All categories

3 years ago

Select TWO expressions that contain a coefficient of 4.

Mathematics

1 answer:

Nastasia [14]3 years ago

7 0

Answer:

Step-by-step explanation:

You might be interested in

Write these fractions in their simplest form: A. 49/84 B. 216/64

ikadub [295]

Answer:

A. 7/12

B. 27/8 or 3 & 3/8

5 0

3 years ago

Read 2 more answers

If 10x+3y=38 and -2x+13y=50 what is the value of -x+2y

amid [387]

Answer:101/17

Step-by-step explanation:

5 0

3 years ago

Find the perimeter of the quarter-circle. Give your answer to the nearest whole number.

Bezzdna [24]

Answer:

The perimeter of the quarter-circle is 200 cm.

Step-by-step explanation:

Given that the angle of quarter-circle is 90°. So using Length of Arc formula, you are able to find the length of curve :

$arc = \frac{θ}{360} \times 2 \: \pi \: r$

Let r be radius = 56 cm,

Let θ = 90°

$arc = \frac{90}{360} \times 2 \times\pi \times 56$

$= \frac{1}{4} \times 2 \times \pi \times 56$

$= \frac{1}{2} \times \pi \times 56$

$= 28\pi \: cm$

We have already found the arc. Next we have to add up together to find the perimeter :

$p = 56 + 56 + 28\pi$

$p = 112 + 28\pi$

$p = 200 \: cm \: (3s.f)$

6 0

3 years ago

Read 2 more answers

A banana has 80 calories. This is 5 calories less than one seventh of the calories in a banana split. How many calories are in a

krek1111 [17]

Answer:

There are 525 calories in a banana split.

Step-by-step explanation:

We know that a banana has 80 calories and 5 calories less than this

80 - 5 = 75 calories

is 1/7 that of the calories in a banana split.

This means that the banana split will have 7 times 75 calories

75 * 7 = 525

There are 525 calories in a banana split.

5 0

4 years ago

Read 2 more answers

Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC

Kamila [148]

The side b is opposite to the angle B, applying the law of the sines, we have:

 $\frac{a}{sinA} = \frac{b}{sinB}$
$\frac{20}{sin30^0} = \frac{b}{sin45^0}$
$\frac{20}{ \frac{1}{2} } = \frac{b}{ \frac{ \sqrt{2} }{2} }$
$20* \frac{ \sqrt{2} }{2} = b* \frac{1}{2}$
$\frac{20 \sqrt{2} }{2} = \frac{b}{2}$
$2*b =2*20 \sqrt{2}$
$2b = 40 \sqrt{2}$
$b = \frac{40 \sqrt{2} }{2}$
$\boxed{b = 20 \sqrt{2} }$

6 0

3 years ago

Read 2 more answers