All categories

3 years ago

How do I work this problem out

Mathematics

2 answers:

Lemur [1.5K]3 years ago

6 0

1. x + 18 = 57
2. Subtract 18 from both sides
x = 39

saul85 [17]3 years ago

4 0

18-57 & then divide 1 to each side

You might be interested in

In triangle ABC, cos A =

nikitadnepr [17]

The other expression that has a value of $\frac{7}{25}$ is A) sin B.

Step-by-step explanation:

Step 1:

$sin\theta = \frac{oppositeside}{hypotenuse} ,$ $cos\theta = \frac{adjacentside}{hypotenuse} ,$ $tan \theta = \frac{opposite side}{adjacent side} .$

For angle B, the opposite side measures 7 units, the adjacent side measures 24 units and the hypotenuse measures 25 units.

$sinB= \frac{oppositeside}{hypotenuse} = \frac{7}{25} ,$ $tan B = \frac{opposite side}{adjacent side} = \frac{7}{24} ,$ $cosB = \frac{adjacentside}{hypotenuse} = \frac{24}{25}.$

Step 2:

For angle A, the opposite side measures 24 units, the adjacent side measures 7 units and the hypotenuse measures 25 units.

$tan A = \frac{opposite side}{adjacent side} = \frac{24}{25} .$

Step 3:

tan C cannot be determined as C is the right angle. The opposite side and hypotenuse of the triangle would be the same.

So sin B also has a value of $\frac{7}{25}.$ This is option A.

7 0

3 years ago

Katrina purchases 3 theater tickets. The cost of each ticket is $19.50. The theater charges a $7.50 fee per order for shipping a

hodyreva [135]

C, $61.00 hope this helps

6 0

4 years ago

A(1, 3), B(5, 3), and D(1, -2) are three vertices of rectangle ABCD. The coordinates of vertex C are

harkovskaia [24]

The answer is C, (5,-2) if you graph all the other points you can easily see where the missing point should be considering it's a rectangle

6 0

3 years ago

Referring to the figure, find m∠1

IRINA_888 [86]

∡1 = 180° - 30°

4 0

3 years ago

Choose the formula for the volume of a cone V=1/3

mote1985 [20]

If you know the cone volume and the cone radius, then
height = 3*Volume / PI * r^2

answer is D

3 0

3 years ago