3 years ago

Multiple choice please answer please

Mathematics

1 answer:

tankabanditka [31]3 years ago

3 0

Answer:

B. $cos^{-1} \bigg(\frac{4}{5}\bigg)$

Step-by-step explanation:

$\because \cos \angle B = \bigg(\frac{4}{5}\bigg)\\\\\therefore \angle B =cos^{-1} \bigg(\frac{4}{5}\bigg)\\$

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Please and thank you

algol [13]

Answer:

the last one

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Y = 3x - 4<br> y = 4 + x

Andrei [34K]

Is This Substitution?

Cause if it is, then Y = 3x - 4
Y = 4 + x
= (4, 8)

7 0

3 years ago

(7x – 10) – (–6x – 8).

xeze [42]

Answer:

13x-2

Step-by-step explanation:

1) distribute the negative sign to each term in the second parentheses

(7x-10)-(-6x-8)

7x-10+6x+8

2) combine like terms

7x+6x= 13x

-10+8=-2

13x-2

Hope this helps!

4 0

2 years ago

What substitution method to use to solve -6x+y=4<br> 2x+8y=20

Nastasia [14]

I believe the answer to your question is the distributive property

3 0

2 years ago

Jose is baking cakes. He needs 3/4 of butter for each cake. One stick of butter is a 1/2 of a cup. How many sticks do he need to

Anastaziya [24]

Answer: 6 sticks

Step-by-step explanation:

Given

Joe needs $\frac{3}{4}$ butter for each cake

One stick of butter is equivalent to 0.5 cup

So, joe need

$\dfrac{3}{4}\times \dfrac{1}{2}=\dfrac{3}{8}\ \text{cup}$

for each cake

To bake 8 cakes, it is

$\Rightarrow \dfrac{3}{4}\times 8=6\ \text{sticks}$

3 0

2 years ago