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3 years ago

If a triangle has angle measurements of 25∘ and 40∘, what is the measure of the third side?

Mathematics

2 answers:

Elan Coil [88]3 years ago

7 0

Answer:

Step-by-step explanation:

Let the third angle be x

Sum of all the angles of a triangle = 180°

25 + 40 + x = 180

65 + x = 180

x = 180 - 65

x = 115°

lbvjy [14]3 years ago

3 0

Answer:

115 degrees

Step-by-step explanation:

for all triangles, the sum of all their angles is 180 degrees so...

180-40-25=115

so the third angle is 115

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A company that makes hair-care products had 8,000 people try a new shampoo. Of the 8,000 people,64 had a mild allergic reaction.

Greeley [361]

Answer:

1.25% of all the 8,000 people who tried the shampoo had a mild allergic reaction

Step-by-step explanation:

Divide 8,000 by 64 to get the unsimplified percentage

Then put a dot between 1 and 2 to get the percentage to get the percentage, 1.25%

8 0

3 years ago

Calculate the volume of water in the cup when it is full

maxonik [38]

To find:

The volume of the water in the cup when it is full.

Solution:

The volume of the water is equal to the difference of the volume of the small cone and the larger cone.

Here, the ratio of the radius of both cones is equal to the ratio of their heights. SO,

$\begin{gathered} \frac{r}{2.7}=\frac{20}{20-8} \\ \frac{r}{2.7}=\frac{20}{12} \\ \frac{r}{2.7}=\frac{5}{3} \\ r=4.5 \end{gathered}$

The radius of the larger cone is 4.5 cm.

So, the volume of the water is:

$\begin{gathered} V=\frac{1}{3}\pi R^2H-\frac{1}{3}\pi r^2h \\ =\frac{1}{3}\pi(R^2H-r^2h) \\ =\frac{1}{3}\pi((4.5)^2(20)-(2.7)^2(12)) \\ =\frac{1}{3}\cdot\frac{22}{7}(405-87.48) \\ =\frac{22}{21}(317.52) \\ =332.64cm^2 \end{gathered}$

The volume of water when the cup is full is 332.64 cm^2.

7 0

1 year ago

Not right answer... Help

Igoryamba

Answer: -6

Step-by-step explanation:

3 0

3 years ago

What is a square unit

barxatty [35]

Answer:

A square unit is a small area of a square used to find a total.

Step-by-step explanation:

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3 years ago