i apologize if im wrong though.

You might be interested in

The Art department at a high school is selling a collection book of sketches created by the

lisov135 [29]

Answer:

167 books are needed to get above the minimum of 1500 dollars

8 0

3 years ago

Read 2 more answers

The mean of 7 numbers is 15. When an 8th number is added the mean decreases to 12. What is the 8th number?

ale4655 [162]

Answer:

The 8th number is -9

Step-by-step explanation:

With an average, the sum of the seven numbers divided by 7 is 15.

In order to add an 8th number, we set up

$\frac{7*15+x}{8}=12\\105 + x = 96\\x = -9\\\\\frac{105-9}{8}=\frac{96}{8}=12$

3 0

4 years ago

Length when found is the length at birth plus the product of age and yearly growth.

Brut [27]

Answer:

length when found = length at birth + (age × yearly growth)

8 0

3 years ago

Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary. B = 107°, a

Archy [21]

Answer: $105.19 \text{ square cm}$

Step-by-step explanation:

Since, by the SAS formula of finding the area of triangle,

The area of triangle, $A = \frac{1}{2}\times s_1\times s_2\times sin\theta$

Where, $s_1$ and $s_2$ are adjacent sides and $\theta$ is the included angle of these sides

Here, $s_1=22$ $s_2=10$

And, $\theta=107^{\circ}$

Thus, the area of the triangle ABC,

$A = \frac{1}{2}\times 22\times 10\times sin (107)^{\circ}$

$A = 110\times 0.95630475596$

$A = 105.193523156\approx 105.19\text { square cm}$

Therefore, Third Option is correct.

3 0

4 years ago

Cannon balls for an antique cannon are stacked next to it in four layers to form a square pyramid. How many cannon balls are in

labwork [276]

The amount of balls in a given layer can be found by squaring the layer it is in

4 layers
top layer (1st) is 1
2nd is 4
3rd layer is 9
4th is 16

add them up
1+4+9+16=30

30 in that pyramid

7 0

3 years ago