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4 years ago

Evaluate:4+(2.1)(0.5)

Mathematics

2 answers:

irina1246 [14]4 years ago

8 0

The answer for this question is 5.05

rewona [7]4 years ago

4 0

The answer is 5.05. Just multiply the values first and then add the 4 because of PEMDAS, the order of operations

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What is the length of BC¯¯¯¯¯ ?

adell [148]

X + 9 = 2x - 8
2x - x = 9 + 8
x = 17

BC = x = 17

answer
17 units

3 0

3 years ago

Read 2 more answers

What is the surface area of a box with a height and width of 5 inches and a length of 8 inches ?

vodomira [7]

Answer:

210 sq in

Step-by-step explanation:

Box dimensions: 5 x 5 x 8

2 faces: 5 x 5 -> 2 * 5 * 5 = 50

4 faces: 5 x 8 -> 4 * 5 * 8 = 160

Total = 50 + 160 = 210 sq in

5 0

3 years ago

Alex has 64 cubes with dimensions in feet (ft), like the one shown. He uses all the cubes to fill a box shaped like a larger rec

Vilka [71]

Answer:

The volume, in cubic feet, of the larger rectangular prism is 64 cubic feet

Step-by-step explanation:

Length of small cube = $\frac{1}{2} ft$

Volume of each cube = Side^3

Volume of each cube = $(\frac{1}{2})^3$

= $\frac{1}{8} ft^3$

Volume of 64 cubes = $64 \times \frac{1}{8}$

Volume of 64 cubes $= 8 ft^3$

We are given that He uses all the cubes to fill a box shaped like a larger rectangular prism.

So, Volume of 64 cubes = Volume of rectangular prism

So, If there are 64 of these cubes in the larger prism, then the volume, in cubic feet, of the larger rectangular prism is 64 cubic feet

7 0

4 years ago

Solve (√7-√3)^2 A.) 10-2√21 B.) 4-2√21 C. 4 D. -4

natulia [17]

The answer is A
10-2sqrt21

7 0

3 years ago

PLS HELP ASAP:Find all the missing elements:

adelina 88 [10]

Answer:

b ≈ 9.5, c ≈ 14.7

Step-by-step explanation:

Using the Sine rule in Δ ABC, that is

$\frac{a}{sinA}$ = $\frac{b}{sinB}$ , substitute values

$\frac{7}{sin23}$ = $\frac{b}{sin32}$ ( cross- multiply )

b × sin23° = 7 × sin32° ( divide both sides by sin23° )

b = $\frac{7sin32}{sin23}$ ≈ 9.5 ( to the nearest tenth )

Also

$\frac{a}{sinA}$ = $\frac{c}{sinC}$

$\frac{7}{sin23}$ = $\frac{c}{sin125}$ ( cross- multiply )

c × sin23° = 7 × sin125° ( divide both sides by sin23° )

c = $\frac{7sin125}{sin23}$ ≈ 14.7 ( to the nearest tenth )

3 0

3 years ago